forked from acouzens/open5gs
113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
/*
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* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "core-config-private.h"
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if HAVE_EVENTFD
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#include <sys/eventfd.h>
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#endif
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#include "ogs-core.h"
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#include "ogs-poll-private.h"
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static void ogs_drain_pollset(short when, ogs_socket_t fd, void *data);
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void ogs_notify_init(ogs_pollset_t *pollset)
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{
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#if !defined(HAVE_EVENTFD)
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int rc;
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#endif
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ogs_assert(pollset);
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#if defined(HAVE_EVENTFD)
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pollset->notify.fd[0] = eventfd(0, 0);
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ogs_assert(pollset->notify.fd[0] != INVALID_SOCKET);
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#else
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rc = ogs_socketpair(AF_SOCKPAIR, SOCK_STREAM, 0, pollset->notify.fd);
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ogs_assert(rc == OGS_OK);
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#endif
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pollset->notify.poll = ogs_pollset_add(pollset, OGS_POLLIN,
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pollset->notify.fd[0], ogs_drain_pollset, NULL);
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ogs_assert(pollset->notify.poll);
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}
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void ogs_notify_final(ogs_pollset_t *pollset)
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{
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ogs_assert(pollset);
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ogs_pollset_remove(pollset->notify.poll);
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ogs_closesocket(pollset->notify.fd[0]);
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#if !defined(HAVE_EVENTFD)
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ogs_closesocket(pollset->notify.fd[1]);
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#endif
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}
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int ogs_notify_pollset(ogs_pollset_t *pollset)
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{
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ssize_t r;
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#if defined(HAVE_EVENTFD)
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uint64_t msg = 1;
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#else
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char buf[1];
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buf[0] = 0;
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#endif
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ogs_assert(pollset);
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#if defined(HAVE_EVENTFD)
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r = write(pollset->notify.fd[0], (void*)&msg, sizeof(msg));
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#else
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r = send(pollset->notify.fd[1], buf, 1, 0);
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#endif
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if (r < 0) {
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ogs_log_message(OGS_LOG_ERROR, ogs_socket_errno, "notify failed");
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return OGS_ERROR;
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}
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return OGS_OK;
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}
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static void ogs_drain_pollset(short when, ogs_socket_t fd, void *data)
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{
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ssize_t r;
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#if defined(HAVE_EVENTFD)
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uint64_t msg;
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#else
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unsigned char buf[1024];
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#endif
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ogs_assert(when == OGS_POLLIN);
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#if defined(HAVE_EVENTFD)
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r = read(fd, (char *)&msg, sizeof(msg));
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#else
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r = recv(fd, (char *)buf, sizeof(buf), 0);
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#endif
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if (r < 0) {
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ogs_log_message(OGS_LOG_ERROR, ogs_socket_errno, "drain failed");
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}
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}
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