juce_CriticalSection.h

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/*
  ==============================================================================

   This file is part of the JUCE library - "Jules' Utility Class Extensions"
   Copyright 2004-7 by Raw Material Software ltd.

  ------------------------------------------------------------------------------

   JUCE can be redistributed and/or modified under the terms of the
   GNU General Public License, as published by the Free Software Foundation;
   either version 2 of the License, or (at your option) any later version.

   JUCE is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with JUCE; if not, visit www.gnu.org/licenses or write to the
   Free Software Foundation, Inc., 59 Temple Place, Suite 330,
   Boston, MA 02111-1307 USA

  ------------------------------------------------------------------------------

   If you'd like to release a closed-source product which uses JUCE, commercial
   licenses are also available: visit www.rawmaterialsoftware.com/juce for
   more information.

  ==============================================================================
*/

#ifndef __JUCE_CRITICALSECTION_JUCEHEADER__
#define __JUCE_CRITICALSECTION_JUCEHEADER__


//==============================================================================
class JUCE_API  CriticalSection
{
public:
    //==============================================================================
    CriticalSection() throw();

    ~CriticalSection() throw();

    //==============================================================================
    void enter() const throw();

    bool tryEnter() const throw();

    void exit() const throw();


    //==============================================================================
    juce_UseDebuggingNewOperator

private:
    //==============================================================================
#if JUCE_WIN32
  #if JUCE_64BIT
    // To avoid including windows.h in the public Juce includes, we'll just allocate a
    // block of memory here that's big enough to be used internally as a windows critical
    // section object.
    uint8 internal [44];
  #else
    uint8 internal [24];
  #endif
#else
    mutable pthread_mutex_t internal;
#endif

    CriticalSection (const CriticalSection&);
    const CriticalSection& operator= (const CriticalSection&);
};


//==============================================================================
class JUCE_API  DummyCriticalSection
{
public:
    forcedinline DummyCriticalSection() throw()         {}
    forcedinline ~DummyCriticalSection() throw()        {}

    forcedinline void enter() const throw()             {}
    forcedinline void exit() const throw()              {}
};


#endif   // __JUCE_CRITICALSECTION_JUCEHEADER__