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);
}
}
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();
}
}
}
}
