#pragma once
/*
 * sys/mman.h
 * mman-win32
 *
 * Based on https://github.com/witwall/mman-win32
 */
#ifndef _SYS_MMAN_H_
#define _SYS_MMAN_H_

#include "basedefs.h"

#ifndef _WIN32_WINNT        // Allow use of features specific to Windows XP or later.
#define _WIN32_WINNT 0x0501 // Change this to the appropriate value to target other versions of Windows.
#endif

/* All the headers include this file. */
#ifndef _MSC_VER
#include <_mingw.h>
#endif

#if defined(MMAN_LIBRARY)
#define MMANSHARED_EXPORT __declspec(dllexport)
#else
#define MMANSHARED_EXPORT __declspec(dllimport)
#endif

/* Determine offset type */
#include <stdint.h>
#if defined(_WIN64)
typedef int64_t OffsetType;
#else
typedef uint32_t OffsetType;
#endif

#include <sys/types.h>

#ifdef __cplusplus
extern "C" {
#endif

#define PROT_NONE  0
#define PROT_READ  1
#define PROT_WRITE 2
#define PROT_EXEC  4

#define MAP_FILE      0
#define MAP_SHARED    1
#define MAP_PRIVATE   2
#define MAP_TYPE      0xf
#define MAP_FIXED     0x10
#define MAP_ANONYMOUS 0x20
#define MAP_ANON      MAP_ANONYMOUS

#define MAP_FAILED ((void*) -1)

/* Flags for msync. */
#define MS_ASYNC      1
#define MS_SYNC       2
#define MS_INVALIDATE 4

void *mmap(void *addr, size_t len, int prot, int flags, HANDLE fh, OffsetType off);
int munmap(void *addr, size_t len);
int msync(void *addr, size_t len, int flags);
int mlock(const void *addr, size_t len);
int munlock(const void *addr, size_t len);

#ifdef __cplusplus
}
#endif

#endif /*  _SYS_MMAN_H_ */
