Luna/libc/include/sys/mman.h

/* sys/mman.h: Memory allocation and deallocation. */

#ifndef _SYS_MMAN_H
#define _SYS_MMAN_H

#include <bits/mmap-flags.h>
#include <sys/types.h>

#define PAGE_SIZE 4096UL

#define MAP_FAILED (void*)-1

#define MS_SYNC 1
#define MS_ASYNC 2
#define MS_INVALIDATE 4

#define MADV_NORMAL 0
#define MADV_RANDOM 1

#ifdef __cplusplus
extern "C"
{
#endif

    /* Map a file into memory. */
    void* mmap(void* addr, size_t len, int prot, int flags, int fd, off_t offset);

    /* Remove a memory mapping. */
    int munmap(void* addr, size_t len);

    /* Write modified shared memory back to its associated file. */
    int msync(void* addr, size_t len, int flags);

    /* Give advice about the use of memory. */
    int madvise(void* addr, size_t length, int advice);

    /* Create a new POSIX shared memory object. */
    int shm_open(const char* name, int oflag, mode_t mode);

    /* Delete a POSIX shared memory object from the file system. */
    int shm_unlink(const char* name);

#ifdef __cplusplus
}
#endif

#endif