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Redis Cluster: process node to node CLUSTERMSG_TYPE_PUBLISH messages and send it to the local clients.

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This commit is contained in:
antirez 2011-10-07 16:34:16 +02:00
parent c563ce463b
commit d38ef52085
2 changed files with 28 additions and 0 deletions
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27
src/cluster.c
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@ -513,6 +513,8 @@ int clusterProcessPacket(clusterLink *link) {
redisLog(REDIS_DEBUG,"--- Processing packet of type %d, %lu bytes",
type, (unsigned long) totlen);
/* Perform sanity checks */
if (totlen < 8) return 1;
if (totlen > sdslen(link->rcvbuf)) return 1;
if (type == CLUSTERMSG_TYPE_PING || type == CLUSTERMSG_TYPE_PONG ||
@ -531,7 +533,16 @@ int clusterProcessPacket(clusterLink *link) {
explen += sizeof(clusterMsgDataFail);
if (totlen != explen) return 1;
}
if (type == CLUSTERMSG_TYPE_PUBLISH) {
uint32_t explen = sizeof(clusterMsg)-sizeof(union clusterMsgData);
explen += sizeof(clusterMsgDataPublish) +
ntohl(hdr->data.publish.msg.channel_len) +
ntohl(hdr->data.publish.msg.message_len);
if (totlen != explen) return 1;
}
/* Ready to process the packet. Dispatch by type. */
sender = clusterLookupNode(hdr->sender);
if (type == CLUSTERMSG_TYPE_PING || type == CLUSTERMSG_TYPE_MEET) {
int update_config = 0;
@ -665,6 +676,22 @@ int clusterProcessPacket(clusterLink *link) {
clusterUpdateState();
clusterSaveConfigOrDie();
}
} else if (type == CLUSTERMSG_TYPE_PUBLISH) {
robj *channel, *message;
uint32_t channel_len, message_len;
/* Don't bother creating useless objects if there are no Pub/Sub subscribers. */
if (dictSize(server.pubsub_channels) || listLength(server.pubsub_patterns)) {
channel_len = ntohl(hdr->data.publish.msg.channel_len);
message_len = ntohl(hdr->data.publish.msg.message_len);
channel = createStringObject(
(char*)hdr->data.publish.msg.bulk_data,channel_len);
message = createStringObject(
(char*)hdr->data.publish.msg.bulk_data+channel_len, message_len);
pubsubPublishMessage(channel,message);
decrRefCount(channel);
decrRefCount(message);
}
} else {
redisLog(REDIS_WARNING,"Received unknown packet type: %d", type);
}

1
src/redis.h
View File

@ -943,6 +943,7 @@ int pubsubUnsubscribeAllChannels(redisClient *c, int notify);
int pubsubUnsubscribeAllPatterns(redisClient *c, int notify);
void freePubsubPattern(void *p);
int listMatchPubsubPattern(void *a, void *b);
int pubsubPublishMessage(robj *channel, robj *message);
/* Configuration */
void loadServerConfig(char *filename);