Examples of java.nio.MappedByteBuffer.limit()

java.nio.MappedByteBuffer.limit()

          
        size = Math.min(size, fc.size()-offset);
        MappedByteBuffer buf = fc.map(MapMode.READ_ONLY, offset, size);
        for(DirectByteBuffer b : buffers)
        {
          buf.limit(buf.position()+b.remaining(DirectByteBuffer.SS_FILE));
          b.put(DirectByteBuffer.SS_FILE, buf);
        }
          
        
      } else {

View Full Code Here

     * @tests java.nio.channels.FileChannel#map(MapMode,long,long)
     */
    public void test_map_Private_NonZeroPosition() throws IOException {
        MappedByteBuffer mapped = readWriteFileChannel.map(MapMode.PRIVATE, 10,
                CONTENT_LENGTH - 10);
        assertEquals(CONTENT_LENGTH - 10, mapped.limit());
        assertEquals(CONTENT_LENGTH - 10, mapped.capacity());
        assertEquals(0, mapped.position());
    }


    /**

View Full Code Here

    public void test_map_ReadWrite_NonZeroPosition() throws IOException {
        // test position non-zero
        writeDataToFile(fileOfReadWriteFileChannel);
        MappedByteBuffer mapped = readWriteFileChannel.map(MapMode.READ_WRITE,
                10, CONTENT_LENGTH - 10);
        assertEquals(CONTENT_LENGTH - 10, mapped.limit());
        assertEquals(CONTENT.length() - 10, mapped.capacity());
        assertEquals(0, mapped.position());
        mapped.put(TEST_BYTES);
        ByteBuffer checkBuffer = ByteBuffer.allocate(CONTENT_LENGTH);
        readWriteFileChannel.read(checkBuffer);

View Full Code Here

            MappedByteBuffer mapped = readOnlyFileChannel.map(MapMode.READ_ONLY,
                    sizes[i], CONTENT_LEN);
            assertEquals("Incorrectly mapped file channel for " + sizes[i]
                    + " position (capacity)", CONTENT_LEN, mapped.capacity());
            assertEquals("Incorrectly mapped file channel for " + sizes[i]
                    + " position (limit)", CONTENT_LEN, mapped.limit());
            assertEquals("Incorrectly mapped file channel for " + sizes[i]
                    + " position (position)", 0, mapped.position());


            // map not change channel's position
            assertEquals(0, readOnlyFileChannel.position());

View Full Code Here

        assertEquals(0, readWriteFileChannel.size());
        MappedByteBuffer mapped = readWriteFileChannel.map(MapMode.READ_ONLY,
                0, CONTENT_LENGTH);
        assertEquals(CONTENT_LENGTH, readWriteFileChannel.size());
        readOnlyFileChannel.close();
        assertEquals(CONTENT_LENGTH, mapped.limit());
    }


    /**
     * @tests java.nio.channels.FileChannel#map(MapMode,long,long)
     */

View Full Code Here

    public void test_map_Private_CloseChannel() throws IOException {
        MappedByteBuffer mapped = readWriteFileChannel.map(MapMode.PRIVATE, 0,
                CONTENT_LENGTH);
        readWriteFileChannel.close();
        mapped.put(TEST_BYTES);
        assertEquals(CONTENT_LENGTH, mapped.limit());
        assertEquals("test".length(), mapped.position());
    }


    /**
     * @tests java.nio.channels.FileChannel#map(MapMode,long,long)

View Full Code Here

            mapped.put(TEST_BYTES);
            fail("should throw ReadOnlyBufferException.");
        } catch (ReadOnlyBufferException ex) {
            // expected;
        }
        assertEquals(CONTENT_LENGTH, mapped.limit());
        assertEquals(CONTENT_LENGTH, mapped.capacity());
        assertEquals(0, mapped.position());


        // try to get a readonly map from read/write channel
        writeDataToFile(fileOfReadWriteFileChannel);

View Full Code Here


        // try to get a readonly map from read/write channel
        writeDataToFile(fileOfReadWriteFileChannel);
        mapped = readWriteFileChannel.map(MapMode.READ_ONLY, 0, CONTENT
                .length());
        assertEquals(CONTENT_LENGTH, mapped.limit());
        assertEquals(CONTENT_LENGTH, mapped.capacity());
        assertEquals(0, mapped.position());


        // map not change channel's position
        assertEquals(0, readOnlyFileChannel.position());

View Full Code Here

     */
    public void test_map_ReadOnly_NonZeroPosition() throws IOException {
        this.writeDataToFile(fileOfReadOnlyFileChannel);
        MappedByteBuffer mapped = readOnlyFileChannel.map(MapMode.READ_ONLY,
                10, CONTENT_LENGTH - 10);
        assertEquals(CONTENT_LENGTH - 10, mapped.limit());
        assertEquals(CONTENT_LENGTH - 10, mapped.capacity());
        assertEquals(0, mapped.position());
    }


    /**

View Full Code Here

     */
    public void test_map_Private() throws IOException {
        this.writeDataToFile(fileOfReadWriteFileChannel);
        MappedByteBuffer mapped = readWriteFileChannel.map(MapMode.PRIVATE, 0,
                CONTENT_LENGTH);
        assertEquals(CONTENT_LENGTH, mapped.limit());
        // test copy on write if private
        ByteBuffer returnByPut = mapped.put(TEST_BYTES);
        assertSame(returnByPut, mapped);
        ByteBuffer checkBuffer = ByteBuffer.allocate(CONTENT_LENGTH);
        mapped.force();

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.