| File: | pr/Linux4.19_x86_64_gcc_glibc_PTH_64_DBG.OBJ/pr/tests/../../../pr/tests/many_cv.c |
| Warning: | line 54, column 17 Value stored to 'stats' is never read |
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| 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| 5 | |
| 6 | #include "prinit.h" |
| 7 | #include "prprf.h" |
| 8 | #include "prthread.h" |
| 9 | #include "prcvar.h" |
| 10 | #include "prlock.h" |
| 11 | #include "prlog.h" |
| 12 | #include "prmem.h" |
| 13 | |
| 14 | #include "primpl.h" |
| 15 | |
| 16 | #include "plgetopt.h" |
| 17 | |
| 18 | #include <stdlib.h> |
| 19 | |
| 20 | static PRInt32 RandomNum(void) |
| 21 | { |
| 22 | PRInt32 ran = rand() >> 16; |
| 23 | return ran; |
| 24 | } /* RandomNum */ |
| 25 | |
| 26 | static void Help(void) |
| 27 | { |
| 28 | PRFileDesc *err = PR_GetSpecialFD(PR_StandardError); |
| 29 | PR_fprintf(err, "many_cv usage: [-c n] [-l n] [-h]\n"); |
| 30 | PR_fprintf(err, "\t-c n Number of conditions per lock (default: 10)\n"); |
| 31 | PR_fprintf(err, "\t-l n Number of times to loop the test (default: 1)\n"); |
| 32 | PR_fprintf(err, "\t-h This message and nothing else\n"); |
| 33 | } /* Help */ |
| 34 | |
| 35 | static PRIntn PR_CALLBACK RealMain( PRIntn argc, char **argv ) |
| 36 | { |
| 37 | PLOptStatus os; |
| 38 | PRIntn index, nl; |
| 39 | PRLock *ml = NULL((void*)0); |
| 40 | PRCondVar **cv = NULL((void*)0); |
| 41 | PRBool stats = PR_FALSE0; |
| 42 | PRIntn nc, loops = 1, cvs = 10; |
| 43 | PRFileDesc *err = PR_GetSpecialFD(PR_StandardError); |
| 44 | PLOptState *opt = PL_CreateOptState(argc, argv, "hsc:l:"); |
| 45 | |
| 46 | while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) |
| 47 | { |
| 48 | if (PL_OPT_BAD == os) { |
| 49 | continue; |
| 50 | } |
| 51 | switch (opt->option) |
| 52 | { |
| 53 | case 's': /* number of CVs to association with lock */ |
| 54 | stats = PR_TRUE1; |
Value stored to 'stats' is never read | |
| 55 | break; |
| 56 | case 'c': /* number of CVs to association with lock */ |
| 57 | cvs = atoi(opt->value); |
| 58 | break; |
| 59 | case 'l': /* number of times to run the tests */ |
| 60 | loops = atoi(opt->value); |
| 61 | break; |
| 62 | case 'h': /* user wants some guidance */ |
| 63 | default: |
| 64 | Help(); /* so give him an earful */ |
| 65 | return 2; /* but not a lot else */ |
| 66 | } |
| 67 | } |
| 68 | PL_DestroyOptState(opt); |
| 69 | |
| 70 | PR_fprintf(err, "Settings\n"); |
| 71 | PR_fprintf(err, "\tConditions / lock: %d\n", cvs); |
| 72 | PR_fprintf(err, "\tLoops to run test: %d\n", loops); |
| 73 | |
| 74 | ml = PR_NewLock(); |
| 75 | PR_ASSERT(NULL != ml)((((void*)0) != ml)?((void)0):PR_Assert("NULL != ml","../../../pr/tests/many_cv.c" ,75)); |
| 76 | |
| 77 | cv = (PRCondVar**)PR_CALLOC(sizeof(PRCondVar*) * cvs)(PR_Calloc(1, (sizeof(PRCondVar*) * cvs))); |
| 78 | PR_ASSERT(NULL != cv)((((void*)0) != cv)?((void)0):PR_Assert("NULL != cv","../../../pr/tests/many_cv.c" ,78)); |
| 79 | |
| 80 | for (index = 0; index < cvs; ++index) |
| 81 | { |
| 82 | cv[index] = PR_NewCondVar(ml); |
| 83 | PR_ASSERT(NULL != cv[index])((((void*)0) != cv[index])?((void)0):PR_Assert("NULL != cv[index]" ,"../../../pr/tests/many_cv.c",83)); |
| 84 | } |
| 85 | |
| 86 | for (index = 0; index < loops; ++index) |
| 87 | { |
| 88 | PR_Lock(ml); |
| 89 | for (nl = 0; nl < cvs; ++nl) |
| 90 | { |
| 91 | PRInt32 ran = RandomNum() % 8; |
| 92 | if (0 == ran) { |
| 93 | PR_NotifyAllCondVar(cv[nl]); |
| 94 | } |
| 95 | else for (nc = 0; nc < ran; ++nc) { |
| 96 | PR_NotifyCondVar(cv[nl]); |
| 97 | } |
| 98 | } |
| 99 | PR_Unlock(ml); |
| 100 | } |
| 101 | |
| 102 | for (index = 0; index < cvs; ++index) { |
| 103 | PR_DestroyCondVar(cv[index]); |
| 104 | } |
| 105 | |
| 106 | PR_DELETE(cv){ PR_Free(cv); (cv) = ((void*)0); }; |
| 107 | |
| 108 | PR_DestroyLock(ml); |
| 109 | |
| 110 | printf("PASS\n"); |
| 111 | |
| 112 | PT_FPrintStats(err, "\nPThread Statistics\n"); |
| 113 | return 0; |
| 114 | } |
| 115 | |
| 116 | |
| 117 | int main(int argc, char **argv) |
| 118 | { |
| 119 | PRIntn rv; |
| 120 | |
| 121 | PR_STDIO_INIT(); |
| 122 | rv = PR_Initialize(RealMain, argc, argv, 0); |
| 123 | return rv; |
| 124 | } /* main */ |