/* Copyright libuv project 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.
*/
#if !defined(_WIN32)
#include "uv.h"
#include "task.h"
#include <errno.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <string.h>
static uv_tcp_t server_handle;
static uv_tcp_t client_handle;
static uv_tcp_t peer_handle;
static uv_poll_t poll_req[2];
static uv_idle_t idle;
static uv_os_fd_t client_fd;
static uv_os_fd_t server_fd;
static int ticks;
static const int kMaxTicks = 10;
static int cli_pr_check = 0;
static int cli_rd_check = 0;
static int srv_rd_check = 0;
static int got_eagain(void) {
return errno == EAGAIN
|| errno == EINPROGRESS
#ifdef EWOULDBLOCK
|| errno == EWOULDBLOCK
#endif
;
}
static void idle_cb(uv_idle_t* idle) {
uv_sleep(100);
if (++ticks < kMaxTicks)
return;
uv_poll_stop(&poll_req[0]);
uv_poll_stop(&poll_req[1]);
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 poll_cb(uv_poll_t* handle, int status, int events) {
char buffer[5];
int n;
int fd;
ASSERT(0 == uv_fileno((uv_handle_t*)handle, &fd));
memset(buffer, 0, 5);
if (events & UV_PRIORITIZED) {
do
n = recv(client_fd, &buffer, 5, MSG_OOB);
while (n == -1 && errno == EINTR);
ASSERT(n >= 0 || errno != EINVAL);
cli_pr_check = 1;
ASSERT(0 == uv_poll_stop(&poll_req[0]));
ASSERT(0 == uv_poll_start(&poll_req[0],
UV_READABLE | UV_WRITABLE,
poll_cb));
}
if (events & UV_READABLE) {
if (fd == client_fd) {
do
n = recv(client_fd, &buffer, 5, 0);
while (n == -1 && errno == EINTR);
ASSERT(n >= 0 || errno != EINVAL);
if (cli_rd_check == 1) {
ASSERT(strncmp(buffer, "world", n) == 0);
ASSERT(5 == n);
cli_rd_check = 2;
}
if (cli_rd_check == 0) {
ASSERT(n == 4);
ASSERT(strncmp(buffer, "hello", n) == 0);
cli_rd_check = 1;
do {
do
n = recv(server_fd, &buffer, 5, 0);
while (n == -1 && errno == EINTR);
if (n > 0) {
ASSERT(n == 5);
ASSERT(strncmp(buffer, "world", n) == 0);
cli_rd_check = 2;
}
} while (n > 0);
ASSERT(got_eagain());
}
}
if (fd == server_fd) {
do
n = recv(server_fd, &buffer, 3, 0);
while (n == -1 && errno == EINTR);
ASSERT(n >= 0 || errno != EINVAL);
ASSERT(3 == n);
ASSERT(strncmp(buffer, "foo", n) == 0);
srv_rd_check = 1;
uv_poll_stop(&poll_req[1]);
}
}
if (events & UV_WRITABLE) {
do {
n = send(client_fd, "foo", 3, 0);
} while (n < 0 && errno == EINTR);
ASSERT(3 == n);
}
}
static void connection_cb(uv_stream_t* handle, int status) {
int r;
ASSERT(0 == status);
ASSERT(0 == uv_accept(handle, (uv_stream_t*) &peer_handle));
ASSERT(0 == uv_fileno((uv_handle_t*) &peer_handle, &server_fd));
ASSERT(0 == uv_poll_init_socket(uv_default_loop(), &poll_req[0], client_fd));
ASSERT(0 == uv_poll_init_socket(uv_default_loop(), &poll_req[1], server_fd));
ASSERT(0 == uv_poll_start(&poll_req[0],
UV_PRIORITIZED | UV_READABLE | UV_WRITABLE,
poll_cb));
ASSERT(0 == uv_poll_start(&poll_req[1],
UV_READABLE,
poll_cb));
do {
r = send(server_fd, "hello", 5, MSG_OOB);
} while (r < 0 && errno == EINTR);
ASSERT(5 == r);
do {
r = send(server_fd, "world", 5, 0);
} while (r < 0 && errno == EINTR);
ASSERT(5 == r);
ASSERT(0 == uv_idle_start(&idle, idle_cb));
}
TEST_IMPL(poll_oob) {
struct sockaddr_in addr;
int r = 0;
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));
client_fd = socket(PF_INET, SOCK_STREAM, 0);
ASSERT(client_fd >= 0);
do {
errno = 0;
r = connect(client_fd, (const struct sockaddr*)&addr, sizeof(addr));
} while (r == -1 && errno == EINTR);
ASSERT(r == 0);
ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
ASSERT(ticks == kMaxTicks);
/* Did client receive the POLLPRI message */
ASSERT(cli_pr_check == 1);
/* Did client receive the POLLIN message */
ASSERT(cli_rd_check == 2);
/* Could we write with POLLOUT and did the server receive our POLLOUT message
* through POLLIN.
*/
ASSERT(srv_rd_check == 1);
MAKE_VALGRIND_HAPPY();
return 0;
}
#endif