зеркало из https://github.com/mozilla/gecko-dev.git
78 строки
2.2 KiB
C
78 строки
2.2 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* This is a regression test for the bug that the interval timer
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* is not initialized when _PR_CreateCPU calls PR_IntervalNow.
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* The bug would make this test program finish prematurely,
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* when the SHORT_TIMEOUT period expires. The correct behavior
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* is for the test to finish when the LONG_TIMEOUT period expires.
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*/
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#include "prlock.h"
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#include "prcvar.h"
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#include "prthread.h"
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#include "prinrval.h"
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#include "prlog.h"
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#include <stdio.h>
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#include <stdlib.h>
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/* The timeouts, in milliseconds */
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#define SHORT_TIMEOUT 1000
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#define LONG_TIMEOUT 3000
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PRLock *lock1, *lock2;
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PRCondVar *cv1, *cv2;
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void ThreadFunc(void *arg)
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{
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PR_Lock(lock1);
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PR_WaitCondVar(cv1, PR_MillisecondsToInterval(SHORT_TIMEOUT));
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PR_Unlock(lock1);
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}
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int main(int argc, char **argv)
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{
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PRThread *thread;
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PRIntervalTime start, end;
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PRUint32 elapsed_ms;
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lock1 = PR_NewLock();
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PR_ASSERT(NULL != lock1);
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cv1 = PR_NewCondVar(lock1);
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PR_ASSERT(NULL != cv1);
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lock2 = PR_NewLock();
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PR_ASSERT(NULL != lock2);
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cv2 = PR_NewCondVar(lock2);
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PR_ASSERT(NULL != cv2);
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start = PR_IntervalNow();
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thread = PR_CreateThread(
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PR_USER_THREAD,
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ThreadFunc,
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NULL,
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PR_PRIORITY_NORMAL,
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PR_LOCAL_THREAD,
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PR_JOINABLE_THREAD,
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0);
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PR_ASSERT(NULL != thread);
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PR_Lock(lock2);
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PR_WaitCondVar(cv2, PR_MillisecondsToInterval(LONG_TIMEOUT));
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PR_Unlock(lock2);
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PR_JoinThread(thread);
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end = PR_IntervalNow();
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elapsed_ms = PR_IntervalToMilliseconds((PRIntervalTime)(end - start));
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/* Allow 100ms imprecision */
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if (elapsed_ms < LONG_TIMEOUT - 100 || elapsed_ms > LONG_TIMEOUT + 100) {
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printf("Elapsed time should be %u ms but is %u ms\n",
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LONG_TIMEOUT, elapsed_ms);
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printf("FAIL\n");
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exit(1);
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}
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printf("Elapsed time: %u ms, expected time: %u ms\n",
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LONG_TIMEOUT, elapsed_ms);
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printf("PASS\n");
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return 0;
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}
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