118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
#ifndef __HIREDIS_LIBEV_H__
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#define __HIREDIS_LIBEV_H__
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#include <stdlib.h>
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#include <sys/types.h>
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#include <ev.h>
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#include "../hiredis.h"
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#include "../async.h"
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typedef struct redisLibevEvents {
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redisAsyncContext *context;
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struct ev_loop *loop;
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int reading, writing;
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ev_io rev, wev;
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} redisLibevEvents;
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static void redisLibevReadEvent(EV_P_ ev_io *watcher, int revents) {
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#if EV_MULTIPLICITY
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((void)loop);
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#endif
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((void)revents);
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redisLibevEvents *e = (redisLibevEvents*)watcher->data;
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redisAsyncHandleRead(e->context);
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}
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static void redisLibevWriteEvent(EV_P_ ev_io *watcher, int revents) {
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#if EV_MULTIPLICITY
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((void)loop);
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#endif
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((void)revents);
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redisLibevEvents *e = (redisLibevEvents*)watcher->data;
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redisAsyncHandleWrite(e->context);
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}
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static void redisLibevAddRead(void *privdata) {
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redisLibevEvents *e = (redisLibevEvents*)privdata;
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struct ev_loop *loop = e->loop;
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((void)loop);
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if (!e->reading) {
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e->reading = 1;
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ev_io_start(EV_A_ &e->rev);
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}
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}
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static void redisLibevDelRead(void *privdata) {
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redisLibevEvents *e = (redisLibevEvents*)privdata;
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struct ev_loop *loop = e->loop;
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((void)loop);
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if (e->reading) {
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e->reading = 0;
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ev_io_stop(EV_A_ &e->rev);
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}
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}
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static void redisLibevAddWrite(void *privdata) {
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redisLibevEvents *e = (redisLibevEvents*)privdata;
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struct ev_loop *loop = e->loop;
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((void)loop);
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if (!e->writing) {
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e->writing = 1;
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ev_io_start(EV_A_ &e->wev);
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}
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}
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static void redisLibevDelWrite(void *privdata) {
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redisLibevEvents *e = (redisLibevEvents*)privdata;
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struct ev_loop *loop = e->loop;
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((void)loop);
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if (e->writing) {
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e->writing = 0;
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ev_io_stop(EV_A_ &e->wev);
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}
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}
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static void redisLibevCleanup(void *privdata) {
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redisLibevEvents *e = (redisLibevEvents*)privdata;
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redisLibevDelRead(privdata);
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redisLibevDelWrite(privdata);
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free(e);
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}
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static int redisLibevAttach(EV_P_ redisAsyncContext *ac) {
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redisContext *c = &(ac->c);
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redisLibevEvents *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 = (redisLibevEvents*)malloc(sizeof(*e));
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e->context = ac;
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#if EV_MULTIPLICITY
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e->loop = loop;
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#else
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e->loop = NULL;
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#endif
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e->reading = e->writing = 0;
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e->rev.data = e;
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e->wev.data = e;
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/* Register functions to start/stop listening for events */
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ac->ev.addRead = redisLibevAddRead;
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ac->ev.delRead = redisLibevDelRead;
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ac->ev.addWrite = redisLibevAddWrite;
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ac->ev.delWrite = redisLibevDelWrite;
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ac->ev.cleanup = redisLibevCleanup;
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ac->ev.data = e;
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/* Initialize read/write events */
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ev_io_init(&e->rev,redisLibevReadEvent,c->fd,EV_READ);
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ev_io_init(&e->wev,redisLibevWriteEvent,c->fd,EV_WRITE);
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return REDIS_OK;
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}
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#endif
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