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
49struct lws_signal_watcher_libuv {
50	uv_signal_t watcher;
51	struct lws_context *context;
52};
53
54struct 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
69struct lws_context_eventlibs_libuv {
70	uv_loop_t			loop;
71};
72
73struct lws_io_watcher_libuv {
74	uv_poll_t			*pwatcher;
75	struct lws_context		*context;
76	uint8_t				actual_events;
77};
78
79struct lws_wsi_eventlibs_libuv {
80	struct lws_io_watcher_libuv	w_read;
81};
82
83uv_loop_t *
84lws_uv_getloop(struct lws_context *context, int tsi);
85
86int
87lws_uv_plugins_init(struct lws_context *context, const char * const *d);
88
89int
90lws_uv_plugins_destroy(struct lws_context *context);
91