Examples with DirectByteBuffer java.nio.DirectByteBuffer used on opensource projects

Example 6 with DirectByteBuffer

use of java.nio.DirectByteBuffer in project j2objc by google.

the class DirectFloatBufferTest method testJNIAccessByAddress.

// http://b/28964300
public void testJNIAccessByAddress() throws Exception {
    DirectByteBuffer directByteBuffer = (DirectByteBuffer) ByteBuffer.allocateDirect(10);
    directByteBuffer.put((byte) 'a');
    FloatBuffer floatBuffer = directByteBuffer.asFloatBuffer();
    long byteBufferBasePointer = NIOAccess.getBasePointer(directByteBuffer);
    long floatBufferBasePointer = NIOAccess.getBasePointer(floatBuffer);
    assertEquals(byteBufferBasePointer, floatBufferBasePointer);
    // Check if the NIOAccess method adds up the current position value.
    floatBuffer.put((float) 1);
    assertEquals(floatBufferBasePointer + Float.BYTES, NIOAccess.getBasePointer(floatBuffer));
}

Example 7 with DirectByteBuffer

use of java.nio.DirectByteBuffer in project j2objc by google.

the class DirectLongBufferTest method testJNIAccessByAddress.

// http://b/28964300
public void testJNIAccessByAddress() throws Exception {
    DirectByteBuffer directByteBuffer = (DirectByteBuffer) ByteBuffer.allocateDirect(10);
    directByteBuffer.put((byte) 'a');
    LongBuffer longBuffer = directByteBuffer.asLongBuffer();
    long byteBufferBasePointer = NIOAccess.getBasePointer(directByteBuffer);
    long longBufferBasePointer = NIOAccess.getBasePointer(longBuffer);
    assertEquals(byteBufferBasePointer, longBufferBasePointer);
    // Check if the NIOAccess method adds up the current position value.
    longBuffer.put(1L);
    assertEquals(longBufferBasePointer + Long.BYTES, NIOAccess.getBasePointer(longBuffer));
}