/* Copyright Fedor Indutny. 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.
*/
#if !defined(_WIN32)
#include "uv.h"
#include "task.h"
#include <errno.h>
#include <sys/socket.h>
#include <unistd.h>
static uv_tcp_t server_handle;
static uv_tcp_t client_handle;
static uv_tcp_t peer_handle;
static uv_idle_t idle;
static uv_connect_t connect_req;
static int ticks;
static const int kMaxTicks = 10;
static void alloc_cb(uv_handle_t* handle,
size_t suggested_size,
uv_buf_t* buf) {
static char storage[1024];
*buf = uv_buf_init(storage, sizeof(storage));
}
static void idle_cb(uv_idle_t* idle) {
if (++ticks < kMaxTicks)
return;
uv_close((uv_handle_t*) &server_handle, NULL);
uv_close((uv_handle_t*) &client_handle, NULL);
uv_close((uv_handle_t*) &peer_handle, NULL);
uv_close((uv_handle_t*) idle, NULL);
}
static void read_cb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf) {
#ifdef __MVS__
char lbuf[12];
#endif
uv_os_fd_t fd;
ASSERT(nread >= 0);
ASSERT(0 == uv_fileno((uv_handle_t*)handle, &fd));
ASSERT(0 == uv_idle_start(&idle, idle_cb));
#ifdef __MVS__
/* Need to flush out the OOB data. Otherwise, this callback will get
* triggered on every poll with nread = 0.
*/
ASSERT(-1 != recv(fd, lbuf, sizeof(lbuf), MSG_OOB));
#endif
}
static void connect_cb(uv_connect_t* req, int status) {
ASSERT(req->handle == (uv_stream_t*) &client_handle);
ASSERT(0 == status);
}
static void connection_cb(uv_stream_t* handle, int status) {
int r;
uv_os_fd_t fd;
ASSERT(0 == status);
ASSERT(0 == uv_accept(handle, (uv_stream_t*) &peer_handle));
ASSERT(0 == uv_read_start((uv_stream_t*) &peer_handle, alloc_cb, read_cb));
/* Send some OOB data */
ASSERT(0 == uv_fileno((uv_handle_t*) &client_handle, &fd));
ASSERT(0 == uv_stream_set_blocking((uv_stream_t*) &client_handle, 1));
/* The problem triggers only on a second message, it seem that xnu is not
* triggering `kevent()` for the first one
*/
do {
r = send(fd, "hello", 5, MSG_OOB);
} while (r < 0 && errno == EINTR);
ASSERT(5 == r);
do {
r = send(fd, "hello", 5, MSG_OOB);
} while (r < 0 && errno == EINTR);
ASSERT(5 == r);
ASSERT(0 == uv_stream_set_blocking((uv_stream_t*) &client_handle, 0));
}
TEST_IMPL(tcp_oob) {
struct sockaddr_in addr;
uv_loop_t* loop;
ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
loop = uv_default_loop();
ASSERT(0 == uv_tcp_init(loop, &server_handle));
ASSERT(0 == uv_tcp_init(loop, &client_handle));
ASSERT(0 == uv_tcp_init(loop, &peer_handle));
ASSERT(0 == uv_idle_init(loop, &idle));
ASSERT(0 == uv_tcp_bind(&server_handle, (const struct sockaddr*) &addr, 0));
ASSERT(0 == uv_listen((uv_stream_t*) &server_handle, 1, connection_cb));
/* Ensure two separate packets */
ASSERT(0 == uv_tcp_nodelay(&client_handle, 1));
ASSERT(0 == uv_tcp_connect(&connect_req,
&client_handle,
(const struct sockaddr*) &addr,
connect_cb));
ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
ASSERT(ticks == kMaxTicks);
MAKE_VALGRIND_HAPPY();
return 0;
}
#endif