michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * This is a test for the io continuation thread machinery
michael@0:  * in pthreads.
michael@0:  */
michael@0: 
michael@0: #include "nspr.h"
michael@0: #include <stdio.h>
michael@0: 
michael@0: int num_threads = 10;  /* must be an even number */
michael@0: PRThreadScope thread_scope = PR_GLOBAL_THREAD;
michael@0: 
michael@0: void ThreadFunc(void *arg)
michael@0: {
michael@0:     PRFileDesc *fd = (PRFileDesc *) arg;
michael@0:     char buf[1024];
michael@0:     PRInt32 nbytes;
michael@0:     PRErrorCode err;
michael@0: 
michael@0:     nbytes = PR_Recv(fd, buf, sizeof(buf), 0, PR_SecondsToInterval(20));
michael@0:     if (nbytes == -1) {
michael@0:         err = PR_GetError();
michael@0:         if (err != PR_PENDING_INTERRUPT_ERROR) {
michael@0:             fprintf(stderr, "PR_Recv failed: (%d, %d)\n",
michael@0:                     err, PR_GetOSError());
michael@0:             PR_ProcessExit(1);
michael@0:         }
michael@0:         /*
michael@0:          * After getting an I/O interrupt, this thread must
michael@0:          * close the fd before it exits due to a limitation
michael@0:          * of our NT implementation.
michael@0:          */
michael@0:         if (PR_Close(fd) == PR_FAILURE) {
michael@0:             fprintf(stderr, "PR_Close failed\n");
michael@0:             PR_ProcessExit(1);
michael@0:         }
michael@0:     } else {
michael@0:         fprintf(stderr, "PR_Recv received %d bytes!?\n", nbytes);
michael@0:         PR_ProcessExit(1);
michael@0:     }
michael@0: }
michael@0: 
michael@0: int main(int argc, char **argv)
michael@0: {
michael@0:     PRFileDesc **fds;
michael@0:     PRThread **threads;
michael@0:     PRIntervalTime start, elapsed;
michael@0:     int index;
michael@0: 
michael@0:     fds = (PRFileDesc **) PR_MALLOC(2 * num_threads * sizeof(PRFileDesc *));
michael@0:     PR_ASSERT(fds != NULL);
michael@0:     threads = (PRThread **) PR_MALLOC(num_threads * sizeof(PRThread *));
michael@0:     PR_ASSERT(threads != NULL);
michael@0: 
michael@0:     for (index = 0; index < num_threads; index++) {
michael@0:         if (PR_NewTCPSocketPair(&fds[2 * index]) == PR_FAILURE) {
michael@0:             fprintf(stderr, "PR_NewTCPSocket failed\n");
michael@0:             PR_ProcessExit(1);
michael@0:         }
michael@0:         threads[index] = PR_CreateThread(
michael@0:                 PR_USER_THREAD, ThreadFunc, fds[2 * index],
michael@0:                 PR_PRIORITY_NORMAL, thread_scope, PR_JOINABLE_THREAD, 0);
michael@0:         if (NULL == threads[index]) {
michael@0:             fprintf(stderr, "PR_CreateThread failed\n");
michael@0:             PR_ProcessExit(1);
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     /* Let the threads block in PR_Recv */
michael@0:     PR_Sleep(PR_SecondsToInterval(2));
michael@0: 
michael@0:     printf("Interrupting the threads\n");
michael@0:     fflush(stdout);
michael@0:     start = PR_IntervalNow();
michael@0:     for (index = 0; index < num_threads; index++) {
michael@0:         if (PR_Interrupt(threads[index]) == PR_FAILURE) {
michael@0:             fprintf(stderr, "PR_Interrupt failed\n");
michael@0:             PR_ProcessExit(1);
michael@0:         }
michael@0:     }
michael@0:     for (index = 0; index < num_threads; index++) {
michael@0:         if (PR_JoinThread(threads[index]) == PR_FAILURE) {
michael@0:             fprintf(stderr, "PR_JoinThread failed\n");
michael@0:             PR_ProcessExit(1);
michael@0:         }
michael@0:     }
michael@0:     elapsed = (PRIntervalTime)(PR_IntervalNow() - start);
michael@0:     printf("Threads terminated in %d milliseconds\n",
michael@0:             PR_IntervalToMilliseconds(elapsed));
michael@0:     fflush(stdout);
michael@0:     
michael@0:     /* We are being very generous and allow 10 seconds. */
michael@0:     if (elapsed >= PR_SecondsToInterval(10)) {
michael@0:         fprintf(stderr, "Interrupting threads took longer than 10 seconds!!\n");
michael@0:         PR_ProcessExit(1);
michael@0:     }
michael@0: 
michael@0:     for (index = 0; index < num_threads; index++) {
michael@0:         /* fds[2 * index] was passed to and closed by threads[index]. */
michael@0:         if (PR_Close(fds[2 * index + 1]) == PR_FAILURE) {
michael@0:             fprintf(stderr, "PR_Close failed\n");
michael@0:             PR_ProcessExit(1);
michael@0:         }
michael@0:     }
michael@0:     PR_DELETE(threads);
michael@0:     PR_DELETE(fds);
michael@0:     printf("PASS\n");
michael@0:     PR_Cleanup();
michael@0:     return 0;
michael@0: }