// jni.cc - JNI implementation, including the jump table.
-/* Copyright (C) 1998, 1999 Cygnus Solutions
+/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation
This file is part of libgcj.
#include <config.h>
+#include <stdio.h>
#include <stddef.h>
+#include <string.h>
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <java-assert.h>
#include <jni.h>
+#ifdef ENABLE_JVMPI
+#include <jvmpi.h>
+#endif
+
+#include <java/lang/Class.h>
+#include <java/lang/ClassLoader.h>
+#include <java/lang/Throwable.h>
+#include <java/lang/ArrayIndexOutOfBoundsException.h>
+#include <java/lang/StringIndexOutOfBoundsException.h>
+#include <java/lang/UnsatisfiedLinkError.h>
+#include <java/lang/InstantiationException.h>
+#include <java/lang/NoSuchFieldError.h>
+#include <java/lang/NoSuchMethodError.h>
+#include <java/lang/reflect/Constructor.h>
+#include <java/lang/reflect/Method.h>
+#include <java/lang/reflect/Modifier.h>
+#include <java/lang/OutOfMemoryError.h>
+#include <java/lang/Integer.h>
+#include <java/lang/ThreadGroup.h>
+#include <java/lang/Thread.h>
+#include <java/lang/IllegalAccessError.h>
+#include <java/nio/DirectByteBufferImpl.h>
+#include <java/util/IdentityHashMap.h>
+#include <gnu/gcj/RawData.h>
+
+#include <gcj/method.h>
#include <gcj/field.h>
-static jclass
-_Jv_JNI_GetSuperclass (JNIEnv *, jclass clazz)
+#include <java-interp.h>
+#include <java-threads.h>
+
+using namespace gcj;
+
+// This enum is used to select different template instantiations in
+// the invocation code.
+enum invocation_type
+{
+ normal,
+ nonvirtual,
+ static_type,
+ constructor
+};
+
+// Forward declarations.
+extern struct JNINativeInterface _Jv_JNIFunctions;
+extern struct JNIInvokeInterface _Jv_JNI_InvokeFunctions;
+
+// Number of slots in the default frame. The VM must allow at least
+// 16.
+#define FRAME_SIZE 32
+
+// Mark value indicating this is an overflow frame.
+#define MARK_NONE 0
+// Mark value indicating this is a user frame.
+#define MARK_USER 1
+// Mark value indicating this is a system frame.
+#define MARK_SYSTEM 2
+
+// This structure is used to keep track of local references.
+struct _Jv_JNI_LocalFrame
+{
+ // This is true if this frame object represents a pushed frame (eg
+ // from PushLocalFrame).
+ int marker : 2;
+
+ // Number of elements in frame.
+ int size : 30;
+
+ // Next frame in chain.
+ _Jv_JNI_LocalFrame *next;
+
+ // The elements. These are allocated using the C "struct hack".
+ jobject vec[0];
+};
+
+// This holds a reference count for all local references.
+static java::util::IdentityHashMap *local_ref_table;
+// This holds a reference count for all global references.
+static java::util::IdentityHashMap *global_ref_table;
+
+// The only VM.
+static JavaVM *the_vm;
+
+#ifdef ENABLE_JVMPI
+// The only JVMPI interface description.
+static JVMPI_Interface _Jv_JVMPI_Interface;
+
+static jint
+jvmpiEnableEvent (jint event_type, void *)
+{
+ switch (event_type)
+ {
+ case JVMPI_EVENT_OBJECT_ALLOC:
+ _Jv_JVMPI_Notify_OBJECT_ALLOC = _Jv_JVMPI_Interface.NotifyEvent;
+ break;
+
+ case JVMPI_EVENT_THREAD_START:
+ _Jv_JVMPI_Notify_THREAD_START = _Jv_JVMPI_Interface.NotifyEvent;
+ break;
+
+ case JVMPI_EVENT_THREAD_END:
+ _Jv_JVMPI_Notify_THREAD_END = _Jv_JVMPI_Interface.NotifyEvent;
+ break;
+
+ default:
+ return JVMPI_NOT_AVAILABLE;
+ }
+
+ return JVMPI_SUCCESS;
+}
+
+static jint
+jvmpiDisableEvent (jint event_type, void *)
+{
+ switch (event_type)
+ {
+ case JVMPI_EVENT_OBJECT_ALLOC:
+ _Jv_JVMPI_Notify_OBJECT_ALLOC = NULL;
+ break;
+
+ default:
+ return JVMPI_NOT_AVAILABLE;
+ }
+
+ return JVMPI_SUCCESS;
+}
+#endif
+
+\f
+
+void
+_Jv_JNI_Init (void)
+{
+ local_ref_table = new java::util::IdentityHashMap;
+ global_ref_table = new java::util::IdentityHashMap;
+
+#ifdef ENABLE_JVMPI
+ _Jv_JVMPI_Interface.version = 1;
+ _Jv_JVMPI_Interface.EnableEvent = &jvmpiEnableEvent;
+ _Jv_JVMPI_Interface.DisableEvent = &jvmpiDisableEvent;
+ _Jv_JVMPI_Interface.EnableGC = &_Jv_EnableGC;
+ _Jv_JVMPI_Interface.DisableGC = &_Jv_DisableGC;
+ _Jv_JVMPI_Interface.RunGC = &_Jv_RunGC;
+#endif
+}
+
+// Tell the GC that a certain pointer is live.
+static void
+mark_for_gc (jobject obj, java::util::IdentityHashMap *ref_table)
+{
+ JvSynchronize sync (ref_table);
+
+ using namespace java::lang;
+ Integer *refcount = (Integer *) ref_table->get (obj);
+ jint val = (refcount == NULL) ? 0 : refcount->intValue ();
+ // FIXME: what about out of memory error?
