File /code/strss7/drivers/priv.h

#ifndef __PRIV_H__
#define __PRIV_H__

/*
 *  =========================================================================
 *
 *  Private Data Structures
 *
 *  =========================================================================
 */

/* list linkage */
#define HEAD_DECLARATION(__type) \
	__type *next;				/* link linkage */ \
	__type **prev;				/* link linkage */ \
	atomic_t refcnt;			/* reference count */ \
	lis_spin_lock_t lock;			/* structure lock */ \
	void (*put)(__type *);			/* release function */ \
	__type *(*get)(__type *);		/* acquire function */ \
	ulong type;				/* structure type */ \
	ulong id;				/* structure id */ \
	ulong state;				/* state */ \
	ulong flags;				/* flags */ \

typedef struct head {
	HEAD_DECLARATION (struct head);		/* head declaration */
} head_t;

/* stream related structures */
#define STR_DECLARATION(__type) \
	HEAD_DECLARATION(__type);		/* link linkage */ \
	union { \
		struct { \
			ushort cmajor;		/* device major */ \
			ushort cminor;		/* device minor */ \
		} dev; \
		struct { \
			ulong index;		/* linked index */ \
		} mux; \
	} u; \
	cred_t cred;				/* credential */ \
	queue_t *iq;				/* iput queue */ \
	queue_t *oq;				/* oput queue */ \
	int (*i_prim)(queue_t *, mblk_t *);	/* iput function */ \
	int (*o_prim)(queue_t *, mblk_t *);	/* oput function */ \
	void (*i_wakeup)(queue_t *);		/* isrv wakeup function */ \
	void (*o_wakeup)(queue_t *);		/* osrv wakeup function */ \
	lis_spin_lock_t qlock;			/* queue lock */ \
	uint ibid;				/* iput bufcall id */ \
	uint obid;				/* oput bufcall id */ \
	queue_t *iwait;				/* iput queue waiting */ \
	queue_t *owait;				/* oput queue waiting */ \
	ulong i_state;				/* interface state */ \
	ulong i_style;				/* interface style */ \
	ulong i_version;			/* interface version */ \
	ulong i_oldstate;			/* previous state */ \

/* generic stream structure */
typedef struct str {
	STR_DECLARATION (struct str);		/* stream declaration */
} str_t;
#define STR_PRIV(__q)((str_t *)(__q)->q_ptr)

/* generic linkage */
#define SLIST_LINKAGE(__s1, __s2, __s3) \
	struct { \
		struct __s1 *__s1; \
		struct __s2 *next; \
		struct __s2 **prev; \
	} __s3 \

#define SLIST_HEAD(__s1, __s2) \
	struct { \
		size_t numb; \
		struct __s1 *list; \
	} __s2 \

#define SLIST_HASH(__s1, __s2, __n) \
	struct { \
		size_t numb; \
		struct __s1 *hash[__n]; \
	} __s2 \

#endif				/* __PRIV_H__ */