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

NAME

free_rtn - structure that specifies a driver's message-freeing routine

SYNOPSIS

#include <sys/stream.h>

INTERFACE LEVEL

Architecture independent level 1 (DDI/DKI).

DESCRIPTION

The free_rtn structure is referenced by the datab structure. When
freeb(9F) is called to free the message, the driver's message-freeing
routine (referenced through the free_rtn structure) is called, with
arguments, to free the data buffer.

STRUCTURE MEMBERS

void (*free_func)() /* user's freeing routine */
char *free_arg /* arguments to free_func() */

The free_rtn structure is defined as type frtn_t.

SEE ALSO

esballoc(9F), freeb(9F), datab(9S)

STREAMS Programming Guide.

illumos July 9, 2018 illumos