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construct/include/ircd/prof/psi.h

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C++

// 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_PSI_H
namespace ircd::prof::psi
{
struct file;
struct metric;
struct refresh;
bool refresh(file &) noexcept;
extern const bool supported;
extern file cpu, mem, io;
}
struct ircd::prof::psi::metric
{
struct avg
{
seconds window;
float pct;
};
std::array<struct avg, 3> avg;
microseconds stall;
};
struct ircd::prof::psi::file
{
string_view name;
system_point sampled;
metric some, full;
};
#ifndef __linux__
inline bool
ircd::prof::psi::refresh(metric &)
noexcept
{
return false; // unsupported platform
}
#endif