//%2006////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; Symantec Corporation; The Open Group.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//==============================================================================
//
//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_TSDKey_h
#define Pegasus_TSDKey_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/Linkage.h>
#include <Pegasus/Common/Threads.h>

PEGASUS_NAMESPACE_BEGIN

//==============================================================================
//
// TSDKeyType
//
//==============================================================================

#if defined(PEGASUS_HAVE_PTHREADS)
typedef pthread_key_t TSDKeyType;
#endif

#if defined(PEGASUS_HAVE_WINDOWS_THREADS)
typedef DWORD TSDKeyType;
#endif

//==============================================================================
//
// TSDKey
//
//==============================================================================

class PEGASUS_COMMON_LINKAGE TSDKey
{
public:

    static Uint32 create(TSDKeyType * key);

    static Uint32 destroy(TSDKeyType key);

    static void* get_thread_specific(TSDKeyType key);

    static Uint32 set_thread_specific(TSDKeyType key, void* value);
};

//==============================================================================
//
// PEGASUS_HAVE_PTHREADS
//
//==============================================================================

#if defined(PEGASUS_HAVE_PTHREADS)

inline Uint32 TSDKey::create(TSDKeyType* key)
{
    return pthread_key_create(key, NULL);
} 

inline Uint32 TSDKey::destroy(TSDKeyType key)
{
    return pthread_key_delete(key);
}

inline void * TSDKey::get_thread_specific(TSDKeyType key)
{
    return pthread_getspecific(key);
} 

inline Uint32 TSDKey::set_thread_specific(TSDKeyType key, void* value)
{
    return pthread_setspecific(key, value);
} 

#endif /* defined(PEGASUS_HAVE_PTHREADS) */

//==============================================================================
//
// PEGASUS_HAVE_WINDOWS_THREADS
//
//==============================================================================

#if defined(PEGASUS_HAVE_WINDOWS_THREADS)

inline Uint32 TSDKey::create(TSDKeyType* key)
{
    *key = TlsAlloc();

    if (*key == -1)
        return 1;
    else
        return 0;
}

inline Uint32 TSDKey::destroy(TSDKeyType key)
{
    if (TlsFree(key))
        return 0;
    else
        return 1;
}

inline void * TSDKey::get_thread_specific(TSDKeyType key)
{
    return TlsGetValue(key);
}

inline Uint32 TSDKey::set_thread_specific(TSDKeyType key, void * value)
{
    if (TlsSetValue(key, value))
        return 0;
    else
        return 1;
}

#endif /* defined(PEGASUS_HAVE_WINDOWS_THREADS) */

PEGASUS_NAMESPACE_END

#endif /* Pegasus_TSDKey_h */