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Keyspace events: it is now possible to select subclasses of events.

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When keyspace events are enabled, the overhead is not sever but
noticeable, so this commit introduces the ability to select subclasses
of events in order to avoid to generate events the user is not
interested in.

The events can be selected using redis.conf or CONFIG SET / GET.
This commit is contained in:
antirez
2013-01-25 13:19:08 +01:00
parent 1c0c551776
commit fce016d31b
14 changed files with 237 additions and 108 deletions
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13
src/db.c
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@ -240,7 +240,8 @@ void delCommand(redisClient *c) {
for (j = 1; j < c->argc; j++) {
if (dbDelete(c->db,c->argv[j])) {
signalModifiedKey(c->db,c->argv[j]);
notifyKeyspaceEvent("del",c->argv[j],c->db->id);
notifyKeyspaceEvent(REDIS_NOTIFY_GENERIC,
"del",c->argv[j],c->db->id);
server.dirty++;
deleted++;
}
@ -392,8 +393,10 @@ void renameGenericCommand(redisClient *c, int nx) {
dbDelete(c->db,c->argv[1]);
signalModifiedKey(c->db,c->argv[1]);
signalModifiedKey(c->db,c->argv[2]);
notifyKeyspaceEvent("rename_from",c->argv[1],c->db->id);
notifyKeyspaceEvent("rename_to",c->argv[2],c->db->id);
notifyKeyspaceEvent(REDIS_NOTIFY_GENERIC,"rename_from",
c->argv[1],c->db->id);
notifyKeyspaceEvent(REDIS_NOTIFY_GENERIC,"rename_to",
c->argv[2],c->db->id);
server.dirty++;
addReply(c,nx ? shared.cone : shared.ok);
}
@ -587,14 +590,14 @@ void expireGenericCommand(redisClient *c, long long basetime, int unit) {
rewriteClientCommandVector(c,2,aux,key);
decrRefCount(aux);
signalModifiedKey(c->db,key);
notifyKeyspaceEvent("del",key,c->db->id);
notifyKeyspaceEvent(REDIS_NOTIFY_GENERIC,"del",key,c->db->id);
addReply(c, shared.cone);
return;
} else {
setExpire(c->db,key,when);
addReply(c,shared.cone);
signalModifiedKey(c->db,key);
notifyKeyspaceEvent("expire",key,c->db->id);
notifyKeyspaceEvent(REDIS_NOTIFY_GENERIC,"expire",key,c->db->id);
server.dirty++;
return;
}