mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-10 18:00:15 +01:00
294 lines
9.3 KiB
C
294 lines
9.3 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is the Netscape Portable Runtime (NSPR).
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998-2000
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/*
|
|
* A test for the pollable events.
|
|
*
|
|
* A number of threads are in a ring configuration, each waiting on
|
|
* a pollable event that is set by its upstream neighbor.
|
|
*/
|
|
|
|
#include "prinit.h"
|
|
#include "prio.h"
|
|
#include "prthread.h"
|
|
#include "prerror.h"
|
|
#include "prmem.h"
|
|
#include "prlog.h"
|
|
#include "prprf.h"
|
|
|
|
#include "plgetopt.h"
|
|
|
|
#include <stdlib.h>
|
|
|
|
#define DEFAULT_THREADS 10
|
|
#define DEFAULT_LOOPS 100
|
|
|
|
PRIntn numThreads = DEFAULT_THREADS;
|
|
PRIntn numIterations = DEFAULT_LOOPS;
|
|
PRIntervalTime dally = PR_INTERVAL_NO_WAIT;
|
|
PRFileDesc *debug_out = NULL;
|
|
PRBool debug_mode = PR_FALSE;
|
|
PRBool verbosity = PR_FALSE;
|
|
|
|
typedef struct ThreadData {
|
|
PRFileDesc *event;
|
|
int index;
|
|
struct ThreadData *next;
|
|
} ThreadData;
|
|
|
|
void ThreadRoutine(void *arg)
|
|
{
|
|
ThreadData *data = (ThreadData *) arg;
|
|
PRIntn i;
|
|
PRPollDesc pd;
|
|
PRInt32 rv;
|
|
|
|
pd.fd = data->event;
|
|
pd.in_flags = PR_POLL_READ;
|
|
|
|
for (i = 0; i < numIterations; i++) {
|
|
rv = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
|
|
if (rv == -1) {
|
|
PR_fprintf(PR_STDERR, "PR_Poll failed\n");
|
|
exit(1);
|
|
}
|
|
if (verbosity) {
|
|
PR_fprintf(debug_out, "thread %d awakened\n", data->index);
|
|
}
|
|
PR_ASSERT(rv != 0);
|
|
PR_ASSERT(pd.out_flags & PR_POLL_READ);
|
|
if (PR_WaitForPollableEvent(data->event) == PR_FAILURE) {
|
|
PR_fprintf(PR_STDERR, "consume event failed\n");
|
|
exit(1);
|
|
}
|
|
if (dally != PR_INTERVAL_NO_WAIT) {
|
|
PR_Sleep(dally);
|
|
}
|
|
if (verbosity) {
|
|
PR_fprintf(debug_out, "thread %d posting event\n", data->index);
|
|
}
|
|
if (PR_SetPollableEvent(data->next->event) == PR_FAILURE) {
|
|
PR_fprintf(PR_STDERR, "post event failed\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void Help(void)
|
|
{
|
|
debug_out = PR_STDOUT;
|
|
|
|
PR_fprintf(
|
|
debug_out, "Usage: pollable [-c n] [-t n] [-d] [-v] [-G] [-C n] [-D n]\n");
|
|
PR_fprintf(
|
|
debug_out, "-c n\tloops at thread level (default: %d)\n", DEFAULT_LOOPS);
|
|
PR_fprintf(
|
|
debug_out, "-t n\tnumber of threads (default: %d)\n", DEFAULT_THREADS);
|
|
PR_fprintf(debug_out, "-d\tturn on debugging output (default: FALSE)\n");
|
|
PR_fprintf(debug_out, "-v\tturn on verbose output (default: FALSE)\n");
|
|
PR_fprintf(debug_out, "-G\tglobal threads only (default: FALSE)\n");
|
|
PR_fprintf(debug_out, "-C n\tconcurrency setting (default: 1)\n");
|
|
PR_fprintf(debug_out, "-D n\tdally setting (msecs) (default: 0)\n");
|
|
} /* Help */
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
ThreadData selfData;
|
|
ThreadData *data;
|
|
PRThread **thread;
|
|
void *block;
|
|
PRIntn i;
|
|
PRIntervalTime timeStart, timeEnd;
|
|
PRPollDesc pd;
|
|
PRInt32 rv;
|
|
PRThreadScope thread_scope = PR_LOCAL_THREAD;
|
|
PRBool help = PR_FALSE;
|
|
PRUintn concurrency = 1;
|
|
PRUintn average;
|
|
PLOptStatus os;
|
|
PLOptState *opt;
|
|
|
|
PR_STDIO_INIT();
|
|
|
|
opt = PL_CreateOptState(argc, argv, "hdvc:t:C:GD:");
|
|
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
|
|
if (PL_OPT_BAD == os) {
|
|
continue;
|
|
}
|
|
switch (opt->option) {
|
|
case 'v': /* verbose mode */
|
|
verbosity = PR_TRUE;
|
|
case 'd': /* debug mode */
|
|
debug_mode = PR_TRUE;
|
|
break;
|
|
case 'c': /* loop counter */
|
|
numIterations = atoi(opt->value);
|
|
break;
|
|
case 't': /* thread limit */
|
|
numThreads = atoi(opt->value);
|
|
break;
|
|
case 'C': /* Concurrency limit */
|
|
concurrency = atoi(opt->value);
|
|
break;
|
|
case 'G': /* global threads only */
|
|
thread_scope = PR_GLOBAL_THREAD;
|
|
break;
|
|
case 'D': /* dally */
|
|
dally = PR_MillisecondsToInterval(atoi(opt->value));
|
|
break;
|
|
case 'h': /* help message */
|
|
Help();
|
|
help = PR_TRUE;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
PL_DestroyOptState(opt);
|
|
|
|
if (help) {
|
|
return 1;
|
|
}
|
|
|
|
if (concurrency > 1) {
|
|
PR_SetConcurrency(concurrency);
|
|
}
|
|
|
|
if (PR_TRUE == debug_mode) {
|
|
debug_out = PR_STDOUT;
|
|
PR_fprintf(debug_out, "Test parameters\n");
|
|
PR_fprintf(debug_out, "\tThreads involved: %d\n", numThreads);
|
|
PR_fprintf(debug_out, "\tIteration limit: %d\n", numIterations);
|
|
PR_fprintf(debug_out, "\tConcurrency: %d\n", concurrency);
|
|
PR_fprintf(debug_out, "\tThread type: %s\n",
|
|
(PR_GLOBAL_THREAD == thread_scope) ? "GLOBAL" : "LOCAL");
|
|
}
|
|
|
|
/*
|
|
* Malloc a block of memory and divide it into data and thread.
