| File: | var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp |
| Warning: | line 275, column 15 Value stored to 'state' during its initialization is never read |
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| 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| 2 | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
| 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| 6 | |
| 7 | #include "RemoteLazyInputStream.h" |
| 8 | #include "RemoteLazyInputStreamChild.h" |
| 9 | #include "RemoteLazyInputStreamParent.h" |
| 10 | #include "chrome/common/ipc_message_utils.h" |
| 11 | #include "mozilla/ErrorNames.h" |
| 12 | #include "mozilla/Logging.h" |
| 13 | #include "mozilla/PRemoteLazyInputStream.h" |
| 14 | #include "mozilla/ipc/Endpoint.h" |
| 15 | #include "mozilla/ipc/InputStreamParams.h" |
| 16 | #include "mozilla/ipc/MessageChannel.h" |
| 17 | #include "mozilla/ipc/ProtocolMessageUtils.h" |
| 18 | #include "mozilla/net/SocketProcessParent.h" |
| 19 | #include "mozilla/SlicedInputStream.h" |
| 20 | #include "mozilla/NonBlockingAsyncInputStream.h" |
| 21 | #include "nsIAsyncInputStream.h" |
| 22 | #include "nsIAsyncOutputStream.h" |
| 23 | #include "nsID.h" |
| 24 | #include "nsIInputStream.h" |
| 25 | #include "nsIPipe.h" |
| 26 | #include "nsNetUtil.h" |
| 27 | #include "nsStreamUtils.h" |
| 28 | #include "nsStringStream.h" |
| 29 | #include "RemoteLazyInputStreamStorage.h" |
| 30 | #include "RemoteLazyInputStreamThread.h" |
| 31 | |
| 32 | namespace mozilla { |
| 33 | |
| 34 | mozilla::LazyLogModule gRemoteLazyStreamLog("RemoteLazyStream"); |
| 35 | |
| 36 | namespace { |
| 37 | |
| 38 | class InputStreamCallbackRunnable final : public DiscardableRunnable { |
| 39 | public: |
| 40 | // Note that the execution can be synchronous in case the event target is |
| 41 | // null. |
| 42 | static void Execute(already_AddRefed<nsIInputStreamCallback> aCallback, |
| 43 | already_AddRefed<nsIEventTarget> aEventTarget, |
| 44 | RemoteLazyInputStream* aStream) { |
| 45 | RefPtr<InputStreamCallbackRunnable> runnable = |
| 46 | new InputStreamCallbackRunnable(std::move(aCallback), aStream); |
| 47 | |
| 48 | nsCOMPtr<nsIEventTarget> target = std::move(aEventTarget); |
| 49 | if (target) { |
| 50 | target->Dispatch(runnable, NS_DISPATCH_NORMALnsIEventTarget::DISPATCH_NORMAL); |
| 51 | } else { |
| 52 | runnable->Run(); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | NS_IMETHODvirtual nsresult |
| 57 | Run() override { |
| 58 | mCallback->OnInputStreamReady(mStream); |
| 59 | mCallback = nullptr; |
| 60 | mStream = nullptr; |
| 61 | return NS_OK; |
| 62 | } |
| 63 | |
| 64 | private: |
| 65 | InputStreamCallbackRunnable( |
| 66 | already_AddRefed<nsIInputStreamCallback> aCallback, |
| 67 | RemoteLazyInputStream* aStream) |
| 68 | : DiscardableRunnable("dom::InputStreamCallbackRunnable"), |
| 69 | mCallback(std::move(aCallback)), |
| 70 | mStream(aStream) { |
| 71 | MOZ_ASSERT(mCallback)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mCallback)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mCallback))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mCallback", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 71); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mCallback" ")" ); do { *((volatile int*)__null) = 71; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 72 | MOZ_ASSERT(mStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mStream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 72); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mStream" ")") ; do { *((volatile int*)__null) = 72; __attribute__((nomerge) ) ::abort(); } while (false); } } while (false); |
| 73 | } |
| 74 | |
| 75 | RefPtr<nsIInputStreamCallback> mCallback; |
| 76 | RefPtr<RemoteLazyInputStream> mStream; |
| 77 | }; |
| 78 | |
| 79 | class FileMetadataCallbackRunnable final : public DiscardableRunnable { |
| 80 | public: |
| 81 | static void Execute(nsIFileMetadataCallback* aCallback, |
| 82 | nsIEventTarget* aEventTarget, |
| 83 | RemoteLazyInputStream* aStream) { |
| 84 | MOZ_ASSERT(aCallback)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aCallback)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aCallback))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aCallback", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 84); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aCallback" ")" ); do { *((volatile int*)__null) = 84; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 85 | MOZ_ASSERT(aEventTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEventTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEventTarget))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEventTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 85); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEventTarget" ")"); do { *((volatile int*)__null) = 85; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 86 | |
| 87 | RefPtr<FileMetadataCallbackRunnable> runnable = |
| 88 | new FileMetadataCallbackRunnable(aCallback, aStream); |
| 89 | |
| 90 | nsCOMPtr<nsIEventTarget> target = aEventTarget; |
| 91 | target->Dispatch(runnable, NS_DISPATCH_NORMALnsIEventTarget::DISPATCH_NORMAL); |
| 92 | } |
| 93 | |
| 94 | NS_IMETHODvirtual nsresult |
| 95 | Run() override { |
| 96 | mCallback->OnFileMetadataReady(mStream); |
| 97 | mCallback = nullptr; |
| 98 | mStream = nullptr; |
| 99 | return NS_OK; |
| 100 | } |
| 101 | |
| 102 | private: |
| 103 | FileMetadataCallbackRunnable(nsIFileMetadataCallback* aCallback, |
| 104 | RemoteLazyInputStream* aStream) |
| 105 | : DiscardableRunnable("dom::FileMetadataCallbackRunnable"), |
| 106 | mCallback(aCallback), |
| 107 | mStream(aStream) { |
| 108 | MOZ_ASSERT(mCallback)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mCallback)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mCallback))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mCallback", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 108); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mCallback" ")" ); do { *((volatile int*)__null) = 108; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 109 | MOZ_ASSERT(mStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mStream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 109); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mStream" ")" ); do { *((volatile int*)__null) = 109; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 110 | } |
| 111 | |
| 112 | nsCOMPtr<nsIFileMetadataCallback> mCallback; |
| 113 | RefPtr<RemoteLazyInputStream> mStream; |
| 114 | }; |
| 115 | |
| 116 | } // namespace |
| 117 | |
| 118 | NS_IMPL_ADDREF(RemoteLazyInputStream)MozExternalRefCountType RemoteLazyInputStream::AddRef(void) { static_assert(!std::is_destructible_v<RemoteLazyInputStream >, "Reference-counted class " "RemoteLazyInputStream" " should not have a public destructor. " "Make this class's destructor non-public"); do { static_assert ( mozilla::detail::AssertionConditionType<decltype(int32_t (mRefCnt) >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) >= 0" " (" "illegal refcnt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 118); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 118; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); do { static_assert( mozilla::detail::AssertionConditionType <decltype("RemoteLazyInputStream" != nullptr)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!("RemoteLazyInputStream" != nullptr))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("\"RemoteLazyInputStream\" != nullptr" " (" "Must specify a name" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 118); AnnotateMozCrashReason("MOZ_ASSERT" "(" "\"RemoteLazyInputStream\" != nullptr" ") (" "Must specify a name" ")"); do { *((volatile int*)__null ) = 118; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); if (!mRefCnt.isThreadSafe) _mOwningThread .AssertOwnership("RemoteLazyInputStream" " not thread-safe"); nsrefcnt count = ++mRefCnt; NS_LogAddRef((this), (count), ("RemoteLazyInputStream" ), (uint32_t)(sizeof(*this))); return count; }; |
| 119 | NS_IMPL_RELEASE(RemoteLazyInputStream)MozExternalRefCountType RemoteLazyInputStream::Release(void) { do { static_assert( mozilla::detail::AssertionConditionType< decltype(int32_t(mRefCnt) > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) > 0))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) > 0" " (" "dup release" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 119); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 119 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); do { static_assert( mozilla::detail::AssertionConditionType <decltype("RemoteLazyInputStream" != nullptr)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!("RemoteLazyInputStream" != nullptr))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("\"RemoteLazyInputStream\" != nullptr" " (" "Must specify a name" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 119); AnnotateMozCrashReason("MOZ_ASSERT" "(" "\"RemoteLazyInputStream\" != nullptr" ") (" "Must specify a name" ")"); do { *((volatile int*)__null ) = 119; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); if (!mRefCnt.isThreadSafe) _mOwningThread .AssertOwnership("RemoteLazyInputStream" " not thread-safe"); const char* const nametmp = "RemoteLazyInputStream"; nsrefcnt count = --mRefCnt; NS_LogRelease((this), (count), (nametmp)) ; if (count == 0) { mRefCnt = 1; delete (this); return 0; } return count; }; |
| 120 | |
| 121 | NS_INTERFACE_MAP_BEGIN(RemoteLazyInputStream)nsresult RemoteLazyInputStream::QueryInterface(const nsIID& aIID, void** aInstancePtr) { do { if (!(aInstancePtr)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "QueryInterface requires a non-NULL destination!" , "aInstancePtr", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 121); MOZ_PretendNoReturn(); } } while (0); nsISupports* foundInterface ; |
| 122 | NS_INTERFACE_MAP_ENTRY(nsIInputStream)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIInputStream>)) foundInterface = static_cast<nsIInputStream*>(this); else |
| 123 | NS_INTERFACE_MAP_ENTRY(nsIAsyncInputStream)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIAsyncInputStream>)) foundInterface = static_cast<nsIAsyncInputStream*>(this); else |
| 124 | NS_INTERFACE_MAP_ENTRY(nsIInputStreamCallback)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIInputStreamCallback>)) foundInterface = static_cast<nsIInputStreamCallback*>(this); else |
| 125 | NS_INTERFACE_MAP_ENTRY(nsICloneableInputStream)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsICloneableInputStream>)) foundInterface = static_cast<nsICloneableInputStream*>(this); else |
| 126 | NS_INTERFACE_MAP_ENTRY(nsICloneableInputStreamWithRange)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsICloneableInputStreamWithRange> )) foundInterface = static_cast<nsICloneableInputStreamWithRange *>(this); else |
| 127 | NS_INTERFACE_MAP_ENTRY(nsIIPCSerializableInputStream)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIIPCSerializableInputStream>)) foundInterface = static_cast<nsIIPCSerializableInputStream*>(this); else |
| 128 | NS_INTERFACE_MAP_ENTRY(nsIFileMetadata)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIFileMetadata>)) foundInterface = static_cast<nsIFileMetadata*>(this); else |
| 129 | NS_INTERFACE_MAP_ENTRY(nsIAsyncFileMetadata)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIAsyncFileMetadata>)) foundInterface = static_cast<nsIAsyncFileMetadata*>(this); else |
| 130 | NS_INTERFACE_MAP_ENTRY(nsIInputStreamLength)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIInputStreamLength>)) foundInterface = static_cast<nsIInputStreamLength*>(this); else |
| 131 | NS_INTERFACE_MAP_ENTRY(nsIAsyncInputStreamLength)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIAsyncInputStreamLength>)) foundInterface = static_cast<nsIAsyncInputStreamLength*>(this); else |
