Luna/kernel/src/sys/alarm.cpp

#include "Pledge.h"
#include "sys/Syscall.h"
#include "thread/Scheduler.h"

Result<u64> sys_alarm(Registers*, SyscallArgs args)
{
    unsigned int seconds = (unsigned int)args[0];

    auto* current = Scheduler::current();

    TRY(check_pledge(current, Promise::p_stdio));

    u64 time_left = current->alarm_ticks_left;

    current->alarm_ticks_left = seconds * 1000;

    return time_left * 1000;
}