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128 строки
4.0 KiB
C
128 строки
4.0 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) 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: pipepong2.c
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*
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* Description:
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* This test runs in conjunction with the pipeping2 test.
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* The pipeping2 test creates two pipes and passes two
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* pipe fd's to this test. Then the pipeping2 test writes
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* "ping" to this test and this test writes "pong" back.
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* To run this pair of tests, just invoke pipeping2.
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*
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* Tested areas: process creation, pipes, file descriptor
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* inheritance.
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*/
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#include "prerror.h"
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#include "prio.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#define NUM_ITERATIONS 10
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int main()
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{
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PRFileDesc *pipe_read, *pipe_write;
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PRStatus status;
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char buf[1024];
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PRInt32 nBytes;
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int idx;
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pipe_read = PR_GetInheritedFD("PIPE_READ");
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if (pipe_read == NULL) {
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fprintf(stderr, "PR_GetInheritedFD failed\n");
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exit(1);
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}
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status = PR_SetFDInheritable(pipe_read, PR_FALSE);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_SetFDInheritable failed\n");
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exit(1);
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}
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pipe_write = PR_GetInheritedFD("PIPE_WRITE");
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if (pipe_write == NULL) {
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fprintf(stderr, "PR_GetInheritedFD failed\n");
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exit(1);
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}
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status = PR_SetFDInheritable(pipe_write, PR_FALSE);
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if (status == PR_FAILURE) {
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fprintf(stderr, "PR_SetFDInheritable 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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memset(buf, 0, sizeof(buf));
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nBytes = PR_Read(pipe_read, buf, sizeof(buf));
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if (nBytes == -1) {
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fprintf(stderr, "PR_Read failed: (%d, %d)\n",
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PR_GetError(), PR_GetOSError());
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exit(1);
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}
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printf("pong process: received \"%s\"\n", buf);
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if (nBytes != 5) {
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fprintf(stderr, "pong process: 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 process: 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 process: sending \"%s\"\n", buf);
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nBytes = PR_Write(pipe_write, buf, 5);
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if (nBytes == -1) {
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fprintf(stderr, "PR_Write failed\n");
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exit(1);
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}
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}
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status = PR_Close(pipe_read);
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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(pipe_write);
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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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return 0;
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}
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