mirror of
https://libwebsockets.org/repo/libwebsockets
synced 2024-11-22 00:57:52 +00:00
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/*
|
|
* libwebsockets - small server side websockets and web server implementation
|
|
*
|
|
* Copyright (C) 2010 - 2021 Andy Green <andy@warmcat.com>
|
|
*
|
|
* 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 <private-lib-core.h>
|
|
#include "private-lib-event-libs-poll.h"
|
|
|
|
static int
|
|
elops_foreign_thread_poll(struct lws_context *cx, int tsi)
|
|
{
|
|
struct lws_context_per_thread *pt = &cx->pt[tsi];
|
|
volatile struct lws_context_per_thread *vpt =
|
|
(volatile struct lws_context_per_thread *)pt;
|
|
|
|
/*
|
|
* To avoid mandating a specific threading library, we can check
|
|
* probabilistically by seeing if the lws default wait is still asleep
|
|
* at the time we are checking, if it is then we cannot be being called
|
|
* by the event loop loop thread.
|
|
*/
|
|
|
|
return vpt->inside_poll;
|
|
}
|
|
|
|
struct lws_event_loop_ops event_loop_ops_poll = {
|
|
.name = "poll",
|
|
|
|
.foreign_thread = elops_foreign_thread_poll,
|
|
|
|
.flags = LELOF_ISPOLL,
|
|
};
|
|
|
|
const lws_plugin_evlib_t evlib_poll = {
|
|
.hdr = {
|
|
"poll",
|
|
"lws_evlib_plugin",
|
|
"n/a",
|
|
LWS_PLUGIN_API_MAGIC
|
|
},
|
|
|
|
.ops = &event_loop_ops_poll
|
|
};
|