The Tor Browser: nsprpub/pr/tests/monref.c@97036ab72558

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.

     1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 /*

     7  * This test program demonstrates that PR_ExitMonitor needs to add a

     8  * reference to the PRMonitor object before unlocking the internal

     9  * mutex.

    10  */

    12 #include "prlog.h"

    13 #include "prmon.h"

    14 #include "prthread.h"

    16 #include <stdio.h>

    17 #include <stdlib.h>

    19 /* Protected by the PRMonitor 'mon' in the main function. */

    20 static PRBool done = PR_FALSE;

    22 static void ThreadFunc(void *arg)

    23 {

    24     PRMonitor *mon = (PRMonitor *)arg;

    25     PRStatus rv;

    27     PR_EnterMonitor(mon);

    28     done = PR_TRUE;

    29     rv = PR_Notify(mon);

    30     PR_ASSERT(rv == PR_SUCCESS);

    31     rv = PR_ExitMonitor(mon);

    32     PR_ASSERT(rv == PR_SUCCESS);

    33 }

    35 int main()

    36 {

    37     PRMonitor *mon;

    38     PRThread *thread;

    39     PRStatus rv;

    41     mon = PR_NewMonitor();

    42     if (!mon) {

    43         fprintf(stderr, "PR_NewMonitor failed\n");

    44         exit(1);

    45     }

    47     thread = PR_CreateThread(PR_USER_THREAD, ThreadFunc, mon,

    48                              PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD,

    49                              PR_JOINABLE_THREAD, 0);

    50     if (!thread) {

    51         fprintf(stderr, "PR_CreateThread failed\n");

    52         exit(1);

    53     }

    55     PR_EnterMonitor(mon);

    56     while (!done) {

    57         rv = PR_Wait(mon, PR_INTERVAL_NO_TIMEOUT);

    58         PR_ASSERT(rv == PR_SUCCESS);

    59     }

    60     rv = PR_ExitMonitor(mon);

    61     PR_ASSERT(rv == PR_SUCCESS);

    63     /*

    64      * Do you agree it should be safe to destroy 'mon' now?

    65      * See bug 844784 comment 27.

    66      */

    67     PR_DestroyMonitor(mon);

    69     rv = PR_JoinThread(thread);

    70     PR_ASSERT(rv == PR_SUCCESS);

    72     printf("PASS\n");

    73     return 0;

    74 }

The Tor Browser / file revision

nsprpub/pr/tests/monref.c@97036ab72558

nsprpub/pr/tests/monref.c