linux/include/asm-generic/ipc.h

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#ifndef _ASM_GENERIC_IPC_H
#define _ASM_GENERIC_IPC_H
/*
* These are used to wrap system calls.
*
* See architecture code for ugly details..
*/
struct ipc_kludge {
struct msgbuf __user *msgp;
long msgtyp;
};
#define SEMOP 1
#define SEMGET 2
#define SEMCTL 3
#define SEMTIMEDOP 4
#define MSGSND 11
#define MSGRCV 12
#define MSGGET 13
#define MSGCTL 14
#define SHMAT 21
#define SHMDT 22
#define SHMGET 23
#define SHMCTL 24
/* Used by the DIPC package, try and avoid reusing it */
#define DIPC 25
#define IPCCALL(version,op) ((version)<<16 | (op))
#endif /* _ASM_GENERIC_IPC_H */