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38 lines
840 B
C++
38 lines
840 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Arch/x86/CPU.h>
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#include <Kernel/Process.h>
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#include <Kernel/Time/TimeManagement.h>
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#include <limits.h>
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namespace Kernel {
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KResultOr<long> Process::sys$sysconf(int name)
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{
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switch (name) {
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case _SC_MONOTONIC_CLOCK:
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return 1;
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case _SC_NPROCESSORS_CONF:
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case _SC_NPROCESSORS_ONLN:
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return Processor::processor_count();
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case _SC_OPEN_MAX:
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return max_open_file_descriptors();
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case _SC_PAGESIZE:
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return PAGE_SIZE;
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case _SC_TTY_NAME_MAX:
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return TTY_NAME_MAX;
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case _SC_GETPW_R_SIZE_MAX:
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return 4096; // idk
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case _SC_CLK_TCK:
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return TimeManagement::the().ticks_per_second();
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default:
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return EINVAL;
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}
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}
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}
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