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/* -*- 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/. */
/*
* This is a regression test for the bug that the interval timer
* is not initialized when _PR_CreateCPU calls PR_IntervalNow.
* The bug would make this test program finish prematurely,
* when the SHORT_TIMEOUT period expires. The correct behavior
* is for the test to finish when the LONG_TIMEOUT period expires.
*/
#include "prlock.h"
#include "prcvar.h"
#include "prthread.h"
#include "prinrval.h"
#include "prlog.h"
#include <stdio.h>
#include <stdlib.h>
/* The timeouts, in milliseconds */
#define SHORT_TIMEOUT 1000
#define LONG_TIMEOUT 3000
PRLock *lock1, *lock2;
PRCondVar *cv1, *cv2;
void ThreadFunc(void *arg)
{
PR_Lock(lock1);
PR_WaitCondVar(cv1, PR_MillisecondsToInterval(SHORT_TIMEOUT));
PR_Unlock(lock1);
}
int main(int argc, char **argv)
{
PRThread *thread;
PRIntervalTime start, end;
PRUint32 elapsed_ms;
lock1 = PR_NewLock();
PR_ASSERT(NULL != lock1);
cv1 = PR_NewCondVar(lock1);
PR_ASSERT(NULL != cv1);
lock2 = PR_NewLock();
PR_ASSERT(NULL != lock2);
cv2 = PR_NewCondVar(lock2);
PR_ASSERT(NULL != cv2);
start = PR_IntervalNow();
thread = PR_CreateThread(
PR_USER_THREAD,
ThreadFunc,
NULL,
PR_PRIORITY_NORMAL,
PR_LOCAL_THREAD,
PR_JOINABLE_THREAD,
0);
PR_ASSERT(NULL != thread);
PR_Lock(lock2);
PR_WaitCondVar(cv2, PR_MillisecondsToInterval(LONG_TIMEOUT));
PR_Unlock(lock2);
PR_JoinThread(thread);
end = PR_IntervalNow();
elapsed_ms = PR_IntervalToMilliseconds((PRIntervalTime)(end - start));
/* Allow 100ms imprecision */
if (elapsed_ms < LONG_TIMEOUT - 100 || elapsed_ms > LONG_TIMEOUT + 100) {
printf("Elapsed time should be %u ms but is %u ms\n",
LONG_TIMEOUT, elapsed_ms);
printf("FAIL\n");
exit(1);
}
printf("Elapsed time: %u ms, expected time: %u ms\n",
LONG_TIMEOUT, elapsed_ms);
printf("PASS\n");
return 0;
}
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