key.h

linux下面的文件锁和信号量的程序

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <signal.h>
#include <sys/file.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>

#define SHM_SVR_MODE	(SHM_R|SHM_W)
#define SHM_CLI_MODE	SHM_W
#define SHM_SIZE	1024

key_t IPC_SHM_TEST;

typedef struct{
	short is_available;
	char ap_name[5];
	char message[20];
}COMM_TABLE;
/*END OF FILE key.h */