libuv-svace-build

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/* Copyright libuv project contributors. All rights reserved.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to
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 * deal in the Software without restriction, including without limitation the
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 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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 * sell copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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 * IN THE SOFTWARE.
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 */
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#if !defined(_WIN32)
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#include "uv.h"
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#include "task.h"
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#include <errno.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <string.h>
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static uv_tcp_t server_handle;
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static uv_tcp_t client_handle;
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static uv_tcp_t peer_handle;
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static uv_poll_t poll_req[2];
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static uv_idle_t idle;
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static uv_os_fd_t client_fd;
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static uv_os_fd_t server_fd;
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static int ticks;
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static const int kMaxTicks = 10;
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static int cli_pr_check = 0;
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static int cli_rd_check = 0;
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static int srv_rd_check = 0;
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static int got_eagain(void) {
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  return errno == EAGAIN
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      || errno == EINPROGRESS
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#ifdef EWOULDBLOCK
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      || errno == EWOULDBLOCK
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#endif
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      ;
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}
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static void idle_cb(uv_idle_t* idle) {
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  uv_sleep(100);
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  if (++ticks < kMaxTicks)
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    return;
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  uv_poll_stop(&poll_req[0]);
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  uv_poll_stop(&poll_req[1]);
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  uv_close((uv_handle_t*) &server_handle, NULL);
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  uv_close((uv_handle_t*) &client_handle, NULL);
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  uv_close((uv_handle_t*) &peer_handle, NULL);
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  uv_close((uv_handle_t*) idle, NULL);
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}
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static void poll_cb(uv_poll_t* handle, int status, int events) {
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  char buffer[5];
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  int n;
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  int fd;
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  ASSERT_OK(uv_fileno((uv_handle_t*)handle, &fd));
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  memset(buffer, 0, 5);
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  if (events & UV_PRIORITIZED) {
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    do
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      n = recv(client_fd, &buffer, 5, MSG_OOB);
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    while (n == -1 && errno == EINTR);
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    ASSERT(n >= 0 || errno != EINVAL);
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    cli_pr_check = 1;
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    ASSERT_OK(uv_poll_stop(&poll_req[0]));
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    ASSERT_OK(uv_poll_start(&poll_req[0],
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                            UV_READABLE | UV_WRITABLE,
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                            poll_cb));
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  }
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  if (events & UV_READABLE) {
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    if (fd == client_fd) {
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      do
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        n = recv(client_fd, &buffer, 5, 0);
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      while (n == -1 && errno == EINTR);
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      ASSERT(n >= 0 || errno != EINVAL);
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      if (cli_rd_check == 1) {
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        ASSERT_OK(strncmp(buffer, "world", n));
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        ASSERT_EQ(5, n);
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        cli_rd_check = 2;
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      }
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      if (cli_rd_check == 0) {
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        ASSERT_EQ(4, n);
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        ASSERT_OK(strncmp(buffer, "hello", n));
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        cli_rd_check = 1;
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        do {
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          do
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            n = recv(server_fd, &buffer, 5, 0);
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          while (n == -1 && errno == EINTR);
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          if (n > 0) {
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            ASSERT_EQ(5, n);
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            ASSERT_OK(strncmp(buffer, "world", n));
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            cli_rd_check = 2;
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          }
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        } while (n > 0);
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        ASSERT(got_eagain());
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      }
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    }
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    if (fd == server_fd) {
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      do
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        n = recv(server_fd, &buffer, 3, 0);
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      while (n == -1 && errno == EINTR);
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      ASSERT(n >= 0 || errno != EINVAL);
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      ASSERT_EQ(3, n);
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      ASSERT_OK(strncmp(buffer, "foo", n));
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      srv_rd_check = 1;
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      uv_poll_stop(&poll_req[1]);
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    }
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  }
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  if (events & UV_WRITABLE) {
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    do {
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      n = send(client_fd, "foo", 3, 0);
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    } while (n < 0 && errno == EINTR);
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    ASSERT_EQ(3, n);
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  }
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}
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static void connection_cb(uv_stream_t* handle, int status) {
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  int r;
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  ASSERT_OK(status);
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  ASSERT_OK(uv_accept(handle, (uv_stream_t*) &peer_handle));
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  ASSERT_OK(uv_fileno((uv_handle_t*) &peer_handle, &server_fd));
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  ASSERT_OK(uv_poll_init_socket(uv_default_loop(),
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                                &poll_req[0],
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                                client_fd));
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  ASSERT_OK(uv_poll_init_socket(uv_default_loop(),
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                                &poll_req[1],
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                                server_fd));
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  ASSERT_OK(uv_poll_start(&poll_req[0],
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                          UV_PRIORITIZED | UV_READABLE | UV_WRITABLE,
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                          poll_cb));
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  ASSERT_OK(uv_poll_start(&poll_req[1],
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                          UV_READABLE,
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                          poll_cb));
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  do {
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    r = send(server_fd, "hello", 5, MSG_OOB);
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  } while (r < 0 && errno == EINTR);
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  ASSERT_EQ(5, r);
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  do {
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    r = send(server_fd, "world", 5, 0);
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  } while (r < 0 && errno == EINTR);
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  ASSERT_EQ(5, r);
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  ASSERT_OK(uv_idle_start(&idle, idle_cb));
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}
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TEST_IMPL(poll_oob) {
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  struct sockaddr_in addr;
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  int r = 0;
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  uv_loop_t* loop;
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  ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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  loop = uv_default_loop();
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  ASSERT_OK(uv_tcp_init(loop, &server_handle));
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  ASSERT_OK(uv_tcp_init(loop, &client_handle));
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  ASSERT_OK(uv_tcp_init(loop, &peer_handle));
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  ASSERT_OK(uv_idle_init(loop, &idle));
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  ASSERT_OK(uv_tcp_bind(&server_handle, (const struct sockaddr*) &addr, 0));
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  ASSERT_OK(uv_listen((uv_stream_t*) &server_handle, 1, connection_cb));
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  /* Ensure two separate packets */
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  ASSERT_OK(uv_tcp_nodelay(&client_handle, 1));
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  client_fd = socket(PF_INET, SOCK_STREAM, 0);
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  ASSERT_GE(client_fd, 0);
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  do {
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    errno = 0;
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    r = connect(client_fd, (const struct sockaddr*)&addr, sizeof(addr));
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  } while (r == -1 && errno == EINTR);
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  ASSERT_OK(r);
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  ASSERT_OK(uv_run(loop, UV_RUN_DEFAULT));
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  ASSERT_EQ(ticks, kMaxTicks);
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  /* Did client receive the POLLPRI message */
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  ASSERT_EQ(1, cli_pr_check);
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  /* Did client receive the POLLIN message */
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  ASSERT_EQ(2, cli_rd_check);
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  /* Could we write with POLLOUT and did the server receive our POLLOUT message
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   * through POLLIN.
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   */
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  ASSERT_EQ(1, srv_rd_check);
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  MAKE_VALGRIND_HAPPY(loop);
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  return 0;
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}
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#else
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typedef int file_has_no_tests; /* ISO C forbids an empty translation unit. */
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#endif
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