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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
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nsprpub/pr/tests/pipeping2.c Normal file
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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/. */
/*
* File: pipeping2.c
*
* Description:
* This test runs in conjunction with the pipepong2 test.
* This test creates two pipes and passes two pipe fd's
* to the pipepong2 test. Then this test writes "ping" to
* to the pipepong2 test and the pipepong2 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 "prproces.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define NUM_ITERATIONS 10
static char *child_argv[] = { "pipepong2", NULL };
int main(int argc, char **argv)
{
PRFileDesc *in_pipe[2];
PRFileDesc *out_pipe[2];
PRStatus status;
PRProcess *process;
PRProcessAttr *attr;
char buf[1024];
PRInt32 nBytes;
PRInt32 exitCode;
int idx;
status = PR_CreatePipe(&in_pipe[0], &in_pipe[1]);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_CreatePipe failed\n");
exit(1);
}
status = PR_CreatePipe(&out_pipe[0], &out_pipe[1]);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_CreatePipe failed\n");
exit(1);
}
status = PR_SetFDInheritable(in_pipe[0], PR_FALSE);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_SetFDInheritable failed\n");
exit(1);
}
status = PR_SetFDInheritable(in_pipe[1], PR_TRUE);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_SetFDInheritable failed\n");
exit(1);
}
status = PR_SetFDInheritable(out_pipe[0], PR_TRUE);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_SetFDInheritable failed\n");
exit(1);
}
status = PR_SetFDInheritable(out_pipe[1], PR_FALSE);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_SetFDInheritable failed\n");
exit(1);
}
attr = PR_NewProcessAttr();
if (attr == NULL) {
fprintf(stderr, "PR_NewProcessAttr failed\n");
exit(1);
}
status = PR_ProcessAttrSetInheritableFD(attr, out_pipe[0], "PIPE_READ");
if (status == PR_FAILURE) {
fprintf(stderr, "PR_ProcessAttrSetInheritableFD failed\n");
exit(1);
}
status = PR_ProcessAttrSetInheritableFD(attr, in_pipe[1], "PIPE_WRITE");
if (status == PR_FAILURE) {
fprintf(stderr, "PR_ProcessAttrSetInheritableFD failed\n");
exit(1);
}
process = PR_CreateProcess(child_argv[0], child_argv, NULL, attr);
if (process == NULL) {
fprintf(stderr, "PR_CreateProcess failed\n");
exit(1);
}
PR_DestroyProcessAttr(attr);
status = PR_Close(out_pipe[0]);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
status = PR_Close(in_pipe[1]);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
for (idx = 0; idx < NUM_ITERATIONS; idx++) {
strcpy(buf, "ping");
printf("ping process: sending \"%s\"\n", buf);
nBytes = PR_Write(out_pipe[1], buf, 5);
if (nBytes == -1) {
fprintf(stderr, "PR_Write failed: (%d, %d)\n",
PR_GetError(), PR_GetOSError());
exit(1);
}
memset(buf, 0, sizeof(buf));
nBytes = PR_Read(in_pipe[0], buf, sizeof(buf));
if (nBytes == -1) {
fprintf(stderr, "PR_Read failed\n");
exit(1);
}
printf("ping process: received \"%s\"\n", buf);
if (nBytes != 5) {
fprintf(stderr, "ping process: expected 5 bytes but got %d bytes\n",
nBytes);
exit(1);
}
if (strcmp(buf, "pong") != 0) {
fprintf(stderr, "ping process: expected \"pong\" but got \"%s\"\n",
buf);
exit(1);
}
}
status = PR_Close(in_pipe[0]);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
status = PR_Close(out_pipe[1]);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
status = PR_WaitProcess(process, &exitCode);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_WaitProcess failed\n");
exit(1);
}
if (exitCode == 0) {
printf("PASS\n");
return 0;
} else {
printf("FAIL\n");
return 1;
}
}