b30a3e677b
libuv requires that the socket/fd is in non-blocking mode, so do it
internally so the user doesn't need to write platform specific code to
do so.
This also makes the API consistent with uv_{tcp,udp,pipe}_open, since
it's not required to pass the fd in non-blocking mode there either.
PR-URL: https://github.com/libuv/libuv/pull/136
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
114 lines
3.0 KiB
C
114 lines
3.0 KiB
C
/* Copyright Joyent, Inc. and other Node 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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#include "uv.h"
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#include "internal.h"
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#include <unistd.h>
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#include <assert.h>
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#include <errno.h>
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static void uv__poll_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
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uv_poll_t* handle;
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int pevents;
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handle = container_of(w, uv_poll_t, io_watcher);
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if (events & UV__POLLERR) {
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uv__io_stop(loop, w, UV__POLLIN | UV__POLLOUT);
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uv__handle_stop(handle);
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handle->poll_cb(handle, -EBADF, 0);
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return;
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}
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pevents = 0;
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if (events & UV__POLLIN)
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pevents |= UV_READABLE;
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if (events & UV__POLLOUT)
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pevents |= UV_WRITABLE;
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handle->poll_cb(handle, 0, pevents);
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}
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int uv_poll_init(uv_loop_t* loop, uv_poll_t* handle, int fd) {
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int err;
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err = uv__nonblock(fd, 1);
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if (err)
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return err;
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uv__handle_init(loop, (uv_handle_t*) handle, UV_POLL);
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uv__io_init(&handle->io_watcher, uv__poll_io, fd);
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handle->poll_cb = NULL;
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return 0;
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}
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int uv_poll_init_socket(uv_loop_t* loop, uv_poll_t* handle,
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uv_os_sock_t socket) {
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return uv_poll_init(loop, handle, socket);
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}
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static void uv__poll_stop(uv_poll_t* handle) {
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uv__io_stop(handle->loop, &handle->io_watcher, UV__POLLIN | UV__POLLOUT);
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uv__handle_stop(handle);
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}
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int uv_poll_stop(uv_poll_t* handle) {
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assert(!(handle->flags & (UV_CLOSING | UV_CLOSED)));
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uv__poll_stop(handle);
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return 0;
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}
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int uv_poll_start(uv_poll_t* handle, int pevents, uv_poll_cb poll_cb) {
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int events;
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assert((pevents & ~(UV_READABLE | UV_WRITABLE)) == 0);
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assert(!(handle->flags & (UV_CLOSING | UV_CLOSED)));
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uv__poll_stop(handle);
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if (pevents == 0)
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return 0;
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events = 0;
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if (pevents & UV_READABLE)
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events |= UV__POLLIN;
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if (pevents & UV_WRITABLE)
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events |= UV__POLLOUT;
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uv__io_start(handle->loop, &handle->io_watcher, events);
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uv__handle_start(handle);
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handle->poll_cb = poll_cb;
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return 0;
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}
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void uv__poll_close(uv_poll_t* handle) {
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uv__poll_stop(handle);
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}
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