Pointer.Releaser newCPPReleaser(final Type type) {
try {
final Class<?> typeClass = Utils.getClass(type);
NativeLibrary lib = BridJ.getNativeLibrary(typeClass);
return newCPPReleaser(type, typeClass, lib);
} catch (Throwable th) {
throw new RuntimeException(
"Failed to create a C++ destructor for type " + Utils.toString(type) + " : " + th, th);
}
}
protected boolean installSyntheticVTablePtr(Type type, NativeLibrary library, Pointer<?> peer) {
synchronized (syntheticVirtualTables) {
VTable vtable = syntheticVirtualTables.get(type);
if (vtable == null) {
if (!typesThatDontNeedASyntheticVirtualTable.contains(type)) {
List<VirtMeth> methods = new ArrayList<VirtMeth>();
listVirtualMethods(Utils.getClass(type), methods);
boolean needsASyntheticVirtualTable = false;
for (VirtMeth method : methods)
if (!Modifier.isNative(method.implementation.getModifiers())) {
needsASyntheticVirtualTable = true;
break;
}
if (needsASyntheticVirtualTable) {
Type parentType = Utils.getParent(type);
Pointer<Pointer> parentVTablePtr = null;
if (CPPObject.class.isAssignableFrom(Utils.getClass(parentType))) {
parentVTablePtr = peer.getPointer(Pointer.class);
if (BridJ.debug) {
BridJ.info(
"Found parent virtual table pointer = "
+ ptrToString(parentVTablePtr, library));
/*Pointer<Pointer> expectedParentVTablePtr = pointerToAddress(getVirtualTable(parentType, library), Pointer.class);
if (expectedParentVTablePtr != null && !Utils.eq(parentVTablePtr, expectedParentVTablePtr))
BridJ.warning("Weird parent virtual table pointer : expected " + ptrToString(expectedParentVTablePtr, library) + ", got " + ptrToString(parentVTablePtr, library));
*/
}
// parentVTablePtr = pointerToAddress(getVirtualTable(parentType, library),
// Pointer.class);
}
syntheticVirtualTables.put(
type, vtable = synthetizeVirtualTable(type, parentVTablePtr, methods, library));
} else {
typesThatDontNeedASyntheticVirtualTable.add(type);
}
}
}
if (vtable != null) {
if (BridJ.debug)
BridJ.info(
"Installing synthetic vtable pointer "
+ vtable.ptr
+ " to instance at "
+ peer
+ " (type = "
+ Utils.toString(type)
+ ", "
+ vtable.callbacks.size()
+ " callbacks)");
peer.setPointer(vtable.ptr);
return vtable.ptr != null;
} else return false;
}
}
long getVirtualTable(Type type, NativeLibrary library) {
Long vtable = vtables.get(type);
if (vtable == null) {
final Class<?> typeClass = Utils.getClass(type);
if (false) {
String className = typeClass.getSimpleName();
String vtableSymbol;
if (Platform.isWindows()) vtableSymbol = "??_7" + className + "@@6B@";
else vtableSymbol = "_ZTV" + className.length() + className;
vtables.put(type, vtable = library.getSymbolAddress(vtableSymbol));
} else {
Symbol symbol =
library.getFirstMatchingSymbol(
new SymbolAccepter() {
public boolean accept(Symbol symbol) {
return symbol.matchesVirtualTable(typeClass);
}
});
if (symbol != null) {
if (BridJ.debug)
info("Registering vtable of " + Utils.toString(type) + " as " + symbol.getName());
// Pointer<Pointer> pp = pointerToAddress(symbol.getAddress(),
// Pointer.class);
//
// for (int i = 0; i < 6; i++) {
// Pointer p = pp.get(i);
//// if (p == null)
//// break;
// String n = p == null ? null :
// library.getSymbolName(p.getPeer());
// info("\tVtable entry " + i + " = " + p + " (" + n + ")");
//// if (n == null)
//// break;
// }
} else if (getVirtualMethodsCount(typeClass) > 0)
error("Failed to find a vtable for type " + Utils.toString(type));
if (symbol != null) {
long address = symbol.getAddress();
vtable = library.isMSVC() ? address : address + 2 * Pointer.SIZE;
} else {
vtable = 0L;
}
vtables.put(type, vtable); // */
}
}
return vtable;
}
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);
}
}
@Override
public <T extends NativeObject> Class<? extends T> getActualInstanceClass(
Pointer<T> pInstance, Type officialType) {
// String className = null;
// For C++ classes in general, take type info at offset -1 of vtable (if first field matches the
// address of a known static or dynamic virtual table) and use it to create the correct
// instance.
