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construct/include/ircd/prof/resource.h

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// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_PROF_RESOURCE_H
namespace ircd::prof
{
struct resource;
resource &operator+=(resource &a, const resource &b);
resource &operator-=(resource &a, const resource &b);
resource operator+(const resource &a, const resource &b);
resource operator-(const resource &a, const resource &b);
}
/// Frontend to getrusage(2). This has higher resolution than prof::times
/// in practice with slight added expense.
struct ircd::prof::resource
:std::array<uint64_t, 9>
{
enum
{
TIME_USER, // microseconds
TIME_KERN, // microseconds
RSS_MAX,
PF_MINOR,
PF_MAJOR,
BLOCK_IN,
BLOCK_OUT,
SCHED_YIELD,
SCHED_PREEMPT,
};
resource(sample_t);
resource()
:std::array<uint64_t, 9>{{0}}
{}
};