|
|
*/
|
|
block = PR_MALLOC(numThreads * (sizeof(ThreadData) + sizeof(PRThread *)));
|
|
if (block == NULL) {
|
|
PR_fprintf(PR_STDERR, "cannot malloc, failed\n");
|
|
exit(1);
|
|
}
|
|
data = (ThreadData *) block;
|
|
thread = (PRThread **) &data[numThreads];
|
|
|
|
/* Pollable event */
|
|
selfData.event = PR_NewPollableEvent();
|
|
if (selfData.event == NULL) {
|
|
PR_fprintf(PR_STDERR, "cannot create event: (%ld, %ld)\n",
|
|
PR_GetError(), PR_GetOSError());
|
|
exit(1);
|
|
}
|
|
selfData.next = &data[0];
|
|
for (i = 0; i < numThreads; i++) {
|
|
data[i].event = PR_NewPollableEvent();
|
|
if (data[i].event == NULL) {
|
|
PR_fprintf(PR_STDERR, "cannot create event: (%ld, %ld)\n",
|
|
PR_GetError(), PR_GetOSError());
|
|
exit(1);
|
|
}
|
|
data[i].index = i;
|
|
if (i != numThreads - 1) {
|
|
data[i].next = &data[i + 1];
|
|
} else {
|
|
data[i].next = &selfData;
|
|
}
|
|
|
|
thread[i] = PR_CreateThread(PR_USER_THREAD,
|
|
ThreadRoutine, &data[i], PR_PRIORITY_NORMAL,
|
|
thread_scope, PR_JOINABLE_THREAD, 0);
|
|
if (thread[i] == NULL) {
|
|
PR_fprintf(PR_STDERR, "cannot create thread\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
timeStart = PR_IntervalNow();
|
|
pd.fd = selfData.event;
|
|
pd.in_flags = PR_POLL_READ;
|
|
for (i = 0; i < numIterations; i++) {
|
|
if (dally != PR_INTERVAL_NO_WAIT) {
|
|
PR_Sleep(dally);
|
|
}
|
|
if (verbosity) {
|
|
PR_fprintf(debug_out, "main thread posting event\n");
|
|
}
|
|
if (PR_SetPollableEvent(selfData.next->event) == PR_FAILURE) {
|
|
PR_fprintf(PR_STDERR, "set event failed\n");
|
|
exit(1);
|
|
}
|
|
rv = PR_Poll(&pd, 1, PR_INTERVAL_NO_TIMEOUT);
|
|
if (rv == -1) {
|
|
PR_fprintf(PR_STDERR, "wait failed\n");
|
|
exit(1);
|
|
}
|
|
PR_ASSERT(rv != 0);
|
|
PR_ASSERT(pd.out_flags & PR_POLL_READ);
|
|
if (verbosity) {
|
|
PR_fprintf(debug_out, "main thread awakened\n");
|
|
}
|
|
if (PR_WaitForPollableEvent(selfData.event) == PR_FAILURE) {
|
|
PR_fprintf(PR_STDERR, "consume event failed\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
timeEnd = PR_IntervalNow();
|
|
|
|
if (debug_mode) {
|
|
average = PR_IntervalToMicroseconds(timeEnd - timeStart)
|
|
/ (numIterations * numThreads);
|
|
PR_fprintf(debug_out, "Average switch times %d usecs for %d threads\n",
|
|
average, numThreads);
|
|
}
|
|
|
|
for (i = 0; i < numThreads; i++) {
|
|
if (PR_JoinThread(thread[i]) == PR_FAILURE) {
|
|
PR_fprintf(PR_STDERR, "join thread failed\n");
|
|
exit(1);
|
|
}
|
|
PR_DestroyPollableEvent(data[i].event);
|
|
}
|
|
PR_DELETE(block);
|
|
PR_DestroyPollableEvent(selfData.event);
|
|
|
|
PR_fprintf(PR_STDOUT, "PASSED\n");
|
|
return 0;
|
|
}
|