Examples of org.jnetpcap.nio.JNumber

org.jnetpcap.nio.JNumber
A peered number pointer class that stores and retrieves number values from native/direct memory locations. This class facilitates exchange of number values (from bytes to doubles) to various native functions. The key being that these numbers at JNI level can be passed in as pointers and thus allows natives methods to both send and receive values between native and java space. The methods are named similarly like java.lang.Number class, with the exception of existance of setter methods.
Typical usage for JNumber is to use it wherever a function requests a primitive type pointer.
@author Mark Bednarczyk @author Sly Technologies, Inc.

  @SuppressWarnings("deprecation")
  public void testLookupDevAndLookupNetNewAPI() {
    String device = Pcap.lookupDev(errbuf);
    assertNotNull(errbuf.toString(), device);


    JNumber netp = new JNumber(Type.INT);
    JNumber maskp = new JNumber(Type.INT);


    int r = Pcap.lookupNet(device, netp, maskp, errbuf);
    assertEquals(errbuf.toString(), 0, r);


    System.out.printf("device=%s netp=%X maskp=%X errbuf=%s\n", device, netp.intValue(),
        maskp.intValue(), errbuf.toString());
  }

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  @SuppressWarnings("deprecation")
  public void testLookupDevAndLookupNetDeprecatedAPI() {
    String device = Pcap.lookupDev(errbuf);
    assertNotNull(errbuf.toString(), device);


    JNumber netp = new JNumber(Type.INT);
    JNumber maskp = new JNumber(Type.INT);


    int r = Pcap.lookupNet(device, netp, maskp, errbuf);
    assertEquals(errbuf.toString(), 0, r);


    System.out.printf("device=%s netp=%X maskp=%X errbuf=%s\n", device, netp
        .intValue(), maskp.intValue(), errbuf.toString());
  }

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