9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.io; 27 28 import java.nio.channels.FileChannel; 29 import java.util.concurrent.atomic.AtomicBoolean; 30 import jdk.internal.misc.JavaIORandomAccessFileAccess; 31 import jdk.internal.misc.SharedSecrets; 32 import sun.nio.ch.FileChannelImpl; 33 34 35 /** 36 * Instances of this class support both reading and writing to a 37 * random access file. A random access file behaves like a large 38 * array of bytes stored in the file system. There is a kind of cursor, 39 * or index into the implied array, called the <em>file pointer</em>; 40 * input operations read bytes starting at the file pointer and advance 41 * the file pointer past the bytes read. If the random access file is 42 * created in read/write mode, then output operations are also available; 43 * output operations write bytes starting at the file pointer and advance 44 * the file pointer past the bytes written. Output operations that write 45 * past the current end of the implied array cause the array to be 46 * extended. The file pointer can be read by the 47 * {@code getFilePointer} method and set by the {@code seek} 48 * method. 49 * <p> 50 * It is generally true of all the reading routines in this class that 51 * if end-of-file is reached before the desired number of bytes has been | 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.io; 27 28 import java.nio.channels.FileChannel; 29 30 import jdk.internal.access.JavaIORandomAccessFileAccess; 31 import jdk.internal.access.SharedSecrets; 32 import sun.nio.ch.FileChannelImpl; 33 34 35 /** 36 * Instances of this class support both reading and writing to a 37 * random access file. A random access file behaves like a large 38 * array of bytes stored in the file system. There is a kind of cursor, 39 * or index into the implied array, called the <em>file pointer</em>; 40 * input operations read bytes starting at the file pointer and advance 41 * the file pointer past the bytes read. If the random access file is 42 * created in read/write mode, then output operations are also available; 43 * output operations write bytes starting at the file pointer and advance 44 * the file pointer past the bytes written. Output operations that write 45 * past the current end of the implied array cause the array to be 46 * extended. The file pointer can be read by the 47 * {@code getFilePointer} method and set by the {@code seek} 48 * method. 49 * <p> 50 * It is generally true of all the reading routines in this class that 51 * if end-of-file is reached before the desired number of bytes has been |