Write bytes to a stream ifrom the supplied I/O vector.
@param self This stream. @param iov A pointer to the I/O vector. @param iovcnt The length of the I/O vector. @return The bytes written, or -1 on error (errno will be set).
See Implementation
Write bytes to a stream ifrom the supplied I/O vector.
@param self This stream. @param iov A pointer to the I/O vector. @param iovcnt The length of the I/O vector. @return The bytes written, or -1 on error (errno will be set).