| 132 | NS_INTERFACE_MAP_ENTRY(mozIRemoteLazyInputStream)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, mozIRemoteLazyInputStream>)) foundInterface = static_cast<mozIRemoteLazyInputStream*>(this); else |
| 133 | NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIInputStream)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsISupports>)) foundInterface = static_cast <nsISupports*>(static_cast<nsIInputStream*>(this) ); else |
| 134 | NS_INTERFACE_MAP_ENDfoundInterface = 0; nsresult status; if (!foundInterface) { do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aIID.Equals((nsISupports::COMTypeInfo<nsISupports , void>::kIID)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aIID.Equals((nsISupports::COMTypeInfo <nsISupports, void>::kIID))))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 134); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" ")"); do { *((volatile int*)__null) = 134; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); status = NS_NOINTERFACE ; } else { (foundInterface)->AddRef(); status = NS_OK; } * aInstancePtr = foundInterface; return status; } |
| 135 | |
| 136 | RemoteLazyInputStream::RemoteLazyInputStream(RemoteLazyInputStreamChild* aActor, |
| 137 | uint64_t aStart, uint64_t aLength) |
| 138 | : mStart(aStart), mLength(aLength), mState(eInit), mActor(aActor) { |
| 139 | MOZ_ASSERT(aActor)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aActor)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aActor))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aActor", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 139); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActor" ")") ; do { *((volatile int*)__null) = 139; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 140 | |
| 141 | mActor->StreamCreated(); |
| 142 | |
| 143 | auto storage = RemoteLazyInputStreamStorage::Get().unwrapOr(nullptr); |
| 144 | if (storage) { |
| 145 | nsCOMPtr<nsIInputStream> stream; |
| 146 | storage->GetStream(mActor->StreamID(), mStart, mLength, |
| 147 | getter_AddRefs(stream)); |
| 148 | if (stream) { |
| 149 | mState = eRunning; |
| 150 | mInnerStream = stream; |
| 151 | } |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | RemoteLazyInputStream::RemoteLazyInputStream(nsIInputStream* aStream) |
| 156 | : mStart(0), mLength(UINT64_MAX(18446744073709551615UL)), mState(eRunning), mInnerStream(aStream) {} |
| 157 | |
| 158 | static already_AddRefed<RemoteLazyInputStreamChild> BindChildActor( |
| 159 | nsID aId, mozilla::ipc::Endpoint<PRemoteLazyInputStreamChild> aEndpoint) { |
| 160 | auto* thread = RemoteLazyInputStreamThread::GetOrCreate(); |
| 161 | if (NS_WARN_IF(!thread)NS_warn_if_impl(!thread, "!thread", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 161)) { |
| 162 | return nullptr; |
| 163 | } |
| 164 | auto actor = MakeRefPtr<RemoteLazyInputStreamChild>(aId); |
| 165 | thread->Dispatch( |
| 166 | NS_NewRunnableFunction("RemoteLazyInputStream::BindChildActor", |
| 167 | [actor, childEp = std::move(aEndpoint)]() mutable { |
| 168 | bool ok = childEp.Bind(actor); |
| 169 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Binding child actor for %s (%p): %s", nsIDToCString (actor->StreamID()).get(), actor.get(), ok ? "OK" : "ERROR" ); } } while (0) |
| 170 | ("Binding child actor for %s (%p): %s",do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Binding child actor for %s (%p): %s", nsIDToCString (actor->StreamID()).get(), actor.get(), ok ? "OK" : "ERROR" ); } } while (0) |
| 171 | nsIDToCString(actor->StreamID()).get(),do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Binding child actor for %s (%p): %s", nsIDToCString (actor->StreamID()).get(), actor.get(), ok ? "OK" : "ERROR" ); } } while (0) |
| 172 | actor.get(), ok ? "OK" : "ERROR"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Binding child actor for %s (%p): %s", nsIDToCString (actor->StreamID()).get(), actor.get(), ok ? "OK" : "ERROR" ); } } while (0); |
| 173 | })); |
| 174 | |
| 175 | return actor.forget(); |
| 176 | } |
| 177 | |
| 178 | already_AddRefed<RemoteLazyInputStream> RemoteLazyInputStream::WrapStream( |
| 179 | nsIInputStream* aInputStream) { |
| 180 | MOZ_ASSERT(XRE_IsParentProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(XRE_IsParentProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(XRE_IsParentProcess()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("XRE_IsParentProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 180); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 180; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 181 | if (nsCOMPtr<mozIRemoteLazyInputStream> lazyStream = |
| 182 | do_QueryInterface(aInputStream)) { |
| 183 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Returning already-wrapped stream"); } } while (0) |
| 184 | ("Returning already-wrapped stream"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Returning already-wrapped stream"); } } while (0); |
| 185 | return lazyStream.forget().downcast<RemoteLazyInputStream>(); |
| 186 | } |
| 187 | |
| 188 | // If we have a stream and are in the parent process, create a new actor pair |
| 189 | // and transfer ownership of the stream into storage. |
| 190 | auto streamStorage = RemoteLazyInputStreamStorage::Get(); |
| 191 | if (NS_WARN_IF(streamStorage.isErr())NS_warn_if_impl(streamStorage.isErr(), "streamStorage.isErr()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 191)) { |
| 192 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Warning,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "Cannot wrap with no storage!"); } } while (0) |
| 193 | ("Cannot wrap with no storage!"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "Cannot wrap with no storage!"); } } while (0); |
| 194 | return nullptr; |
| 195 | } |
| 196 | |
| 197 | nsID id = nsID::GenerateUUID(); |
| 198 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Wrapping stream %p as %s", aInputStream , nsIDToCString(id).get()); } } while (0) |
| 199 | ("Wrapping stream %p as %s", aInputStream, nsIDToCString(id).get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Wrapping stream %p as %s", aInputStream , nsIDToCString(id).get()); } } while (0); |
| 200 | streamStorage.inspect()->AddStream(aInputStream, id); |
| 201 | |
| 202 | mozilla::ipc::Endpoint<PRemoteLazyInputStreamParent> parentEp; |
| 203 | mozilla::ipc::Endpoint<PRemoteLazyInputStreamChild> childEp; |
| 204 | MOZ_ALWAYS_SUCCEEDS(do { if ((__builtin_expect(!!(((bool)(__builtin_expect(!!(!NS_FAILED_impl (PRemoteLazyInputStream::CreateEndpoints(&parentEp, & childEp))), 1)))), 1))) { } else { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(false)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("false" " (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 205); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")"); do { *((volatile int*)__null) = 205; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 205 | PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))do { if ((__builtin_expect(!!(((bool)(__builtin_expect(!!(!NS_FAILED_impl (PRemoteLazyInputStream::CreateEndpoints(&parentEp, & childEp))), 1)))), 1))) { } else { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(false)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("false" " (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 205); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")"); do { *((volatile int*)__null) = 205; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 206 | |
| 207 | // Bind the actor on our background thread. |
| 208 | streamStorage.inspect()->TaskQueue()->Dispatch(NS_NewRunnableFunction( |
| 209 | "RemoteLazyInputStreamParent::Bind", |
| 210 | [parentEp = std::move(parentEp), id]() mutable { |
| 211 | auto actor = MakeRefPtr<RemoteLazyInputStreamParent>(id); |
| 212 | bool ok = parentEp.Bind(actor); |
| 213 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Binding parent actor for %s (%p): %s", nsIDToCString (id).get(), actor.get(), ok ? "OK" : "ERROR"); } } while (0) |
| 214 | ("Binding parent actor for %s (%p): %s",do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Binding parent actor for %s (%p): %s", nsIDToCString (id).get(), actor.get(), ok ? "OK" : "ERROR"); } } while (0) |
| 215 | nsIDToCString(id).get(), actor.get(), ok ? "OK" : "ERROR"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Binding parent actor for %s (%p): %s", nsIDToCString (id).get(), actor.get(), ok ? "OK" : "ERROR"); } } while (0); |
| 216 | })); |
| 217 | |
| 218 | RefPtr<RemoteLazyInputStreamChild> actor = |
| 219 | BindChildActor(id, std::move(childEp)); |
| 220 | |
| 221 | if (!actor) { |
| 222 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Warning,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "Wrapping stream failed as we are probably late in shutdown!" ); } } while (0) |
| 223 | ("Wrapping stream failed as we are probably late in shutdown!"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "Wrapping stream failed as we are probably late in shutdown!" ); } } while (0); |
| 224 | return do_AddRef(new RemoteLazyInputStream()); |
| 225 | } |
| 226 | |
| 227 | return do_AddRef(new RemoteLazyInputStream(actor)); |
| 228 | } |
| 229 | |
| 230 | NS_IMETHODIMPnsresult RemoteLazyInputStream::TakeInternalStream( |
| 231 | nsIInputStream** aStream) { |
| 232 | RefPtr<RemoteLazyInputStreamChild> actor; |
| 233 | { |
| 234 | MutexAutoLock lock(mMutex); |
| 235 | if (mState == eInit || mState == ePending) { |
| 236 | return NS_BASE_STREAM_WOULD_BLOCK; |
| 237 | } |
| 238 | if (mState == eClosed) { |
| 239 | return NS_BASE_STREAM_CLOSED; |
| 240 | } |
| 241 | if (mInputStreamCallback) { |
| 242 | MOZ_ASSERT_UNREACHABLE(do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "Do not call TakeInternalStream after calling AsyncWait" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 243); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Do not call TakeInternalStream after calling AsyncWait" ")"); do { *((volatile int*)__null) = 243; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 243 | "Do not call TakeInternalStream after calling AsyncWait")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "Do not call TakeInternalStream after calling AsyncWait" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 243); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Do not call TakeInternalStream after calling AsyncWait" ")"); do { *((volatile int*)__null) = 243; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 244 | return NS_ERROR_UNEXPECTED; |
| 245 | } |
| 246 | |
| 247 | // Take the inner stream and return it, then close ourselves. |
| 248 | if (mInnerStream) { |
| 249 | mInnerStream.forget(aStream); |
| 250 | } else if (mAsyncInnerStream) { |
| 251 | mAsyncInnerStream.forget(aStream); |
| 252 | } |
| 253 | mState = eClosed; |
| 254 | actor = mActor.forget(); |
| 255 | } |
| 256 | if (actor) { |
| 257 | actor->StreamConsumed(); |
| 258 | } |
| 259 | return NS_OK; |
| 260 | } |
| 261 | |
| 262 | NS_IMETHODIMPnsresult RemoteLazyInputStream::GetInternalStreamID(nsID& aID) { |
| 263 | MutexAutoLock lock(mMutex); |
| 264 | if (!mActor) { |
| 265 | return NS_ERROR_NOT_AVAILABLE; |
| 266 | } |
| 267 | |
| 268 | aID = mActor->StreamID(); |
| 269 | return NS_OK; |
| 270 | } |
| 271 | |
| 272 | RemoteLazyInputStream::~RemoteLazyInputStream() { Close(); } |
| 273 | |
| 274 | nsCString RemoteLazyInputStream::Describe() { |
| 275 | const char* state = "?"; |
Value stored to 'state' during its initialization is never read | |
| 276 | switch (mState) { |
| 277 | case eInit: |
| 278 | state = "i"; |
| 279 | break; |
| 280 | case ePending: |
| 281 | state = "p"; |
| 282 | break; |
| 283 | case eRunning: |
