зеркало из https://github.com/mozilla/pjs.git
258 строки
7.5 KiB
C
258 строки
7.5 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape Portable Runtime (NSPR).
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1999-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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/*
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* File: pipeself.c
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*
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* Description:
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* This test has two threads communicating with each other using
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* two unidirectional pipes. The primordial thread is the ping
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* thread and the other thread is the pong thread. The ping
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* thread writes "ping" to the pong thread and the pong thread
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* writes "pong" back.
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*/
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#include "prio.h"
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#include "prerror.h"
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#include "prthread.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define NUM_ITERATIONS 10
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static PRFileDesc *ping_in, *ping_out;
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static PRFileDesc *pong_in, *pong_out;
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static void PongThreadFunc(void *arg)
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{
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char buf[1024];
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int idx;
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PRInt32 nBytes;
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PRStatus status;
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for (idx = 0; idx < NUM_ITERATIONS; idx++) {
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memset(buf, 0, sizeof(buf));
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nBytes = PR_Read(pong_in, buf, sizeof(buf));
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if (nBytes == -1) {
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fprintf(stderr, "PR_Read failed\n");
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exit(1);
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}
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printf("pong thread: received \"%s\"\n", buf);
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if (nBytes != 5) {
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fprintf(stderr, "pong thread: expected 5 bytes but got %d bytes\n",
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nBytes);
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exit(1);
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}
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if (strcmp(buf, "ping") != 0) {
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fprintf(stderr, "pong thread: expected \"ping\" but got \"%s\"\n",
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buf);
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exit(1);
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}
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strcpy(buf, "pong");
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printf("pong thread: sending \"%s\"\n", buf);
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nBytes = PR_Write(pong_out, buf, 5);
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if (nBytes == -1) {
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fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(),
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PR_GetOSError());
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exit(1);
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}
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}
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status = PR_Close(pong_in);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_Close failed\n");
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exit(1);
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}
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status = PR_Close(pong_out);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_Close failed\n");
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exit(1);
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}
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}
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int main()
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{
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PRStatus status;
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PRThread *pongThread;
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char buf[1024];
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PRInt32 nBytes;
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int idx;
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status = PR_CreatePipe(&ping_in, &pong_out);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_CreatePipe failed\n");
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exit(1);
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}
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status = PR_CreatePipe(&pong_in, &ping_out);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_CreatePipe failed\n");
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exit(1);
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}
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pongThread = PR_CreateThread(PR_USER_THREAD, PongThreadFunc, NULL,
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PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);
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if (pongThread == NULL) {
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fprintf(stderr, "PR_CreateThread failed\n");
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exit(1);
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}
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for (idx = 0; idx < NUM_ITERATIONS; idx++) {
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strcpy(buf, "ping");
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printf("ping thread: sending \"%s\"\n", buf);
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nBytes = PR_Write(ping_out, buf, 5);
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if (nBytes == -1) {
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fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(),
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PR_GetOSError());
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exit(1);
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}
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memset(buf, 0, sizeof(buf));
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nBytes = PR_Read(ping_in, buf, sizeof(buf));
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if (nBytes == -1) {
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fprintf(stderr, "PR_Read failed\n");
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exit(1);
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}
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printf("ping thread: received \"%s\"\n", buf);
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if (nBytes != 5) {
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fprintf(stderr, "ping thread: expected 5 bytes but got %d bytes\n",
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nBytes);
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exit(1);
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}
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if (strcmp(buf, "pong") != 0) {
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fprintf(stderr, "ping thread: expected \"pong\" but got \"%s\"\n",
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buf);
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exit(1);
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}
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}
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status = PR_Close(ping_in);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_Close failed\n");
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exit(1);
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}
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status = PR_Close(ping_out);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_Close failed\n");
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exit(1);
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}
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status = PR_JoinThread(pongThread);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_JoinThread failed\n");
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exit(1);
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}
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#ifdef XP_UNIX
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/*
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* Test PR_Available for pipes
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*/
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status = PR_CreatePipe(&ping_in, &ping_out);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_CreatePipe failed\n");
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exit(1);
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}
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nBytes = PR_Write(ping_out, buf, 250);
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if (nBytes == -1) {
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fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(),
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PR_GetOSError());
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exit(1);
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}
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nBytes = PR_Available(ping_in);
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if (nBytes < 0) {
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fprintf(stderr, "PR_Available failed: (%d, %d)\n", PR_GetError(),
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PR_GetOSError());
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exit(1);
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} else if (nBytes != 250) {
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fprintf(stderr, "PR_Available: expected 250 bytes but got %d bytes\n",
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nBytes);
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exit(1);
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}
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printf("PR_Available: expected %d, got %d bytes\n",250, nBytes);
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/* read some data */
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nBytes = PR_Read(ping_in, buf, 7);
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if (nBytes == -1) {
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fprintf(stderr, "PR_Read failed\n");
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exit(1);
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}
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/* check available data */
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nBytes = PR_Available(ping_in);
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if (nBytes < 0) {
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fprintf(stderr, "PR_Available failed: (%d, %d)\n", PR_GetError(),
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PR_GetOSError());
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exit(1);
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} else if (nBytes != (250 - 7)) {
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fprintf(stderr, "PR_Available: expected 243 bytes but got %d bytes\n",
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nBytes);
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exit(1);
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}
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printf("PR_Available: expected %d, got %d bytes\n",243, nBytes);
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/* read all data */
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nBytes = PR_Read(ping_in, buf, sizeof(buf));
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if (nBytes == -1) {
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fprintf(stderr, "PR_Read failed\n");
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exit(1);
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} else if (nBytes != 243) {
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fprintf(stderr, "PR_Read failed: expected %d, got %d bytes\n",
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243, nBytes);
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exit(1);
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}
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/* check available data */
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nBytes = PR_Available(ping_in);
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if (nBytes < 0) {
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fprintf(stderr, "PR_Available failed: (%d, %d)\n", PR_GetError(),
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PR_GetOSError());
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exit(1);
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} else if (nBytes != 0) {
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fprintf(stderr, "PR_Available: expected 0 bytes but got %d bytes\n",
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nBytes);
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exit(1);
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}
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printf("PR_Available: expected %d, got %d bytes\n", 0, nBytes);
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status = PR_Close(ping_in);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_Close failed\n");
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exit(1);
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}
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status = PR_Close(ping_out);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_Close failed\n");
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exit(1);
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}
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#endif /* XP_UNIX */
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printf("PASS\n");
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return 0;
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}
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