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