93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
#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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void redisLibevReadEvent(struct ev_loop *loop, ev_io *watcher, int revents) {
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((void)loop); ((void)revents);
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redisLibevEvents *e = watcher->data;
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redisAsyncHandleRead(e->context);
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}
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void redisLibevWriteEvent(struct ev_loop *loop, ev_io *watcher, int revents) {
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((void)loop); ((void)revents);
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redisLibevEvents *e = watcher->data;
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redisAsyncHandleWrite(e->context);
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}
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void redisLibevAddRead(void *privdata) {
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redisLibevEvents *e = privdata;
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if (!e->reading) {
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e->reading = 1;
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ev_io_start(e->loop,&e->rev);
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}
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}
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void redisLibevDelRead(void *privdata) {
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redisLibevEvents *e = privdata;
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if (e->reading) {
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e->reading = 0;
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ev_io_stop(e->loop,&e->rev);
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}
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}
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void redisLibevAddWrite(void *privdata) {
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redisLibevEvents *e = privdata;
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if (!e->writing) {
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e->writing = 1;
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ev_io_start(e->loop,&e->wev);
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}
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}
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void redisLibevDelWrite(void *privdata) {
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redisLibevEvents *e = privdata;
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if (e->writing) {
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e->writing = 0;
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ev_io_stop(e->loop,&e->wev);
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}
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}
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void redisLibevCleanup(void *privdata) {
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redisLibevEvents *e = 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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int redisLibevAttach(redisAsyncContext *ac, struct ev_loop *loop) {
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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->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 = malloc(sizeof(*e));
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e->context = ac;
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e->loop = loop;
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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->evAddRead = redisLibevAddRead;
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ac->evDelRead = redisLibevDelRead;
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ac->evAddWrite = redisLibevAddWrite;
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ac->evDelWrite = redisLibevDelWrite;
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ac->evCleanup = redisLibevCleanup;
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ac->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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