+ ref_table->put (obj, new Integer (val + 1));
+}
+
+// Unmark a pointer.
+static void
+unmark_for_gc (jobject obj, java::util::IdentityHashMap *ref_table)
+{
+ JvSynchronize sync (ref_table);
+
+ using namespace java::lang;
+ Integer *refcount = (Integer *) ref_table->get (obj);
+ JvAssert (refcount);
+ jint val = refcount->intValue () - 1;
+ JvAssert (val >= 0);
+ if (val == 0)
+ ref_table->remove (obj);
+ else
+ // FIXME: what about out of memory error?
+ ref_table->put (obj, new Integer (val));
+}
+
+// "Unwrap" some random non-reference type. This exists to simplify
+// other template functions.
+template<typename T>
+static T
+unwrap (T val)
+{
+ return val;
+}
+
+// Unwrap a weak reference, if required.
+template<typename T>
+static T *
+unwrap (T *obj)
+{
+ using namespace gnu::gcj::runtime;
+ // We can compare the class directly because JNIWeakRef is `final'.
+ // Doing it this way is much faster.
+ if (obj == NULL || obj->getClass () != &JNIWeakRef::class$)
+ return obj;
+ JNIWeakRef *wr = reinterpret_cast<JNIWeakRef *> (obj);
+ return reinterpret_cast<T *> (wr->get ());
+}
+
+\f
+
+static jobject
+(JNICALL _Jv_JNI_NewGlobalRef) (JNIEnv *, jobject obj)
+{
+ // This seems weird but I think it is correct.
+ obj = unwrap (obj);
+ mark_for_gc (obj, global_ref_table);
+ return obj;
+}
+
+static void
+(JNICALL _Jv_JNI_DeleteGlobalRef) (JNIEnv *, jobject obj)
+{
+ // This seems weird but I think it is correct.
+ obj = unwrap (obj);
+ unmark_for_gc (obj, global_ref_table);
+}
+
+static void
+(JNICALL _Jv_JNI_DeleteLocalRef) (JNIEnv *env, jobject obj)
+{
+ _Jv_JNI_LocalFrame *frame;
+
+ // This seems weird but I think it is correct.
+ obj = unwrap (obj);
+
+ for (frame = env->locals; frame != NULL; frame = frame->next)
+ {
+ for (int i = 0; i < frame->size; ++i)
+ {
+ if (frame->vec[i] == obj)
+ {
+ frame->vec[i] = NULL;
+ unmark_for_gc (obj, local_ref_table);
+ return;
+ }
+ }
+
+ // Don't go past a marked frame.
+ JvAssert (frame->marker == MARK_NONE);
+ }
+
+ JvAssert (0);
+}
+
+static jint
+(JNICALL _Jv_JNI_EnsureLocalCapacity) (JNIEnv *env, jint size)
+{
+ // It is easier to just always allocate a new frame of the requested
+ // size. This isn't the most efficient thing, but for now we don't
+ // care. Note that _Jv_JNI_PushLocalFrame relies on this right now.
+
+ _Jv_JNI_LocalFrame *frame;
+ try
+ {
+ frame = (_Jv_JNI_LocalFrame *) _Jv_Malloc (sizeof (_Jv_JNI_LocalFrame)
+ + size * sizeof (jobject));
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ return JNI_ERR;
+ }
+
+ frame->marker = MARK_NONE;
+ frame->size = size;
+ memset (&frame->vec[0], 0, size * sizeof (jobject));
+ frame->next = env->locals;
+ env->locals = frame;
+
+ return 0;
+}
+
+static jint
+(JNICALL _Jv_JNI_PushLocalFrame) (JNIEnv *env, jint size)
+{
+ jint r = _Jv_JNI_EnsureLocalCapacity (env, size);
+ if (r < 0)
+ return r;
+
+ // The new frame is on top.
+ env->locals->marker = MARK_USER;
+
+ return 0;
+}
+
+static jobject
+(JNICALL _Jv_JNI_NewLocalRef) (JNIEnv *env, jobject obj)
+{
+ // This seems weird but I think it is correct.
+ obj = unwrap (obj);
+
+ // Try to find an open slot somewhere in the topmost frame.
+ _Jv_JNI_LocalFrame *frame = env->locals;
+ bool done = false, set = false;
+ for (; frame != NULL && ! done; frame = frame->next)
+ {
+ for (int i = 0; i < frame->size; ++i)
+ {
+ if (frame->vec[i] == NULL)
+ {
+ set = true;
+ done = true;
+ frame->vec[i] = obj;
+ break;
+ }
+ }
+
+ // If we found a slot, or if the frame we just searched is the
+ // mark frame, then we are done.
+ if (done || frame == NULL || frame->marker != MARK_NONE)
+ break;
+ }
+
+ if (! set)
+ {
+ // No slots, so we allocate a new frame. According to the spec
+ // we could just die here. FIXME: return value.
+ _Jv_JNI_EnsureLocalCapacity (env, 16);
+ // We know the first element of the new frame will be ok.
+ env->locals->vec[0] = obj;
+ }
+
+ mark_for_gc (obj, local_ref_table);
+ return obj;
+}
+
+static jobject
+(JNICALL _Jv_JNI_PopLocalFrame) (JNIEnv *env, jobject result, int stop)
+{
+ _Jv_JNI_LocalFrame *rf = env->locals;
+
+ bool done = false;
+ while (rf != NULL && ! done)
+ {
+ for (int i = 0; i < rf->size; ++i)
+ if (rf->vec[i] != NULL)
+ unmark_for_gc (rf->vec[i], local_ref_table);
+
+ // If the frame we just freed is the marker frame, we are done.
