mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-07 04:05:49 +00:00
158 lines
3.7 KiB
C
158 lines
3.7 KiB
C
/* -*- 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 */
|