示例#1
0
  protected <T extends CPPObject> Pointer<T> newCPPInstance(
      T instance, final Type type, int constructorId, Object... args) {
    Pointer<T> peer = null;
    try {
      final Class<T> typeClass = Utils.getClass(type);
      NativeLibrary lib = BridJ.getNativeLibrary(typeClass);

      if (BridJ.debug)
        info("Creating C++ instance of type " + type + " with args " + Arrays.asList(args));
      Pointer.Releaser releaser = newCPPReleaser(type, typeClass, lib);

      long size = sizeOf(type, null);
      peer = (Pointer) Pointer.allocateBytes(PointerIO.getInstance(type), size, releaser).as(type);

      DynamicFunction constructor =
          constructorId == SKIP_CONSTRUCTOR
              ? null
              : getConstructor(typeClass, type, lib, constructorId);

      if (lib != null && CPPObject.class.isAssignableFrom(typeClass)) {
        installRegularVTablePtr(type, lib, peer);
      } else {
        // TODO ObjCObject : call alloc on class type !!
      }

      // Setting the C++ template parameters in the instance :
      int templateParametersCount = getTemplateParametersCount(typeClass);
      if (templateParametersCount > 0) {
        Object[] templateArgs = new Object[templateParametersCount];
        System.arraycopy(args, 0, templateArgs, 0, templateParametersCount);
        setTemplateParameters(instance, typeClass, templateArgs);
      }

      // Calling the constructor with the non-template parameters :
      if (constructor != null) {
        Object[] consThisArgs = new Object[args.length - templateParametersCount + 1];
        consThisArgs[0] = peer;
        System.arraycopy(
            args, templateParametersCount, consThisArgs, 1, args.length - templateParametersCount);

        constructor.apply(consThisArgs);
      }

      // Install synthetic virtual table and associate the Java instance to the corresponding native
      // pointer :
      if (CPPObject.class.isAssignableFrom(typeClass)) {
        if (installSyntheticVTablePtr(type, lib, peer))
          BridJ.setJavaObjectFromNativePeer(peer.getPeer(), instance);
      } else {
        // TODO ObjCObject : call alloc on class type !!
      }
      return peer;
    } catch (Exception ex) {
      ex.printStackTrace();
      if (peer != null) {
        peer.release();
      }
      throw new RuntimeException("Failed to allocate new instance of type " + type, ex);
    }
  }
示例#2
0
文件: Bpm200.java 项目: emorency/onyx
    private void comm(Pointer<hid_device> device) {
      log.debug("starting comm loop");
      Pointer<Byte> data = Pointer.allocateBytes(1024);
      HidapiLibrary.hid_set_nonblocking(device, 1);
      while (loop && connected) {
        int result = HidapiLibrary.hid_read(device, data, 1024);
        if (result > 0) {
          byte bytes[] = data.getBytes(result);
          messageQueue.addAll(parse(result, bytes));
        }

        BpmMessage msg = writeQueue.poll();
        if (msg != null) {
          encode(msg, writeBuffer);
          try {
            HidapiLibrary.hid_write(device, Pointer.pointerToBytes(writeBuffer), 9);
          } finally {
            writeBuffer.rewind();
          }
        }
      }
    }