| 284 | state = "r"; |
| 285 | break; |
| 286 | case eClosed: |
| 287 | state = "c"; |
| 288 | break; |
| 289 | } |
| 290 | return nsPrintfCString( |
| 291 | "[%p, %s, %s, %p%s, %s%s|%s%s]", this, state, |
| 292 | mActor ? nsIDToCString(mActor->StreamID()).get() : "<no actor>", |
| 293 | mInnerStream ? mInnerStream.get() : mAsyncInnerStream.get(), |
| 294 | mAsyncInnerStream ? "(A)" : "", mInputStreamCallback ? "I" : "", |
| 295 | mInputStreamCallbackEventTarget ? "+" : "", |
| 296 | mFileMetadataCallback ? "F" : "", |
| 297 | mFileMetadataCallbackEventTarget ? "+" : ""); |
| 298 | } |
| 299 | |
| 300 | // nsIInputStream interface |
| 301 | |
| 302 | NS_IMETHODIMPnsresult |
| 303 | RemoteLazyInputStream::Available(uint64_t* aLength) { |
| 304 | nsCOMPtr<nsIAsyncInputStream> stream; |
| 305 | { |
| 306 | MutexAutoLock lock(mMutex); |
| 307 | |
| 308 | // We don't have a remoteStream yet: let's return 0. |
| 309 | if (mState == eInit || mState == ePending) { |
| 310 | *aLength = 0; |
| 311 | return NS_OK; |
| 312 | } |
| 313 | |
| 314 | if (mState == eClosed) { |
| 315 | return NS_BASE_STREAM_CLOSED; |
| 316 | } |
| 317 | |
| 318 | MOZ_ASSERT(mState == eRunning)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mState == eRunning)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mState == eRunning))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mState == eRunning" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 318); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mState == eRunning" ")"); do { *((volatile int*)__null) = 318; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 319 | MOZ_ASSERT(mInnerStream || mAsyncInnerStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mInnerStream || mAsyncInnerStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mInnerStream || mAsyncInnerStream ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mInnerStream || mAsyncInnerStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 319); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mInnerStream || mAsyncInnerStream" ")"); do { *((volatile int*)__null) = 319; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 320 | |
| 321 | nsresult rv = EnsureAsyncRemoteStream(); |
| 322 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 322)) { |
| 323 | return rv; |
| 324 | } |
| 325 | |
| 326 | stream = mAsyncInnerStream; |
| 327 | } |
| 328 | |
| 329 | MOZ_ASSERT(stream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(stream)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(stream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("stream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 329); AnnotateMozCrashReason("MOZ_ASSERT" "(" "stream" ")") ; do { *((volatile int*)__null) = 329; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 330 | return stream->Available(aLength); |
| 331 | } |
| 332 | |
| 333 | NS_IMETHODIMPnsresult |
| 334 | RemoteLazyInputStream::StreamStatus() { |
| 335 | nsCOMPtr<nsIAsyncInputStream> stream; |
| 336 | { |
| 337 | MutexAutoLock lock(mMutex); |
| 338 | |
| 339 | // We don't have a remoteStream yet: let's return 0. |
| 340 | if (mState == eInit || mState == ePending) { |
| 341 | return NS_OK; |
| 342 | } |
| 343 | |
| 344 | if (mState == eClosed) { |
| 345 | return NS_BASE_STREAM_CLOSED; |
| 346 | } |
| 347 | |
| 348 | MOZ_ASSERT(mState == eRunning)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mState == eRunning)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mState == eRunning))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mState == eRunning" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 348); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mState == eRunning" ")"); do { *((volatile int*)__null) = 348; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 349 | MOZ_ASSERT(mInnerStream || mAsyncInnerStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mInnerStream || mAsyncInnerStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mInnerStream || mAsyncInnerStream ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mInnerStream || mAsyncInnerStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 349); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mInnerStream || mAsyncInnerStream" ")"); do { *((volatile int*)__null) = 349; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 350 | |
| 351 | nsresult rv = EnsureAsyncRemoteStream(); |
| 352 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 352)) { |
| 353 | return rv; |
| 354 | } |
| 355 | |
| 356 | stream = mAsyncInnerStream; |
| 357 | } |
| 358 | |
| 359 | MOZ_ASSERT(stream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(stream)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(stream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("stream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 359); AnnotateMozCrashReason("MOZ_ASSERT" "(" "stream" ")") ; do { *((volatile int*)__null) = 359; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 360 | return stream->StreamStatus(); |
| 361 | } |
| 362 | |
| 363 | NS_IMETHODIMPnsresult |
| 364 | RemoteLazyInputStream::Read(char* aBuffer, uint32_t aCount, |
| 365 | uint32_t* aReadCount) { |
| 366 | nsCOMPtr<nsIAsyncInputStream> stream; |
| 367 | { |
| 368 | MutexAutoLock lock(mMutex); |
| 369 | |
| 370 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Read(%u) %s", aCount, Describe().get()) ; } } while (0) |
| 371 | ("Read(%u) %s", aCount, Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Read(%u) %s", aCount, Describe().get()) ; } } while (0); |
| 372 | |
| 373 | // Read is not available is we don't have a remoteStream. |
| 374 | if (mState == eInit || mState == ePending) { |
| 375 | return NS_BASE_STREAM_WOULD_BLOCK; |
| 376 | } |
| 377 | |
| 378 | if (mState == eClosed) { |
| 379 | return NS_BASE_STREAM_CLOSED; |
| 380 | } |
| 381 | |
| 382 | MOZ_ASSERT(mState == eRunning)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mState == eRunning)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mState == eRunning))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mState == eRunning" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 382); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mState == eRunning" ")"); do { *((volatile int*)__null) = 382; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 383 | MOZ_ASSERT(mInnerStream || mAsyncInnerStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mInnerStream || mAsyncInnerStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mInnerStream || mAsyncInnerStream ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mInnerStream || mAsyncInnerStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 383); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mInnerStream || mAsyncInnerStream" ")"); do { *((volatile int*)__null) = 383; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 384 | |
| 385 | nsresult rv = EnsureAsyncRemoteStream(); |
| 386 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 386)) { |
| 387 | return rv; |
| 388 | } |
| 389 | |
| 390 | stream = mAsyncInnerStream; |
| 391 | } |
| 392 | |
| 393 | MOZ_ASSERT(stream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(stream)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(stream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("stream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 393); AnnotateMozCrashReason("MOZ_ASSERT" "(" "stream" ")") ; do { *((volatile int*)__null) = 393; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 394 | nsresult rv = stream->Read(aBuffer, aCount, aReadCount); |
| 395 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 396 | return rv; |
| 397 | } |
| 398 | |
| 399 | // If some data has been read, we mark the stream as consumed. |
| 400 | if (*aReadCount > 0) { |
| 401 | MarkConsumed(); |
| 402 | } |
| 403 | |
| 404 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Read %u/%u bytes", *aReadCount, aCount) ; } } while (0) |
| 405 | ("Read %u/%u bytes", *aReadCount, aCount))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Read %u/%u bytes", *aReadCount, aCount) ; } } while (0); |
| 406 | |
| 407 | return NS_OK; |
| 408 | } |
| 409 | |
| 410 | NS_IMETHODIMPnsresult |
| 411 | RemoteLazyInputStream::ReadSegments(nsWriteSegmentFun aWriter, void* aClosure, |
| 412 | uint32_t aCount, uint32_t* aResult) { |
| 413 | nsCOMPtr<nsIAsyncInputStream> stream; |
| 414 | { |
| 415 | MutexAutoLock lock(mMutex); |
| 416 | |
| 417 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "ReadSegments(%u) %s", aCount, Describe( ).get()); } } while (0) |
| 418 | ("ReadSegments(%u) %s", aCount, Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "ReadSegments(%u) %s", aCount, Describe( ).get()); } } while (0); |
| 419 | |
| 420 | // ReadSegments is not available is we don't have a remoteStream. |
| 421 | if (mState == eInit || mState == ePending) { |
| 422 | return NS_BASE_STREAM_WOULD_BLOCK; |
| 423 | } |
| 424 | |
| 425 | if (mState == eClosed) { |
| 426 | return NS_BASE_STREAM_CLOSED; |
| 427 | } |
| 428 | |
| 429 | MOZ_ASSERT(mState == eRunning)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mState == eRunning)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mState == eRunning))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mState == eRunning" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 429); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mState == eRunning" ")"); do { *((volatile int*)__null) = 429; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 430 | MOZ_ASSERT(mInnerStream || mAsyncInnerStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mInnerStream || mAsyncInnerStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mInnerStream || mAsyncInnerStream ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mInnerStream || mAsyncInnerStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 430); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mInnerStream || mAsyncInnerStream" ")"); do { *((volatile int*)__null) = 430; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 431 | |
| 432 | nsresult rv = EnsureAsyncRemoteStream(); |
| 433 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 433)) { |
| 434 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Warning,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "EnsureAsyncRemoteStream failed! %s %s", mozilla::GetStaticErrorName(rv), Describe().get()); } } while (0) |
| 435 | ("EnsureAsyncRemoteStream failed! %s %s",do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "EnsureAsyncRemoteStream failed! %s %s", mozilla::GetStaticErrorName(rv), Describe().get()); } } while (0) |
| 436 | mozilla::GetStaticErrorName(rv), Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "EnsureAsyncRemoteStream failed! %s %s", mozilla::GetStaticErrorName(rv), Describe().get()); } } while (0); |
| 437 | return rv; |
| 438 | } |
| 439 | |
| 440 | stream = mAsyncInnerStream; |
| 441 | } |
| 442 | |
| 443 | MOZ_ASSERT(stream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(stream)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(stream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("stream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 443); AnnotateMozCrashReason("MOZ_ASSERT" "(" "stream" ")") ; do { *((volatile int*)__null) = 443; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 444 | nsresult rv = stream->ReadSegments(aWriter, aClosure, aCount, aResult); |
| 445 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 445)) { |
| 446 | return rv; |
| 447 | } |
| 448 | |
| 449 | // If some data has been read, we mark the stream as consumed. |
| 450 | if (*aResult != 0) { |
| 451 | MarkConsumed(); |
| 452 | } |
| 453 | |
| 454 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "ReadSegments %u/%u bytes", *aResult, aCount ); } } while (0) |
