vrb_move3
Read data into a vrb
Usage
#include <vrb.h>
size_t vrb_move(vrb_p target, vrb_p source, size_t size);
Library
-lvrb
Overview
vrb_move moves data from one virtual ring buffer to another, up to the lesser of the available data in the source, the available space in the target, and the maximum size specified.
Arguments
vrb_p target
specifies which virtual ring buffer to put data into.
vrb_p source
specifies which virtual ring buffer to get data from.
size_t size
specifies the maximum length to move, or ~0 for unlimited (all of buffer).
Return value
size_t
If successful, the actual length of data moved is returned. If an error occurs, ~0 is returned.
Errors
If an error is returned, then errno will have the following value:
- EINVAL
-
An invalid virtual ring buffer pointer was specified for either the target or the source.
Releases
Unchanged in 2 releases since Debian 6.0 (Squeeze).