//-*****************************************************************************

//

// Copyright (c) 2009-2015,

//  Sony Pictures Imageworks Inc. and

//  Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.

//

// All rights reserved.

//

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

// *       Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

// *       Redistributions in binary form must reproduce the above

// copyright notice, this list of conditions and the following disclaimer

// in the documentation and/or other materials provided with the

// distribution.

// *       Neither the name of Industrial Light & Magic nor the names of

// its contributors may be used to endorse or promote products derived

// from this software without specific prior written permission.

//

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

//-*****************************************************************************

#ifndef Alembic_Util_Foundation_h

#define Alembic_Util_Foundation_h

#include <Alembic/Util/Config.h>

#include <unordered_map>

#include <memory>

#include <half.h>

#include <iomanip>

#include <iostream>

#include <sstream>

#include <exception>

#include <limits>

#include <list>

#include <map>

#include <string>

#include <vector>

#include <cstdio>

#include <cstdlib>

#include <cstring>

#include <cassert>

#include <Alembic/Util/Export.h>

#ifdef _MSC_VER

#ifndef WIN32_LEAN_AND_MEAN

#define WIN32_LEAN_AND_MEAN

#endif

// avoid windows min/max predefined macro conflicts

#ifndef NOMINMAX

#define NOMINMAX

#endif

// needed for mutex stuff

#include <Windows.h>

#endif

// needed for std min/max

#include <algorithm>

// When we change this version (because of an ABI change) Make sure to at

// LEAST bump the minor version in CMakeLists.txt i.e. PROJECT_VERSION_MINOR

// This way we will hopefully not break any distros that kindly include us.

// See Issue243

#ifndef ALEMBIC_VERSION_NS

#define ALEMBIC_VERSION_NS v12

#endif

namespace Alembic {

namespace Util {

namespace ALEMBIC_VERSION_NS {

// similiar to boost::noncopyable

// explicitly hides copy construction and copy assignment

class ALEMBIC_EXPORT noncopyable

{

protected:

    noncopyable() {}

    ~noncopyable() {}

private:

    noncopyable( const noncopyable& );

    const noncopyable& operator=( const noncopyable& );

};

using std::dynamic_pointer_cast;

using std::enable_shared_from_this;

using std::shared_ptr;

using std::static_pointer_cast;

using std::weak_ptr;

using std::unordered_map;

using std::unique_ptr;

// similiar to boost::totally_ordered

// only need < and == operators and this fills in the rest

template < class T >

class totally_ordered

{

    friend bool operator > ( const T& x, const T& y )

    {

        return y < x;

    }

    friend bool operator <= ( const T& x, const T& y )

    {

        return !( y < x );

    }

    friend bool operator >= ( const T& x, const T& y )

    {

        return !( x < y );

    }

    friend bool operator != ( const T& x, const T& y )

    {

        return !( x == y );

    }

};

// inspired by boost::mutex

#ifdef _MSC_VER

class mutex : noncopyable

{

public:

    mutex()

    {

         InitializeCriticalSection(&cs);

    }

    ~mutex()

    {

        DeleteCriticalSection(&cs);

    }

    void lock()

    {

        EnterCriticalSection(&cs);

    }

    void unlock()

    {

        LeaveCriticalSection(&cs);

    }

private:

    CRITICAL_SECTION cs;

};

#else

class mutex : noncopyable

{

public:

    mutex()

    {

        pthread_mutex_init( &m, NULL );

    }

    ~mutex()

    {

        pthread_mutex_destroy( &m );

    }

    void lock()

    {

        pthread_mutex_lock( &m );

    }

    void unlock()

    {

        pthread_mutex_unlock( &m );

    }

private:

    pthread_mutex_t m;

};

#endif

class scoped_lock : noncopyable

{

public:

    scoped_lock( mutex & l ) : m( l )

    {

        m.lock();

    }

    ~scoped_lock()

    {

        m.unlock();

    }

private:

    mutex & m;

};

} // End namespace ALEMBIC_VERSION_NS

using namespace ALEMBIC_VERSION_NS;

} // End namespace Util

} // End namespace Alembic

#endif