| 455 | ("ReadSegments %u/%u bytes", *aResult, aCount))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "ReadSegments %u/%u bytes", *aResult, aCount ); } } while (0); |
| 456 | |
| 457 | return NS_OK; |
| 458 | } |
| 459 | |
| 460 | void RemoteLazyInputStream::MarkConsumed() { |
| 461 | RefPtr<RemoteLazyInputStreamChild> actor; |
| 462 | { |
| 463 | MutexAutoLock lock(mMutex); |
| 464 | if (mActor) { |
| 465 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "MarkConsumed %s", Describe().get()); } } while (0) |
| 466 | ("MarkConsumed %s", Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "MarkConsumed %s", Describe().get()); } } while (0); |
| 467 | } |
| 468 | |
| 469 | actor = mActor.forget(); |
| 470 | } |
| 471 | if (actor) { |
| 472 | actor->StreamConsumed(); |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | NS_IMETHODIMPnsresult |
| 477 | RemoteLazyInputStream::IsNonBlocking(bool* aNonBlocking) { |
| 478 | *aNonBlocking = true; |
| 479 | return NS_OK; |
| 480 | } |
| 481 | |
| 482 | NS_IMETHODIMPnsresult |
| 483 | RemoteLazyInputStream::Close() { |
| 484 | RefPtr<RemoteLazyInputStreamChild> actor; |
| 485 | |
| 486 | nsCOMPtr<nsIAsyncInputStream> asyncInnerStream; |
| 487 | nsCOMPtr<nsIInputStream> innerStream; |
| 488 | |
| 489 | RefPtr<nsIInputStreamCallback> inputStreamCallback; |
| 490 | nsCOMPtr<nsIEventTarget> inputStreamCallbackEventTarget; |
| 491 | |
| 492 | { |
| 493 | MutexAutoLock lock(mMutex); |
| 494 | if (mState == eClosed) { |
| 495 | return NS_OK; |
| 496 | } |
| 497 | |
| 498 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Close %s", Describe().get()); } } while ( 0) |
| 499 | ("Close %s", Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Close %s", Describe().get()); } } while ( 0); |
| 500 | |
| 501 | actor = mActor.forget(); |
| 502 | |
| 503 | asyncInnerStream = mAsyncInnerStream.forget(); |
| 504 | innerStream = mInnerStream.forget(); |
| 505 | |
| 506 | // TODO(Bug 1737783): Notify to the mFileMetadataCallback that this |
| 507 | // lazy input stream has been closed. |
| 508 | mFileMetadataCallback = nullptr; |
| 509 | mFileMetadataCallbackEventTarget = nullptr; |
| 510 | |
| 511 | inputStreamCallback = mInputStreamCallback.forget(); |
| 512 | inputStreamCallbackEventTarget = mInputStreamCallbackEventTarget.forget(); |
| 513 | |
| 514 | mState = eClosed; |
| 515 | } |
| 516 | |
| 517 | if (actor) { |
| 518 | actor->StreamConsumed(); |
| 519 | } |
| 520 | |
| 521 | if (inputStreamCallback) { |
| 522 | InputStreamCallbackRunnable::Execute( |
| 523 | inputStreamCallback.forget(), inputStreamCallbackEventTarget.forget(), |
| 524 | this); |
| 525 | } |
| 526 | |
| 527 | if (asyncInnerStream) { |
| 528 | asyncInnerStream->CloseWithStatus(NS_BASE_STREAM_CLOSED); |
| 529 | } |
| 530 | |
| 531 | if (innerStream) { |
| 532 | innerStream->Close(); |
| 533 | } |
| 534 | |
| 535 | return NS_OK; |
| 536 | } |
| 537 | |
| 538 | // nsICloneableInputStream interface |
| 539 | |
| 540 | NS_IMETHODIMPnsresult |
| 541 | RemoteLazyInputStream::GetCloneable(bool* aCloneable) { |
| 542 | *aCloneable = true; |
| 543 | return NS_OK; |
| 544 | } |
| 545 | |
| 546 | NS_IMETHODIMPnsresult |
| 547 | RemoteLazyInputStream::Clone(nsIInputStream** aResult) { |
| 548 | return CloneWithRange(0, UINT64_MAX(18446744073709551615UL), aResult); |
| 549 | } |
| 550 | |
| 551 | // nsICloneableInputStreamWithRange interface |
| 552 | |
| 553 | NS_IMETHODIMPnsresult |
| 554 | RemoteLazyInputStream::CloneWithRange(uint64_t aStart, uint64_t aLength, |
| 555 | nsIInputStream** aResult) { |
| 556 | MutexAutoLock lock(mMutex); |
| 557 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "CloneWithRange %" "l" "u" " %" "l" "u" " %s" , aStart, aLength, Describe().get()); } } while (0) |
| 558 | ("CloneWithRange %" PRIu64 " %" PRIu64 " %s", aStart, aLength,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "CloneWithRange %" "l" "u" " %" "l" "u" " %s" , aStart, aLength, Describe().get()); } } while (0) |
| 559 | Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "CloneWithRange %" "l" "u" " %" "l" "u" " %s" , aStart, aLength, Describe().get()); } } while (0); |
| 560 | |
| 561 | nsresult rv; |
| 562 | |
| 563 | RefPtr<RemoteLazyInputStream> stream; |
| 564 | if (mState == eClosed) { |
| 565 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose, ("Cloning closed stream"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Cloning closed stream"); } } while (0); |
| 566 | stream = new RemoteLazyInputStream(); |
| 567 | stream.forget(aResult); |
| 568 | return NS_OK; |
| 569 | } |
| 570 | |
| 571 | uint64_t start = 0; |
| 572 | uint64_t length = 0; |
| 573 | auto maxLength = CheckedUint64(mLength) - aStart; |
| 574 | if (maxLength.isValid()) { |
| 575 | start = mStart + aStart; |
| 576 | length = std::min(maxLength.value(), aLength); |
| 577 | } |
| 578 | |
| 579 | // If the slice would be empty, wrap an empty input stream and return it. |
| 580 | if (length == 0) { |
| 581 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose, ("Creating empty stream"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Creating empty stream"); } } while (0); |
| 582 | |
| 583 | nsCOMPtr<nsIInputStream> emptyStream; |
| 584 | rv = NS_NewCStringInputStream(getter_AddRefs(emptyStream), ""_ns); |
| 585 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 585)) { |
| 586 | return rv; |
| 587 | } |
| 588 | |
| 589 | stream = new RemoteLazyInputStream(emptyStream); |
| 590 | stream.forget(aResult); |
| 591 | return NS_OK; |
| 592 | } |
| 593 | |
| 594 | // If we still have a connection to our actor, that means we haven't read any |
| 595 | // data yet, and can clone + slice by building a new stream backed by the same |
| 596 | // actor. |
| 597 | if (mActor) { |
| 598 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Cloning stream with actor"); } } while ( 0) |
| 599 | ("Cloning stream with actor"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Cloning stream with actor"); } } while ( 0); |
| 600 | |
| 601 | stream = new RemoteLazyInputStream(mActor, start, length); |
| 602 | stream.forget(aResult); |
| 603 | return NS_OK; |
| 604 | } |
| 605 | |
| 606 | // We no longer have our actor, either because we were constructed without |
| 607 | // one, or we've already begun reading. Perform the clone locally on our inner |
| 608 | // input stream. |
| 609 | |
| 610 | nsCOMPtr<nsIInputStream> innerStream = mInnerStream; |
| 611 | if (mAsyncInnerStream) { |
| 612 | innerStream = mAsyncInnerStream; |
| 613 | } |
| 614 | |
| 615 | nsCOMPtr<nsICloneableInputStream> cloneable = do_QueryInterface(innerStream); |
| 616 | if (!cloneable || !cloneable->GetCloneable()) { |
| 617 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Cloning non-cloneable stream - copying to pipe" ); } } while (0) |
| 618 | ("Cloning non-cloneable stream - copying to pipe"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Cloning non-cloneable stream - copying to pipe" ); } } while (0); |
| 619 | |
| 620 | // If our internal stream isn't cloneable, to perform a clone we'll need to |
| 621 | // copy into a pipe and replace our internal stream. |
| 622 | nsCOMPtr<nsIAsyncInputStream> pipeIn; |
| 623 | nsCOMPtr<nsIAsyncOutputStream> pipeOut; |
| 624 | NS_NewPipe2(getter_AddRefs(pipeIn), getter_AddRefs(pipeOut), true, true); |
| 625 | |
| 626 | RefPtr<RemoteLazyInputStreamThread> thread = |
| 627 | RemoteLazyInputStreamThread::GetOrCreate(); |
| 628 | if (NS_WARN_IF(!thread)NS_warn_if_impl(!thread, "!thread", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 628)) { |
| 629 | return NS_ERROR_ILLEGAL_DURING_SHUTDOWN; |
| 630 | } |
| 631 | |
| 632 | mAsyncInnerStream = pipeIn; |
| 633 | mInnerStream = nullptr; |
| 634 | |
| 635 | // If we have a callback pending, we need to re-call AsyncWait on the inner |
| 636 | // stream. This should not re-enter us immediately, as `pipeIn` hasn't been |
| 637 | // sent any data yet, but we may be called again as soon as `NS_AsyncCopy` |
| 638 | // has begun copying. |
| 639 | if (mInputStreamCallback) { |
| 640 | mAsyncInnerStream->AsyncWait(this, mInputStreamCallbackFlags, |
| 641 | mInputStreamCallbackRequestedCount, |
| 642 | mInputStreamCallbackEventTarget); |
| 643 | } |
| 644 | |
| 645 | rv = NS_AsyncCopy(innerStream, pipeOut, thread, |
| 646 | NS_ASYNCCOPY_VIA_WRITESEGMENTS); |
| 647 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 647)) { |
| 648 | // The copy failed, revert the changes we did and restore our previous |
| 649 | // inner stream. |
| 650 | mAsyncInnerStream = nullptr; |
| 651 | mInnerStream = innerStream; |
| 652 | return rv; |
| 653 | } |
| 654 | |
| 655 | cloneable = do_QueryInterface(mAsyncInnerStream); |
| 656 | } |
| 657 | |
| 658 | MOZ_ASSERT(cloneable && cloneable->GetCloneable())do { static_assert( mozilla::detail::AssertionConditionType< decltype(cloneable && cloneable->GetCloneable())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(cloneable && cloneable->GetCloneable()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("cloneable && cloneable->GetCloneable()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 658); AnnotateMozCrashReason("MOZ_ASSERT" "(" "cloneable && cloneable->GetCloneable()" ")"); do { *((volatile int*)__null) = 658; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 659 | |
| 660 | // Check if we can clone more efficiently with a range. |
| 661 | if (length < UINT64_MAX(18446744073709551615UL)) { |
| 662 | if (nsCOMPtr<nsICloneableInputStreamWithRange> cloneableWithRange = |
| 663 | do_QueryInterface(cloneable)) { |
| 664 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose, ("Cloning with range"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Cloning with range"); } } while (0); |
| 665 | nsCOMPtr<nsIInputStream> cloned; |
| 666 | rv = cloneableWithRange->CloneWithRange(start, length, |
| 667 | getter_AddRefs(cloned)); |
| 668 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 669 | return rv; |
| 670 | } |
| 671 | |
| 672 | stream = new RemoteLazyInputStream(cloned); |
| 673 | stream.forget(aResult); |
| 674 | return NS_OK; |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | // Directly clone our inner stream, and then slice it if needed. |
| 679 | nsCOMPtr<nsIInputStream> cloned; |
| 680 | rv = cloneable->Clone(getter_AddRefs(cloned)); |
| 681 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 682 | return rv; |
| 683 | } |
| 684 | |
| 685 | if (length < UINT64_MAX(18446744073709551615UL)) { |
| 686 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Slicing stream with %" "l" "u" " %" "l" "u", start, length); } } while (0) |
| 687 | ("Slicing stream with %" PRIu64 " %" PRIu64, start, length))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Slicing stream with %" "l" "u" " %" "l" "u", start, length); } } while (0); |
| 688 | cloned = new SlicedInputStream(cloned.forget(), start, length); |
| 689 | } |
| 690 | |
| 691 | stream = new RemoteLazyInputStream(cloned); |
| 692 | stream.forget(aResult); |
| 693 | return NS_OK; |
| 694 | } |
| 695 | |
| 696 | // nsIAsyncInputStream interface |
| 697 | |
| 698 | NS_IMETHODIMPnsresult |
| 699 | RemoteLazyInputStream::CloseWithStatus(nsresult aStatus) { return Close(); } |
| 700 | |
| 701 | NS_IMETHODIMPnsresult |
| 702 | RemoteLazyInputStream::AsyncWait(nsIInputStreamCallback* aCallback, |
| 703 | uint32_t aFlags, uint32_t aRequestedCount, |
| 704 | nsIEventTarget* aEventTarget) { |
| 705 | // Ensure we always have an event target for AsyncWait callbacks, so that |
| 706 | // calls to `AsyncWait` cannot reenter us with `OnInputStreamReady`. |
| 707 | nsCOMPtr<nsIEventTarget> eventTarget = aEventTarget; |
| 708 | if (aCallback && !eventTarget) { |
| 709 | eventTarget = RemoteLazyInputStreamThread::GetOrCreate(); |
