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/* -*- 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
#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 */