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   BEA Tuxedo FML Function Reference

Funused(), Funused32() - return number of unused bytes in fielded buffer

#include <stdio.h> 
#include "fml.h" 
 
long 
Funused(FBFR *fbfr) 
 
#include "fml32.h" 
 
long 
Funused32(FBFR32 *fbfr)

Funused() returns the amount of space currently unused in the buffer. Space is unused if it contains neither user data nor overhead data such as the header and index.

fbfr is a pointer to a fielded buffer.

Funused32() is used with 32-bit FML.

A thread in a multithreaded application may issue a call to Funused() or Funused32() while running in any context state, including TPINVALIDCONTEXT.

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

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

[FALIGNERR]

"fielded buffer not aligned"
The buffer does not begin on the proper boundary.

[FNOTFLD]

"buffer not fielded"
The buffer is not a fielded buffer or has not been initialized by Finit().

Introduction to FML Functions, Fidxused, Fidxused32(3fml), Fused, Fused32(3fml)