| 710 | if (NS_WARN_IF(!eventTarget)NS_warn_if_impl(!eventTarget, "!eventTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 710)) { |
| 711 | return NS_ERROR_ILLEGAL_DURING_SHUTDOWN; |
| 712 | } |
| 713 | } |
| 714 | |
| 715 | { |
| 716 | MutexAutoLock lock(mMutex); |
| 717 | |
| 718 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncWait(%p, %u, %u, %p) %s", aCallback , aFlags, aRequestedCount, aEventTarget, Describe().get()); } } while (0) |
| 719 | ("AsyncWait(%p, %u, %u, %p) %s", aCallback, aFlags, aRequestedCount,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncWait(%p, %u, %u, %p) %s", aCallback , aFlags, aRequestedCount, aEventTarget, Describe().get()); } } while (0) |
| 720 | aEventTarget, Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncWait(%p, %u, %u, %p) %s", aCallback , aFlags, aRequestedCount, aEventTarget, Describe().get()); } } while (0); |
| 721 | |
| 722 | // See RemoteLazyInputStream.h for more information about this state |
| 723 | // machine. |
| 724 | |
| 725 | nsCOMPtr<nsIAsyncInputStream> stream; |
| 726 | switch (mState) { |
| 727 | // First call, we need to retrieve the stream from the parent actor. |
| 728 | case eInit: |
| 729 | MOZ_ASSERT(mActor)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mActor)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(mActor))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mActor", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 729); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mActor" ")") ; do { *((volatile int*)__null) = 729; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 730 | |
| 731 | mInputStreamCallback = aCallback; |
| 732 | mInputStreamCallbackEventTarget = eventTarget; |
| 733 | mInputStreamCallbackFlags = aFlags; |
| 734 | mInputStreamCallbackRequestedCount = aRequestedCount; |
| 735 | mState = ePending; |
| 736 | |
| 737 | StreamNeeded(); |
| 738 | return NS_OK; |
| 739 | |
| 740 | // We are still waiting for the remote inputStream |
| 741 | case ePending: { |
| 742 | if (NS_WARN_IF(mInputStreamCallback && aCallback &&NS_warn_if_impl(mInputStreamCallback && aCallback && mInputStreamCallback != aCallback, "mInputStreamCallback && aCallback && mInputStreamCallback != aCallback" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 743) |
| 743 | mInputStreamCallback != aCallback)NS_warn_if_impl(mInputStreamCallback && aCallback && mInputStreamCallback != aCallback, "mInputStreamCallback && aCallback && mInputStreamCallback != aCallback" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 743)) { |
| 744 | return NS_ERROR_FAILURE; |
| 745 | } |
| 746 | |
| 747 | mInputStreamCallback = aCallback; |
| 748 | mInputStreamCallbackEventTarget = eventTarget; |
| 749 | mInputStreamCallbackFlags = aFlags; |
| 750 | mInputStreamCallbackRequestedCount = aRequestedCount; |
| 751 | return NS_OK; |
| 752 | } |
| 753 | |
| 754 | // We have the remote inputStream, let's check if we can execute the |
| 755 | // callback. |
| 756 | case eRunning: { |
| 757 | if (NS_WARN_IF(mInputStreamCallback && aCallback &&NS_warn_if_impl(mInputStreamCallback && aCallback && mInputStreamCallback != aCallback, "mInputStreamCallback && aCallback && mInputStreamCallback != aCallback" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 758) |
| 758 | mInputStreamCallback != aCallback)NS_warn_if_impl(mInputStreamCallback && aCallback && mInputStreamCallback != aCallback, "mInputStreamCallback && aCallback && mInputStreamCallback != aCallback" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 758)) { |
| 759 | return NS_ERROR_FAILURE; |
| 760 | } |
| 761 | |
| 762 | nsresult rv = EnsureAsyncRemoteStream(); |
| 763 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 763)) { |
| 764 | return rv; |
| 765 | } |
| 766 | |
| 767 | mInputStreamCallback = aCallback; |
| 768 | mInputStreamCallbackEventTarget = eventTarget; |
| 769 | mInputStreamCallbackFlags = aFlags; |
| 770 | mInputStreamCallbackRequestedCount = aRequestedCount; |
| 771 | |
| 772 | stream = mAsyncInnerStream; |
| 773 | break; |
| 774 | } |
| 775 | |
| 776 | case eClosed: |
| 777 | [[fallthrough]]; |
| 778 | default: |
| 779 | MOZ_ASSERT(mState == eClosed)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mState == eClosed)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mState == eClosed))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mState == eClosed" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 779); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mState == eClosed" ")"); do { *((volatile int*)__null) = 779; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 780 | if (NS_WARN_IF(mInputStreamCallback && aCallback &&NS_warn_if_impl(mInputStreamCallback && aCallback && mInputStreamCallback != aCallback, "mInputStreamCallback && aCallback && mInputStreamCallback != aCallback" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 781) |
| 781 | mInputStreamCallback != aCallback)NS_warn_if_impl(mInputStreamCallback && aCallback && mInputStreamCallback != aCallback, "mInputStreamCallback && aCallback && mInputStreamCallback != aCallback" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 781)) { |
| 782 | return NS_ERROR_FAILURE; |
| 783 | } |
| 784 | break; |
| 785 | } |
| 786 | |
| 787 | if (stream) { |
| 788 | return stream->AsyncWait(aCallback ? this : nullptr, aFlags, |
| 789 | aRequestedCount, eventTarget); |
| 790 | } |
| 791 | } |
| 792 | |
| 793 | if (aCallback) { |
| 794 | // if stream is nullptr here, that probably means the stream has |
| 795 | // been closed and the callback can be executed immediately |
| 796 | InputStreamCallbackRunnable::Execute(do_AddRef(aCallback), |
| 797 | do_AddRef(eventTarget), this); |
| 798 | } |
| 799 | return NS_OK; |
| 800 | } |
| 801 | |
| 802 | void RemoteLazyInputStream::StreamNeeded() { |
| 803 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "StreamNeeded %s", Describe().get()); } } while (0) |
| 804 | ("StreamNeeded %s", Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "StreamNeeded %s", Describe().get()); } } while (0); |
| 805 | |
| 806 | auto* thread = RemoteLazyInputStreamThread::GetOrCreate(); |
| 807 | if (NS_WARN_IF(!thread)NS_warn_if_impl(!thread, "!thread", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 807)) { |
| 808 | return; |
| 809 | } |
| 810 | thread->Dispatch(NS_NewRunnableFunction( |
| 811 | "RemoteLazyInputStream::StreamNeeded", |
| 812 | [self = RefPtr{this}, actor = mActor, start = mStart, length = mLength] { |
| 813 | MOZ_LOG(do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Sending StreamNeeded(%" "l" "u" " %" "l" "u" ") %s %d", start, length, nsIDToCString(actor->StreamID() ).get(), actor->CanSend()); } } while (0) |
| 814 | gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Sending StreamNeeded(%" "l" "u" " %" "l" "u" ") %s %d", start, length, nsIDToCString(actor->StreamID() ).get(), actor->CanSend()); } } while (0) |
| 815 | ("Sending StreamNeeded(%" PRIu64 " %" PRIu64 ") %s %d", start,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Sending StreamNeeded(%" "l" "u" " %" "l" "u" ") %s %d", start, length, nsIDToCString(actor->StreamID() ).get(), actor->CanSend()); } } while (0) |
| 816 | length, nsIDToCString(actor->StreamID()).get(), actor->CanSend()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Sending StreamNeeded(%" "l" "u" " %" "l" "u" ") %s %d", start, length, nsIDToCString(actor->StreamID() ).get(), actor->CanSend()); } } while (0); |
| 817 | |
| 818 | actor->SendStreamNeeded( |
| 819 | start, length, |
| 820 | [self](const Maybe<mozilla::ipc::IPCStream>& aStream) { |
| 821 | // Try to deserialize the stream from our remote, and close our |
| 822 | // stream if it fails. |
| 823 | nsCOMPtr<nsIInputStream> stream = |
| 824 | mozilla::ipc::DeserializeIPCStream(aStream); |
| 825 | if (NS_WARN_IF(!stream)NS_warn_if_impl(!stream, "!stream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 825)) { |
| 826 | NS_WARNING("Failed to deserialize IPC stream")NS_DebugBreak(NS_DEBUG_WARNING, "Failed to deserialize IPC stream" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 826); |
| 827 | self->Close(); |
| 828 | } |
| 829 | |
| 830 | // Lock our mutex to update the inner stream, and collect any |
| 831 | // callbacks which we need to invoke. |
| 832 | MutexAutoLock lock(self->mMutex); |
| 833 | |
| 834 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "ResolveStreamNeeded(%p) %s", stream.get() , self->Describe().get()); } } while (0) |
| 835 | ("ResolveStreamNeeded(%p) %s", stream.get(),do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "ResolveStreamNeeded(%p) %s", stream.get() , self->Describe().get()); } } while (0) |
| 836 | self->Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "ResolveStreamNeeded(%p) %s", stream.get() , self->Describe().get()); } } while (0); |
| 837 | |
| 838 | if (self->mState == ePending) { |
| 839 | self->mInnerStream = stream.forget(); |
| 840 | self->mState = eRunning; |
| 841 | |
| 842 | // Notify any listeners that we've now acquired the underlying |
| 843 | // stream, so file metadata information will be available. |
| 844 | nsCOMPtr<nsIFileMetadataCallback> fileMetadataCallback = |
| 845 | self->mFileMetadataCallback.forget(); |
| 846 | nsCOMPtr<nsIEventTarget> fileMetadataCallbackEventTarget = |
| 847 | self->mFileMetadataCallbackEventTarget.forget(); |
| 848 | if (fileMetadataCallback) { |
| 849 | FileMetadataCallbackRunnable::Execute( |
| 850 | fileMetadataCallback, fileMetadataCallbackEventTarget, |
| 851 | self); |
| 852 | } |
| 853 | |
| 854 | // **NOTE** we can re-enter this class here **NOTE** |
| 855 | // If we already have an input stream callback, attempt to |
| 856 | // register ourselves with AsyncWait on the underlying stream. |
| 857 | if (self->mInputStreamCallback) { |
| 858 | if (NS_FAILED(self->EnsureAsyncRemoteStream())((bool)(__builtin_expect(!!(NS_FAILED_impl(self->EnsureAsyncRemoteStream ())), 0))) || |
| 859 | NS_FAILED(self->mAsyncInnerStream->AsyncWait(((bool)(__builtin_expect(!!(NS_FAILED_impl(self->mAsyncInnerStream ->AsyncWait( self, self->mInputStreamCallbackFlags, self ->mInputStreamCallbackRequestedCount, self->mInputStreamCallbackEventTarget ))), 0))) |
| 860 | self, self->mInputStreamCallbackFlags,((bool)(__builtin_expect(!!(NS_FAILED_impl(self->mAsyncInnerStream ->AsyncWait( self, self->mInputStreamCallbackFlags, self ->mInputStreamCallbackRequestedCount, self->mInputStreamCallbackEventTarget ))), 0))) |
| 861 | self->mInputStreamCallbackRequestedCount,((bool)(__builtin_expect(!!(NS_FAILED_impl(self->mAsyncInnerStream ->AsyncWait( self, self->mInputStreamCallbackFlags, self ->mInputStreamCallbackRequestedCount, self->mInputStreamCallbackEventTarget ))), 0))) |
| 862 | self->mInputStreamCallbackEventTarget))((bool)(__builtin_expect(!!(NS_FAILED_impl(self->mAsyncInnerStream ->AsyncWait( self, self->mInputStreamCallbackFlags, self ->mInputStreamCallbackRequestedCount, self->mInputStreamCallbackEventTarget ))), 0)))) { |
| 863 | InputStreamCallbackRunnable::Execute( |
| 864 | self->mInputStreamCallback.forget(), |
| 865 | self->mInputStreamCallbackEventTarget.forget(), self); |
| 866 | } |
| 867 | } |
| 868 | } |
| 869 | |
| 870 | if (stream) { |
| 871 | NS_WARNING("Failed to save stream, closing it")NS_DebugBreak(NS_DEBUG_WARNING, "Failed to save stream, closing it" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 871); |
| 872 | stream->Close(); |
| 873 | } |
| 874 | }, |
| 875 | [self](mozilla::ipc::ResponseRejectReason) { |
| 876 | NS_WARNING("SendStreamNeeded rejected")NS_DebugBreak(NS_DEBUG_WARNING, "SendStreamNeeded rejected", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 876); |
| 877 | self->Close(); |
| 878 | }); |
| 879 | })); |
| 880 | } |
| 881 | |
| 882 | // nsIInputStreamCallback |
| 883 | |
| 884 | NS_IMETHODIMPnsresult |
