Name
t_free - free a library structure
Syntax
#include <tiuser.h>
int t_free(ptr, struct_type)
char *ptr;
int struct_type;
Description
The t_free function frees memory previously allocated by
t_alloc. This function will free memory for the specified
structure and will also free memory for buffers referenced
by the structure.
ptr points to one of the six structure types described for
t_alloc, and struct_type identifies the type of that
structure which can be one of the following:
T_BIND struct t_bind
T_CALL struct t_call
T_OPTMGMT struct t_optmgmt
T_DIS struct t_discon
T_UNITDATA struct t_unitdata
T_UDERROR struct t_uderr
T_INFO struct t_info
where each of these structures is used as an argument to one
or more transport functions.
The t_free function will check the addr, opt, and udata
fields of the given structure (as appropriate) and free the
buffers pointed to by the buf field of the netbuf [see
intro(NSL)] structure. If buf is NULL, t_free will not
attempt to free memory. After all buffers are freed, t_free
will free the memory associated with the structure pointed
to by ptr.
Undefined results will occur if ptr or any of the buf
pointers points to a block of memory that was not previously
allocated by t_alloc.
On failure, t_errno may be set to the following:
[TSYSERR] A system error has occurred during execution
of this function.
See Also
intro(NSL), t_alloc(NSL).
Network Programmer's Guide.
Diagnostics
The t_free function returns 0 on success and -1 on failure,
and t_errno is set to indicate the error.
Standards Conformance
t_free is conformant with:
AT&T SVID Issue 2, Select Code 307-127.
(printed 6/18/89)