mirror of
https://github.com/ComodoSecurity/openedr/
synced 2026-06-06 15:24:33 +00:00
Vasily Plotnikov
82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
// Module: Log4CPLUS
|
|
// File: pointer.cxx
|
|
// Created: 6/2001
|
|
// Author: Tad E. Smith
|
|
//
|
|
//
|
|
// Copyright 2001-2017 Tad E. Smith
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include <log4cplus/streams.h>
|
|
#include <log4cplus/helpers/pointer.h>
|
|
#include <log4cplus/thread/threads.h>
|
|
#include <log4cplus/thread/impl/syncprims-impl.h>
|
|
#include <cassert>
|
|
|
|
|
|
namespace log4cplus { namespace helpers {
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// log4cplus::helpers::SharedObject dtor
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
SharedObject::~SharedObject()
|
|
{
|
|
assert(count__ == 0);
|
|
}
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// log4cplus::helpers::SharedObject public methods
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
void
|
|
SharedObject::addReference() const LOG4CPLUS_NOEXCEPT
|
|
{
|
|
#if defined (LOG4CPLUS_SINGLE_THREADED)
|
|
++count__;
|
|
|
|
#else
|
|
std::atomic_fetch_add_explicit (&count__, 1u,
|
|
std::memory_order_relaxed);
|
|
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
SharedObject::removeReference() const
|
|
{
|
|
assert (count__ > 0);
|
|
bool destroy;
|
|
|
|
#if defined (LOG4CPLUS_SINGLE_THREADED)
|
|
destroy = --count__ == 0;
|
|
|
|
#else
|
|
destroy = std::atomic_fetch_sub_explicit (&count__, 1u,
|
|
std::memory_order_release) == 1;
|
|
if (LOG4CPLUS_UNLIKELY (destroy))
|
|
std::atomic_thread_fence (std::memory_order_acquire);
|
|
|
|
#endif
|
|
if (LOG4CPLUS_UNLIKELY (destroy))
|
|
delete this;
|
|
}
|
|
|
|
|
|
} } // namespace log4cplus { namespace helpers
|