mirror of
https://github.com/matrix-construct/construct
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49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_PROF_SYSTEM_H
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namespace ircd::prof
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{
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struct system;
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using read_closure = std::function<void (const type &, const uint64_t &val)>;
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void for_each(const const_buffer &read, const read_closure &);
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system &hotsample(system &) noexcept;
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system &operator+=(system &a, const system &b);
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system &operator-=(system &a, const system &b);
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system operator+(const system &a, const system &b);
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system operator-(const system &a, const system &b);
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}
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/// Frontend to perf_event_open(2). This has the highest resolution.
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struct ircd::prof::system
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:std::array<std::array<uint64_t, 2>, 7>
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{
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using array_type = std::array<std::array<uint64_t, 2>, 7>;
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static prof::group group;
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// [N][0] = KERNEL, [N][1] = USER
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//
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// 0: TIME_PROF,
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// 1: TIME_CPU,
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// 2: TIME_TASK,
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// 3: PF_MINOR,
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// 4: PF_MAJOR,
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// 5: SWITCH_TASK,
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// 6: SWITCH_CPU,
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system(sample_t) noexcept;
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system() :array_type{{{0}}} {}
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~system() noexcept;
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};
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