Manual Pages for UNIX Operating System command usage for man strqget

Kernel Functions for Drivers                          strqget(9F)



NAME
     strqget - get information about a queue or band of the queue

SYNOPSIS
     #include 



     int strqget(queue_t *q, qfields_t what, unsigned char pri, void *valp);


INTERFACE LEVEL
     Architecture independent level 1 (DDI/DKI).

PARAMETERS
     q       Pointer to the queue.


     what    Field of the queue structure for (or  the  specified
             priority  band)  to  return information about. Valid
             values are one of:

             QHIWAT     High water mark.


             QLOWAT     Low water mark.


             QMAXPSZ    Largest packet accepted.


             QMINPSZ    Smallest packet accepted.


             QCOUNT     Approximate size (in bytes) of data.


             QFIRST     First message.


             QLAST      Last message.


             QFLAG      Status.



     pri     Priority band of interest.


     valp    The address of where  to  store  the  value  of  the
             requested field.



SunOS 5.11          Last change: 16 Jan 2006                    1






Kernel Functions for Drivers                          strqget(9F)



DESCRIPTION
     The strqget() function gives drivers and modules  a  way  to
     get  information  about  a  queue  or a particular band of a
     queue without directly accessing  STREAMS  data  structures,
     thus  insulating  them from changes in the implementation of
     these data structures from release to release.

RETURN VALUES
     On success, 0 is returned and the  value  of  the  requested
     field is stored in the location pointed to by valp. An error
     number is returned on failure.

CONTEXT
     The strqget() function can be called from  user,  interrupt,
     or kernel context.

SEE ALSO
     strqset(9F), queue(9S)


     Writing Device Drivers


     STREAMS Programming Guide































SunOS 5.11          Last change: 16 Jan 2006                    2