Function blockingOperationStarts

app/redis-6.2.6/src/server.c:2280–2285

void blockingOperationStarts() {
    if(!server.blocking_op_nesting++){
        updateCachedTime(0);
        server.blocked_last_cron = server.mstime;
    }
}

void blockingOperationEnds() {
    if(!(--server.blocking_op_nesting)){