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 SunOS 5.10 13 Nov 1996 free_rtn(9S)