// Pointer<?> vptr = pInstance.getPointer(0);
// Symbol symbol = BridJ.getSymbolByAddress(vptr.getPeer());
// if (symbol != null && symbol.isVirtualTable()) {
// if (symbol.enclosingType.matches(officialType))
// return officialType;
//
// try {
// Class<?> type = BridJ.getCPPRuntime().getCPPClass(symbol.enclosingType);
// if (officialType == null || officialType.isAssignableFrom(type))
// return type;
// } catch (ClassNotFoundException ex) {}
// return officialType;
//
// /*long tinf = JNI.get_pointer(ptr - Pointer.SIZE);
// symbol = BridJ.getSymbolByAddress(tinf);
// if (symbol != null && symbol.isTypeInfo()) {
//
// }*/
// }
// For Objective-C classes, use "const char* className = class_getName([yourObject class]);" and
// match to registered classes or more
// Bundle auto-generated type mappings files : bridj::CPPTest=org.bridj.test.cpp.CPPTest
//
return Utils.getClass(officialType);
}
public MethodCallInfo(
Type genericReturnType,
Annotation[] returnAnnotations,
Type[] parameterTypes,
Annotation[][] paramsAnnotations,
boolean prependJNIPointers) {
init(
null,
Utils.getClass(genericReturnType),
genericReturnType,
returnAnnotations,
Utils.getClasses(parameterTypes),
parameterTypes,
paramsAnnotations,
prependJNIPointers,
false,
true);
}
protected boolean matchesConstructor(Type type, java.lang.reflect.Constructor<?> constr) {
if (memberName != SpecialName.Constructor) {
return false;
}
if (!matchesEnclosingType(type)) {
return false;
}
Template temp = Utils.getClass(type).getAnnotation(Template.class);
Annotation[][] anns = constr.getParameterAnnotations();
Type[] parameterTypes = constr.getGenericParameterTypes();
int overrideOffset = Utils.getEnclosedConstructorParametersOffset(constr);
if (!matchesArgs(
parameterTypes, anns, overrideOffset + (temp == null ? 0 : temp.value().length))) {
return false;
}
return true;
}
@Override
public T createReturnInstance() {
try {
Object[] templateParameters = getTemplateParameters(type);
T instance = (T) getCastClass().newInstance();
initialize(instance, SKIP_CONSTRUCTOR, templateParameters);
// setTemplateParameters(instance, typeClass, getTemplateParameters(type));
return instance;
} catch (Throwable th) {
throw new RuntimeException(
"Failed to create a return instance for type " + Utils.toString(type) + " : " + th, th);
}
}
public boolean matchesConstructor(Type type, java.lang.reflect.Constructor<?> constr) {
if (!symbol.contains(Utils.getClass(type).getSimpleName())) {
return false;
}
parse();
try {
if (ref != null) {
return ref.matchesConstructor(type, constr);
}
} catch (Exception ex) {
ex.printStackTrace();
}
return false;
}
protected boolean installRegularVTablePtr(Type type, NativeLibrary library, Pointer<?> peer) {
long vtablePtr = getVirtualTable(type, library);
if (vtablePtr != 0) {
if (BridJ.debug)
BridJ.info(
"Installing regular vtable pointer "
+ Pointer.pointerToAddress(vtablePtr)
+ " to instance at "
+ peer
+ " (type = "
+ Utils.toString(type)
+ ")");
peer.setSizeT(vtablePtr);
return true;
}
return false;
}
CPPDestructor getDestructor(final Class<?> typeClass, Type type, NativeLibrary lib) {
CPPDestructor destructor = destructors.get(type);
if (destructor == null) {
Symbol symbol =
lib.getFirstMatchingSymbol(
new SymbolAccepter() {
public boolean accept(Symbol symbol) {
return symbol.matchesDestructor(typeClass);
}
});
if (BridJ.debug && symbol != null)
info("Registering destructor of " + Utils.toString(type) + " as " + symbol.getName());
if (symbol != null)
destructors.put(
type, destructor = pointerToAddress(symbol.getAddress(), CPPDestructor.class).get());
}
return destructor;
}
protected VTable synthetizeVirtualTable(
Type type, Pointer<Pointer> parentVTablePtr, List<VirtMeth> methods, NativeLibrary library) {
int nMethods = methods.size();
// Pointer<Pointer> parentVTablePtr = pointerToAddress(getVirtualTable(Utils.getParent(type),
// library), Pointer.class);
VTable vtable = new VTable();
vtable.ptr =
allocatePointers(nMethods + 2)
.next(
2); // leave two null pointers at index -2 and -1, to say there's no runtime type
// information available.
