/* Unblock a client calling the right function depending on the kind
* of operation the client is blocking for.
* 不阻塞客户端
* 取消给定的客户端的阻塞状态*/
void unblockClient(redisClient *c) {
if (c->btype == REDIS_BLOCKED_LIST) {
unblockClientWaitingData(c);
} else if (c->btype == REDIS_BLOCKED_WAIT) {
unblockClientWaitingReplicas(c);
} else {
redisPanic("Unknown btype in unblockClient().");
}
/* Clear the flags, and put the client in the unblocked list so that
* we'll process new commands in its query buffer ASAP. */
c->flags &= ~REDIS_BLOCKED;
c->flags |= REDIS_UNBLOCKED;
c->btype = REDIS_BLOCKED_NONE;
server.bpop_blocked_clients--;
listAddNodeTail(server.unblocked_clients,c);
}
/* Unblock a client calling the right function depending on the kind
* of operation the client is blocking for. */
void unblockClient(client *c) {
if (c->btype == BLOCKED_LIST) {
unblockClientWaitingData(c);
} else if (c->btype == BLOCKED_WAIT) {
unblockClientWaitingReplicas(c);
} else {
serverPanic("Unknown btype in unblockClient().");
}
/* Clear the flags, and put the client in the unblocked list so that
* we'll process new commands in its query buffer ASAP. */
c->flags &= ~CLIENT_BLOCKED;
c->btype = BLOCKED_NONE;
c->vel->bpop_blocked_clients--;
/* The client may already be into the unblocked list because of a previous
* blocking operation, don't add back it into the list multiple times. */
if (!(c->flags & CLIENT_UNBLOCKED)) {
c->flags |= CLIENT_UNBLOCKED;
dlistAddNodeTail(c->vel->unblocked_clients,c);
}
}
