| /* 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 "uv.h" |
| #include "tree.h" |
| #include "internal.h" |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| |
| int uv__loop_init(uv_loop_t* loop, int default_loop) { |
| unsigned int i; |
| |
| uv__signal_global_once_init(); |
| |
| memset(loop, 0, sizeof(*loop)); |
| RB_INIT(&loop->timer_handles); |
| ngx_queue_init(&loop->wq); |
| ngx_queue_init(&loop->active_reqs); |
| ngx_queue_init(&loop->idle_handles); |
| ngx_queue_init(&loop->async_handles); |
| ngx_queue_init(&loop->check_handles); |
| ngx_queue_init(&loop->prepare_handles); |
| ngx_queue_init(&loop->handle_queue); |
| |
| loop->nfds = 0; |
| loop->watchers = NULL; |
| loop->nwatchers = 0; |
| ngx_queue_init(&loop->pending_queue); |
| ngx_queue_init(&loop->watcher_queue); |
| |
| loop->closing_handles = NULL; |
| loop->time = uv__hrtime() / 1000000; |
| uv__async_init(&loop->async_watcher); |
| loop->signal_pipefd[0] = -1; |
| loop->signal_pipefd[1] = -1; |
| loop->backend_fd = -1; |
| loop->emfile_fd = -1; |
| |
| loop->timer_counter = 0; |
| loop->stop_flag = 0; |
| |
| if (uv__platform_loop_init(loop, default_loop)) |
| return -1; |
| |
| uv_signal_init(loop, &loop->child_watcher); |
| uv__handle_unref(&loop->child_watcher); |
| loop->child_watcher.flags |= UV__HANDLE_INTERNAL; |
| |
| for (i = 0; i < ARRAY_SIZE(loop->process_handles); i++) |
| ngx_queue_init(loop->process_handles + i); |
| |
| if (uv_mutex_init(&loop->wq_mutex)) |
| abort(); |
| |
| if (uv_async_init(loop, &loop->wq_async, uv__work_done)) |
| abort(); |
| |
| uv__handle_unref(&loop->wq_async); |
| loop->wq_async.flags |= UV__HANDLE_INTERNAL; |
| |
| return 0; |
| } |
| |
| |
| void uv__loop_delete(uv_loop_t* loop) { |
| uv__signal_loop_cleanup(loop); |
| uv__platform_loop_delete(loop); |
| uv__async_stop(loop, &loop->async_watcher); |
| |
| if (loop->emfile_fd != -1) { |
| close(loop->emfile_fd); |
| loop->emfile_fd = -1; |
| } |
| |
| if (loop->backend_fd != -1) { |
| close(loop->backend_fd); |
| loop->backend_fd = -1; |
| } |
| |
| uv_mutex_lock(&loop->wq_mutex); |
| assert(ngx_queue_empty(&loop->wq) && "thread pool work queue not empty!"); |
| uv_mutex_unlock(&loop->wq_mutex); |
| uv_mutex_destroy(&loop->wq_mutex); |
| |
| #if 0 |
| assert(ngx_queue_empty(&loop->pending_queue)); |
| assert(ngx_queue_empty(&loop->watcher_queue)); |
| assert(loop->nfds == 0); |
| #endif |
| |
| free(loop->watchers); |
| loop->watchers = NULL; |
| loop->nwatchers = 0; |
| } |