1 /* 2 * libwebsockets - small server side websockets and web server implementation 3 * 4 * Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com> 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 22 * IN THE SOFTWARE. 23 */ 24 25 #include <uv.h> 26 27 /* 28 * libuv's async destroy cb means that asking to close something doesn't mean 29 * you can destroy it or parent things until after the close completes. 30 * 31 * So we must reference-count creation and close completions with libuv. 32 * 33 * All "static" (per-pt or per-context) uv handles must 34 * 35 * - have their .data set to point to the context 36 * 37 * - contribute to context->uv_count_static_asset_handles 38 * counting 39 */ 40 #define LWS_UV_REFCOUNT_STATIC_HANDLE_NEW(_x, _pt) \ 41 { uv_handle_t *_uht = (uv_handle_t *)(_x); _uht->data = _pt; \ 42 _pt->count_event_loop_static_asset_handles++; } 43 #define LWS_UV_REFCOUNT_STATIC_HANDLE_TO_PT(_x) \ 44 ((struct lws_context_per_thread *)((uv_handle_t *)((_x)->data))) 45 #define LWS_UV_REFCOUNT_STATIC_HANDLE_DESTROYED(_x) \ 46 (--(LWS_UV_REFCOUNT_STATIC_HANDLE_TO_PT(_x)-> \ 47 count_event_loop_static_asset_handles)) 48 49 struct lws_signal_watcher_libuv { 50 uv_signal_t watcher; 51 struct lws_context *context; 52 }; 53 54 struct lws_pt_eventlibs_libuv { 55 uv_loop_t *io_loop; 56 struct lws_context_per_thread *pt; 57 uv_signal_t signals[8]; 58 uv_timer_t sultimer; 59 uv_idle_t idle; 60 61 uv_thread_t uv_thread; 62 63 struct lws_signal_watcher_libuv w_sigint; 64 int extant_handles; 65 66 char thread_valid; 67 }; 68 69 struct lws_context_eventlibs_libuv { 70 uv_loop_t loop; 71 }; 72 73 struct lws_io_watcher_libuv { 74 uv_poll_t *pwatcher; 75 struct lws_context *context; 76 uint8_t actual_events; 77 }; 78 79 struct lws_wsi_eventlibs_libuv { 80 struct lws_io_watcher_libuv w_read; 81 }; 82 83 uv_loop_t * 84 lws_uv_getloop(struct lws_context *context, int tsi); 85 86 int 87 lws_uv_plugins_init(struct lws_context *context, const char * const *d); 88 89 int 90 lws_uv_plugins_destroy(struct lws_context *context); 91