1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a copy 4 * of this software and associated documentation files (the "Software"), to 5 * deal in the Software without restriction, including without limitation the 6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 7 * sell copies of the Software, and to permit persons to whom the Software is 8 * furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 19 * IN THE SOFTWARE. 20 */ 21 22 #include "uv.h" 23 #include "internal.h" 24 25 #define UV_LOOP_WATCHER_DEFINE(name, type) \ 26 int uv_##name##_init(uv_loop_t* loop, uv_##name##_t* handle) { \ 27 uv__handle_init(loop, (uv_handle_t*)handle, UV_##type); \ 28 handle->name##_cb = NULL; \ 29 return 0; \ 30 } \ 31 \ 32 int uv_##name##_start(uv_##name##_t* handle, uv_##name##_cb cb) { \ 33 if (uv__is_active(handle)) return 0; \ 34 if (cb == NULL) return UV_EINVAL; \ 35 QUEUE_INSERT_HEAD(&handle->loop->name##_handles, &handle->queue); \ 36 handle->name##_cb = cb; \ 37 uv__handle_start(handle); \ 38 return 0; \ 39 } \ 40 \ 41 int uv_##name##_stop(uv_##name##_t* handle) { \ 42 if (!uv__is_active(handle)) return 0; \ 43 QUEUE_REMOVE(&handle->queue); \ 44 uv__handle_stop(handle); \ 45 return 0; \ 46 } \ 47 \ 48 void uv__run_##name(uv_loop_t* loop) { \ 49 uv_##name##_t* h; \ 50 QUEUE queue; \ 51 QUEUE* q; \ 52 QUEUE_MOVE(&loop->name##_handles, &queue); \ 53 while (!QUEUE_EMPTY(&queue)) { \ 54 q = QUEUE_HEAD(&queue); \ 55 h = QUEUE_DATA(q, uv_##name##_t, queue); \ 56 QUEUE_REMOVE(q); \ 57 QUEUE_INSERT_TAIL(&loop->name##_handles, q); \ 58 h->name##_cb(h); \ 59 } \ 60 } \ 61 \ 62 void uv__##name##_close(uv_##name##_t* handle) { \ 63 uv_##name##_stop(handle); \ 64 } 65 66 UV_LOOP_WATCHER_DEFINE(prepare, PREPARE) 67 UV_LOOP_WATCHER_DEFINE(check, CHECK) 68 UV_LOOP_WATCHER_DEFINE(idle, IDLE) 69