CDE

NAME

tt_message_arg_xval_set − serialize and set data into an existing message 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 service 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

Tttt_c(5)