gecko/nsprpub/pr/tests/sleep.c

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2008-06-06 05:36:51 -07:00
/* -*- 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/. */
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#include "nspr.h"
#if defined(XP_UNIX) || defined(XP_OS2)
#include <stdio.h>
#ifndef XP_OS2
#include <unistd.h>
#endif
#include <sys/time.h>
#if defined(HAVE_SVID_GETTOD)
#define GTOD(_a) gettimeofday(_a)
#else
#define GTOD(_a) gettimeofday((_a), NULL)
#endif
static PRIntn rv = 0;
static void Other(void *unused)
{
PRIntn didit = 0;
while (PR_SUCCESS == PR_Sleep(PR_MillisecondsToInterval(250)))
{
fprintf(stderr, ".");
didit += 1;
}
if (didit < 5) rv = 1;
}
int main(int argc, char **argv)
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{
PRUint32 elapsed;
PRThread *thread;
struct timeval timein, timeout;
PRInt32 onePercent = 3000000UL / 100UL;
fprintf (stderr, "First sleep will sleep 3 seconds.\n");
fprintf (stderr, " sleep 1 begin\n");
(void)GTOD(&timein);
sleep (3);
(void)GTOD(&timeout);
fprintf (stderr, " sleep 1 end\n");
elapsed = 1000000UL * (timeout.tv_sec - timein.tv_sec);
elapsed += (timeout.tv_usec - timein.tv_usec);
fprintf(stderr, "elapsed %u usecs\n", elapsed);
if (labs(elapsed - 3000000UL) > onePercent) rv = 1;
PR_Init (PR_USER_THREAD, PR_PRIORITY_NORMAL, 100);
PR_STDIO_INIT();
fprintf (stderr, "Second sleep should do the same (does it?).\n");
fprintf (stderr, " sleep 2 begin\n");
(void)GTOD(&timein);
sleep (3);
(void)GTOD(&timeout);
fprintf (stderr, " sleep 2 end\n");
elapsed = 1000000UL * (timeout.tv_sec - timein.tv_sec);
elapsed += (timeout.tv_usec - timein.tv_usec);
fprintf(stderr, "elapsed %u usecs\n", elapsed);
if (labs(elapsed - 3000000UL) > onePercent) rv = 1;
fprintf (stderr, "What happens to other threads?\n");
fprintf (stderr, "You should see dots every quarter second.\n");
fprintf (stderr, "If you don't, you're probably running on classic NSPR.\n");
thread = PR_CreateThread(
PR_USER_THREAD, Other, NULL, PR_PRIORITY_NORMAL,
PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
fprintf (stderr, " sleep 2 begin\n");
(void)GTOD(&timein);
sleep (3);
(void)GTOD(&timeout);
fprintf (stderr, " sleep 2 end\n");
PR_Interrupt(thread);
PR_JoinThread(thread);
elapsed = 1000000UL * (timeout.tv_sec - timein.tv_sec);
elapsed += (timeout.tv_usec - timein.tv_usec);
fprintf(stderr, "elapsed %u usecs\n", elapsed);
if (labs(elapsed - 3000000UL) > onePercent) rv = 1;
fprintf(stderr, "%s\n", (0 == rv) ? "PASSED" : "FAILED");
return rv;
}
#else /* defined(XP_UNIX) */
PRIntn main()
{
return 2;
}
#endif /* defined(XP_UNIX) */