+ done = (rf->marker == stop);
+
+ _Jv_JNI_LocalFrame *n = rf->next;
+ // When N==NULL, we've reached the stack-allocated frame, and we
+ // must not free it. However, we must be sure to clear all its
+ // elements, since we might conceivably reuse it.
+ if (n == NULL)
+ {
+ memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
+ break;
+ }
+
+ _Jv_Free (rf);
+ rf = n;
+ }
+
+ // Update the local frame information.
+ env->locals = rf;
+
+ return result == NULL ? NULL : _Jv_JNI_NewLocalRef (env, result);
+}
+
+static jobject
+(JNICALL _Jv_JNI_PopLocalFrame) (JNIEnv *env, jobject result)
+{
+ return _Jv_JNI_PopLocalFrame (env, result, MARK_USER);
+}
+
+// Make sure an array's type is compatible with the type of the
+// destination.
+template<typename T>
+static bool
+_Jv_JNI_check_types (JNIEnv *env, JArray<T> *array, jclass K)
+{
+ jclass klass = array->getClass()->getComponentType();
+ if (__builtin_expect (klass != K, false))
+ {
+ env->ex = new java::lang::IllegalAccessError ();
+ return false;
+ }
+ else
+ return true;
+}
+
+// Pop a `system' frame from the stack. This is `extern "C"' as it is
+// used by the compiler.
+extern "C" void
+_Jv_JNI_PopSystemFrame (JNIEnv *env)
+{
+ _Jv_JNI_PopLocalFrame (env, NULL, MARK_SYSTEM);
+
+ if (env->ex)
+ {
+ jthrowable t = env->ex;
+ env->ex = NULL;
+ throw t;
+ }
+}
+
+template<typename T> T extract_from_jvalue(jvalue const & t);
+template<> jboolean extract_from_jvalue(jvalue const & jv) { return jv.z; }
+template<> jbyte extract_from_jvalue(jvalue const & jv) { return jv.b; }
+template<> jchar extract_from_jvalue(jvalue const & jv) { return jv.c; }
+template<> jshort extract_from_jvalue(jvalue const & jv) { return jv.s; }
+template<> jint extract_from_jvalue(jvalue const & jv) { return jv.i; }
+template<> jlong extract_from_jvalue(jvalue const & jv) { return jv.j; }
+template<> jfloat extract_from_jvalue(jvalue const & jv) { return jv.f; }
+template<> jdouble extract_from_jvalue(jvalue const & jv) { return jv.d; }
+template<> jobject extract_from_jvalue(jvalue const & jv) { return jv.l; }
+
+
+// This function is used from other template functions. It wraps the
+// return value appropriately; we specialize it so that object returns
+// are turned into local references.
+template<typename T>
+static T
+wrap_value (JNIEnv *, T value)
+{
+ return value;
+}
+
+// This specialization is used for jobject, jclass, jstring, jarray,
+// etc.
+template<typename R, typename T>
+static T *
+wrap_value (JNIEnv *env, T *value)
+{
+ return (value == NULL
+ ? value
+ : (T *) _Jv_JNI_NewLocalRef (env, (jobject) value));
+}
+
+\f
+
+static jint
+(JNICALL _Jv_JNI_GetVersion) (JNIEnv *)
+{
+ return JNI_VERSION_1_4;
+}
+
+static jclass
+(JNICALL _Jv_JNI_DefineClass) (JNIEnv *env, const char *name, jobject loader,
+ const jbyte *buf, jsize bufLen)
+{
+ try
+ {
+ loader = unwrap (loader);
+
+ jstring sname = JvNewStringUTF (name);
+ jbyteArray bytes = JvNewByteArray (bufLen);
+
+ jbyte *elts = elements (bytes);
+ memcpy (elts, buf, bufLen * sizeof (jbyte));
+
+ java::lang::ClassLoader *l
+ = reinterpret_cast<java::lang::ClassLoader *> (loader);
+
+ jclass result = l->defineClass (sname, bytes, 0, bufLen);
+ return (jclass) wrap_value (env, result);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ return NULL;
+ }
+}
+
+static jclass
+(JNICALL _Jv_JNI_FindClass) (JNIEnv *env, const char *name)
+{
+ // FIXME: assume that NAME isn't too long.
+ int len = strlen (name);
+ char s[len + 1];
+ for (int i = 0; i <= len; ++i)
+ s[i] = (name[i] == '/') ? '.' : name[i];
+
+ jclass r = NULL;
+ try
+ {
+ // This might throw an out of memory exception.
+ jstring n = JvNewStringUTF (s);
+
+ java::lang::ClassLoader *loader = NULL;
+ if (env->klass != NULL)
+ loader = env->klass->getClassLoaderInternal ();
+
+ if (loader == NULL)
+ {
+ // FIXME: should use getBaseClassLoader, but we don't have that
+ // yet.
+ loader = java::lang::ClassLoader::getSystemClassLoader ();
+ }
+
+ r = loader->loadClass (n);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+
+ return (jclass) wrap_value (env, r);
+}
+
+static jclass
+(JNICALL _Jv_JNI_GetSuperclass) (JNIEnv *env, jclass clazz)
+{
+ return (jclass) wrap_value (env, unwrap (clazz)->getSuperclass ());
+}
+
+static jboolean
+(JNICALL _Jv_JNI_IsAssignableFrom) (JNIEnv *, jclass clazz1, jclass clazz2)
+{
+ return unwrap (clazz1)->isAssignableFrom (unwrap (clazz2));
+}
+
+static jint
+(JNICALL _Jv_JNI_Throw) (JNIEnv *env, jthrowable obj)
+{
+ // We check in case the user did some funky cast.
