LIBRARY
-lvrbSYNOPSIS
#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 vrbspecifies 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_tThe total data length of the virtual ring buffer is returned.