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Diffstat (limited to 'nsprpub/pr/tests/concur.c')
| -rw-r--r-- | nsprpub/pr/tests/concur.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/concur.c b/nsprpub/pr/tests/concur.c new file mode 100644 index 000000000..108f90668 --- /dev/null +++ b/nsprpub/pr/tests/concur.c @@ -0,0 +1,157 @@ +/* -*- 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/. */ + +/* +** File: concur.c +** Description: test of adding and removing concurrency options +*/ + +#include "prcvar.h" +#include "prinit.h" +#include "prinrval.h" +#include "prlock.h" +#include "prprf.h" +#include "prmem.h" +#include "prlog.h" + +#include "plgetopt.h" + +#include "private/pprio.h" + +#include <stdlib.h> + +#define DEFAULT_RANGE 10 +#define DEFAULT_LOOPS 100 + +static PRThreadScope thread_scope = PR_LOCAL_THREAD; + +typedef struct Context +{ + PRLock *ml; + PRCondVar *cv; + PRIntn want, have; +} Context; + + +/* +** Make the instance of 'context' static (not on the stack) +** for Win16 threads +*/ +static Context context = {NULL, NULL, 0, 0}; + +static void PR_CALLBACK Dull(void *arg) +{ + Context *context = (Context*)arg; + PR_Lock(context->ml); + context->have += 1; + while (context->want >= context->have) + PR_WaitCondVar(context->cv, PR_INTERVAL_NO_TIMEOUT); + context->have -= 1; + PR_Unlock(context->ml); +} /* Dull */ + +PRIntn PR_CALLBACK Concur(PRIntn argc, char **argv) +{ + PRUintn cpus; + PLOptStatus os; + PRThread **threads; + PRBool debug = PR_FALSE; + PRUintn range = DEFAULT_RANGE; + PRStatus rc; + PRUintn cnt; + PRUintn loops = DEFAULT_LOOPS; + PRIntervalTime hundredMills = PR_MillisecondsToInterval(100); + PLOptState *opt = PL_CreateOptState(argc, argv, "Gdl:r:"); + while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) + { + if (PL_OPT_BAD == os) continue; + switch (opt->option) + { + case 'G': /* GLOBAL threads */ + thread_scope = PR_GLOBAL_THREAD; + break; + case 'd': /* debug mode */ + debug = PR_TRUE; + break; + case 'r': /* range limit */ + range = atoi(opt->value); + break; + case 'l': /* loop counter */ + loops = atoi(opt->value); + break; + default: + break; + } + } + PL_DestroyOptState(opt); + + if (0 == range) range = DEFAULT_RANGE; + if (0 == loops) loops = DEFAULT_LOOPS; + + context.ml = PR_NewLock(); + context.cv = PR_NewCondVar(context.ml); + + if (debug) + PR_fprintf( + PR_STDERR, "Testing with %d CPUs and %d interations\n", range, loops); + + threads = (PRThread**) PR_CALLOC(sizeof(PRThread*) * range); + while (--loops > 0) + { + for (cpus = 1; cpus <= range; ++cpus) + { + PR_SetConcurrency(cpus); + context.want = cpus; + + threads[cpus - 1] = PR_CreateThread( + PR_USER_THREAD, Dull, &context, PR_PRIORITY_NORMAL, + thread_scope, PR_JOINABLE_THREAD, 0); + } + + PR_Sleep(hundredMills); + + for (cpus = range; cpus > 0; cpus--) + { + PR_SetConcurrency(cpus); + context.want = cpus - 1; + + PR_Lock(context.ml); + PR_NotifyCondVar(context.cv); + PR_Unlock(context.ml); + } + for(cnt = 0; cnt < range; cnt++) { + rc = PR_JoinThread(threads[cnt]); + PR_ASSERT(rc == PR_SUCCESS); + } + } + + + if (debug) + PR_fprintf( + PR_STDERR, "Waiting for %d thread(s) to exit\n", context.have); + + while (context.have > 0) PR_Sleep(hundredMills); + + if (debug) + PR_fprintf( + PR_STDERR, "Finished [want: %d, have: %d]\n", + context.want, context.have); + + PR_DestroyLock(context.ml); + PR_DestroyCondVar(context.cv); + PR_DELETE(threads); + + PR_fprintf(PR_STDERR, "PASSED\n"); + + return 0; +} /* Concur */ + +int main(int argc, char **argv) +{ + PR_STDIO_INIT(); + return PR_Initialize(Concur, argc, argv, 0); +} /* main */ + +/* concur.c */ |