39 lines
832 B
C++
39 lines
832 B
C++
#include "Pledge.h"
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#include "memory/MemoryManager.h"
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#include "sys/Syscall.h"
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#include "thread/Clock.h"
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#include "thread/Scheduler.h"
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#include <bits/clockid.h>
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#include <bits/timespec.h>
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Result<u64> sys_clock_gettime(Registers*, SyscallArgs args)
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{
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clockid_t id = (clockid_t)args[0];
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struct timespec* ts = (struct timespec*)args[1];
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auto* current = Scheduler::current();
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TRY(check_pledge(current, Promise::p_stdio));
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Clock* clock;
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switch (id)
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{
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case CLOCK_MONOTONIC: {
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clock = &g_monotonic_clock;
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break;
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}
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case CLOCK_REALTIME: {
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clock = &g_realtime_clock;
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break;
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}
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default: return err(EINVAL);
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}
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struct timespec time;
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clock->get_time(time);
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if (!MemoryManager::copy_to_user_typed(ts, &time)) return err(EFAULT);
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return 0;
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}
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