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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: pipeself.c
*
* Description:
* This test has two threads communicating with each other using
* two unidirectional pipes. The primordial thread is the ping
* thread and the other thread is the pong thread. The ping
* thread writes "ping" to the pong thread and the pong thread
* writes "pong" back.
*/
#include "prio.h"
#include "prerror.h"
#include "prthread.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define NUM_ITERATIONS 10
static PRFileDesc *ping_in, *ping_out;
static PRFileDesc *pong_in, *pong_out;
static void PongThreadFunc(void *arg)
{
char buf[1024];
int idx;
PRInt32 nBytes;
PRStatus status;
for (idx = 0; idx < NUM_ITERATIONS; idx++) {
memset(buf, 0, sizeof(buf));
nBytes = PR_Read(pong_in, buf, sizeof(buf));
if (nBytes == -1) {
fprintf(stderr, "PR_Read failed\n");
exit(1);
}
printf("pong thread: received \"%s\"\n", buf);
if (nBytes != 5) {
fprintf(stderr, "pong thread: expected 5 bytes but got %d bytes\n",
nBytes);
exit(1);
}
if (strcmp(buf, "ping") != 0) {
fprintf(stderr, "pong thread: expected \"ping\" but got \"%s\"\n",
buf);
exit(1);
}
strcpy(buf, "pong");
printf("pong thread: sending \"%s\"\n", buf);
nBytes = PR_Write(pong_out, buf, 5);
if (nBytes == -1) {
fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(),
PR_GetOSError());
exit(1);
}
}
status = PR_Close(pong_in);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
status = PR_Close(pong_out);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
int main(int argc, char **argv)
{
PRStatus status;
PRThread *pongThread;
char buf[1024];
PRInt32 nBytes;
int idx;
status = PR_CreatePipe(&ping_in, &pong_out);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_CreatePipe failed\n");
exit(1);
}
status = PR_CreatePipe(&pong_in, &ping_out);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_CreatePipe failed\n");
exit(1);
}
pongThread = PR_CreateThread(PR_USER_THREAD, PongThreadFunc, NULL,
PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0);
if (pongThread == NULL) {
fprintf(stderr, "PR_CreateThread failed\n");
exit(1);
}
for (idx = 0; idx < NUM_ITERATIONS; idx++) {
strcpy(buf, "ping");
printf("ping thread: sending \"%s\"\n", buf);
nBytes = PR_Write(ping_out, 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(ping_in, buf, sizeof(buf));
if (nBytes == -1) {
fprintf(stderr, "PR_Read failed\n");
exit(1);
}
printf("ping thread: received \"%s\"\n", buf);
if (nBytes != 5) {
fprintf(stderr, "ping thread: expected 5 bytes but got %d bytes\n",
nBytes);
exit(1);
}
if (strcmp(buf, "pong") != 0) {
fprintf(stderr, "ping thread: expected \"pong\" but got \"%s\"\n",
buf);
exit(1);
}
}
status = PR_Close(ping_in);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
status = PR_Close(ping_out);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
status = PR_JoinThread(pongThread);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_JoinThread failed\n");
exit(1);
}
#if defined(XP_UNIX)
/*
* Test PR_Available for pipes
*/
status = PR_CreatePipe(&ping_in, &ping_out);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_CreatePipe failed\n");
exit(1);
}
nBytes = PR_Write(ping_out, buf, 250);
if (nBytes == -1) {
fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(),
PR_GetOSError());
exit(1);
}
nBytes = PR_Available(ping_in);
if (nBytes < 0) {
fprintf(stderr, "PR_Available failed: (%d, %d)\n", PR_GetError(),
PR_GetOSError());
exit(1);
} else if (nBytes != 250) {
fprintf(stderr, "PR_Available: expected 250 bytes but got %d bytes\n",
nBytes);
exit(1);
}
printf("PR_Available: expected %d, got %d bytes\n",250, nBytes);
/* read some data */
nBytes = PR_Read(ping_in, buf, 7);
if (nBytes == -1) {
fprintf(stderr, "PR_Read failed\n");
exit(1);
}
/* check available data */
nBytes = PR_Available(ping_in);
if (nBytes < 0) {
fprintf(stderr, "PR_Available failed: (%d, %d)\n", PR_GetError(),
PR_GetOSError());
exit(1);
} else if (nBytes != (250 - 7)) {
fprintf(stderr, "PR_Available: expected 243 bytes but got %d bytes\n",
nBytes);
exit(1);
}
printf("PR_Available: expected %d, got %d bytes\n",243, nBytes);
/* read all data */
nBytes = PR_Read(ping_in, buf, sizeof(buf));
if (nBytes == -1) {
fprintf(stderr, "PR_Read failed\n");
exit(1);
} else if (nBytes != 243) {
fprintf(stderr, "PR_Read failed: expected %d, got %d bytes\n",
243, nBytes);
exit(1);
}
/* check available data */
nBytes = PR_Available(ping_in);
if (nBytes < 0) {
fprintf(stderr, "PR_Available failed: (%d, %d)\n", PR_GetError(),
PR_GetOSError());
exit(1);
} else if (nBytes != 0) {
fprintf(stderr, "PR_Available: expected 0 bytes but got %d bytes\n",
nBytes);
exit(1);
}
printf("PR_Available: expected %d, got %d bytes\n", 0, nBytes);
status = PR_Close(ping_in);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
status = PR_Close(ping_out);
if (status == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
#endif /* XP_UNIX */
printf("PASS\n");
return 0;
}