1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/tests/many_cv.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,118 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "prinit.h"
1.10 +#include "prprf.h"
1.11 +#include "prthread.h"
1.12 +#include "prcvar.h"
1.13 +#include "prlock.h"
1.14 +#include "prlog.h"
1.15 +#include "prmem.h"
1.16 +
1.17 +#include "primpl.h"
1.18 +
1.19 +#include "plgetopt.h"
1.20 +
1.21 +#include <stdlib.h>
1.22 +
1.23 +static PRInt32 RandomNum(void)
1.24 +{
1.25 + PRInt32 ran = rand() >> 16;
1.26 + return ran;
1.27 +} /* RandomNum */
1.28 +
1.29 +static void Help(void)
1.30 +{
1.31 + PRFileDesc *err = PR_GetSpecialFD(PR_StandardError);
1.32 + PR_fprintf(err, "many_cv usage: [-c n] [-l n] [-h]\n");
1.33 + PR_fprintf(err, "\t-c n Number of conditions per lock (default: 10)\n");
1.34 + PR_fprintf(err, "\t-l n Number of times to loop the test (default: 1)\n");
1.35 + PR_fprintf(err, "\t-h This message and nothing else\n");
1.36 +} /* Help */
1.37 +
1.38 +static PRIntn PR_CALLBACK RealMain( PRIntn argc, char **argv )
1.39 +{
1.40 + PLOptStatus os;
1.41 + PRIntn index, nl;
1.42 + PRLock *ml = NULL;
1.43 + PRCondVar **cv = NULL;
1.44 + PRBool stats = PR_FALSE;
1.45 + PRIntn nc, loops = 1, cvs = 10;
1.46 + PRFileDesc *err = PR_GetSpecialFD(PR_StandardError);
1.47 + PLOptState *opt = PL_CreateOptState(argc, argv, "hsc:l:");
1.48 +
1.49 + while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
1.50 + {
1.51 + if (PL_OPT_BAD == os) continue;
1.52 + switch (opt->option)
1.53 + {
1.54 + case 's': /* number of CVs to association with lock */
1.55 + stats = PR_TRUE;
1.56 + break;
1.57 + case 'c': /* number of CVs to association with lock */
1.58 + cvs = atoi(opt->value);
1.59 + break;
1.60 + case 'l': /* number of times to run the tests */
1.61 + loops = atoi(opt->value);
1.62 + break;
1.63 + case 'h': /* user wants some guidance */
1.64 + default:
1.65 + Help(); /* so give him an earful */
1.66 + return 2; /* but not a lot else */
1.67 + }
1.68 + }
1.69 + PL_DestroyOptState(opt);
1.70 +
1.71 + PR_fprintf(err, "Settings\n");
1.72 + PR_fprintf(err, "\tConditions / lock: %d\n", cvs);
1.73 + PR_fprintf(err, "\tLoops to run test: %d\n", loops);
1.74 +
1.75 + ml = PR_NewLock();
1.76 + PR_ASSERT(NULL != ml);
1.77 +
1.78 + cv = (PRCondVar**)PR_CALLOC(sizeof(PRCondVar*) * cvs);
1.79 + PR_ASSERT(NULL != cv);
1.80 +
1.81 + for (index = 0; index < cvs; ++index)
1.82 + {
1.83 + cv[index] = PR_NewCondVar(ml);
1.84 + PR_ASSERT(NULL != cv[index]);
1.85 + }
1.86 +
1.87 + for (index = 0; index < loops; ++index)
1.88 + {
1.89 + PR_Lock(ml);
1.90 + for (nl = 0; nl < cvs; ++nl)
1.91 + {
1.92 + PRInt32 ran = RandomNum() % 8;
1.93 + if (0 == ran) PR_NotifyAllCondVar(cv[nl]);
1.94 + else for (nc = 0; nc < ran; ++nc)
1.95 + PR_NotifyCondVar(cv[nl]);
1.96 + }
1.97 + PR_Unlock(ml);
1.98 + }
1.99 +
1.100 + for (index = 0; index < cvs; ++index)
1.101 + PR_DestroyCondVar(cv[index]);
1.102 +
1.103 + PR_DELETE(cv);
1.104 +
1.105 + PR_DestroyLock(ml);
1.106 +
1.107 + printf("PASS\n");
1.108 +
1.109 + PT_FPrintStats(err, "\nPThread Statistics\n");
1.110 + return 0;
1.111 +}
1.112 +
1.113 +
1.114 +int main(int argc, char **argv)
1.115 +{
1.116 + PRIntn rv;
1.117 +
1.118 + PR_STDIO_INIT();
1.119 + rv = PR_Initialize(RealMain, argc, argv, 0);
1.120 + return rv;
1.121 +} /* main */
