ipc.h

它通过提供glibc兼容使得应用程序移植到较小的c 库时相当得容易. 它能够应用到带虚拟存储的Linux和uClinux上.在大多数带MMU部件的平台上为使它更加紧凑,它也能够编译成共享库.uClib

#ifndef IPC_H
#define IPC_H
#include <syscall.h>

#ifdef __NR_ipc

/* The actual system call: all functions are multiplexed by this.  */
extern int __ipc __P((int __call, int __first, int __second,
					  int __third, void *__ptr));


/* The codes for the functions to use the multiplexer `__syscall_ipc'.  */
#define IPCOP_semop	 1
#define IPCOP_semget	 2
#define IPCOP_semctl	 3
#define IPCOP_msgsnd	11
#define IPCOP_msgrcv	12
#define IPCOP_msgget	13
#define IPCOP_msgctl	14
#define IPCOP_shmat	21
#define IPCOP_shmdt	22
#define IPCOP_shmget	23
#define IPCOP_shmctl	24

#endif

#endif							/* IPC_H */