11cb0ef41Sopenharmony_ci/* Copyright Joyent, Inc. and other Node contributors. All rights reserved. 21cb0ef41Sopenharmony_ci * 31cb0ef41Sopenharmony_ci * Permission is hereby granted, free of charge, to any person obtaining a copy 41cb0ef41Sopenharmony_ci * of this software and associated documentation files (the "Software"), to 51cb0ef41Sopenharmony_ci * deal in the Software without restriction, including without limitation the 61cb0ef41Sopenharmony_ci * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 71cb0ef41Sopenharmony_ci * sell copies of the Software, and to permit persons to whom the Software is 81cb0ef41Sopenharmony_ci * furnished to do so, subject to the following conditions: 91cb0ef41Sopenharmony_ci * 101cb0ef41Sopenharmony_ci * The above copyright notice and this permission notice shall be included in 111cb0ef41Sopenharmony_ci * all copies or substantial portions of the Software. 121cb0ef41Sopenharmony_ci * 131cb0ef41Sopenharmony_ci * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 141cb0ef41Sopenharmony_ci * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 151cb0ef41Sopenharmony_ci * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 161cb0ef41Sopenharmony_ci * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 171cb0ef41Sopenharmony_ci * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 181cb0ef41Sopenharmony_ci * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 191cb0ef41Sopenharmony_ci * IN THE SOFTWARE. 201cb0ef41Sopenharmony_ci */ 211cb0ef41Sopenharmony_ci 221cb0ef41Sopenharmony_ci#include <assert.h> 231cb0ef41Sopenharmony_ci 241cb0ef41Sopenharmony_ci#include "uv.h" 251cb0ef41Sopenharmony_ci#include "internal.h" 261cb0ef41Sopenharmony_ci#include "handle-inl.h" 271cb0ef41Sopenharmony_ci 281cb0ef41Sopenharmony_ci 291cb0ef41Sopenharmony_civoid uv__loop_watcher_endgame(uv_loop_t* loop, uv_handle_t* handle) { 301cb0ef41Sopenharmony_ci if (handle->flags & UV_HANDLE_CLOSING) { 311cb0ef41Sopenharmony_ci assert(!(handle->flags & UV_HANDLE_CLOSED)); 321cb0ef41Sopenharmony_ci handle->flags |= UV_HANDLE_CLOSED; 331cb0ef41Sopenharmony_ci uv__handle_close(handle); 341cb0ef41Sopenharmony_ci } 351cb0ef41Sopenharmony_ci} 361cb0ef41Sopenharmony_ci 371cb0ef41Sopenharmony_ci 381cb0ef41Sopenharmony_ci#define UV_LOOP_WATCHER_DEFINE(name, NAME) \ 391cb0ef41Sopenharmony_ci int uv_##name##_init(uv_loop_t* loop, uv_##name##_t* handle) { \ 401cb0ef41Sopenharmony_ci uv__handle_init(loop, (uv_handle_t*) handle, UV_##NAME); \ 411cb0ef41Sopenharmony_ci \ 421cb0ef41Sopenharmony_ci return 0; \ 431cb0ef41Sopenharmony_ci } \ 441cb0ef41Sopenharmony_ci \ 451cb0ef41Sopenharmony_ci \ 461cb0ef41Sopenharmony_ci int uv_##name##_start(uv_##name##_t* handle, uv_##name##_cb cb) { \ 471cb0ef41Sopenharmony_ci uv_loop_t* loop = handle->loop; \ 481cb0ef41Sopenharmony_ci uv_##name##_t* old_head; \ 491cb0ef41Sopenharmony_ci \ 501cb0ef41Sopenharmony_ci assert(handle->type == UV_##NAME); \ 511cb0ef41Sopenharmony_ci \ 521cb0ef41Sopenharmony_ci if (uv__is_active(handle)) \ 531cb0ef41Sopenharmony_ci return 0; \ 541cb0ef41Sopenharmony_ci \ 551cb0ef41Sopenharmony_ci if (cb == NULL) \ 561cb0ef41Sopenharmony_ci