queue_init(9r)queue_init(9r)NAME
queue_init - General: Initializes the specified queue
SYNOPSIS
void queue_init(
queue_t queue_pointer );
ARGUMENTS
Specifies a pointer to a queue_entry structure. This structure contains a links member that specifies a queue_entry structure. This struc-
ture contains a generic doubly linked list (queue).
DESCRIPTION
The queue_init routine initializes the specified queue. Kernel modules call this routine prior to calling select_enqueue to initialize the
links member of the sel_queue data structure. This member specifies a queue_entry structure. This structure contains a generic doubly
linked list (queue).
RETURN VALUES
None
FILES SEE ALSO
Kernel routines: select_enqueue(9r)
Data Structures: sel_queue(9s)queue_init(9r)
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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)