diff options
Diffstat (limited to 'nsprpub/pr/tests/many_cv.c')
-rw-r--r-- | nsprpub/pr/tests/many_cv.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/many_cv.c b/nsprpub/pr/tests/many_cv.c new file mode 100644 index 000000000..8bddd7865 --- /dev/null +++ b/nsprpub/pr/tests/many_cv.c @@ -0,0 +1,118 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "prinit.h" +#include "prprf.h" +#include "prthread.h" +#include "prcvar.h" +#include "prlock.h" +#include "prlog.h" +#include "prmem.h" + +#include "primpl.h" + +#include "plgetopt.h" + +#include <stdlib.h> + +static PRInt32 RandomNum(void) +{ + PRInt32 ran = rand() >> 16; + return ran; +} /* RandomNum */ + +static void Help(void) +{ + PRFileDesc *err = PR_GetSpecialFD(PR_StandardError); + PR_fprintf(err, "many_cv usage: [-c n] [-l n] [-h]\n"); + PR_fprintf(err, "\t-c n Number of conditions per lock (default: 10)\n"); + PR_fprintf(err, "\t-l n Number of times to loop the test (default: 1)\n"); + PR_fprintf(err, "\t-h This message and nothing else\n"); +} /* Help */ + +static PRIntn PR_CALLBACK RealMain( PRIntn argc, char **argv ) +{ + PLOptStatus os; + PRIntn index, nl; + PRLock *ml = NULL; + PRCondVar **cv = NULL; + PRBool stats = PR_FALSE; + PRIntn nc, loops = 1, cvs = 10; + PRFileDesc *err = PR_GetSpecialFD(PR_StandardError); + PLOptState *opt = PL_CreateOptState(argc, argv, "hsc:l:"); + + while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) + { + if (PL_OPT_BAD == os) continue; + switch (opt->option) + { + case 's': /* number of CVs to association with lock */ + stats = PR_TRUE; + break; + case 'c': /* number of CVs to association with lock */ + cvs = atoi(opt->value); + break; + case 'l': /* number of times to run the tests */ + loops = atoi(opt->value); + break; + case 'h': /* user wants some guidance */ + default: + Help(); /* so give him an earful */ + return 2; /* but not a lot else */ + } + } + PL_DestroyOptState(opt); + + PR_fprintf(err, "Settings\n"); + PR_fprintf(err, "\tConditions / lock: %d\n", cvs); + PR_fprintf(err, "\tLoops to run test: %d\n", loops); + + ml = PR_NewLock(); + PR_ASSERT(NULL != ml); + + cv = (PRCondVar**)PR_CALLOC(sizeof(PRCondVar*) * cvs); + PR_ASSERT(NULL != cv); + + for (index = 0; index < cvs; ++index) + { + cv[index] = PR_NewCondVar(ml); + PR_ASSERT(NULL != cv[index]); + } + + for (index = 0; index < loops; ++index) + { + PR_Lock(ml); + for (nl = 0; nl < cvs; ++nl) + { + PRInt32 ran = RandomNum() % 8; + if (0 == ran) PR_NotifyAllCondVar(cv[nl]); + else for (nc = 0; nc < ran; ++nc) + PR_NotifyCondVar(cv[nl]); + } + PR_Unlock(ml); + } + + for (index = 0; index < cvs; ++index) + PR_DestroyCondVar(cv[index]); + + PR_DELETE(cv); + + PR_DestroyLock(ml); + + printf("PASS\n"); + + PT_FPrintStats(err, "\nPThread Statistics\n"); + return 0; +} + + +int main(int argc, char **argv) +{ + PRIntn rv; + + PR_STDIO_INIT(); + rv = PR_Initialize(RealMain, argc, argv, 0); + return rv; +} /* main */ |