Class<?> c = Utils.getClass(type);
for (int iMethod = 0; iMethod < nMethods; iMethod++) {
VirtMeth vm = methods.get(iMethod);
Pointer<?> pMethod;
if (Modifier.isNative(vm.implementation.getModifiers())) {
pMethod = parentVTablePtr == null ? null : parentVTablePtr.get(iMethod);
} else {
try {
MethodCallInfo mci = new MethodCallInfo(vm.implementation, vm.definition);
mci.setDeclaringClass(vm.implementation.getDeclaringClass());
pMethod = createCToJavaCallback(mci, c);
vtable.callbacks.put(vm.implementation, pMethod);
} catch (Throwable th) {
BridJ.error(
"Failed to register overridden method "
+ vm.implementation
+ " for type "
+ type
+ " (original method = "
+ vm.definition
+ ")",
th);
pMethod = null;
}
}
vtable.ptr.set(iMethod, (Pointer) pMethod);
}
return vtable;
}
public ValueType getValueType(
int iParam,
int nParams,
Class<?> c,
Type t,
AnnotatedElement element,
Annotation... directAnnotations) {
boolean isPtr = isAnnotationPresent(Ptr.class, element, directAnnotations);
boolean isCLong = isAnnotationPresent(org.bridj.ann.CLong.class, element, directAnnotations);
Constructor cons = getAnnotation(Constructor.class, element, directAnnotations);
if (isPtr || cons != null || isCLong) {
if (!(c == Long.class || c == Long.TYPE))
throw new RuntimeException(
"Annotation should only be used on a long parameter, not on a " + c.getName());
if (isPtr) {
if (!Platform.is64Bits()) direct = false;
} else if (isCLong) {
if (Platform.CLONG_SIZE != 8) direct = false;
} else if (cons != null) {
isCPlusPlus = true;
startsWithThis = true;
if (iParam != 0)
throw new RuntimeException(
"Annotation "
+ Constructor.class.getName()
+ " cannot have more than one (long) argument");
}
return ValueType.eSizeTValue;
}
if (c == null || c.equals(Void.TYPE)) return ValueType.eVoidValue;
if (c == Integer.class || c == Integer.TYPE) return ValueType.eIntValue;
if (c == Long.class || c == Long.TYPE) {
return !isPtr || Platform.is64Bits() ? ValueType.eLongValue : ValueType.eIntValue;
}
if (c == Short.class || c == Short.TYPE) return ValueType.eShortValue;
if (c == Byte.class || c == Byte.TYPE) return ValueType.eByteValue;
if (c == Boolean.class || c == Boolean.TYPE) return ValueType.eBooleanValue;
if (c == Float.class || c == Float.TYPE) {
usesFloats();
return ValueType.eFloatValue;
}
if (c == char.class || c == Character.TYPE) {
if (Platform.WCHAR_T_SIZE != 2) direct = false;
return ValueType.eWCharValue;
}
if (c == Double.class || c == Double.TYPE) {
usesFloats();
return ValueType.eDoubleValue;
}
if (c == CLong.class) {
direct = false;
return ValueType.eCLongObjectValue;
}
if (c == SizeT.class) {
direct = false;
return ValueType.eSizeTObjectValue;
}
if (c == TimeT.class) {
direct = false;
return ValueType.eTimeTObjectValue;
}
if (Pointer.class.isAssignableFrom(c)) {
direct = false;
CallIO cio = CallIO.Utils.createPointerCallIO(c, t);
if (BridJ.veryVerbose) BridJ.info("CallIO : " + cio);
addCallIO(cio);
return ValueType.ePointerValue;
}
if (c.isArray() && iParam == nParams - 1) {
direct = false;