| 885 | RemoteLazyInputStream::OnInputStreamReady(nsIAsyncInputStream* aStream) { |
| 886 | RefPtr<nsIInputStreamCallback> callback; |
| 887 | nsCOMPtr<nsIEventTarget> callbackEventTarget; |
| 888 | { |
| 889 | MutexAutoLock lock(mMutex); |
| 890 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "OnInputStreamReady %s", Describe().get()) ; } } while (0) |
| 891 | ("OnInputStreamReady %s", Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "OnInputStreamReady %s", Describe().get()) ; } } while (0); |
| 892 | |
| 893 | // We have been closed in the meantime. |
| 894 | if (mState == eClosed) { |
| 895 | return NS_OK; |
| 896 | } |
| 897 | |
| 898 | // We got a callback from the wrong stream, likely due to a `CloneWithRange` |
| 899 | // call while we were waiting. Ignore this callback. |
| 900 | if (mAsyncInnerStream != aStream) { |
| 901 | return NS_OK; |
| 902 | } |
| 903 | |
| 904 | MOZ_ASSERT(mState == eRunning)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mState == eRunning)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mState == eRunning))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mState == eRunning" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 904); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mState == eRunning" ")"); do { *((volatile int*)__null) = 904; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 905 | |
| 906 | // The callback has been canceled in the meantime. |
| 907 | if (!mInputStreamCallback) { |
| 908 | return NS_OK; |
| 909 | } |
| 910 | |
| 911 | callback.swap(mInputStreamCallback); |
| 912 | callbackEventTarget.swap(mInputStreamCallbackEventTarget); |
| 913 | } |
| 914 | |
| 915 | // This must be the last operation because the execution of the callback can |
| 916 | // be synchronous. |
| 917 | MOZ_ASSERT(callback)do { static_assert( mozilla::detail::AssertionConditionType< decltype(callback)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(callback))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("callback", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 917); AnnotateMozCrashReason("MOZ_ASSERT" "(" "callback" ")" ); do { *((volatile int*)__null) = 917; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 918 | InputStreamCallbackRunnable::Execute(callback.forget(), |
| 919 | callbackEventTarget.forget(), this); |
| 920 | return NS_OK; |
| 921 | } |
| 922 | |
| 923 | // nsIIPCSerializableInputStream |
| 924 | |
| 925 | void RemoteLazyInputStream::SerializedComplexity(uint32_t aMaxSize, |
| 926 | uint32_t* aSizeUsed, |
| 927 | uint32_t* aNewPipes, |
| 928 | uint32_t* aTransferables) { |
| 929 | *aTransferables = 1; |
| 930 | } |
| 931 | |
| 932 | void RemoteLazyInputStream::Serialize(mozilla::ipc::InputStreamParams& aParams, |
| 933 | uint32_t aMaxSize, uint32_t* aSizeUsed) { |
| 934 | *aSizeUsed = 0; |
| 935 | aParams = mozilla::ipc::RemoteLazyInputStreamParams(WrapNotNull(this)); |
| 936 | } |
| 937 | |
| 938 | bool RemoteLazyInputStream::Deserialize( |
| 939 | const mozilla::ipc::InputStreamParams& aParams) { |
| 940 | MOZ_CRASH("This should never be called.")do { do { } while (false); MOZ_ReportCrash("" "This should never be called." , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 940); AnnotateMozCrashReason("MOZ_CRASH(" "This should never be called." ")"); do { *((volatile int*)__null) = 940; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 941 | return false; |
| 942 | } |
| 943 | |
| 944 | // nsIAsyncFileMetadata |
| 945 | |
| 946 | NS_IMETHODIMPnsresult |
| 947 | RemoteLazyInputStream::AsyncFileMetadataWait(nsIFileMetadataCallback* aCallback, |
| 948 | nsIEventTarget* aEventTarget) { |
| 949 | MOZ_ASSERT(!!aCallback == !!aEventTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!!aCallback == !!aEventTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!!aCallback == !!aEventTarget ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!!aCallback == !!aEventTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 949); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!!aCallback == !!aEventTarget" ")"); do { *((volatile int*)__null) = 949; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 950 | |
| 951 | // If we have the callback, we must have the event target. |
| 952 | if (NS_WARN_IF(!!aCallback != !!aEventTarget)NS_warn_if_impl(!!aCallback != !!aEventTarget, "!!aCallback != !!aEventTarget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 952)) { |
| 953 | return NS_ERROR_FAILURE; |
| 954 | } |
| 955 | |
| 956 | // See RemoteLazyInputStream.h for more information about this state |
| 957 | // machine. |
| 958 | |
| 959 | { |
| 960 | MutexAutoLock lock(mMutex); |
| 961 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "AsyncFileMetadataWait(%p, %p) %s", aCallback , aEventTarget, Describe().get()); } } while (0) |
| 962 | ("AsyncFileMetadataWait(%p, %p) %s", aCallback, aEventTarget,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "AsyncFileMetadataWait(%p, %p) %s", aCallback , aEventTarget, Describe().get()); } } while (0) |
| 963 | Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "AsyncFileMetadataWait(%p, %p) %s", aCallback , aEventTarget, Describe().get()); } } while (0); |
| 964 | |
| 965 | switch (mState) { |
| 966 | // First call, we need to retrieve the stream from the parent actor. |
| 967 | case eInit: |
| 968 | MOZ_ASSERT(mActor)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mActor)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(mActor))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mActor", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 968); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mActor" ")") ; do { *((volatile int*)__null) = 968; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 969 | |
| 970 | mFileMetadataCallback = aCallback; |
| 971 | mFileMetadataCallbackEventTarget = aEventTarget; |
| 972 | mState = ePending; |
| 973 | |
| 974 | StreamNeeded(); |
| 975 | return NS_OK; |
| 976 | |
| 977 | // We are still waiting for the remote inputStream |
| 978 | case ePending: |
| 979 | if (mFileMetadataCallback && aCallback) { |
| 980 | return NS_ERROR_FAILURE; |
| 981 | } |
| 982 | |
| 983 | mFileMetadataCallback = aCallback; |
| 984 | mFileMetadataCallbackEventTarget = aEventTarget; |
| 985 | return NS_OK; |
| 986 | |
| 987 | // We have the remote inputStream, let's check if we can execute the |
| 988 | // callback. |
| 989 | case eRunning: |
| 990 | break; |
| 991 | |
| 992 | // Stream is closed. |
| 993 | default: |
| 994 | MOZ_ASSERT(mState == eClosed)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mState == eClosed)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mState == eClosed))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mState == eClosed" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 994); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mState == eClosed" ")"); do { *((volatile int*)__null) = 994; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 995 | return NS_BASE_STREAM_CLOSED; |
| 996 | } |
| 997 | |
| 998 | MOZ_ASSERT(mState == eRunning)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mState == eRunning)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mState == eRunning))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mState == eRunning" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 998); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mState == eRunning" ")"); do { *((volatile int*)__null) = 998; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 999 | } |
| 1000 | |
| 1001 | FileMetadataCallbackRunnable::Execute(aCallback, aEventTarget, this); |
| 1002 | return NS_OK; |
| 1003 | } |
| 1004 | |
| 1005 | // nsIFileMetadata |
| 1006 | |
| 1007 | NS_IMETHODIMPnsresult |
| 1008 | RemoteLazyInputStream::GetSize(int64_t* aRetval) { |
| 1009 | nsCOMPtr<nsIFileMetadata> fileMetadata; |
| 1010 | { |
| 1011 | MutexAutoLock lock(mMutex); |
| 1012 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "GetSize %s", Describe().get()); } } while (0) |
| 1013 | ("GetSize %s", Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "GetSize %s", Describe().get()); } } while (0); |
| 1014 | |
| 1015 | fileMetadata = do_QueryInterface(mInnerStream); |
| 1016 | if (!fileMetadata) { |
| 1017 | return mState == eClosed ? NS_BASE_STREAM_CLOSED : NS_ERROR_FAILURE; |
| 1018 | } |
| 1019 | } |
| 1020 | |
| 1021 | return fileMetadata->GetSize(aRetval); |
| 1022 | } |
| 1023 | |
| 1024 | NS_IMETHODIMPnsresult |
| 1025 | RemoteLazyInputStream::GetLastModified(int64_t* aRetval) { |
| 1026 | nsCOMPtr<nsIFileMetadata> fileMetadata; |
| 1027 | { |
| 1028 | MutexAutoLock lock(mMutex); |
| 1029 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "GetLastModified %s", Describe().get()); } } while (0) |
| 1030 | ("GetLastModified %s", Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "GetLastModified %s", Describe().get()); } } while (0); |
| 1031 | |
| 1032 | fileMetadata = do_QueryInterface(mInnerStream); |
| 1033 | if (!fileMetadata) { |
| 1034 | return mState == eClosed ? NS_BASE_STREAM_CLOSED : NS_ERROR_FAILURE; |
| 1035 | } |
| 1036 | } |
| 1037 | |
| 1038 | return fileMetadata->GetLastModified(aRetval); |
| 1039 | } |
| 1040 | |
| 1041 | NS_IMETHODIMPnsresult |
| 1042 | RemoteLazyInputStream::GetFileDescriptor(PRFileDesc** aRetval) { |
| 1043 | nsCOMPtr<nsIFileMetadata> fileMetadata; |
| 1044 | { |
| 1045 | MutexAutoLock lock(mMutex); |
| 1046 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "GetFileDescriptor %s", Describe().get() ); } } while (0) |
| 1047 | ("GetFileDescriptor %s", Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "GetFileDescriptor %s", Describe().get() ); } } while (0); |
| 1048 | |
| 1049 | fileMetadata = do_QueryInterface(mInnerStream); |
| 1050 | if (!fileMetadata) { |
| 1051 | return mState == eClosed ? NS_BASE_STREAM_CLOSED : NS_ERROR_FAILURE; |
| 1052 | } |
| 1053 | } |
| 1054 | |
| 1055 | return fileMetadata->GetFileDescriptor(aRetval); |
| 1056 | } |
| 1057 | |
| 1058 | nsresult RemoteLazyInputStream::EnsureAsyncRemoteStream() { |
| 1059 | // We already have an async remote stream. |
| 1060 | if (mAsyncInnerStream) { |
| 1061 | return NS_OK; |
| 1062 | } |
| 1063 | |
| 1064 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "EnsureAsyncRemoteStream %s", Describe().get ()); } } while (0) |
| 1065 | ("EnsureAsyncRemoteStream %s", Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "EnsureAsyncRemoteStream %s", Describe().get ()); } } while (0); |
| 1066 | |
| 1067 | if (NS_WARN_IF(!mInnerStream)NS_warn_if_impl(!mInnerStream, "!mInnerStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1067)) { |
| 1068 | return NS_ERROR_FAILURE; |
| 1069 | } |
| 1070 | |
| 1071 | nsCOMPtr<nsIInputStream> stream = mInnerStream; |
| 1072 | |
| 1073 | // Check if the stream is blocking, if it is, we want to make it non-blocking |
| 1074 | // using a pipe. |
| 1075 | bool nonBlocking = false; |
| 1076 | nsresult rv = stream->IsNonBlocking(&nonBlocking); |
| 1077 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1077)) { |
| 1078 | return rv; |
| 1079 | } |
| 1080 | |
| 1081 | // We don't return NS_ERROR_NOT_IMPLEMENTED from ReadSegments, |
| 1082 | // so it's possible that callers are expecting us to succeed in the future. |
| 1083 | // We need to make sure the stream we return here supports ReadSegments, |
| 1084 | // so wrap if in a buffered stream if necessary. |
| 1085 | // |
| 1086 | // We only need to do this if we won't be wrapping the stream in a pipe, which |
| 1087 | // will add buffering anyway. |
| 1088 | if (nonBlocking && !NS_InputStreamIsBuffered(stream)) { |
| 1089 | nsCOMPtr<nsIInputStream> bufferedStream; |
| 1090 | nsresult rv = NS_NewBufferedInputStream(getter_AddRefs(bufferedStream), |
| 1091 | stream.forget(), 4096); |