+ obj = unwrap (obj);
+ JvAssert (obj != NULL && java::lang::Throwable::class$.isInstance (obj));
+ env->ex = obj;
+ return 0;
+}
+
+static jint
+(JNICALL _Jv_JNI_ThrowNew) (JNIEnv *env, jclass clazz, const char *message)
+{
+ using namespace java::lang::reflect;
+
+ clazz = unwrap (clazz);
+ JvAssert (java::lang::Throwable::class$.isAssignableFrom (clazz));
+
+ int r = JNI_OK;
+ try
+ {
+ JArray<jclass> *argtypes
+ = (JArray<jclass> *) JvNewObjectArray (1, &java::lang::Class::class$,
+ NULL);
+
+ jclass *elts = elements (argtypes);
+ elts[0] = &StringClass;
+
+ Constructor *cons = clazz->getConstructor (argtypes);
+
+ jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
+ jobject *velts = elements (values);
+ velts[0] = JvNewStringUTF (message);
+
+ jobject obj = cons->newInstance (values);
+
+ env->ex = reinterpret_cast<jthrowable> (obj);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ r = JNI_ERR;
+ }
+
+ return r;
+}
+
+static jthrowable
+(JNICALL _Jv_JNI_ExceptionOccurred) (JNIEnv *env)
+{
+ return (jthrowable) wrap_value (env, env->ex);
+}
+
+static void
+(JNICALL _Jv_JNI_ExceptionDescribe) (JNIEnv *env)
+{
+ if (env->ex != NULL)
+ env->ex->printStackTrace();
+}
+
+static void
+(JNICALL _Jv_JNI_ExceptionClear) (JNIEnv *env)
+{
+ env->ex = NULL;
+}
+
+static jboolean
+(JNICALL _Jv_JNI_ExceptionCheck) (JNIEnv *env)
+{
+ return env->ex != NULL;
+}
+
+static void
+(JNICALL _Jv_JNI_FatalError) (JNIEnv *, const char *message)
+{
+ JvFail (message);
+}
+
+\f
+
+static jboolean
+(JNICALL _Jv_JNI_IsSameObject) (JNIEnv *, jobject obj1, jobject obj2)
+{
+ return unwrap (obj1) == unwrap (obj2);
+}
+
+static jobject
+(JNICALL _Jv_JNI_AllocObject) (JNIEnv *env, jclass clazz)
+{
+ jobject obj = NULL;
+ using namespace java::lang::reflect;
+
+ try
+ {
+ clazz = unwrap (clazz);
+ JvAssert (clazz && ! clazz->isArray ());
+ if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
+ env->ex = new java::lang::InstantiationException ();
+ else
+ obj = JvAllocObject (clazz);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+
+ return wrap_value (env, obj);
+}
+
+static jclass
+(JNICALL _Jv_JNI_GetObjectClass) (JNIEnv *env, jobject obj)
+{
+ obj = unwrap (obj);
+ JvAssert (obj);
+ return (jclass) wrap_value (env, obj->getClass());
+}
+
+static jboolean
+(JNICALL _Jv_JNI_IsInstanceOf) (JNIEnv *, jobject obj, jclass clazz)
+{
+ return unwrap (clazz)->isInstance(unwrap (obj));
+}
+
+\f
+
+//
+// This section concerns method invocation.
+//
+
+template<jboolean is_static>
+static jmethodID
+(JNICALL _Jv_JNI_GetAnyMethodID) (JNIEnv *env, jclass clazz,
+ const char *name, const char *sig)
+{
+ try
+ {
+ clazz = unwrap (clazz);
+ _Jv_InitClass (clazz);
+
+ _Jv_Utf8Const *name_u = _Jv_makeUtf8Const ((char *) name, -1);
+
+ // FIXME: assume that SIG isn't too long.
+ int len = strlen (sig);
+ char s[len + 1];
+ for (int i = 0; i <= len; ++i)
+ s[i] = (sig[i] == '/') ? '.' : sig[i];
+ _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) s, -1);
+
+ JvAssert (! clazz->isPrimitive());
+
+ using namespace java::lang::reflect;
+
+ while (clazz != NULL)
+ {
+ jint count = JvNumMethods (clazz);
+ jmethodID meth = JvGetFirstMethod (clazz);
+
+ for (jint i = 0; i < count; ++i)
+ {
+ if (((is_static && Modifier::isStatic (meth->accflags))
+ || (! is_static && ! Modifier::isStatic (meth->accflags)))
+ && _Jv_equalUtf8Consts (meth->name, name_u)
+ && _Jv_equalUtf8Consts (meth->signature, sig_u))
+ return meth;
+
+ meth = meth->getNextMethod();
+ }
+
+ clazz = clazz->getSuperclass ();
+ }
+
+ env->ex = new java::lang::NoSuchMethodError ();
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+
+ return NULL;
+}
+
+// This is a helper function which turns a va_list into an array of
+// `jvalue's. It needs signature information in order to do its work.
+// The array of values must already be allocated.
+static void
+array_from_valist (jvalue *values, JArray<jclass> *arg_types, va_list vargs)
+{
+ jclass *arg_elts = elements (arg_types);
+ for (int i = 0; i < arg_types->length; ++i)
+ {
+ // Here we assume that sizeof(int) >= sizeof(jint), because we
+ // use `int' when decoding the varargs. Likewise for
+ // float, and double. Also we assume that sizeof(jlong) >=
+ // sizeof(int), i.e. that jlong values are not further
+ // promoted.
