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Added a new API to replicate an additional command after the replication of the currently executed command, in order to propagte the LPUSH originating from RPOPLPUSH and indirectly by BRPOPLPUSH.

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This commit is contained in:
antirez
2012-02-28 18:03:08 +01:00
parent d8b1228bf6
commit eeb34eff52
3 changed files with 71 additions and 22 deletions
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26
src/redis.c
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@ -962,6 +962,7 @@ void initServerConfig() {
populateCommandTable();
server.delCommand = lookupCommandByCString("del");
server.multiCommand = lookupCommandByCString("multi");
server.lpushCommand = lookupCommandByCString("lpush");
/* Slow log */
server.slowlog_log_slower_than = REDIS_SLOWLOG_LOG_SLOWER_THAN;
@ -1192,6 +1193,20 @@ void propagate(struct redisCommand *cmd, int dbid, robj **argv, int argc,
replicationFeedSlaves(server.slaves,dbid,argv,argc);
}
/* Used inside commands to propatate an additional command if needed. */
void alsoPropagate(struct redisCommand *cmd, int dbid, robj **argv, int argc,
int target)
{
propagatedItem *pi = &server.also_propagate;
redisAssert(pi->target == REDIS_PROPAGATE_NONE);
pi->cmd = cmd;
pi->dbid = dbid;
pi->argv = argv;
pi->argc = argc;
pi->target = target;
}
/* Call() is the core of Redis execution of a command */
void call(redisClient *c, int flags) {
long long dirty, start = ustime(), duration;
@ -1202,6 +1217,7 @@ void call(redisClient *c, int flags) {
replicationFeedMonitors(server.monitors,c->db->id,c->argv,c->argc);
/* Call the command. */
server.also_propagate.target = REDIS_PROPAGATE_NONE;
dirty = server.dirty;
c->cmd->proc(c);
dirty = server.dirty-dirty;
@ -1232,6 +1248,16 @@ void call(redisClient *c, int flags) {
if (flags != REDIS_PROPAGATE_NONE)
propagate(c->cmd,c->db->id,c->argv,c->argc,flags);
}
/* Commands such as LPUSH or BRPOPLPUSH may propagate an additional
* PUSH command. */
if (server.also_propagate.target != REDIS_PROPAGATE_NONE) {
int j;
propagatedItem *pi = &server.also_propagate;
propagate(pi->cmd, pi->dbid, pi->argv, pi->argc, pi->target);
for (j = 0; j < pi->argc; j++) decrRefCount(pi->argv[j]);
zfree(pi->argv);
}
server.stat_numcommands++;
}