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May 26, 2011 18:36
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Example of pipelining with async hiredis
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/* Code borrowed from hiredis examples */ | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <signal.h> | |
#include "hiredis.h" | |
#include "async.h" | |
#include "adapters/ae.h" | |
/* Put event loop in the global scope, so it can be explicitly stopped */ | |
static aeEventLoop *loop; | |
void getCallback2(redisAsyncContext *c, void *r, void *privdata) { | |
redisReply *reply = r; | |
if (reply == NULL) return; | |
printf("argv[%s]: %s\n", (char*)privdata, reply->str); | |
/* Disconnect after receiving the reply to GET */ | |
redisAsyncDisconnect(c); | |
} | |
void getCallback1(redisAsyncContext *c, void *r, void *privdata) { | |
redisReply *reply = r; | |
if (reply == NULL) return; | |
printf("argv[%s]: %s\n", (char*)privdata, reply->str); | |
redisAsyncCommand(c, NULL, NULL, "HINCRBY key field %d", 5 ); | |
redisAsyncCommand(c, NULL, NULL, "HINCRBY key field %d", 5 ); | |
redisAsyncCommand(c, NULL, NULL, "HINCRBY key field %d", 5 ); | |
redisAsyncCommand(c, getCallback2, (char *)"end", "HGET key field"); | |
} | |
void connectCallback(const redisAsyncContext *c) { | |
((void)c); | |
printf("connected...\n"); | |
} | |
void disconnectCallback(const redisAsyncContext *c, int status) { | |
if (status != REDIS_OK) { | |
printf("Error: %s\n", c->errstr); | |
} | |
printf("disconnected...\n"); | |
aeStop(loop); | |
} | |
int main ( int argc, char *argv[] ) { | |
signal(SIGPIPE, SIG_IGN); | |
redisAsyncContext *c = redisAsyncConnect("127.0.0.1", 6379); | |
if (c->err) { | |
/* Let *c leak for now... */ | |
printf("Error: %s\n", c->errstr); | |
return 1; | |
} | |
loop = aeCreateEventLoop(); | |
redisAeAttach(loop, c); | |
redisAsyncSetConnectCallback(c,connectCallback); | |
redisAsyncSetDisconnectCallback(c,disconnectCallback); | |
redisAsyncCommand(c, NULL, NULL, "HSET key field %d", 0 ); | |
redisAsyncCommand(c, NULL, NULL, "HINCRBY key field %d", 5 ); | |
redisAsyncCommand(c, NULL, NULL, "HINCRBY key field %d", 5 ); | |
redisAsyncCommand(c, getCallback1, (char *)"end", "HGET key field"); | |
aeMain(loop); | |
return 0; | |
} |
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Is the pipelining possible in asynchronous mode also?
I only see
redisAppendCommand
for synchronous mode.