return UV_EINVAL; \ 571cb0ef41Sopenharmony_ci \ 581cb0ef41Sopenharmony_ci old_head = loop->name##_handles; \ 591cb0ef41Sopenharmony_ci \ 601cb0ef41Sopenharmony_ci handle->name##_next = old_head; \ 611cb0ef41Sopenharmony_ci handle->name##_prev = NULL; \ 621cb0ef41Sopenharmony_ci \ 631cb0ef41Sopenharmony_ci if (old_head) { \ 641cb0ef41Sopenharmony_ci old_head->name##_prev = handle; \ 651cb0ef41Sopenharmony_ci } \ 661cb0ef41Sopenharmony_ci \ 671cb0ef41Sopenharmony_ci loop->name##_handles = handle; \ 681cb0ef41Sopenharmony_ci \ 691cb0ef41Sopenharmony_ci handle->name##_cb = cb; \ 701cb0ef41Sopenharmony_ci uv__handle_start(handle); \ 711cb0ef41Sopenharmony_ci \ 721cb0ef41Sopenharmony_ci return 0; \ 731cb0ef41Sopenharmony_ci } \ 741cb0ef41Sopenharmony_ci \ 751cb0ef41Sopenharmony_ci \ 761cb0ef41Sopenharmony_ci int uv_##name##_stop(uv_##name##_t* handle) { \ 771cb0ef41Sopenharmony_ci uv_loop_t* loop = handle->loop; \ 781cb0ef41Sopenharmony_ci \ 791cb0ef41Sopenharmony_ci assert(handle->type == UV_##NAME); \ 801cb0ef41Sopenharmony_ci \ 811cb0ef41Sopenharmony_ci if (!uv__is_active(handle)) \ 821cb0ef41Sopenharmony_ci return 0; \ 831cb0ef41Sopenharmony_ci \ 841cb0ef41Sopenharmony_ci /* Update loop head if needed */ \ 851cb0ef41Sopenharmony_ci if (loop->name##_handles == handle) { \ 861cb0ef41Sopenharmony_ci loop->name##_handles = handle->name##_next; \ 871cb0ef41Sopenharmony_ci } \ 881cb0ef41Sopenharmony_ci \ 891cb0ef41Sopenharmony_ci /* Update the iterator-next pointer of needed */ \ 901cb0ef41Sopenharmony_ci if (loop->next_##name##_handle == handle) { \ 911cb0ef41Sopenharmony_ci loop->next_##name##_handle = handle->name##_next; \ 921cb0ef41Sopenharmony_ci } \ 931cb0ef41Sopenharmony_ci \ 941cb0ef41Sopenharmony_ci if (handle->name##_prev) { \ 951cb0ef41Sopenharmony_ci handle->name##_prev->name##_next = handle->name##_next; \ 961cb0ef41Sopenharmony_ci } \ 971cb0ef41Sopenharmony_ci if (handle->name##_next) { \ 981cb0ef41Sopenharmony_ci handle->name##_next->name##_prev = handle->name##_prev; \ 991cb0ef41Sopenharmony_ci } \ 1001cb0ef41Sopenharmony_ci \ 1011cb0ef41Sopenharmony_ci uv__handle_stop(handle); \ 1021cb0ef41Sopenharmony_ci \ 1031cb0ef41Sopenharmony_ci return 0; \ 1041cb0ef41Sopenharmony_ci } \ 1051cb0ef41Sopenharmony_ci \ 1061cb0ef41Sopenharmony_ci \ 1071cb0ef41Sopenharmony_ci void uv__##name##_invoke(uv_loop_t* loop) { \ 1081cb0ef41Sopenharmony_ci uv_##name##_t* handle; \ 1091cb0ef41Sopenharmony_ci \ 1101cb0ef41Sopenharmony_ci (loop)->next_##name##_handle = (loop)->name##_handles; \ 1111cb0ef41Sopenharmony_ci \ 1121cb0ef41Sopenharmony_ci while ((loop)->next_##name##_handle != NULL) { \ 1131cb0ef41Sopenharmony_ci handle = (loop)->next_##name##_handle; \ 1141cb0ef41Sopenharmony_ci (loop)->next_##name##_handle = handle->name##_next; \ 1151cb0ef41Sopenharmony_ci \ 1161cb0ef41Sopenharmony_ci handle->name##_cb(handle); \ 1171cb0ef41Sopenharmony_ci } \ 1181cb0ef41Sopenharmony_ci } 1191cb0ef41Sopenharmony_ci 1201cb0ef41Sopenharmony_ciUV_LOOP_WATCHER_DEFINE(prepare, PREPARE) 1211cb0ef41Sopenharmony_ciUV_LOOP_WATCHER_DEFINE(check, CHECK) 1221cb0ef41Sopenharmony_ciUV_LOOP_WATCHER_DEFINE(idle, IDLE) 123