Function updateStatsOnUnblock

app/redis-6.2.6/src/blocked.c:111–119

This function is called after a client has finished a blocking operation * in order to update the total command duration, log the command into * the Slow log if needed, and log the reply duration event if needed. */

 * in order to update the total command duration, log the command into
 * the Slow log if needed, and log the reply duration event if needed. */
void updateStatsOnUnblock(client *c, long blocked_us, long reply_us){
    const ustime_t total_cmd_duration = c->duration + blocked_us + reply_us;
    c->lastcmd->microseconds += total_cmd_duration;

    /* Log the command into the Slow log if needed. */
    slowlogPushCurrentCommand(c, c->lastcmd, total_cmd_duration);
    /* Log the reply duration event. */
    latencyAddSampleIfNeeded("command-unblocking",reply_us/1000);
}

/* This function is called in the beforeSleep() function of the event loop
 * in order to process the pending input buffer of clients that were