+ JvAssert (sizeof (int) >= sizeof (jint));
+ JvAssert (sizeof (jlong) >= sizeof (int));
+ JvAssert (sizeof (double) >= sizeof (jfloat));
+ JvAssert (sizeof (double) >= sizeof (jdouble));
+ if (arg_elts[i] == JvPrimClass (byte))
+ values[i].b = (jbyte) va_arg (vargs, int);
+ else if (arg_elts[i] == JvPrimClass (short))
+ values[i].s = (jshort) va_arg (vargs, int);
+ else if (arg_elts[i] == JvPrimClass (int))
+ values[i].i = (jint) va_arg (vargs, int);
+ else if (arg_elts[i] == JvPrimClass (long))
+ values[i].j = (jlong) va_arg (vargs, jlong);
+ else if (arg_elts[i] == JvPrimClass (float))
+ values[i].f = (jfloat) va_arg (vargs, double);
+ else if (arg_elts[i] == JvPrimClass (double))
+ values[i].d = (jdouble) va_arg (vargs, double);
+ else if (arg_elts[i] == JvPrimClass (boolean))
+ values[i].z = (jboolean) va_arg (vargs, int);
+ else if (arg_elts[i] == JvPrimClass (char))
+ values[i].c = (jchar) va_arg (vargs, int);
+ else
+ {
+ // An object.
+ values[i].l = unwrap (va_arg (vargs, jobject));
+ }
+ }
+}
+
+// This can call any sort of method: virtual, "nonvirtual", static, or
+// constructor.
+template<typename T, invocation_type style>
+static T
+(JNICALL _Jv_JNI_CallAnyMethodV) (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID id, va_list vargs)
+{
+ obj = unwrap (obj);
+ klass = unwrap (klass);
+
+ jclass decl_class = klass ? klass : obj->getClass ();
+ JvAssert (decl_class != NULL);
+
+ jclass return_type;
+ JArray<jclass> *arg_types;
+
+ try
+ {
+ _Jv_GetTypesFromSignature (id, decl_class,
+ &arg_types, &return_type);
+
+ jvalue args[arg_types->length];
+ array_from_valist (args, arg_types, vargs);
+
+ // For constructors we need to pass the Class we are instantiating.
+ if (style == constructor)
+ return_type = klass;
+
+ jvalue result;
+ _Jv_CallAnyMethodA (obj, return_type, id,
+ style == constructor,
+ style == normal,
+ arg_types, args, &result);
+
+ return wrap_value (env, extract_from_jvalue<T>(result));
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+
+ return wrap_value (env, (T) 0);
+}
+
+template<typename T, invocation_type style>
+static T
+(JNICALL _Jv_JNI_CallAnyMethod) (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID method, ...)
+{
+ va_list args;
+ T result;
+
+ va_start (args, method);
+ result = _Jv_JNI_CallAnyMethodV<T, style> (env, obj, klass, method, args);
+ va_end (args);
+
+ return result;
+}
+
+template<typename T, invocation_type style>
+static T
+(JNICALL _Jv_JNI_CallAnyMethodA) (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID id, jvalue *args)
+{
+ obj = unwrap (obj);
+ klass = unwrap (klass);
+
+ jclass decl_class = klass ? klass : obj->getClass ();
+ JvAssert (decl_class != NULL);
+
+ jclass return_type;
+ JArray<jclass> *arg_types;
+ try
+ {
+ _Jv_GetTypesFromSignature (id, decl_class,
+ &arg_types, &return_type);
+
+ // For constructors we need to pass the Class we are instantiating.
+ if (style == constructor)
+ return_type = klass;
+
+ // Unwrap arguments as required. Eww.
+ jclass *type_elts = elements (arg_types);
+ jvalue arg_copy[arg_types->length];
+ for (int i = 0; i < arg_types->length; ++i)
+ {
+ if (type_elts[i]->isPrimitive ())
+ arg_copy[i] = args[i];
+ else
+ arg_copy[i].l = unwrap (args[i].l);
+ }
+
+ jvalue result;
+ _Jv_CallAnyMethodA (obj, return_type, id,
+ style == constructor,
+ style == normal,
+ arg_types, arg_copy, &result);
+
+ return wrap_value (env, extract_from_jvalue<T>(result));
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+
+ return wrap_value (env, (T) 0);
+}
+
+template<invocation_type style>
+static void
+(JNICALL _Jv_JNI_CallAnyVoidMethodV) (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID id, va_list vargs)
+{
+ obj = unwrap (obj);
+ klass = unwrap (klass);
+
+ jclass decl_class = klass ? klass : obj->getClass ();
+ JvAssert (decl_class != NULL);
+
+ jclass return_type;
+ JArray<jclass> *arg_types;
+ try
+ {
+ _Jv_GetTypesFromSignature (id, decl_class,
+ &arg_types, &return_type);
+
+ jvalue args[arg_types->length];
+ array_from_valist (args, arg_types, vargs);
+
+ // For constructors we need to pass the Class we are instantiating.
+ if (style == constructor)
+ return_type = klass;
+
+ _Jv_CallAnyMethodA (obj, return_type, id,
+ style == constructor,
+ style == normal,
+ arg_types, args, NULL);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+}
+
+template<invocation_type style>
+static void
+(JNICALL _Jv_JNI_CallAnyVoidMethod) (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID method, ...)
+{
+ va_list args;
+
+ va_start (args, method);
+ _Jv_JNI_CallAnyVoidMethodV<style> (env, obj, klass, method, args);
+ va_end (args);
+}
+
+template<invocation_type style>
+static void
+(JNICALL _Jv_JNI_CallAnyVoidMethodA) (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID id, jvalue *args)
+{
+ jclass decl_class = klass ? klass : obj->getClass ();
+ JvAssert (decl_class != NULL);
+
+ jclass return_type;
+ JArray<jclass> *arg_types;
+ try
+ {
+ _Jv_GetTypesFromSignature (id, decl_class,
+ &arg_types, &return_type);
+
+ // Unwrap arguments as required. Eww.
