| package xdc.rta; |
| |
| import java.io.IOException; |
| |
| public interface IDataTransport { |
| |
| public void initialize() throws Exception; |
| |
| public void terminate() throws Exception; |
| |
| /** |
| * Reads an array of 8-bit bytes. |
| * |
| * @param b byte array to contain data |
| * @param off index into array where data should start |
| * @param len maximum number of bytes to read |
| * @return bytesRead number of bytes actually read |
| * @throws IOException |
| */ |
| public int read(byte b[], int off, int len) throws IOException; |
| |
| /** |
| * Reads an array of 8-bit bytes with timeout. |
| * |
| * @param buffer array to contain data |
| * @param offset index into array where data should start |
| * @param count number of array elements to read |
| * @param timeout in milliseconds, zero to wait forever, negative to return whatever is avaiable |
| * @return the total number of array elements read into the buffer |
| * @throws IOException if an I/O error occurs |
| */ |
| public int read(byte buffer[], int offset, int count, int timeout) throws IOException; |
| |
| /** |
| * Returns the number of bytes that can be read without blocking. |
| * |
| * @return bytesRead number of bytes in host buffer |
| * @throws IOException |
| */ |
| public int available() throws IOException; |
| |
| } |