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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "uv.h"
#include "task.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#define PING "PING"
static uv_pipe_t a;
static uv_pipe_t b;
static uv_write_t req;
static uv_buf_t buf;
static enum {
STATE_MAIN_START,
STATE_THREAD_START,
STATE_MAIN_CLOSE,
STATE_THREAD_CLOSE,
} state;
static void pinger_read_cb(uv_stream_t* stream, ssize_t nread, uv_buf_t buf) {
ASSERT(state == STATE_MAIN_CLOSE);
state = STATE_THREAD_CLOSE;
ASSERT((uv_pipe_t*)stream == &b);
ASSERT(nread < 0);
ASSERT(uv_last_error(stream->loop).code == UV_EOF);
free(buf.base);
uv_close((uv_handle_t*)stream, NULL);
}
static void main_thread_read_cb(uv_stream_t* stream, ssize_t nread,
uv_buf_t buf) {
ASSERT(state == STATE_THREAD_START);
state = STATE_MAIN_CLOSE;
ASSERT((uv_pipe_t*)stream == &a);
ASSERT(stream->loop == uv_default_loop());
if (nread > 0) {
ASSERT(strcmp(buf.base, PING) == 0);
uv_close((uv_handle_t*)stream, NULL);
}
free(buf.base);
}
static uv_buf_t alloc_cb(uv_handle_t* handle, size_t size) {
uv_buf_t buf;
buf.base = (char*)malloc(size);
buf.len = size;
return buf;
}
void start(void* data) {
uv_loop_t* loop;
int r;
ASSERT(state == STATE_MAIN_START);
state = STATE_THREAD_START;
loop = data;
buf = uv_buf_init(PING, strlen(PING));
if (uv_write(&req, (uv_stream_t*)&b, &buf, 1, NULL)) {
FATAL("uv_write failed");
}
uv_read_start((uv_stream_t*)&b, alloc_cb, pinger_read_cb);
uv_run(loop);
ASSERT(state == STATE_THREAD_CLOSE);
}
TEST_IMPL(pipe_pair) {
int r;
uv_err_t err;
uv_thread_t tid;
uv_loop_t* loop;
state = STATE_MAIN_START;
r = uv_pipe_init(uv_default_loop(), &a, 1);
ASSERT(r == 0);
loop = uv_loop_new();
ASSERT(loop);
r = uv_pipe_init(loop, &b, 1);
ASSERT(r == 0);
err = uv_pipe_pair(&a, &b);
ASSERT(err.code == UV_OK);
r = uv_thread_create(&tid, start, loop);
ASSERT(r == 0);
uv_read_start((uv_stream_t*)&a, alloc_cb, main_thread_read_cb);
uv_run(uv_default_loop());
uv_thread_join(&tid);
ASSERT(state == STATE_THREAD_CLOSE);
return 0;
}