+ jclass *type_elts = elements (arg_types);
+ jvalue arg_copy[arg_types->length];
+ for (int i = 0; i < arg_types->length; ++i)
+ {
+ if (type_elts[i]->isPrimitive ())
+ arg_copy[i] = args[i];
+ else
+ arg_copy[i].l = unwrap (args[i].l);
+ }
+
+ _Jv_CallAnyMethodA (obj, return_type, id,
+ style == constructor,
+ style == normal,
+ arg_types, args, NULL);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+}
+
+// Functions with this signature are used to implement functions in
+// the CallMethod family.
+template<typename T>
+static T
+(JNICALL _Jv_JNI_CallMethodV) (JNIEnv *env, jobject obj,
+ jmethodID id, va_list args)
+{
+ return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
+}
+
+// Functions with this signature are used to implement functions in
+// the CallMethod family.
+template<typename T>
+static T
+(JNICALL _Jv_JNI_CallMethod) (JNIEnv *env, jobject obj, jmethodID id, ...)
+{
+ va_list args;
+ T result;
+
+ va_start (args, id);
+ result = _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
+ va_end (args);
+
+ return result;
+}
+
+// Functions with this signature are used to implement functions in
+// the CallMethod family.
+template<typename T>
+static T
+(JNICALL _Jv_JNI_CallMethodA) (JNIEnv *env, jobject obj,
+ jmethodID id, jvalue *args)
+{
+ return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
+}
+
+static void
+(JNICALL _Jv_JNI_CallVoidMethodV) (JNIEnv *env, jobject obj,
+ jmethodID id, va_list args)
+{
+ _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
+}
+
+static void
+(JNICALL _Jv_JNI_CallVoidMethod) (JNIEnv *env, jobject obj, jmethodID id, ...)
+{
+ va_list args;
+
+ va_start (args, id);
+ _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
+ va_end (args);
+}
+
+static void
+(JNICALL _Jv_JNI_CallVoidMethodA) (JNIEnv *env, jobject obj,
+ jmethodID id, jvalue *args)
+{
+ _Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
+}
+
+// Functions with this signature are used to implement functions in
+// the CallStaticMethod family.
+template<typename T>
+static T
+(JNICALL _Jv_JNI_CallStaticMethodV) (JNIEnv *env, jclass klass,
+ jmethodID id, va_list args)
+{
+ JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
+ JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
+
+ return _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass, id, args);
+}
+
+// Functions with this signature are used to implement functions in
+// the CallStaticMethod family.
+template<typename T>
+static T
+(JNICALL _Jv_JNI_CallStaticMethod) (JNIEnv *env, jclass klass,
+ jmethodID id, ...)
+{
+ va_list args;
+ T result;
+
+ JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
+ JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
+
+ va_start (args, id);
+ result = _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass,
+ id, args);
+ va_end (args);
+
+ return result;
+}
+
+// Functions with this signature are used to implement functions in
+// the CallStaticMethod family.
+template<typename T>
+static T
+(JNICALL _Jv_JNI_CallStaticMethodA) (JNIEnv *env, jclass klass, jmethodID id,
+ jvalue *args)
+{
+ JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
+ JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
+
+ return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
+}
+
+static void
+(JNICALL _Jv_JNI_CallStaticVoidMethodV) (JNIEnv *env, jclass klass,
+ jmethodID id, va_list args)
+{
+ _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
+}
+
+static void
+(JNICALL _Jv_JNI_CallStaticVoidMethod) (JNIEnv *env, jclass klass,
+ jmethodID id, ...)
+{
+ va_list args;
+
+ va_start (args, id);
+ _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
+ va_end (args);
+}
+
+static void
+(JNICALL _Jv_JNI_CallStaticVoidMethodA) (JNIEnv *env, jclass klass,
+ jmethodID id, jvalue *args)
+{
+ _Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
+}
+
+static jobject
+(JNICALL _Jv_JNI_NewObjectV) (JNIEnv *env, jclass klass,
+ jmethodID id, va_list args)
+{
+ JvAssert (klass && ! klass->isArray ());
+ JvAssert (! strcmp (id->name->data, "<init>")
+ && id->signature->length > 2
+ && id->signature->data[0] == '('
+ && ! strcmp (&id->signature->data[id->signature->length - 2],
+ ")V"));
+
+ return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
+ id, args);
+}
+
+static jobject
+(JNICALL _Jv_JNI_NewObject) (JNIEnv *env, jclass klass, jmethodID id, ...)
+{
+ JvAssert (klass && ! klass->isArray ());
+ JvAssert (! strcmp (id->name->data, "<init>")
+ && id->signature->length > 2
+ && id->signature->data[0] == '('
+ && ! strcmp (&id->signature->data[id->signature->length - 2],
+ ")V"));
+
+ va_list args;
+ jobject result;
+
+ va_start (args, id);
+ result = _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
+ id, args);
+ va_end (args);
+
+ return result;
+}
+
+static jobject
+(JNICALL _Jv_JNI_NewObjectA) (JNIEnv *env, jclass klass, jmethodID id,
+ jvalue *args)
+{
+ JvAssert (klass && ! klass->isArray ());
+ JvAssert (! strcmp (id->name->data, "<init>")
+ && id->signature->length > 2
+ && id->signature->data[0] == '('
+ && ! strcmp (&id->signature->data[id->signature->length - 2],
+ ")V"));
+
+ return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
+ id, args);
+}
+
+\f
+
+template<typename T>
+static T
+(JNICALL _Jv_JNI_GetField) (JNIEnv *env, jobject obj, jfieldID field)
+{
+ obj = unwrap (obj);
+ JvAssert (obj);
+ T *ptr = (T *) ((char *) obj + field->getOffset ());
+ return wrap_value (env, *ptr);
+}
+
+template<typename T>
+static void
+(JNICALL _Jv_JNI_SetField) (JNIEnv *, jobject obj, jfieldID field, T value)
+{
+ obj = unwrap (obj);
+ value = unwrap (value);
+
+ JvAssert (obj);
+ T *ptr = (T *) ((char *) obj + field->getOffset ());
+ *ptr = value;
+}
+
+template<jboolean is_static>
+static jfieldID
+(JNICALL _Jv_JNI_GetAnyFieldID) (JNIEnv *env, jclass clazz,
+ const char *name, const char *sig)
+{
+ try
+ {
+ clazz = unwrap (clazz);
+
+ _Jv_InitClass (clazz);
+
+ _Jv_Utf8Const *a_name = _Jv_makeUtf8Const ((char *) name, -1);
+
+ // FIXME: assume that SIG isn't too long.