| 1092 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1092)) { |
| 1093 | return rv; |
| 1094 | } |
| 1095 | |
| 1096 | stream = bufferedStream; |
| 1097 | } |
| 1098 | |
| 1099 | nsCOMPtr<nsIAsyncInputStream> asyncStream = do_QueryInterface(stream); |
| 1100 | |
| 1101 | // If non-blocking and non-async, let's use NonBlockingAsyncInputStream. |
| 1102 | if (nonBlocking && !asyncStream) { |
| 1103 | rv = NonBlockingAsyncInputStream::Create(stream.forget(), |
| 1104 | getter_AddRefs(asyncStream)); |
| 1105 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1105)) { |
| 1106 | return rv; |
| 1107 | } |
| 1108 | |
| 1109 | MOZ_ASSERT(asyncStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(asyncStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(asyncStream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("asyncStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1109); AnnotateMozCrashReason("MOZ_ASSERT" "(" "asyncStream" ")"); do { *((volatile int*)__null) = 1109; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1110 | } |
| 1111 | |
| 1112 | if (!asyncStream) { |
| 1113 | // Let's make the stream async using the DOMFile thread. |
| 1114 | nsCOMPtr<nsIAsyncInputStream> pipeIn; |
| 1115 | nsCOMPtr<nsIAsyncOutputStream> pipeOut; |
| 1116 | NS_NewPipe2(getter_AddRefs(pipeIn), getter_AddRefs(pipeOut), true, true); |
| 1117 | |
| 1118 | RefPtr<RemoteLazyInputStreamThread> thread = |
| 1119 | RemoteLazyInputStreamThread::GetOrCreate(); |
| 1120 | if (NS_WARN_IF(!thread)NS_warn_if_impl(!thread, "!thread", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1120)) { |
| 1121 | return NS_ERROR_ILLEGAL_DURING_SHUTDOWN; |
| 1122 | } |
| 1123 | |
| 1124 | rv = NS_AsyncCopy(stream, pipeOut, thread, NS_ASYNCCOPY_VIA_WRITESEGMENTS); |
| 1125 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1125)) { |
| 1126 | return rv; |
| 1127 | } |
| 1128 | |
| 1129 | asyncStream = pipeIn; |
| 1130 | } |
| 1131 | |
| 1132 | MOZ_ASSERT(asyncStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(asyncStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(asyncStream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("asyncStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1132); AnnotateMozCrashReason("MOZ_ASSERT" "(" "asyncStream" ")"); do { *((volatile int*)__null) = 1132; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1133 | mAsyncInnerStream = asyncStream; |
| 1134 | mInnerStream = nullptr; |
| 1135 | |
| 1136 | return NS_OK; |
| 1137 | } |
| 1138 | |
| 1139 | // nsIInputStreamLength |
| 1140 | |
| 1141 | NS_IMETHODIMPnsresult |
| 1142 | RemoteLazyInputStream::Length(int64_t* aLength) { |
| 1143 | MutexAutoLock lock(mMutex); |
| 1144 | |
| 1145 | if (mState == eClosed) { |
| 1146 | return NS_BASE_STREAM_CLOSED; |
| 1147 | } |
| 1148 | |
| 1149 | if (!mActor) { |
| 1150 | return NS_ERROR_NOT_AVAILABLE; |
| 1151 | } |
| 1152 | |
| 1153 | return NS_BASE_STREAM_WOULD_BLOCK; |
| 1154 | } |
| 1155 | |
| 1156 | namespace { |
| 1157 | |
| 1158 | class InputStreamLengthCallbackRunnable final : public DiscardableRunnable { |
| 1159 | public: |
| 1160 | static void Execute(nsIInputStreamLengthCallback* aCallback, |
| 1161 | nsIEventTarget* aEventTarget, |
| 1162 | RemoteLazyInputStream* aStream, int64_t aLength) { |
| 1163 | MOZ_ASSERT(aCallback)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aCallback)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aCallback))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aCallback", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1163); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aCallback" ")" ); do { *((volatile int*)__null) = 1163; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1164 | MOZ_ASSERT(aEventTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEventTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEventTarget))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEventTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1164); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEventTarget" ")"); do { *((volatile int*)__null) = 1164; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1165 | |
| 1166 | RefPtr<InputStreamLengthCallbackRunnable> runnable = |
| 1167 | new InputStreamLengthCallbackRunnable(aCallback, aStream, aLength); |
| 1168 | |
| 1169 | nsCOMPtr<nsIEventTarget> target = aEventTarget; |
| 1170 | target->Dispatch(runnable, NS_DISPATCH_NORMALnsIEventTarget::DISPATCH_NORMAL); |
| 1171 | } |
| 1172 | |
| 1173 | NS_IMETHODvirtual nsresult |
| 1174 | Run() override { |
| 1175 | mCallback->OnInputStreamLengthReady(mStream, mLength); |
| 1176 | mCallback = nullptr; |
| 1177 | mStream = nullptr; |
| 1178 | return NS_OK; |
| 1179 | } |
| 1180 | |
| 1181 | private: |
| 1182 | InputStreamLengthCallbackRunnable(nsIInputStreamLengthCallback* aCallback, |
| 1183 | RemoteLazyInputStream* aStream, |
| 1184 | int64_t aLength) |
| 1185 | : DiscardableRunnable("dom::InputStreamLengthCallbackRunnable"), |
| 1186 | mCallback(aCallback), |
| 1187 | mStream(aStream), |
| 1188 | mLength(aLength) { |
| 1189 | MOZ_ASSERT(mCallback)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mCallback)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mCallback))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mCallback", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1189); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mCallback" ")" ); do { *((volatile int*)__null) = 1189; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1190 | MOZ_ASSERT(mStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mStream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1190); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mStream" ")" ); do { *((volatile int*)__null) = 1190; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1191 | } |
| 1192 | |
| 1193 | nsCOMPtr<nsIInputStreamLengthCallback> mCallback; |
| 1194 | RefPtr<RemoteLazyInputStream> mStream; |
| 1195 | const int64_t mLength; |
| 1196 | }; |
| 1197 | |
| 1198 | } // namespace |
| 1199 | |
| 1200 | // nsIAsyncInputStreamLength |
| 1201 | |
| 1202 | NS_IMETHODIMPnsresult |
| 1203 | RemoteLazyInputStream::AsyncLengthWait(nsIInputStreamLengthCallback* aCallback, |
| 1204 | nsIEventTarget* aEventTarget) { |
| 1205 | // If we have the callback, we must have the event target. |
| 1206 | if (NS_WARN_IF(!!aCallback != !!aEventTarget)NS_warn_if_impl(!!aCallback != !!aEventTarget, "!!aCallback != !!aEventTarget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1206)) { |
| 1207 | return NS_ERROR_FAILURE; |
| 1208 | } |
| 1209 | |
| 1210 | { |
| 1211 | MutexAutoLock lock(mMutex); |
| 1212 | |
| 1213 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncLengthWait(%p, %p) %s", aCallback, aEventTarget, Describe().get()); } } while (0) |
| 1214 | ("AsyncLengthWait(%p, %p) %s", aCallback, aEventTarget,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncLengthWait(%p, %p) %s", aCallback, aEventTarget, Describe().get()); } } while (0) |
| 1215 | Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncLengthWait(%p, %p) %s", aCallback, aEventTarget, Describe().get()); } } while (0); |
| 1216 | |
| 1217 | if (mActor) { |
| 1218 | if (aCallback) { |
| 1219 | auto* thread = RemoteLazyInputStreamThread::GetOrCreate(); |
| 1220 | if (NS_WARN_IF(!thread)NS_warn_if_impl(!thread, "!thread", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1220)) { |
| 1221 | return NS_ERROR_ILLEGAL_DURING_SHUTDOWN; |
| 1222 | } |
| 1223 | thread->Dispatch(NS_NewRunnableFunction( |
| 1224 | "RemoteLazyInputStream::AsyncLengthWait", |
| 1225 | [self = RefPtr{this}, actor = mActor, |
| 1226 | callback = nsCOMPtr{aCallback}, |
| 1227 | eventTarget = nsCOMPtr{aEventTarget}] { |
| 1228 | actor->SendLengthNeeded( |
| 1229 | [self, callback, eventTarget](int64_t aLength) { |
| 1230 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncLengthWait resolve %" "l" "d", aLength ); } } while (0) |
| 1231 | ("AsyncLengthWait resolve %" PRId64, aLength))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncLengthWait resolve %" "l" "d", aLength ); } } while (0); |
| 1232 | int64_t length = -1; |
| 1233 | if (aLength > 0) { |
| 1234 | uint64_t sourceLength = |
| 1235 | aLength - std::min<uint64_t>(aLength, self->mStart); |
| 1236 | length = int64_t( |
| 1237 | std::min<uint64_t>(sourceLength, self->mLength)); |
| 1238 | } |
| 1239 | InputStreamLengthCallbackRunnable::Execute( |
| 1240 | callback, eventTarget, self, length); |
| 1241 | }, |
| 1242 | [self, callback, |
| 1243 | eventTarget](mozilla::ipc::ResponseRejectReason) { |
| 1244 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Warning,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "AsyncLengthWait reject"); } } while (0) |
| 1245 | ("AsyncLengthWait reject"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "AsyncLengthWait reject"); } } while (0); |
| 1246 | InputStreamLengthCallbackRunnable::Execute( |
| 1247 | callback, eventTarget, self, -1); |
| 1248 | }); |
| 1249 | })); |
| 1250 | } |
| 1251 | |
| 1252 | return NS_OK; |
| 1253 | } |
| 1254 | } |
| 1255 | |
| 1256 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncLengthWait immediate"); } } while ( 0) |
| 1257 | ("AsyncLengthWait immediate"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "AsyncLengthWait immediate"); } } while ( 0); |
| 1258 | |
| 1259 | // If execution has reached here, it means the stream is either closed or |
| 1260 | // consumed, and therefore the callback can be executed immediately |
| 1261 | InputStreamLengthCallbackRunnable::Execute(aCallback, aEventTarget, this, -1); |
| 1262 | return NS_OK; |
| 1263 | } |
| 1264 | |
| 1265 | void RemoteLazyInputStream::IPCWrite(IPC::MessageWriter* aWriter) { |
| 1266 | // If we have an actor still, serialize efficiently by cloning our actor to |
| 1267 | // maintain a reference to the parent side. |
| 1268 | RefPtr<RemoteLazyInputStreamChild> actor; |
| 1269 | |
| 1270 | nsCOMPtr<nsIInputStream> innerStream; |
| 1271 | |
| 1272 | RefPtr<nsIInputStreamCallback> inputStreamCallback; |
| 1273 | nsCOMPtr<nsIEventTarget> inputStreamCallbackEventTarget; |
| 1274 | |
| 1275 | { |
| 1276 | MutexAutoLock lock(mMutex); |
| 1277 | |
| 1278 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Serialize %s", Describe().get()); } } while (0) |
| 1279 | ("Serialize %s", Describe().get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Serialize %s", Describe().get()); } } while (0); |
| 1280 | |
| 1281 | actor = mActor.forget(); |
| 1282 | |
| 1283 | if (mAsyncInnerStream) { |
| 1284 | MOZ_ASSERT(!mInnerStream)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mInnerStream)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mInnerStream))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mInnerStream", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1284); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mInnerStream" ")"); do { *((volatile int*)__null) = 1284; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1285 | innerStream = mAsyncInnerStream.forget(); |
| 1286 | } else { |
| 1287 | innerStream = mInnerStream.forget(); |
| 1288 | } |
| 1289 | |
| 1290 | // TODO(Bug 1737783): Notify to the mFileMetadataCallback that this |
| 1291 | // lazy input stream has been closed. |
| 1292 | mFileMetadataCallback = nullptr; |
| 1293 | mFileMetadataCallbackEventTarget = nullptr; |
| 1294 | |
| 1295 | inputStreamCallback = mInputStreamCallback.forget(); |
| 1296 | inputStreamCallbackEventTarget = mInputStreamCallbackEventTarget.forget(); |
| 1297 | |
| 1298 | mState = eClosed; |
| 1299 | } |
| 1300 | |
| 1301 | if (inputStreamCallback) { |
| 1302 | InputStreamCallbackRunnable::Execute( |
| 1303 | inputStreamCallback.forget(), inputStreamCallbackEventTarget.forget(), |
| 1304 | this); |
| 1305 | } |
| 1306 | |
| 1307 | bool closed = !actor && !innerStream; |
