forked from cory/tildefriends
123 lines
7.8 KiB
C
123 lines
7.8 KiB
C
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/* 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 <assert.h>
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#include "uv.h"
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#include "internal.h"
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#include "handle-inl.h"
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void uv_loop_watcher_endgame(uv_loop_t* loop, uv_handle_t* handle) {
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if (handle->flags & UV_HANDLE_CLOSING) {
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assert(!(handle->flags & UV_HANDLE_CLOSED));
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handle->flags |= UV_HANDLE_CLOSED;
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uv__handle_close(handle);
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}
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}
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#define UV_LOOP_WATCHER_DEFINE(name, NAME) \
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int uv_##name##_init(uv_loop_t* loop, uv_##name##_t* handle) { \
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uv__handle_init(loop, (uv_handle_t*) handle, UV_##NAME); \
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\
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return 0; \
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} \
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\
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\
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int uv_##name##_start(uv_##name##_t* handle, uv_##name##_cb cb) { \
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uv_loop_t* loop = handle->loop; \
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uv_##name##_t* old_head; \
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\
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assert(handle->type == UV_##NAME); \
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\
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if (uv__is_active(handle)) \
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return 0; \
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\
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if (cb == NULL) \
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return UV_EINVAL; \
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\
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old_head = loop->name##_handles; \
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\
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handle->name##_next = old_head; \
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handle->name##_prev = NULL; \
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\
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if (old_head) { \
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old_head->name##_prev = handle; \
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} \
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\
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loop->name##_handles = handle; \
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\
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handle->name##_cb = cb; \
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uv__handle_start(handle); \
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\
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return 0; \
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} \
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\
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\
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int uv_##name##_stop(uv_##name##_t* handle) { \
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uv_loop_t* loop = handle->loop; \
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\
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assert(handle->type == UV_##NAME); \
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\
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if (!uv__is_active(handle)) \
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return 0; \
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\
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/* Update loop head if needed */ \
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if (loop->name##_handles == handle) { \
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loop->name##_handles = handle->name##_next; \
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} \
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\
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/* Update the iterator-next pointer of needed */ \
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if (loop->next_##name##_handle == handle) { \
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loop->next_##name##_handle = handle->name##_next; \
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} \
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\
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if (handle->name##_prev) { \
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handle->name##_prev->name##_next = handle->name##_next; \
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} \
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if (handle->name##_next) { \
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handle->name##_next->name##_prev = handle->name##_prev; \
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} \
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\
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uv__handle_stop(handle); \
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\
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return 0; \
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} \
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\
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\
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void uv_##name##_invoke(uv_loop_t* loop) { \
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uv_##name##_t* handle; \
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\
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(loop)->next_##name##_handle = (loop)->name##_handles; \
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\
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while ((loop)->next_##name##_handle != NULL) { \
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handle = (loop)->next_##name##_handle; \
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(loop)->next_##name##_handle = handle->name##_next; \
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\
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handle->name##_cb(handle); \
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} \
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}
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UV_LOOP_WATCHER_DEFINE(prepare, PREPARE)
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UV_LOOP_WATCHER_DEFINE(check, CHECK)
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UV_LOOP_WATCHER_DEFINE(idle, IDLE)
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