tt_message_arg_xval_set(library call) tt_message_arg_xval_set(library call)
NAMEtt_message_arg_xval_set — serialize and set data into an existing mes‐
sage argument
SYNOPSIS
#include <Tt/tt_c.h>
Tt_status tt_message_arg_xval_set(
Tt_message m,
int n,
xdrproc_t xdr_proc,
void *value);
DESCRIPTION
The tt_message_arg_xval_set function serializes and sets data into an
existing message argument.
The m argument is the opaque handle for the message involved in this
operation. The n argument is the number of the argument to be changed.
The first argument is numbered zero. The xdr_proc argument causes
tt_message_arg_xval_set to serialize the data pointed to by value and
store it as a byte string value of the nth argument of the message.
The value argument is the data to be serialized.
RETURN VALUE
Upon successful completion, the tt_message_arg_xval_set function
returns the status of the operation as one of the following Tt_status
values:
TT_OK The operation completed successfully.
TT_ERR_MODE
The specified Tt_mode is invalid.
TT_ERR_NOMP
The ttsession(1) process is not running and the ToolTalk ser‐
vice cannot restart it.
TT_ERR_POINTER
The pointer passed does not point to an object of the correct
type for this operation.
TT_ERR_NUM
The integer value passed was invalid (out of range).
TT_ERR_XDR
The XDR procedure failed on the given data, or evaluated to a
zero-length expression.
SEE ALSO
Tt/tt_c.h - Tttt_c(5)
tt_message_arg_xval_set(library call)
