vrb_data_len(3) return the length of data

LIBRARY

-lvrb

SYNOPSIS

#include <vrb.h>

size_t vrb_data_len(vrb_p vrb);

DESCRIPTION

vrb_data_len returns the total length of data presently in the given virtual ring buffer.

ARGUMENTS

vrb_p vrb
specifies the virtual ring buffer to obtain the data length of. If a NULL or invalid pointer is given, results are unpredictable and are likely to be disasterous.

RETURN VALUE

size_t
The total data length of the virtual ring buffer is returned.