return ValueType.eEllipsis;
}
if (ValuedEnum.class.isAssignableFrom(c)) {
direct = false;
CallIO cio =
CallIO.Utils.createValuedEnumCallIO(
(Class) Utils.getClass(Utils.getUniqueParameterizedTypeParameter(t)));
if (BridJ.veryVerbose) BridJ.info("CallIO : " + cio);
addCallIO(cio);
return ValueType.eIntFlagSet;
}
if (NativeObject.class.isAssignableFrom(c)) {
Pointer<DCstruct> pStruct = null;
if (StructObject.class.isAssignableFrom(c)) {
StructIO io = StructIO.getInstance(c, t);
try {
pStruct = DyncallStructs.buildDCstruct(io.desc);
} catch (Throwable th) {
BridJ.error(
"Unable to create low-level struct metadata for "
+ Utils.toString(t)
+ " : won't be able to use it as a by-value function argument.",
th);
}
}
addCallIO(new CallIO.NativeObjectHandler((Class<? extends NativeObject>) c, t, pStruct));
direct = false;
return ValueType.eNativeObjectValue;
}
throw new NoSuchElementException(
"No " + ValueType.class.getSimpleName() + " for class " + c.getName());
}
public static Annotations annotations(final Type e) {
return annotations((AnnotatedElement) Utils.getClass(e));
}
DynamicFunction getConstructor(
final Class<?> typeClass, final Type type, NativeLibrary lib, int constructorId) {
Pair<Type, Integer> key = new Pair<Type, Integer>(type, constructorId);
DynamicFunction constructor = constructors.get(key);
if (constructor == null) {
try {
final Constructor<?> constr;
try {
constr = findConstructor(typeClass, constructorId, true);
if (debug) BridJ.info("Found constructor for " + Utils.toString(type) + " : " + constr);
} catch (NoSuchMethodException ex) {
if (debug) BridJ.info("No constructor for " + Utils.toString(type));
return null;
}
Symbol symbol =
lib == null
? null
: lib.getFirstMatchingSymbol(
new SymbolAccepter() {
public boolean accept(Symbol symbol) {
return symbol.matchesConstructor(
constr.getDeclaringClass() == Utils.getClass(type)
? type
: constr.getDeclaringClass() /* TODO */,
constr);
}
});
if (symbol == null) {
if (debug)
BridJ.info("No matching constructor for " + Utils.toString(type) + " (" + constr + ")");
return null;
}
if (debug) info("Registering constructor " + constr + " as " + symbol.getName());
// TODO do something with these args !
int templateParametersCount = getTemplateParametersCount(typeClass);
Class<?>[] consParamTypes = constr.getParameterTypes();
Class<?>[] consThisParamTypes =
new Class[consParamTypes.length + 1 - templateParametersCount];
consThisParamTypes[0] = Pointer.class;
System.arraycopy(
consParamTypes,
templateParametersCount,
consThisParamTypes,
1,
consParamTypes.length - templateParametersCount);
DynamicFunctionFactory constructorFactory =
getDynamicFunctionFactory(lib, Style.ThisCall, void.class, consThisParamTypes);
constructor = constructorFactory.newInstance(pointerToAddress(symbol.getAddress()));
constructors.put(key, constructor);
} catch (Throwable th) {
th.printStackTrace();
throw new RuntimeException(
"Unable to create constructor " + constructorId + " for " + type + " : " + th, th);
}
}
return constructor;
}
