nsprpub/pr/tests/initclk.c

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 /*
michael@0 7 * This is a regression test for the bug that the interval timer
michael@0 8 * is not initialized when _PR_CreateCPU calls PR_IntervalNow.
michael@0 9 * The bug would make this test program finish prematurely,
michael@0 10 * when the SHORT_TIMEOUT period expires. The correct behavior
michael@0 11 * is for the test to finish when the LONG_TIMEOUT period expires.
michael@0 12 */
michael@0 13
michael@0 14 #include "prlock.h"
michael@0 15 #include "prcvar.h"
michael@0 16 #include "prthread.h"
michael@0 17 #include "prinrval.h"
michael@0 18 #include "prlog.h"
michael@0 19 #include <stdio.h>
michael@0 20 #include <stdlib.h>
michael@0 21
michael@0 22 /* The timeouts, in milliseconds */
michael@0 23 #define SHORT_TIMEOUT 1000
michael@0 24 #define LONG_TIMEOUT 3000
michael@0 25
michael@0 26 PRLock *lock1, *lock2;
michael@0 27 PRCondVar *cv1, *cv2;
michael@0 28
michael@0 29 void ThreadFunc(void *arg)
michael@0 30 {
michael@0 31 PR_Lock(lock1);
michael@0 32 PR_WaitCondVar(cv1, PR_MillisecondsToInterval(SHORT_TIMEOUT));
michael@0 33 PR_Unlock(lock1);
michael@0 34 }
michael@0 35
michael@0 36 int main(int argc, char **argv)
michael@0 37 {
michael@0 38 PRThread *thread;
michael@0 39 PRIntervalTime start, end;
michael@0 40 PRUint32 elapsed_ms;
michael@0 41
michael@0 42 lock1 = PR_NewLock();
michael@0 43 PR_ASSERT(NULL != lock1);
michael@0 44 cv1 = PR_NewCondVar(lock1);
michael@0 45 PR_ASSERT(NULL != cv1);
michael@0 46 lock2 = PR_NewLock();
michael@0 47 PR_ASSERT(NULL != lock2);
michael@0 48 cv2 = PR_NewCondVar(lock2);
michael@0 49 PR_ASSERT(NULL != cv2);
michael@0 50 start = PR_IntervalNow();
michael@0 51 thread = PR_CreateThread(
michael@0 52 PR_USER_THREAD,
michael@0 53 ThreadFunc,
michael@0 54 NULL,
michael@0 55 PR_PRIORITY_NORMAL,
michael@0 56 PR_LOCAL_THREAD,
michael@0 57 PR_JOINABLE_THREAD,
michael@0 58 0);
michael@0 59 PR_ASSERT(NULL != thread);
michael@0 60 PR_Lock(lock2);
michael@0 61 PR_WaitCondVar(cv2, PR_MillisecondsToInterval(LONG_TIMEOUT));
michael@0 62 PR_Unlock(lock2);
michael@0 63 PR_JoinThread(thread);
michael@0 64 end = PR_IntervalNow();
michael@0 65 elapsed_ms = PR_IntervalToMilliseconds((PRIntervalTime)(end - start));
michael@0 66 /* Allow 100ms imprecision */
michael@0 67 if (elapsed_ms < LONG_TIMEOUT - 100 || elapsed_ms > LONG_TIMEOUT + 100) {
michael@0 68 printf("Elapsed time should be %u ms but is %u ms\n",
michael@0 69 LONG_TIMEOUT, elapsed_ms);
michael@0 70 printf("FAIL\n");
michael@0 71 exit(1);
michael@0 72 }
michael@0 73 printf("Elapsed time: %u ms, expected time: %u ms\n",
michael@0 74 LONG_TIMEOUT, elapsed_ms);
michael@0 75 printf("PASS\n");
michael@0 76 return 0;
michael@0 77 }

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