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Updated: Thursday, June 13, 2019
 
 

tt_message_context_xval (3)

Name

tt_message_context_xval - sage's context

Synopsis

#include <Tt/tt_c.h>
Tt_status tt_message_context_xval(Tt_message m,
const char *slotname,
xdrproc_t xdr_proc,
void **value);

Description

ToolTalk Functions                                  tt_message_context_xval(3)



NAME
       tt_message_context_xval - retrieve and deserialize the data from a mes-
       sage's context

SYNOPSIS
       #include <Tt/tt_c.h>
       Tt_status tt_message_context_xval(Tt_message m,
                                         const char *slotname,
                                         xdrproc_t xdr_proc,
                                         void **value);

DESCRIPTION
       The tt_message_context_xval() function retrieves and  deserializes  the
       data from a message's context.

       The  m  argument  is the opaque handle for the message involved in this
       operation.  The slotname argument describes the context  of  this  mes-
       sage.   The xdr_proc argument points to the XDR procedure to be used to
       deserialize the data in the nth argument into newly allocated  storage,
       the  address  of  which  will be stored in the pointer whose address is
       value.

       The value argument is the data to be deserialized.

RETURN VALUE
       Upon  successful  completion,  the  tt_message_context_xval()  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 cor-
                  rect 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.

APPLICATION USAGE
       The  allocation  calls  are  made  by the XDR procedure; therefore, any
       storage allocated is not allocated from the ToolTalk allocation  stack.
       The application should use the xdr_free(3) call to free this storage.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | library/tooltalk |
       +---------------+------------------+
       |Stability      | Committed        |
       +---------------+------------------+
SEE ALSO
       tt_c(5).




ToolTalk 1.3                     1 March 1996
                                                    tt_message_context_xval(3)