109 lines
3.9 KiB
C
109 lines
3.9 KiB
C
/*
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* Copyright (c) 2010-2011, Pieter Noordhuis <pcnoordhuis at gmail dot com>
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __HIREDIS_LIBEVENT_H__
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#define __HIREDIS_LIBEVENT_H__
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#include <event2/event.h>
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#include "../hiredis.h"
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#include "../async.h"
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typedef struct redisLibeventEvents {
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redisAsyncContext *context;
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struct event *rev, *wev;
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} redisLibeventEvents;
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static void redisLibeventReadEvent(int fd, short event, void *arg) {
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((void)fd); ((void)event);
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redisLibeventEvents *e = (redisLibeventEvents*)arg;
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redisAsyncHandleRead(e->context);
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}
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static void redisLibeventWriteEvent(int fd, short event, void *arg) {
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((void)fd); ((void)event);
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redisLibeventEvents *e = (redisLibeventEvents*)arg;
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redisAsyncHandleWrite(e->context);
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}
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static void redisLibeventAddRead(void *privdata) {
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redisLibeventEvents *e = (redisLibeventEvents*)privdata;
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event_add(e->rev,NULL);
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}
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static void redisLibeventDelRead(void *privdata) {
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redisLibeventEvents *e = (redisLibeventEvents*)privdata;
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event_del(e->rev);
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}
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static void redisLibeventAddWrite(void *privdata) {
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redisLibeventEvents *e = (redisLibeventEvents*)privdata;
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event_add(e->wev,NULL);
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}
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static void redisLibeventDelWrite(void *privdata) {
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redisLibeventEvents *e = (redisLibeventEvents*)privdata;
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event_del(e->wev);
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}
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static void redisLibeventCleanup(void *privdata) {
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redisLibeventEvents *e = (redisLibeventEvents*)privdata;
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event_free(e->rev);
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event_free(e->wev);
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free(e);
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}
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static int redisLibeventAttach(redisAsyncContext *ac, struct event_base *base) {
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redisContext *c = &(ac->c);
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redisLibeventEvents *e;
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/* Nothing should be attached when something is already attached */
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if (ac->ev.data != NULL)
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return REDIS_ERR;
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/* Create container for context and r/w events */
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e = (redisLibeventEvents*)malloc(sizeof(*e));
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e->context = ac;
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/* Register functions to start/stop listening for events */
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ac->ev.addRead = redisLibeventAddRead;
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ac->ev.delRead = redisLibeventDelRead;
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ac->ev.addWrite = redisLibeventAddWrite;
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ac->ev.delWrite = redisLibeventDelWrite;
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ac->ev.cleanup = redisLibeventCleanup;
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ac->ev.data = e;
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/* Initialize and install read/write events */
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e->rev = event_new(base, c->fd, EV_READ, redisLibeventReadEvent, e);
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e->wev = event_new(base, c->fd, EV_WRITE, redisLibeventWriteEvent, e);
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event_add(e->rev, NULL);
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event_add(e->wev, NULL);
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return REDIS_OK;
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}
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#endif
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