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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 <stdio.h>
#include <stdlib.h>
static uv_timer_t timer;
static uv_tcp_t tcp;
static uv_connect_t connect_req;
static uv_write_t write_req;
static uv_shutdown_t shutdown_req;
static uv_buf_t qbuf;
static int got_q;
static int got_eof;
static int called_connect_cb;
static int called_shutdown_cb;
static int called_tcp_close_cb;
static int called_timer_close_cb;
static int called_timer_cb;
static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
buf->base = malloc(size);
buf->len = size;
}
static void read_cb(uv_stream_t* t, ssize_t nread, const uv_buf_t* buf) {
ASSERT((uv_tcp_t*)t == &tcp);
if (nread == 0) {
free(buf->base);
return;
}
if (!got_q) {
ASSERT(nread == 1);
ASSERT(!got_eof);
ASSERT(buf->base[0] == 'Q');
free(buf->base);
got_q = 1;
puts("got Q");
} else {
ASSERT(nread == UV_EOF);
if (buf->base) {
free(buf->base);
}
got_eof = 1;
puts("got EOF");
}
}
static void shutdown_cb(uv_shutdown_t *req, int status) {
ASSERT(req == &shutdown_req);
ASSERT(called_connect_cb == 1);
ASSERT(!got_eof);
ASSERT(called_tcp_close_cb == 0);
ASSERT(called_timer_close_cb == 0);
ASSERT(called_timer_cb == 0);
called_shutdown_cb++;
}
static void connect_cb(uv_connect_t *req, int status) {
ASSERT(status == 0);
ASSERT(req == &connect_req);
/* Start reading from our connection so we can receive the EOF. */
uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb);
/*
* Write the letter 'Q' to gracefully kill the echo-server. This will not
* effect our connection.
*/
uv_write(&write_req, (uv_stream_t*) &tcp, &qbuf, 1, NULL);
/* Shutdown our end of the connection. */
uv_shutdown(&shutdown_req, (uv_stream_t*) &tcp, shutdown_cb);
called_connect_cb++;
ASSERT(called_shutdown_cb == 0);
}
static void tcp_close_cb(uv_handle_t* handle) {
ASSERT(handle == (uv_handle_t*) &tcp);
ASSERT(called_connect_cb == 1);
ASSERT(got_q);
ASSERT(got_eof);
ASSERT(called_timer_cb == 1);
called_tcp_close_cb++;
}
static void timer_close_cb(uv_handle_t* handle) {
ASSERT(handle == (uv_handle_t*) &timer);
called_timer_close_cb++;
}
static void timer_cb(uv_timer_t* handle) {
ASSERT(handle == &timer);
uv_close((uv_handle_t*) handle, timer_close_cb);
/*
* The most important assert of the test: we have not received
* tcp_close_cb yet.
*/
ASSERT(called_tcp_close_cb == 0);
uv_close((uv_handle_t*) &tcp, tcp_close_cb);
called_timer_cb++;
}
/*
* This test has a client which connects to the echo_server and immediately
* issues a shutdown. The echo-server, in response, will also shutdown their
* connection. We check, with a timer, that libuv is not automatically
* calling uv_close when the client receives the EOF from echo-server.
*/
TEST_IMPL(shutdown_eof) {
struct sockaddr_in server_addr;
int r;
qbuf.base = "Q";
qbuf.len = 1;
r = uv_timer_init(uv_default_loop(), &timer);
ASSERT(r == 0);
uv_timer_start(&timer, timer_cb, 100, 0);
ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr));
r = uv_tcp_init(uv_default_loop(), &tcp);
ASSERT(!r);
r = uv_tcp_connect(&connect_req,
&tcp,
(const struct sockaddr*) &server_addr,
connect_cb);
ASSERT(!r);
uv_run(uv_default_loop(), UV_RUN_DEFAULT);
ASSERT(called_connect_cb == 1);
ASSERT(called_shutdown_cb == 1);
ASSERT(got_eof);
ASSERT(got_q);
ASSERT(called_tcp_close_cb == 1);
ASSERT(called_timer_close_cb == 1);
ASSERT(called_timer_cb == 1);
MAKE_VALGRIND_HAPPY();
return 0;
}