musl/include/sys/shm.h

#ifndef _SYS_SHM_H
#define _SYS_SHM_H

#ifdef __cplusplus
extern "C" {
#endif

#include <features.h>

#define __NEED_time_t
#define __NEED_size_t
#define __NEED_pid_t

#include <bits/alltypes.h>

#include <sys/ipc.h>

#ifdef _GNU_SOURCE
#define __used_ids used_ids
#define __swap_attempts swap_attempts
#define __swap_successes swap_successes
#endif

#include <bits/shm.h>

#define SHM_R 0400
#define SHM_W 0200

#define SHM_RDONLY 010000
#define SHM_RND    020000
#define SHM_REMAP  040000
#define SHM_EXEC   0100000

#define SHM_LOCK 11
#define SHM_UNLOCK 12
#define SHM_STAT (13 | (IPC_STAT & 0x100))
#define SHM_INFO 14
#define SHM_STAT_ANY (15 | (IPC_STAT & 0x100))
#define SHM_DEST 01000
#define SHM_LOCKED 02000
#define SHM_HUGETLB 04000
#define SHM_NORESERVE 010000

#define SHM_HUGE_SHIFT 26
#define SHM_HUGE_MASK  0x3f
#define SHM_HUGE_64KB  (16 << 26)
#define SHM_HUGE_512KB (19 << 26)
#define SHM_HUGE_1MB   (20 << 26)
#define SHM_HUGE_2MB   (21 << 26)
#define SHM_HUGE_8MB   (23 << 26)
#define SHM_HUGE_16MB  (24 << 26)
#define SHM_HUGE_32MB  (25 << 26)
#define SHM_HUGE_256MB (28 << 26)
#define SHM_HUGE_512MB (29 << 26)
#define SHM_HUGE_1GB   (30 << 26)
#define SHM_HUGE_2GB   (31 << 26)
#define SHM_HUGE_16GB  (34U << 26)

typedef unsigned long shmatt_t;

void *shmat(int, const void *, int);
int shmctl(int, int, struct shmid_ds *);
int shmdt(const void *);
int shmget(key_t, size_t, int);

#ifdef __cplusplus
}
#endif

#endif