NAME    [Toc]    [Back]

       strqset - General: Changes information about a queue

SYNOPSIS    [Toc]    [Back]

       #include <sys/stream.h>

       int strqset(
               queue_t *queue_pointer,
               qfields_t what,
               unsigned char pri,
               long *val );

ARGUMENTS    [Toc]    [Back]

       Specifies  a  pointer  to  the queue for which you want to
       change information. The typedef queue_t  is  an  alternate
       name  for struct queue_entry *.  Specifies which member of
       the queue structure to return information about. The valid
       values  are specified in the qfields enumerated data type.
       See the DESCRIPTION section for  the  definition  of  this
       enumerated  data  type.   Specifies  the  priority  of the
       request.   Specifies  the  value  for  the  member  to  be
       changed.

DESCRIPTION    [Toc]    [Back]

       The  strqset  routine  gives  modules and drivers a way to
       change information about a queue or a particular band of a
       queue  without directly accessing STREAMS data structures.
       The values that can be returned are defined in the following
 enumerated data type:

       typedef enum qfields {
               QHIWAT  = 0,
               QLOWAT  = 1,
               QMAXPSZ = 2,
               QMINPSZ = 3,
               QCOUNT  = 4,
               QFIRST  = 5,
               QLAST   = 6,
               QFLAG   = 7,
               QBAD    = 8 } qfields_t;

RETURN VALUES    [Toc]    [Back]

       Upon  successful  completion,  strqset returns the value 0
       (zero). On failure, strqset returns an error  number.   If
       the  what argument is read-only, strqset returns the error
       constant EPERM.

SEE ALSO    [Toc]    [Back]

       Routines: strqget(9r)



                                                      strqset(9r)