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Introduced three client limit classes: normal, slave, pubsub

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antirez 2012-01-17 12:43:01 +01:00
parent b7a33b7322
commit edfaedafb0
2 changed files with 21 additions and 0 deletions
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15
src/networking.c
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@ -1149,3 +1149,18 @@ unsigned long getClientOutputBufferMemoryUsage(redisClient *c) {
return c->reply_bytes + (list_item_size*listLength(c->reply));
}
/* Get the class of a client, used in order to envorce limits to different
* classes of clients.
*
* The function will return one of the following:
* REDIS_CLIENT_LIMIT_CLASS_NORMAL -> Normal client
* REDIS_CLIENT_LIMIT_CLASS_SLAVE -> Slave or client executing MONITOR command
* REDIS_CLIENT_LIMIT_CLASS_PUBSUB -> Client subscribed to Pub/Sub channels
*/
int getClientLimitClass(redisClient *c) {
if (c->flags & REDIS_SLAVE) return REDIS_CLIENT_LIMIT_CLASS_SLAVE;
if (dictSize(c->pubsub_channels) || listLength(c->pubsub_patterns))
return REDIS_CLIENT_LIMIT_CLASS_PUBSUB;
return REDIS_CLIENT_LIMIT_CLASS_NORMAL;
}

6
src/redis.h
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@ -146,6 +146,12 @@
#define REDIS_REQ_INLINE 1
#define REDIS_REQ_MULTIBULK 2
/* Client classes for client limits, currently used only for
* the max-client-output-buffer limit implementation. */
#define REDIS_CLIENT_LIMIT_CLASS_NORMAL 0
#define REDIS_CLIENT_LIMIT_CLASS_SLAVE 1
#define REDIS_CLIENT_LIMIT_CLASS_PUBSUB 2
/* Slave replication state - slave side */
#define REDIS_REPL_NONE 0 /* No active replication */
#define REDIS_REPL_CONNECT 1 /* Must connect to master */