mirror of
https://github.com/mozilla/gecko-dev.git
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115 lines
3.6 KiB
C
115 lines
3.6 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 test for the io continuation thread machinery
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* in pthreads.
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*/
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#include "nspr.h"
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#include <stdio.h>
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int num_threads = 10; /* must be an even number */
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PRThreadScope thread_scope = PR_GLOBAL_THREAD;
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void ThreadFunc(void *arg)
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{
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PRFileDesc *fd = (PRFileDesc *) arg;
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char buf[1024];
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PRInt32 nbytes;
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PRErrorCode err;
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nbytes = PR_Recv(fd, buf, sizeof(buf), 0, PR_SecondsToInterval(20));
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if (nbytes == -1) {
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err = PR_GetError();
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if (err != PR_PENDING_INTERRUPT_ERROR) {
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fprintf(stderr, "PR_Recv failed: (%d, %d)\n",
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err, PR_GetOSError());
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PR_ProcessExit(1);
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}
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/*
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* After getting an I/O interrupt, this thread must
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* close the fd before it exits due to a limitation
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* of our NT implementation.
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*/
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if (PR_Close(fd) == PR_FAILURE) {
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fprintf(stderr, "PR_Close failed\n");
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PR_ProcessExit(1);
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}
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} else {
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fprintf(stderr, "PR_Recv received %d bytes!?\n", nbytes);
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PR_ProcessExit(1);
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}
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}
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int main(int argc, char **argv)
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{
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PRFileDesc **fds;
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PRThread **threads;
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PRIntervalTime start, elapsed;
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int index;
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fds = (PRFileDesc **) PR_MALLOC(2 * num_threads * sizeof(PRFileDesc *));
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PR_ASSERT(fds != NULL);
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threads = (PRThread **) PR_MALLOC(num_threads * sizeof(PRThread *));
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PR_ASSERT(threads != NULL);
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for (index = 0; index < num_threads; index++) {
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if (PR_NewTCPSocketPair(&fds[2 * index]) == PR_FAILURE) {
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fprintf(stderr, "PR_NewTCPSocket failed\n");
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PR_ProcessExit(1);
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}
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threads[index] = PR_CreateThread(
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PR_USER_THREAD, ThreadFunc, fds[2 * index],
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PR_PRIORITY_NORMAL, thread_scope, PR_JOINABLE_THREAD, 0);
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if (NULL == threads[index]) {
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fprintf(stderr, "PR_CreateThread failed\n");
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PR_ProcessExit(1);
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}
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}
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/* Let the threads block in PR_Recv */
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PR_Sleep(PR_SecondsToInterval(2));
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printf("Interrupting the threads\n");
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fflush(stdout);
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start = PR_IntervalNow();
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for (index = 0; index < num_threads; index++) {
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if (PR_Interrupt(threads[index]) == PR_FAILURE) {
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fprintf(stderr, "PR_Interrupt failed\n");
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PR_ProcessExit(1);
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}
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}
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for (index = 0; index < num_threads; index++) {
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if (PR_JoinThread(threads[index]) == PR_FAILURE) {
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fprintf(stderr, "PR_JoinThread failed\n");
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PR_ProcessExit(1);
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}
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}
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elapsed = (PRIntervalTime)(PR_IntervalNow() - start);
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printf("Threads terminated in %d milliseconds\n",
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PR_IntervalToMilliseconds(elapsed));
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fflush(stdout);
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/* We are being very generous and allow 10 seconds. */
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if (elapsed >= PR_SecondsToInterval(10)) {
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fprintf(stderr, "Interrupting threads took longer than 10 seconds!!\n");
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PR_ProcessExit(1);
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}
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for (index = 0; index < num_threads; index++) {
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/* fds[2 * index] was passed to and closed by threads[index]. */
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if (PR_Close(fds[2 * index + 1]) == PR_FAILURE) {
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fprintf(stderr, "PR_Close failed\n");
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PR_ProcessExit(1);
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}
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}
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PR_DELETE(threads);
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PR_DELETE(fds);
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printf("PASS\n");
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PR_Cleanup();
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return 0;
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}
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