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#ifndef CYGONCE_POSIX_MUTTYPES_H

#define CYGONCE_POSIX_MUTTYPES_H

//=============================================================================

//

//      muttypes.h

//

//      POSIX mutex types header

//

//=============================================================================

// ####ECOSGPLCOPYRIGHTBEGIN####                                            

// -------------------------------------------                              

// This file is part of eCos, the Embedded Configurable Operating System.   

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under    

// the terms of the GNU General Public License as published by the Free     

// Software Foundation; either version 2 or (at your option) any later      

// version.                                                                 

//

// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,    

// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            

//

// As a special exception, if other files instantiate templates or use      

// macros or inline functions from this file, or you compile this file      

// and link it with other works to produce a work based on this file,       

// this file does not by itself cause the resulting work to be covered by   

// the GNU General Public License. However the source code for this file    

// must still be made available in accordance with section (3) of the GNU   

// General Public License v2.                                               

//

// This exception does not invalidate any other reasons why a work based    

// on this file might be covered by the GNU General Public License.         

// -------------------------------------------                              

// ####ECOSGPLCOPYRIGHTEND####                                              

//=============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     nickg

// Contributors:  nickg,jlarmour

// Date:          2000-03-17

// Purpose:       POSIX types header

// Description:   This header contains POSIX type definitions for mutexes

//                and cond vars. These types are implementation defined.

//              

// Usage:         #include <sys/types.h>

//              

//

//####DESCRIPTIONEND####

//

//=============================================================================

#include <pkgconf/posix.h>

#include <pkgconf/kernel.h>

#include <cyg/infra/cyg_type.h>

//-----------------------------------------------------------------------------

// Mutex object

// This structure must exactly correspond in size and layout to the underlying

// eCos C++ class that implements this object. Because we have to support

// PTHREAD_MUTEX_INITIALIZER we cannot abstract this object very easily.

typedef struct

{

    CYG_WORD32  locked;

    CYG_ADDRESS owner;

    CYG_ADDRESS queue;

#ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_DYNAMIC

    CYG_WORD32  protocol;       // this mutex's protocol

#endif    

#ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_CEILING

    CYG_WORD32  ceiling;        // mutex priority ceiling

#endif

} pthread_mutex_t;

#if defined(CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_DYNAMIC) &&\

    defined(CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_CEILING)

#define PTHREAD_MUTEX_INITIALIZER { 0, 0, 0, 0, 0 }

#elif defined(CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_DYNAMIC) ||\

    defined(CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_CEILING)

#define PTHREAD_MUTEX_INITIALIZER { 0, 0, 0, 0 }

#else

#define PTHREAD_MUTEX_INITIALIZER { 0, 0, 0 }

#endif

//-----------------------------------------------------------------------------

// Mutex attributes structure

typedef struct

{

    int         protocol;

#ifdef _POSIX_THREAD_PRIO_PROTECT    

    int         prioceiling;

#endif    

} pthread_mutexattr_t;

// Values for protocol

#define PTHREAD_PRIO_NONE       1

#if defined(_POSIX_THREAD_PRIO_INHERIT)

#define PTHREAD_PRIO_INHERIT    2

#endif

#if defined(_POSIX_THREAD_PRIO_PROTECT)

#define PTHREAD_PRIO_PROTECT    3

#endif

//-----------------------------------------------------------------------------

// Condition Variable structure.

// Like mutexes, this must match the underlying eCos implementation class.

typedef struct

{

    CYG_ADDRESS         mutex;

    CYG_ADDRESS         queue;

} pthread_cond_t;

#define PTHREAD_COND_INITIALIZER { 0, 0 }

//-----------------------------------------------------------------------------

// Condition variable attributes structure

typedef struct

{

    int         dummy;

} pthread_condattr_t;

//-----------------------------------------------------------------------------

#endif // ifndef CYGONCE_POSIX_MUTTYPES_H

// End of muttypes.h