+ int len = strlen (sig);
+ char s[len + 1];
+ for (int i = 0; i <= len; ++i)
+ s[i] = (sig[i] == '/') ? '.' : sig[i];
+ jclass field_class = _Jv_FindClassFromSignature ((char *) s, NULL);
+
+ // FIXME: what if field_class == NULL?
+
+ java::lang::ClassLoader *loader = clazz->getClassLoaderInternal ();
+ while (clazz != NULL)
+ {
+ // We acquire the class lock so that fields aren't resolved
+ // while we are running.
+ JvSynchronize sync (clazz);
+
+ jint count = (is_static
+ ? JvNumStaticFields (clazz)
+ : JvNumInstanceFields (clazz));
+ jfieldID field = (is_static
+ ? JvGetFirstStaticField (clazz)
+ : JvGetFirstInstanceField (clazz));
+ for (jint i = 0; i < count; ++i)
+ {
+ _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
+
+ // The field might be resolved or it might not be. It
+ // is much simpler to always resolve it.
+ _Jv_ResolveField (field, loader);
+ if (_Jv_equalUtf8Consts (f_name, a_name)
+ && field->getClass() == field_class)
+ return field;
+
+ field = field->getNextField ();
+ }
+
+ clazz = clazz->getSuperclass ();
+ }
+
+ env->ex = new java::lang::NoSuchFieldError ();
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+ return NULL;
+}
+
+template<typename T>
+static T
+(JNICALL _Jv_JNI_GetStaticField) (JNIEnv *env, jclass, jfieldID field)
+{
+ T *ptr = (T *) field->u.addr;
+ return wrap_value (env, *ptr);
+}
+
+template<typename T>
+static void
+(JNICALL _Jv_JNI_SetStaticField) (JNIEnv *, jclass, jfieldID field, T value)
+{
+ value = unwrap (value);
+ T *ptr = (T *) field->u.addr;
+ *ptr = value;
+}
+
+static jstring
+(JNICALL _Jv_JNI_NewString) (JNIEnv *env, const jchar *unichars, jsize len)
+{
+ try
+ {
+ jstring r = _Jv_NewString (unichars, len);
+ return (jstring) wrap_value (env, r);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ return NULL;
+ }
+}
+
+static jsize
+(JNICALL _Jv_JNI_GetStringLength) (JNIEnv *, jstring string)
+{
+ return unwrap (string)->length();
+}
+
+static const jchar *
+(JNICALL _Jv_JNI_GetStringChars) (JNIEnv *, jstring string, jboolean *isCopy)
+{
+ string = unwrap (string);
+ jchar *result = _Jv_GetStringChars (string);
+ mark_for_gc (string, global_ref_table);
+ if (isCopy)
+ *isCopy = false;
+ return (const jchar *) result;
+}
+
+static void
+(JNICALL _Jv_JNI_ReleaseStringChars) (JNIEnv *, jstring string, const jchar *)
+{
+ unmark_for_gc (unwrap (string), global_ref_table);
+}
+
+static jstring
+(JNICALL _Jv_JNI_NewStringUTF) (JNIEnv *env, const char *bytes)
+{
+ try
+ {
+ jstring result = JvNewStringUTF (bytes);
+ return (jstring) wrap_value (env, result);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ return NULL;
+ }
+}
+
+static jsize
+(JNICALL _Jv_JNI_GetStringUTFLength) (JNIEnv *, jstring string)
+{
+ return JvGetStringUTFLength (unwrap (string));
+}
+
+static const char *
+(JNICALL _Jv_JNI_GetStringUTFChars) (JNIEnv *env, jstring string,
+ jboolean *isCopy)
+{
+ try
+ {
+ string = unwrap (string);
+ if (string == NULL)
+ return NULL;
+ jsize len = JvGetStringUTFLength (string);
+ char *r = (char *) _Jv_Malloc (len + 1);
+ JvGetStringUTFRegion (string, 0, string->length(), r);
+ r[len] = '\0';
+
+ if (isCopy)
+ *isCopy = true;
+
+ return (const char *) r;
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ return NULL;
+ }
+}
+
+static void
+(JNICALL _Jv_JNI_ReleaseStringUTFChars) (JNIEnv *, jstring, const char *utf)
{
- return clazz->getSuperclass ();
+ _Jv_Free ((void *) utf);
}
-static jboolean
-IsAssignableFrom(JNIEnv *, jclass clazz1, jclass clazz2)
+static void
+(JNICALL _Jv_JNI_GetStringRegion) (JNIEnv *env, jstring string, jsize start,
+ jsize len, jchar *buf)
+{
+ string = unwrap (string);
+ jchar *result = _Jv_GetStringChars (string);
+ if (start < 0 || start > string->length ()
+ || len < 0 || start + len > string->length ())
+ {
+ try
+ {
+ env->ex = new java::lang::StringIndexOutOfBoundsException ();
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+ }
+ else
+ memcpy (buf, &result[start], len * sizeof (jchar));
+}
+
+static void
+(JNICALL _Jv_JNI_GetStringUTFRegion) (JNIEnv *env, jstring str, jsize start,
+ jsize len, char *buf)
+{
+ str = unwrap (str);
+
+ if (start < 0 || start > str->length ()
+ || len < 0 || start + len > str->length ())
+ {
+ try
+ {
+ env->ex = new java::lang::StringIndexOutOfBoundsException ();
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+ }
+ else
+ _Jv_GetStringUTFRegion (str, start, len, buf);
+}
+
+static const jchar *
+(JNICALL _Jv_JNI_GetStringCritical) (JNIEnv *, jstring str, jboolean *isCopy)
+{
+ jchar *result = _Jv_GetStringChars (unwrap (str));
+ if (isCopy)
+ *isCopy = false;
+ return result;
+}
+
+static void
+(JNICALL _Jv_JNI_ReleaseStringCritical) (JNIEnv *, jstring, const jchar *)
+{
+ // Nothing.
