AtomicCount.h
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/* -*- C++ -*- */
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** Copyright (c) 2001-2014
**
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#ifndef ATOMIC_COUNT
#define ATOMIC_COUNT
#include "Mutex.h"
namespace FIX
{
#ifdef ENABLE_BOOST_ATOMIC_COUNT
#include <boost/smart_ptr/detail/atomic_count.hpp>
typedef boost::detail::atomic_count atomic_count;
#elif _MSC_VER
//atomic counter based on interlocked functions for Win32
class atomic_count
{
public:
explicit atomic_count( long v ): m_counter( v )
{
}
long operator++()
{
return ::InterlockedIncrement( &m_counter );
}
long operator--()
{
return ::InterlockedDecrement( &m_counter );
}
operator long() const
{
return static_cast<long const volatile &>( m_counter );
}
private:
atomic_count( atomic_count const & );
atomic_count & operator=( atomic_count const & );
long volatile m_counter;
};
#else
// general purpose atomic counter using mutexes
class atomic_count
{
public:
explicit atomic_count( long v ): m_counter( v )
{
}
long operator++()
{
Locker _lock(m_mutex);
return ++m_counter;
}
long operator--()
{
Locker _lock(m_mutex);
return --m_counter;
}
operator long() const
{
return static_cast<long const volatile &>( m_counter );
}
private:
atomic_count( atomic_count const & );
atomic_count & operator=( atomic_count const & );
Mutex m_mutex;
long m_counter;
};
#endif
}
#endif
FIX::atomic_count::m_mutex
Mutex m_mutex
Definition: AtomicCount.h:100
FIX::atomic_count::operator++
long operator++()
Definition: AtomicCount.h:78
FIX::atomic_count::atomic_count
atomic_count(long v)
Definition: AtomicCount.h:74
FIX
Definition: Acceptor.cpp:34
FIX::atomic_count::m_counter
long m_counter
Definition: AtomicCount.h:101
FIX::Locker
Locks/Unlocks a mutex using RAII.
Definition: Mutex.h:95
FIX::Mutex
Portable implementation of a mutex.
Definition: Mutex.h:30
FIX::atomic_count::operator=
atomic_count & operator=(atomic_count const &)
Mutex.h
FIX::atomic_count::operator--
long operator--()
Definition: AtomicCount.h:84