streamtab(9s) [freebsd man page]

streamtab(9S)						    Data Structures for Drivers 					     streamtab(9S)

NAME

       streamtab - STREAMS entity declaration structure

SYNOPSIS

       #include <sys/stream.h>

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

DESCRIPTION

       Each STREAMS driver or module must have a streamtab structure.

       streamtab  is made up of qinit structures for both the read and write queue portions of each module or driver. Multiplexing drivers require
       both upper and lower qinit structures. The qinit structure contains the entry points through  which  the  module  or  driver  routines  are
       called.

       Normally, the read QUEUE contains the open and close routines. Both the read and write queue can contain put and service procedures.

STRUCTURE MEMBERS

       struct qinit    *st_rdinit;    /* read QUEUE */
       struct qinit    *st_wrinit;    /* write QUEUE */
       struct qinit    *st_muxrinit;  /* lower read QUEUE*/
       struct qinit    *st_muxwinit;  /* lower write QUEUE*/

SEE ALSO

       qinit(9S)

       STREAMS Programming Guide

SunOS 5.10							    11 Apr 1991 						     streamtab(9S)

qinit(9S)                                                   Data Structures for Drivers                                                  qinit(9S)

NAME

       qinit - STREAMS queue processing procedures structure

SYNOPSIS

       #include <sys/stream.h>

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI)

DESCRIPTION

       The   qinit  structure  contains  pointers to processing procedures for a  QUEUE. The streamtab structure for the module or driver contains
       pointers to one queue(9S) structure for both upstream and downstream processing.

STRUCTURE MEMBERS

       int                 (*qi_putp)();      /* put procedure */
       int                 (*qi_srvp)();      /* service procedure */
       int                 (*qi_qopen)();     /* open procedure */
       int                 (*qi_qclose)();    /* close procedure */
       int                 (*qi_qadmin)();    /* unused */
       struct module_info  *qi_minfo;         /* module parameters */
       struct module_stat  *qi_mstat;         /* module statistics */

SEE ALSO

       queue(9S), streamtab(9S)

       Writing Device Drivers

       STREAMS Programming Guide

NOTES

       This release includes no support for module statistics.

SunOS 5.10                                                          11 Apr 1991                                                          qinit(9S)