org.eclipse.linuxtools.lttng.jni/src/org/eclipse/linuxtools/internal/lttng/jni/common/Jni_C_Pointer_And_Library_Id.java

   1 package org.eclipse.linuxtools.internal.lttng.jni.common;
   2
   3 public class Jni_C_Pointer_And_Library_Id extends Jni_C_Pointer {
   4
   5         // *** Library Id
   6         // Needed to know which library we need to make our functions call in case several are loaded
   7         // This make possible to use several different trace version at the same time
   8         private int libraryId = -1;
   9
  10         /**
  11      * Default constructor.<p>
  12      *
  13      * Note : Pointer will be set to a 64bits "NULL" and Id -1.
  14      */
  15     public Jni_C_Pointer_And_Library_Id() {
  16         super();
  17         libraryId = -1;
  18     }
  19
  20     /**
  21      * Constructor with parameters for 64bits pointers and library handle id.
  22      *
  23      * @param newPtr    long-converted (64 bits) C pointer.
  24      * @param newHandle a valid library id as int
  25      */
  26     public Jni_C_Pointer_And_Library_Id(int newId, long newPtr) {
  27         super(newPtr);
  28         libraryId = newId;
  29     }
  30
  31     /**
  32      * Constructor with parameters for 32bits pointers and library handle id.
  33      *
  34      * @param newPtr    int-converted (32 bits) C pointer.
  35      * @param newHandle a valid library id as int
  36      */
  37     public Jni_C_Pointer_And_Library_Id(int newId, int newPtr) {
  38         super(newPtr);
  39         libraryId = newId;
  40     }
  41
  42     /**
  43      * Copy constructor.<p>
  44      *
  45      * @param oldPointerAndId   The old object to copy from.
  46      */
  47     public Jni_C_Pointer_And_Library_Id(Jni_C_Pointer_And_Library_Id oldPointerAndId) {
  48         super(oldPointerAndId.ptr);
  49         libraryId = oldPointerAndId.libraryId;
  50     }
  51
  52     /**
  53      * Get the library handle id currently in use.<p>
  54      * Id is used to tell the C which version of the functions to call.<p>
  55      *
  56      * @return The current id
  57      */
  58     public int getLibraryId() {
  59                 return libraryId;
  60         }
  61
  62     /**
  63      * Set a new library id.<p>
  64      * Id is used to tell the C which version of the functions to call.<p>
  65      *
  66      * @param newHandleId       The new Id to use (must be a valid id for the C library).
  67      */
  68         public void setLibraryId(int newId) {
  69                 this.libraryId = newId;
  70         }
  71 }