shmsys.h

证券交易系统

#define SHMFILE		"/etc/SHMFILE"
#define SHMFILE_NET	"/etc/SHMFILE_NET"
#define SHMID1		1
#define SHMID1_NET	2

#define	EXEC_NUM	20

/* PSTAT中 pause 的含义如下 */
#define	ACTIVE	'A'		/* 活动状态 */
#define PAUSE	'P'		/* 进程暂停 */
#define KILLED	'K'		/* 进程杀死 */
#define	SETTIME	'T'		/* 设置时间 */

typedef struct {
	char	name[9];		/* exec file name */
	int	pid;
	char	pause;		
	char	time[9];
	int	times;
}PSTAT;

typedef struct {
	PSTAT	pst[EXEC_NUM];
	char	monitor;		/* 0 -- Pause  1 -- Working */
	char	errmsg;			/* 0 -- Pause  1 -- Working */
	char	trace;			/* 0 -- Pause  1 -- Working */
}SHM1;

#define cshm1()	creat_shm(SHMFILE, SHMID1, sizeof(SHM1))
#define cshm1_net()	creat_shm(SHMFILE_NET, SHMID2, sizeof(SHM1))
#define gshm1()	get_shm(SHMFILE, SHMID1, sizeof(SHM1))
#define gshm1_net()	get_shm(SHMFILE_NET, SHMID2, sizeof(SHM1))