////////////////////////////////////////////////////////////////////////////////
/// @brief memory mapped files in windows
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2004-2012 triagens GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
///     http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is triAGENS GmbH, Cologne, Germany
///
/// @author Dr. O
/// @author Copyright 2012, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////

#ifndef TRIAGENS_BASICS_C_MEMORY_MAP_WIN32_H
#define TRIAGENS_BASICS_C_MEMORY_MAP_WIN32_H 1

#include "BasicsC/common.h"

#ifdef TRI_HAVE_WIN32_MMAP

#include <Windows.h>


////////////////////////////////////////////////////////////////////////////////
// Flags used when we create a memory map -- dummy flags for windows for now
////////////////////////////////////////////////////////////////////////////////

#define MAP_SHARED      0x01            /* Share changes */
#define MAP_PRIVATE     0x02            /* Changes are private */
#define MAP_TYPE        0x0f            /* Mask for type of mapping */
#define MAP_FIXED       0x10            /* Interpret addr exactly */
#define MAP_ANONYMOUS   0x20            /* don't use a file */


////////////////////////////////////////////////////////////////////////////////
// Define some dummy flags which are ignored under windows.
// Under windows only the MS_SYNC flag makes sense, that is, all memory map
// file flushes are synchronous.
////////////////////////////////////////////////////////////////////////////////

#define MS_ASYNC        1             /* sync memory asynchronously */
#define MS_INVALIDATE   2             /* invalidate the caches */
#define MS_SYNC         4             /* synchronous memory sync */



#define PROT_READ       0x1             /* Page can be read.  */
#define PROT_WRITE      0x2             /* Page can be written.  */
#define PROT_EXEC       0x4             /* Page can be executed.  */
#define PROT_NONE       0x0             /* Page can not be accessed.  */
#define PROT_GROWSDOWN  0x01000000      /* Extend change to start of growsdown vma (mprotect only).  */
#define PROT_GROWSUP    0x02000000      /* Extend change to start of growsup vma (mprotect only).  */


#ifdef __cplusplus
extern "C" {
#endif


////////////////////////////////////////////////////////////////////////////////
/// @addtogroup Memory_map
/// @{
////////////////////////////////////////////////////////////////////////////////


////////////////////////////////////////////////////////////////////////////////
/// @}
////////////////////////////////////////////////////////////////////////////////

#ifdef __cplusplus
}
#endif

#endif

#endif

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