ladybird/Kernel/Syscalls/times.cpp
Andreas Kling 48a0b31c47 Kernel: Make copy_{from,to}_user() return KResult and use TRY()
This makes EFAULT propagation flow much more naturally. :^)
2021-09-05 17:38:37 +02:00

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631 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Process.h>
namespace Kernel {
KResultOr<FlatPtr> Process::sys$times(Userspace<tms*> user_times)
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
REQUIRE_PROMISE(stdio);
tms times = {};
times.tms_utime = m_ticks_in_user;
times.tms_stime = m_ticks_in_kernel;
times.tms_cutime = m_ticks_in_user_for_dead_children;
times.tms_cstime = m_ticks_in_kernel_for_dead_children;
TRY(copy_to_user(user_times, &times));
return TimeManagement::the().uptime_ms() & 0x7fffffff;
}
}