| 1308 | IPC::WriteParam(aWriter, closed); |
| 1309 | if (closed) { |
| 1310 | return; |
| 1311 | } |
| 1312 | |
| 1313 | // If we still have a connection to our remote actor, create a clone endpoint |
| 1314 | // for it and tell it that the stream has been consumed. The clone of the |
| 1315 | // connection can be transferred to another process. |
| 1316 | if (actor) { |
| 1317 | MOZ_LOG(do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Serializing as actor: %s", nsIDToCString( actor->StreamID()).get()); } } while (0) |
| 1318 | gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Serializing as actor: %s", nsIDToCString( actor->StreamID()).get()); } } while (0) |
| 1319 | ("Serializing as actor: %s", nsIDToCString(actor->StreamID()).get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Serializing as actor: %s", nsIDToCString( actor->StreamID()).get()); } } while (0); |
| 1320 | // Create a clone of the actor, and then tell it that this stream is no |
| 1321 | // longer referencing it. |
| 1322 | mozilla::ipc::Endpoint<PRemoteLazyInputStreamParent> parentEp; |
| 1323 | mozilla::ipc::Endpoint<PRemoteLazyInputStreamChild> childEp; |
| 1324 | MOZ_ALWAYS_SUCCEEDS(do { if ((__builtin_expect(!!(((bool)(__builtin_expect(!!(!NS_FAILED_impl (PRemoteLazyInputStream::CreateEndpoints(&parentEp, & childEp))), 1)))), 1))) { } else { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(false)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("false" " (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1325); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")"); do { *((volatile int*)__null) = 1325; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 1325 | PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))do { if ((__builtin_expect(!!(((bool)(__builtin_expect(!!(!NS_FAILED_impl (PRemoteLazyInputStream::CreateEndpoints(&parentEp, & childEp))), 1)))), 1))) { } else { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(false)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("false" " (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1325); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")"); do { *((volatile int*)__null) = 1325; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 1326 | |
| 1327 | auto* thread = RemoteLazyInputStreamThread::GetOrCreate(); |
| 1328 | if (thread) { |
| 1329 | thread->Dispatch(NS_NewRunnableFunction( |
| 1330 | "RemoteLazyInputStreamChild::SendClone", |
| 1331 | [actor, parentEp = std::move(parentEp)]() mutable { |
| 1332 | bool ok = actor->SendClone(std::move(parentEp)); |
| 1333 | MOZ_LOG(do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "SendClone for %s: %s", nsIDToCString(actor ->StreamID()).get(), ok ? "OK" : "ERR"); } } while (0) |
| 1334 | gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "SendClone for %s: %s", nsIDToCString(actor ->StreamID()).get(), ok ? "OK" : "ERR"); } } while (0) |
| 1335 | ("SendClone for %s: %s", nsIDToCString(actor->StreamID()).get(),do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "SendClone for %s: %s", nsIDToCString(actor ->StreamID()).get(), ok ? "OK" : "ERR"); } } while (0) |
| 1336 | ok ? "OK" : "ERR"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "SendClone for %s: %s", nsIDToCString(actor ->StreamID()).get(), ok ? "OK" : "ERR"); } } while (0); |
| 1337 | })); |
| 1338 | |
| 1339 | } // else we are shutting down xpcom threads. |
| 1340 | |
| 1341 | // NOTE: Call `StreamConsumed` after dispatching the `SendClone` runnable, |
| 1342 | // as this method may dispatch a runnable to `RemoteLazyInputStreamThread` |
| 1343 | // to call `SendGoodbye`, which needs to happen after `SendClone`. |
| 1344 | actor->StreamConsumed(); |
| 1345 | |
| 1346 | IPC::WriteParam(aWriter, actor->StreamID()); |
| 1347 | IPC::WriteParam(aWriter, mStart); |
| 1348 | IPC::WriteParam(aWriter, mLength); |
| 1349 | IPC::WriteParam(aWriter, std::move(childEp)); |
| 1350 | |
| 1351 | if (innerStream) { |
| 1352 | innerStream->Close(); |
| 1353 | } |
| 1354 | return; |
| 1355 | } |
| 1356 | |
| 1357 | // If we have a stream and are in the parent process, create a new actor pair |
| 1358 | // and transfer ownership of the stream into storage. |
| 1359 | auto streamStorage = RemoteLazyInputStreamStorage::Get(); |
| 1360 | if (streamStorage.isOk()) { |
| 1361 | MOZ_ASSERT(XRE_IsParentProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(XRE_IsParentProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(XRE_IsParentProcess()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("XRE_IsParentProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1361); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 1361; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1362 | nsID id = nsID::GenerateUUID(); |
| 1363 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Serializing as new stream: %s", nsIDToCString (id).get()); } } while (0) |
| 1364 | ("Serializing as new stream: %s", nsIDToCString(id).get()))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Serializing as new stream: %s", nsIDToCString (id).get()); } } while (0); |
| 1365 | |
| 1366 | streamStorage.inspect()->AddStream(innerStream, id); |
| 1367 | |
| 1368 | mozilla::ipc::Endpoint<PRemoteLazyInputStreamParent> parentEp; |
| 1369 | mozilla::ipc::Endpoint<PRemoteLazyInputStreamChild> childEp; |
| 1370 | MOZ_ALWAYS_SUCCEEDS(do { if ((__builtin_expect(!!(((bool)(__builtin_expect(!!(!NS_FAILED_impl (PRemoteLazyInputStream::CreateEndpoints(&parentEp, & childEp))), 1)))), 1))) { } else { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(false)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("false" " (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1371); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")"); do { *((volatile int*)__null) = 1371; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 1371 | PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))do { if ((__builtin_expect(!!(((bool)(__builtin_expect(!!(!NS_FAILED_impl (PRemoteLazyInputStream::CreateEndpoints(&parentEp, & childEp))), 1)))), 1))) { } else { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(false)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(false))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("false" " (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1371); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "false" ") (" "NS_SUCCEEDED(PRemoteLazyInputStream::CreateEndpoints(&parentEp, &childEp))" ")"); do { *((volatile int*)__null) = 1371; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 1372 | |
| 1373 | // Bind the actor on our background thread. |
| 1374 | streamStorage.inspect()->TaskQueue()->Dispatch(NS_NewRunnableFunction( |
| 1375 | "RemoteLazyInputStreamParent::Bind", |
| 1376 | [parentEp = std::move(parentEp), id]() mutable { |
| 1377 | auto stream = MakeRefPtr<RemoteLazyInputStreamParent>(id); |
| 1378 | parentEp.Bind(stream); |
| 1379 | })); |
| 1380 | |
| 1381 | IPC::WriteParam(aWriter, id); |
| 1382 | IPC::WriteParam(aWriter, 0); |
| 1383 | IPC::WriteParam(aWriter, UINT64_MAX(18446744073709551615UL)); |
| 1384 | IPC::WriteParam(aWriter, std::move(childEp)); |
| 1385 | return; |
| 1386 | } |
| 1387 | |
| 1388 | MOZ_CRASH("Cannot serialize new RemoteLazyInputStream from this process")do { do { } while (false); MOZ_ReportCrash("" "Cannot serialize new RemoteLazyInputStream from this process" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1388); AnnotateMozCrashReason("MOZ_CRASH(" "Cannot serialize new RemoteLazyInputStream from this process" ")"); do { *((volatile int*)__null) = 1388; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 1389 | } |
| 1390 | |
| 1391 | already_AddRefed<RemoteLazyInputStream> RemoteLazyInputStream::IPCRead( |
| 1392 | IPC::MessageReader* aReader) { |
| 1393 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose, ("Deserialize"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Deserialize"); } } while (0); |
| 1394 | |
| 1395 | bool closed; |
| 1396 | if (NS_WARN_IF(!IPC::ReadParam(aReader, &closed))NS_warn_if_impl(!IPC::ReadParam(aReader, &closed), "!IPC::ReadParam(aReader, &closed)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1396)) { |
| 1397 | return nullptr; |
| 1398 | } |
| 1399 | if (closed) { |
| 1400 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Deserialize closed stream"); } } while ( 0) |
| 1401 | ("Deserialize closed stream"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Deserialize closed stream"); } } while ( 0); |
| 1402 | return do_AddRef(new RemoteLazyInputStream()); |
| 1403 | } |
| 1404 | |
| 1405 | nsID id{}; |
| 1406 | uint64_t start; |
| 1407 | uint64_t length; |
| 1408 | mozilla::ipc::Endpoint<PRemoteLazyInputStreamChild> endpoint; |
| 1409 | if (NS_WARN_IF(!IPC::ReadParam(aReader, &id))NS_warn_if_impl(!IPC::ReadParam(aReader, &id), "!IPC::ReadParam(aReader, &id)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1409) || |
| 1410 | NS_WARN_IF(!IPC::ReadParam(aReader, &start))NS_warn_if_impl(!IPC::ReadParam(aReader, &start), "!IPC::ReadParam(aReader, &start)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1410) || |
| 1411 | NS_WARN_IF(!IPC::ReadParam(aReader, &length))NS_warn_if_impl(!IPC::ReadParam(aReader, &length), "!IPC::ReadParam(aReader, &length)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1411) || |
| 1412 | NS_WARN_IF(!IPC::ReadParam(aReader, &endpoint))NS_warn_if_impl(!IPC::ReadParam(aReader, &endpoint), "!IPC::ReadParam(aReader, &endpoint)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/file/ipc/RemoteLazyInputStream.cpp" , 1412)) { |
| 1413 | return nullptr; |
| 1414 | } |
| 1415 | |
| 1416 | if (!endpoint.IsValid()) { |
| 1417 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Warning,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "Deserialize failed due to invalid endpoint!" ); } } while (0) |
| 1418 | ("Deserialize failed due to invalid endpoint!"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "Deserialize failed due to invalid endpoint!" ); } } while (0); |
| 1419 | return do_AddRef(new RemoteLazyInputStream()); |
| 1420 | } |
| 1421 | |
| 1422 | RefPtr<RemoteLazyInputStreamChild> actor = |
| 1423 | BindChildActor(id, std::move(endpoint)); |
| 1424 | |
| 1425 | if (!actor) { |
| 1426 | MOZ_LOG(gRemoteLazyStreamLog, LogLevel::Warning,do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "Deserialize failed as we are probably late in shutdown!" ); } } while (0) |
| 1427 | ("Deserialize failed as we are probably late in shutdown!"))do { const ::mozilla::LogModule* moz_real_module = gRemoteLazyStreamLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "Deserialize failed as we are probably late in shutdown!" ); } } while (0); |
| 1428 | return do_AddRef(new RemoteLazyInputStream()); |
| 1429 | } |
| 1430 | |
| 1431 | return do_AddRef(new RemoteLazyInputStream(actor, start, length)); |
| 1432 | } |
| 1433 | |
| 1434 | } // namespace mozilla |
| 1435 | |
| 1436 | void IPC::ParamTraits<mozilla::RemoteLazyInputStream*>::Write( |
| 1437 | IPC::MessageWriter* aWriter, mozilla::RemoteLazyInputStream* aParam) { |
| 1438 | bool nonNull = !!aParam; |
| 1439 | IPC::WriteParam(aWriter, nonNull); |
| 1440 | if (aParam) { |
| 1441 | aParam->IPCWrite(aWriter); |
| 1442 | } |
| 1443 | } |
| 1444 | |
| 1445 | bool IPC::ParamTraits<mozilla::RemoteLazyInputStream*>::Read( |
| 1446 | IPC::MessageReader* aReader, |
| 1447 | RefPtr<mozilla::RemoteLazyInputStream>* aResult) { |
| 1448 | bool nonNull = false; |
| 1449 | if (!IPC::ReadParam(aReader, &nonNull)) { |
| 1450 | return false; |
| 1451 | } |
| 1452 | if (!nonNull) { |
| 1453 | *aResult = nullptr; |
| 1454 | return true; |
| 1455 | } |
| 1456 | *aResult = mozilla::RemoteLazyInputStream::IPCRead(aReader); |
| 1457 | return *aResult; |
| 1458 | } |