/* 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 <assert.h>

#include <io.h>

#include <stdlib.h>

#include "uv.h"

#include "internal.h"

#include "handle-inl.h"

uv_handle_type uv_guess_handle(uv_file file) {

  HANDLE handle;

  DWORD mode;

  if (file < 0) {

    return UV_UNKNOWN_HANDLE;

  }

  handle = uv__get_osfhandle(file);

  switch (GetFileType(handle)) {

    case FILE_TYPE_CHAR:

      if (GetConsoleMode(handle, &mode)) {

        return UV_TTY;

      } else {

        return UV_FILE;

      }

    case FILE_TYPE_PIPE:

      return UV_NAMED_PIPE;

    case FILE_TYPE_DISK:

      return UV_FILE;

    default:

      return UV_UNKNOWN_HANDLE;

  }

}

int uv_is_active(const uv_handle_t* handle) {

  return (handle->flags & UV_HANDLE_ACTIVE) &&

        !(handle->flags & UV_HANDLE_CLOSING);

}

void uv_close(uv_handle_t* handle, uv_close_cb cb) {

  uv_loop_t* loop = handle->loop;

  if (handle->flags & UV_HANDLE_CLOSING) {

    assert(0);

    return;

  }

  handle->close_cb = cb;

  /* Handle-specific close actions */

  switch (handle->type) {

    case UV_TCP:

      uv_tcp_close(loop, (uv_tcp_t*)handle);

      return;

    case UV_NAMED_PIPE:

      uv_pipe_close(loop, (uv_pipe_t*) handle);

      return;

    case UV_TTY:

      uv_tty_close((uv_tty_t*) handle);

      return;

    case UV_UDP:

      uv_udp_close(loop, (uv_udp_t*) handle);

      return;

    case UV_POLL:

      uv_poll_close(loop, (uv_poll_t*) handle);

      return;

    case UV_TIMER:

      uv_timer_stop((uv_timer_t*)handle);

      uv__handle_closing(handle);

      uv_want_endgame(loop, handle);

      return;

    case UV_PREPARE:

      uv_prepare_stop((uv_prepare_t*)handle);

      uv__handle_closing(handle);

      uv_want_endgame(loop, handle);

      return;

    case UV_CHECK:

      uv_check_stop((uv_check_t*)handle);

      uv__handle_closing(handle);

      uv_want_endgame(loop, handle);

      return;

    case UV_IDLE:

      uv_idle_stop((uv_idle_t*)handle);

      uv__handle_closing(handle);

      uv_want_endgame(loop, handle);

      return;

    case UV_ASYNC:

      uv_async_close(loop, (uv_async_t*) handle);

      return;

    case UV_SIGNAL:

      uv_signal_close(loop, (uv_signal_t*) handle);

      return;

    case UV_PROCESS:

      uv_process_close(loop, (uv_process_t*) handle);

      return;

    case UV_FS_EVENT:

      uv_fs_event_close(loop, (uv_fs_event_t*) handle);

      return;

    case UV_FS_POLL:

      uv__fs_poll_close((uv_fs_poll_t*) handle);

      uv__handle_closing(handle);

      return;

    default:

      /* Not supported */

      abort();

  }

}

int uv_is_closing(const uv_handle_t* handle) {

  return !!(handle->flags & (UV_HANDLE_CLOSING | UV_HANDLE_CLOSED));

}

uv_os_fd_t uv_get_osfhandle(int fd) {

  return uv__get_osfhandle(fd);

}

int uv_open_osfhandle(uv_os_fd_t os_fd) {

  return _open_osfhandle((intptr_t) os_fd, 0);

}