Fvopt, Fvopt32(3fml)

Name

Fvopt(), Fvopt32() - change flag options of a mapping entry

Synopsis

#include <stdio.h> 
#include "fml.h" 
 
int 
Fvopt(char *cname, int option, char *view) 
 
#include "fml32.h" 
 
int 
Fvopt32(char *cname, int option, char *view)

Description

Fvopt() allows users to specify buffer-to-structure mapping options at run time. cname is a pointer to the name of an element in a view description, view. option specifies the desired setting for the mapping option. Valid options and their meanings are:

Fvopt32() is used for views defined with viewc32 or VIEW32 typed buffers for larger views with more fields.

A thread in a multithreaded application may issue a call to Fvopt() or Fvopt32() while running in any context state, including TPINVALIDCONTEXT.

Return Values

This function returns -1 on error and sets Ferror to indicate the error condition.

Errors

Under the following conditions, Fvopt() fails and sets Ferror to:

See Also