HP UX 11i v1 I/O Cards manual Zqhdp Return param

ZCOM C I/F Library Routines

ZQSZE (3X)

PARAMETERS

zap ZCOM address

zqhdp (Return param)

ZCOM queue header data structure. This structure has the following definition:

typedef struct {
uint32	qnmsg;	/* Number of msgs on queue */
uint32	qlimit;	/* Max # of msgs allowed on queue */
zbhd_type		/* Pointer to 1st msg on queue */
*qhead;
zbhd_type *qtail;		/* Pointer to last msg on queue */
uint32	qmmax;	/* Historical max # of msgs on queue */
uint32	qtmsg;	/* Total # of msgs through queue */
uint32	qbytes;	/* Number of bytes on queue */
uint16	qwaiter;	/* Number of waiters on this queue */
uint16	qflag;	/* Queue flags */
uint32	qfdata;	/* Queue function data */
uint32	spare1;	/* Reserved, not used */
void		/* Queue function to call */

(*qfunc)();

}zqhd_type;

Note that in 32-bit mode, 32-bit padding fields are inserted before the pointer fields. These are to maintain the same layout in both 32/64-bit modes. Such padding fields are not shown here and also should not be referenced directly.

RETURN VALUE Routine zqsze returns 0 if successful. Otherwise, a non-zeroerror code is returned. See /opt/acc/include/zcom/zcomsys.h for the list of ZCOM error codes and their meanings.

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