82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation:
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include <core/private.h>
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static int
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rops_handle_POLLIN_pipe(struct lws_context_per_thread *pt, struct lws *wsi,
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struct lws_pollfd *pollfd)
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{
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#if !defined(WIN32) && !defined(_WIN32)
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char s[100];
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int n;
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/*
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* discard the byte(s) that signaled us
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* We really don't care about the number of bytes, but coverity
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* thinks we should.
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*/
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n = read(wsi->desc.sockfd, s, sizeof(s));
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(void)n;
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if (n < 0)
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return LWS_HPI_RET_PLEASE_CLOSE_ME;
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#endif
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/*
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* the poll() wait, or the event loop for libuv etc is a
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* process-wide resource that we interrupted. So let every
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* protocol that may be interested in the pipe event know that
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* it happened.
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*/
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if (lws_broadcast(wsi->context, LWS_CALLBACK_EVENT_WAIT_CANCELLED,
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NULL, 0)) {
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lwsl_info("closed in event cancel\n");
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return LWS_HPI_RET_PLEASE_CLOSE_ME;
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}
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return LWS_HPI_RET_HANDLED;
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}
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struct lws_role_ops role_ops_pipe = {
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/* role name */ "pipe",
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/* alpn id */ NULL,
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/* check_upgrades */ NULL,
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/* init_context */ NULL,
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/* init_vhost */ NULL,
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/* destroy_vhost */ NULL,
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/* periodic_checks */ NULL,
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/* service_flag_pending */ NULL,
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/* handle_POLLIN */ rops_handle_POLLIN_pipe,
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/* handle_POLLOUT */ NULL,
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/* perform_user_POLLOUT */ NULL,
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/* callback_on_writable */ NULL,
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/* tx_credit */ NULL,
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/* write_role_protocol */ NULL,
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/* encapsulation_parent */ NULL,
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/* alpn_negotiated */ NULL,
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/* close_via_role_protocol */ NULL,
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/* close_role */ NULL,
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/* close_kill_connection */ NULL,
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/* destroy_role */ NULL,
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/* writeable cb clnt, srv */ { 0, 0 },
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/* close cb clnt, srv */ { 0, 0 },
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/* file_handle */ 1,
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};
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