mirror of
https://github.com/matrix-construct/construct
synced 2024-12-01 19:22:53 +01:00
160 lines
3.6 KiB
C++
160 lines
3.6 KiB
C++
// The Construct
|
|
//
|
|
// Copyright (C) The Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2020 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_IOS_HANDLER_H
|
|
|
|
namespace ircd::ios
|
|
{
|
|
struct handler;
|
|
|
|
template<class function>
|
|
struct handle;
|
|
|
|
const string_view &name(const handler &);
|
|
}
|
|
|
|
struct ircd::ios::handler
|
|
{
|
|
static thread_local handler *current;
|
|
static thread_local uint64_t epoch;
|
|
|
|
static void enqueue(handler *const &) noexcept;
|
|
static void *allocate(handler *const &, const size_t &);
|
|
static void deallocate(handler *const &, void *const &, const size_t &) noexcept;
|
|
static bool continuation(handler *const &) noexcept;
|
|
static void enter(handler *const &) noexcept;
|
|
static void leave(handler *const &) noexcept;
|
|
static bool fault(handler *const &) noexcept;
|
|
|
|
ios::descriptor *descriptor {nullptr};
|
|
uint64_t ts {0}; // last tsc sample; for profiling each phase
|
|
};
|
|
|
|
template<class function>
|
|
struct ircd::ios::handle
|
|
:handler
|
|
{
|
|
function f;
|
|
|
|
template<class... args>
|
|
void operator()(args&&... a) const;
|
|
|
|
handle(ios::descriptor &, function) noexcept;
|
|
};
|
|
|
|
//
|
|
// ircd::ios::handle
|
|
//
|
|
|
|
template<class function>
|
|
inline
|
|
ircd::ios::handle<function>::handle(ios::descriptor &d,
|
|
function f)
|
|
noexcept
|
|
:handler{&d, prof::cycles()}
|
|
,f(std::move(f))
|
|
{
|
|
handler::enqueue(this);
|
|
}
|
|
|
|
template<class function>
|
|
template<class... args>
|
|
inline void
|
|
ircd::ios::handle<function>::operator()(args&&... a)
|
|
const
|
|
{
|
|
assert(descriptor && descriptor->stats);
|
|
assert(descriptor->stats->queued > 0);
|
|
descriptor->stats->queued--;
|
|
f(std::forward<args>(a)...);
|
|
}
|
|
|
|
//
|
|
// ircd::ios::handler
|
|
//
|
|
|
|
[[gnu::hot]]
|
|
inline void
|
|
ircd::ios::handler::deallocate(handler *const &handler,
|
|
void *const &ptr,
|
|
const size_t &size)
|
|
noexcept
|
|
{
|
|
assert(handler && handler->descriptor);
|
|
auto &descriptor(*handler->descriptor);
|
|
|
|
assert(descriptor.deallocator);
|
|
descriptor.deallocator(*handler, ptr, size);
|
|
|
|
assert(descriptor.stats);
|
|
auto &stats(*descriptor.stats);
|
|
stats.free_bytes += size;
|
|
++stats.frees;
|
|
}
|
|
|
|
[[gnu::hot]]
|
|
inline void *
|
|
ircd::ios::handler::allocate(handler *const &handler,
|
|
const size_t &size)
|
|
{
|
|
assert(handler && handler->descriptor);
|
|
auto &descriptor(*handler->descriptor);
|
|
|
|
assert(descriptor.stats);
|
|
auto &stats(*descriptor.stats);
|
|
stats.alloc_bytes += size;
|
|
++stats.allocs;
|
|
|
|
assert(descriptor.allocator);
|
|
return descriptor.allocator(*handler, size);
|
|
}
|
|
|
|
[[gnu::hot]]
|
|
inline void
|
|
ircd::ios::handler::enqueue(handler *const &handler)
|
|
noexcept
|
|
{
|
|
assert(handler && handler->descriptor);
|
|
auto &descriptor(*handler->descriptor);
|
|
|
|
assert(descriptor.stats);
|
|
auto &stats(*descriptor.stats);
|
|
++stats.queued;
|
|
|
|
if constexpr(profile::logging)
|
|
log::logf
|
|
{
|
|
log, log::level::DEBUG,
|
|
"QUEUE %5u %-30s [%11lu] ------[%9lu] q:%-4lu",
|
|
descriptor.id,
|
|
trunc(descriptor.name, 30),
|
|
uint64_t(stats.calls),
|
|
0UL,
|
|
uint64_t(stats.queued),
|
|
};
|
|
}
|
|
|
|
[[gnu::hot]]
|
|
inline bool
|
|
ircd::ios::handler::continuation(handler *const &handler)
|
|
noexcept
|
|
{
|
|
assert(handler && handler->descriptor);
|
|
auto &descriptor(*handler->descriptor);
|
|
return descriptor.continuation;
|
|
}
|
|
|
|
inline const ircd::string_view &
|
|
ircd::ios::name(const handler &handler)
|
|
{
|
|
assert(handler.descriptor);
|
|
return name(*handler.descriptor);
|
|
}
|