mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-23 00:00:06 +01:00
498a4e2bd7
wsi timeout, wsi hrtimer, sequencer timeout and vh-protocol timer all now participate on a single sorted us list. The whole idea of polling wakes is thrown out, poll waits ignore the timeout field and always use infinite timeouts. Introduce a public api that can schedule its own callback from the event loop with us resolution (usually ms is all the platform can do). Upgrade timeouts and sequencer timeouts to also be able to use us resolution. Introduce a prepared fakewsi in the pt, so we don't have to allocate one on the heap when we need it. Directly handle vh-protocol timer if LWS_MAX_SMP == 1
98 lines
3 KiB
C
98 lines
3 KiB
C
/*
|
|
* libwebsockets - small server side websockets and web server implementation
|
|
*
|
|
* Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation:
|
|
* version 2.1 of the License.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
* MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <core/private.h>
|
|
|
|
static int
|
|
rops_handle_POLLIN_pipe(struct lws_context_per_thread *pt, struct lws *wsi,
|
|
struct lws_pollfd *pollfd)
|
|
{
|
|
#if !defined(WIN32) && !defined(_WIN32)
|
|
char s[100];
|
|
int n;
|
|
|
|
/*
|
|
* discard the byte(s) that signaled us
|
|
* We really don't care about the number of bytes, but coverity
|
|
* thinks we should.
|
|
*/
|
|
n = read(wsi->desc.sockfd, s, sizeof(s));
|
|
(void)n;
|
|
if (n < 0)
|
|
return LWS_HPI_RET_PLEASE_CLOSE_ME;
|
|
#endif
|
|
|
|
#if defined(LWS_WITH_THREADPOOL)
|
|
/*
|
|
* threadpools that need to call for on_writable callbacks do it by
|
|
* marking the task as needing one for its wsi, then cancelling service.
|
|
*
|
|
* Each tsi will call this to perform the actual callback_on_writable
|
|
* from the correct service thread context
|
|
*/
|
|
lws_threadpool_tsi_context(pt->context, pt->tid);
|
|
#endif
|
|
|
|
/*
|
|
* the poll() wait, or the event loop for libuv etc is a
|
|
* process-wide resource that we interrupted. So let every
|
|
* protocol that may be interested in the pipe event know that
|
|
* it happened.
|
|
*/
|
|
if (lws_broadcast(pt, LWS_CALLBACK_EVENT_WAIT_CANCELLED, NULL, 0)) {
|
|
lwsl_info("closed in event cancel\n");
|
|
return LWS_HPI_RET_PLEASE_CLOSE_ME;
|
|
}
|
|
|
|
return LWS_HPI_RET_HANDLED;
|
|
}
|
|
|
|
struct lws_role_ops role_ops_pipe = {
|
|
/* role name */ "pipe",
|
|
/* alpn id */ NULL,
|
|
/* check_upgrades */ NULL,
|
|
/* init_context */ NULL,
|
|
/* init_vhost */ NULL,
|
|
/* destroy_vhost */ NULL,
|
|
/* periodic_checks */ NULL,
|
|
/* service_flag_pending */ NULL,
|
|
/* handle_POLLIN */ rops_handle_POLLIN_pipe,
|
|
/* handle_POLLOUT */ NULL,
|
|
/* perform_user_POLLOUT */ NULL,
|
|
/* callback_on_writable */ NULL,
|
|
/* tx_credit */ NULL,
|
|
/* write_role_protocol */ NULL,
|
|
/* encapsulation_parent */ NULL,
|
|
/* alpn_negotiated */ NULL,
|
|
/* close_via_role_protocol */ NULL,
|
|
/* close_role */ NULL,
|
|
/* close_kill_connection */ NULL,
|
|
/* destroy_role */ NULL,
|
|
/* adoption_bind */ NULL,
|
|
/* client_bind */ NULL,
|
|
/* adoption_cb clnt, srv */ { 0, 0 },
|
|
/* rx_cb clnt, srv */ { 0, 0 },
|
|
/* writeable cb clnt, srv */ { 0, 0 },
|
|
/* close cb clnt, srv */ { 0, 0 },
|
|
/* protocol_bind_cb c,s */ { 0, 0 },
|
|
/* protocol_unbind_cb c,s */ { 0, 0 },
|
|
/* file_handle */ 1,
|
|
};
|