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