vrb_take
specifies how much data has been obtained from the data portion of the
virtual ring buffer by the caller.
The caller will have called
vrb_data_len(3)
and
vrb_data_ptr(3)
to get the length of data in the buffer and a pointer to it,
and having extract some data from the buffer, starting from the
pointer obtained and extrating no more that the length obtained.
ARGUMENTS
vrb_p vrb
specifies which virtual ring buffer.
size_t size
specifies the length of data that has been obtained from the
virtual ring buffer by the caller.
RETURN VALUE
int
On success, 0 is returned.
On error, -1 is returned.
ERRORS
If an error is returned, then
errno
will have one of the following values:
EINVAL
An invalid virtual ring buffer pointer was specified.
ENOSPC
The specified length is greater than the data in the
virtual ring buffer.