Function handleBlockedClientsTimeout

app/redis-6.2.6/src/timeout.c:136–154

This function is called in beforeSleep() in order to unblock clients * that are waiting in blocking operations with a timeout set. */

/* This function is called in beforeSleep() in order to unblock clients
 * that are waiting in blocking operations with a timeout set. */
void handleBlockedClientsTimeout(void) {
    if (raxSize(server.clients_timeout_table) == 0) return;
    uint64_t now = mstime();
    raxIterator ri;
    raxStart(&ri,server.clients_timeout_table);
    raxSeek(&ri,"^",NULL,0);

    while(raxNext(&ri)) {
        uint64_t timeout;
        client *c;
        decodeTimeoutKey(ri.key,&timeout,&c);
        if (timeout >= now) break; /* All the timeouts are in the future. */
        c->flags &= ~CLIENT_IN_TO_TABLE;
        checkBlockedClientTimeout(c,now);
        raxRemove(server.clients_timeout_table,ri.key,ri.key_len,NULL);
        raxSeek(&ri,"^",NULL,0);
    }
    raxStop(&ri);
}

/* Get a timeout value from an object and store it into 'timeout'.
 * The final timeout is always stored as milliseconds as a time where the