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/*
* 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
};
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