strqset(9r) [osf1 man page]
strqset(9r) strqset(9r) NAME
strqset - General: Changes information about a queue SYNOPSIS
#include <sys/stream.h> int strqset( queue_t *queue_pointer, qfields_t what, unsigned char pri, long *val ); ARGUMENTS
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
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
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
Routines: strqget(9r) strqset(9r)
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strqset(9F) Kernel Functions for Drivers strqset(9F) NAME
strqset - change information about a queue or band of the queue SYNOPSIS
#include <sys/stream.h> int strqset(queue_t *q, qfields_t what, unsigned char pri, intptr_t val); INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI). PARAMETERS
q Pointer to the queue. what Field of the queue structure (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. pri Priority band of interest. val The value for the field to be changed. DESCRIPTION
The strqset() function gives drivers and modules a way to change information about a queue or a particular band of a queue without directly accessing STREAMS data structures. RETURN VALUES
On success, 0 is returned. EINVAL is returned if an undefined attribute is specified. CONTEXT
The strqset() function can be called from user, interrupt, or kernel context. SEE ALSO
strqget(9F), queue(9S) Writing Device Drivers STREAMS Programming Guide NOTES
When lowering existing values, set QMINPSZ before setting QMAXPSZ; when raising existing values, set QMAXPSZ before setting QMINPSZ. SunOS 5.11 16 Jan 2006 strqset(9F)