win.h

#ifndef _WIN_H_
#define _WIN_H_

#define WIN32_LEAN_AND_MEAN      // Exclude rarely-used stuff from Windows headers
#include <windows.h>
#include <time.h>
#include <stdint.h>

#define ssize_t int64_t
#define ftell _ftelli64

// Below code is originally from mman-win32
//
/*
 * sys/mman.h
 * mman-win32
 */

#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

#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

/* Flags for portable clock_gettime call. */
#define CLOCK_REALTIME  0

void*   mmap(void *addr, size_t len, int prot, int flags, int fildes, ssize_t off);
int     munmap(void *addr, size_t len);
int     mprotect(void *addr, size_t len, int prot);
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);
int     clock_gettime(int clk_id, struct timespec *tp);

#ifdef __cplusplus
};
#endif

#endif /*  _WIN_H_ */