/* 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.

 */

#include "uv.h"

#include "task.h"

#ifdef _WIN32

TEST_IMPL(eintr_handling) {

  RETURN_SKIP("Test not implemented on Windows.");

}

#else  /* !_WIN32 */

#include <string.h>

#include <unistd.h>

static uv_loop_t* loop;

static uv_fs_t read_req;

static uv_buf_t iov;

static char buf[32];

static char test_buf[] = "test-buffer\n";

int pipe_fds[2];

struct thread_ctx {

  uv_barrier_t barrier;

  int fd;

};

static void thread_main(void* arg) {

  int nwritten;

  ASSERT(0 == kill(getpid(), SIGUSR1));

  do

    nwritten = write(pipe_fds[1], test_buf, sizeof(test_buf));

  while (nwritten == -1 && errno == EINTR);

  ASSERT(nwritten == sizeof(test_buf));

}

static void sig_func(uv_signal_t* handle, int signum) {

  uv_signal_stop(handle);

}

TEST_IMPL(eintr_handling) {

  struct thread_ctx ctx;

  uv_thread_t thread;

  uv_signal_t signal;

  int nread;

  iov = uv_buf_init(buf, sizeof(buf));

  loop = uv_default_loop();

  ASSERT(0 == uv_signal_init(loop, &signal));

  ASSERT(0 == uv_signal_start(&signal, sig_func, SIGUSR1));

  ASSERT(0 == pipe(pipe_fds));

  ASSERT(0 == uv_thread_create(&thread, thread_main, &ctx));

  nread = uv_fs_read(loop, &read_req, pipe_fds[0], &iov, 1, -1, NULL);

  ASSERT(nread == sizeof(test_buf));

  ASSERT(0 == strcmp(buf, test_buf));

  ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));

  ASSERT(0 == close(pipe_fds[0]));

  ASSERT(0 == close(pipe_fds[1]));

  uv_close((uv_handle_t*) &signal, NULL);

  MAKE_VALGRIND_HAPPY();

  return 0;

}

#endif  /* !_WIN32 */