mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-26 18:31:29 +00:00
117 lines
3.0 KiB
C
117 lines
3.0 KiB
C
/* -*- 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/. */
|
|
|
|
/*
|
|
* File: primblok.c
|
|
* Purpose: testing whether the primordial thread can block in a
|
|
* native blocking function without affecting the correct
|
|
* functioning of NSPR I/O functions (Bugzilla bug #30746)
|
|
*/
|
|
|
|
#if !defined(WINNT)
|
|
|
|
#include <stdio.h>
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
printf("This test is not relevant on this platform\n");
|
|
return 0;
|
|
}
|
|
|
|
#else /* WINNT */
|
|
|
|
#include "nspr.h"
|
|
|
|
#include <windows.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#define TEST_FILE_NAME "primblok.dat"
|
|
|
|
/* use InterlockedExchange to update this variable */
|
|
static LONG iothread_done;
|
|
|
|
static void PR_CALLBACK IOThread(void *arg)
|
|
{
|
|
PRFileDesc *fd;
|
|
char buf[32];
|
|
PRInt32 nbytes;
|
|
|
|
/* Give the primordial thread one second to block */
|
|
Sleep(1000);
|
|
|
|
/*
|
|
* See if our PR_Write call will hang when the primordial
|
|
* thread is blocking in a native blocking function.
|
|
*/
|
|
fd = PR_Open(TEST_FILE_NAME, PR_WRONLY|PR_CREATE_FILE, 0666);
|
|
if (NULL == fd) {
|
|
fprintf(stderr, "PR_Open failed\n");
|
|
exit(1);
|
|
}
|
|
memset(buf, 0xaf, sizeof(buf));
|
|
fprintf(stderr, "iothread: calling PR_Write\n");
|
|
nbytes = PR_Write(fd, buf, sizeof(buf));
|
|
fprintf(stderr, "iothread: PR_Write returned\n");
|
|
if (nbytes != sizeof(buf)) {
|
|
fprintf(stderr, "PR_Write returned %d\n", nbytes);
|
|
exit(1);
|
|
}
|
|
if (PR_Close(fd) == PR_FAILURE) {
|
|
fprintf(stderr, "PR_Close failed\n");
|
|
exit(1);
|
|
}
|
|
if (PR_Delete(TEST_FILE_NAME) == PR_FAILURE) {
|
|
fprintf(stderr, "PR_Delete failed\n");
|
|
exit(1);
|
|
}
|
|
|
|
/* Tell the main thread that we are done */
|
|
InterlockedExchange(&iothread_done, 1);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
PRThread *iothread;
|
|
|
|
/* Must be a global thread */
|
|
iothread = PR_CreateThread(
|
|
PR_USER_THREAD, IOThread, NULL, PR_PRIORITY_NORMAL,
|
|
PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);
|
|
if (iothread == NULL) {
|
|
fprintf(stderr, "cannot create thread\n");
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* Block in a native blocking function.
|
|
* Give iothread 5 seconds to finish its task.
|
|
*/
|
|
Sleep(5000);
|
|
|
|
/*
|
|
* Is iothread done or is it hung?
|
|
*
|
|
* I'm actually only interested in reading the value
|
|
* of iothread_done. I'm using InterlockedExchange as
|
|
* a thread-safe way to read iothread_done.
|
|
*/
|
|
if (InterlockedExchange(&iothread_done, 1) == 0) {
|
|
fprintf(stderr, "iothread is hung\n");
|
|
fprintf(stderr, "FAILED\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (PR_JoinThread(iothread) == PR_FAILURE) {
|
|
fprintf(stderr, "PR_JoinThread failed\n");
|
|
exit(1);
|
|
}
|
|
printf("PASSED\n");
|
|
return 0;
|
|
} /* main */
|
|
|
|
#endif /* WINNT */
|