+}
+
+static jsize
+(JNICALL _Jv_JNI_GetArrayLength) (JNIEnv *, jarray array)
+{
+ return unwrap (array)->length;
+}
+
+static jarray
+(JNICALL _Jv_JNI_NewObjectArray) (JNIEnv *env, jsize length,
+ jclass elementClass, jobject init)
{
- return clazz1->isAssignableFrom (clazz2);
+ try
+ {
+ elementClass = unwrap (elementClass);
+ init = unwrap (init);
+
+ _Jv_CheckCast (elementClass, init);
+ jarray result = JvNewObjectArray (length, elementClass, init);
+ return (jarray) wrap_value (env, result);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ return NULL;
+ }
}
static jobject
-_Jv_JNI_GetObjectField (JNIEnv *, jobject obj, jfieldID field)
+(JNICALL _Jv_JNI_GetObjectArrayElement) (JNIEnv *env, jobjectArray array,
+ jsize index)
{
- return _Jv_GetObjectField (obj, field);
+ if ((unsigned) index >= (unsigned) array->length)
+ _Jv_ThrowBadArrayIndex (index);
+ jobject *elts = elements (unwrap (array));
+ return wrap_value (env, elts[index]);
}
-static jbyte
-_Jv_JNI_GetByteField (JNIEnv *, jobject obj, jfieldID field)
+static void
+(JNICALL _Jv_JNI_SetObjectArrayElement) (JNIEnv *env, jobjectArray array,
+ jsize index, jobject value)
{
- return _Jv_GetByteField (obj, field);
+ try
+ {
+ array = unwrap (array);
+ value = unwrap (value);
+
+ _Jv_CheckArrayStore (array, value);
+ if ((unsigned) index >= (unsigned) array->length)
+ _Jv_ThrowBadArrayIndex (index);
+ jobject *elts = elements (array);
+ elts[index] = value;
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
}
-static jshort
-_Jv_JNI_GetShortField (JNIEnv *, jobject obj, jfieldID field)
+template<typename T, jclass K>
+static JArray<T> *
+(JNICALL _Jv_JNI_NewPrimitiveArray) (JNIEnv *env, jsize length)
{
- return _Jv_GetShortField (obj, field);
+ try
+ {
+ return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ return NULL;
+ }
}
-static jint
-_Jv_JNI_GetIntField (JNIEnv *, jobject obj, jfieldID field)
+template<typename T, jclass K>
+static T *
+(JNICALL _Jv_JNI_GetPrimitiveArrayElements) (JNIEnv *env, JArray<T> *array,
+ jboolean *isCopy)
{
- return _Jv_GetIntField (obj, field);
+ array = unwrap (array);
+ if (! _Jv_JNI_check_types (env, array, K))
+ return NULL;
+ T *elts = elements (array);
+ if (isCopy)
+ {
+ // We elect never to copy.
+ *isCopy = false;
+ }
+ mark_for_gc (array, global_ref_table);
+ return elts;
}
-static jlong
-_Jv_JNI_GetLongField (JNIEnv *, jobject obj, jfieldID field)
+template<typename T, jclass K>
+static void
+(JNICALL _Jv_JNI_ReleasePrimitiveArrayElements) (JNIEnv *env, JArray<T> *array,
+ T *, jint /* mode */)
{
- return _Jv_GetLongField (obj, field);
+ array = unwrap (array);
+ _Jv_JNI_check_types (env, array, K);
+ // Note that we ignore MODE. We can do this because we never copy
+ // the array elements. My reading of the JNI documentation is that
+ // this is an option for the implementor.
+ unmark_for_gc (array, global_ref_table);
}
-static jsize
-_Jv_JNI_GetStringLength (JNIEnv *, jstring string)
+template<typename T, jclass K>
+static void
+(JNICALL _Jv_JNI_GetPrimitiveArrayRegion) (JNIEnv *env, JArray<T> *array,
+ jsize start, jsize len,
+ T *buf)
+{
+ array = unwrap (array);
+ if (! _Jv_JNI_check_types (env, array, K))
+ return;
+
+ // The cast to unsigned lets us save a comparison.
+ if (start < 0 || len < 0
+ || (unsigned long) (start + len) > (unsigned long) array->length)
+ {
+ try
+ {
+ // FIXME: index.
+ env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
+ }
+ catch (jthrowable t)
+ {
+ // Could have thown out of memory error.
+ env->ex = t;
+ }
+ }
+ else
+ {
+ T *elts = elements (array) + start;
+ memcpy (buf, elts, len * sizeof (T));
+ }
+}
+
+template<typename T, jclass K>
+static void
+(JNICALL _Jv_JNI_SetPrimitiveArrayRegion) (JNIEnv *env, JArray<T> *array,
+ jsize start, jsize len, T *buf)
+{
+ array = unwrap (array);
+ if (! _Jv_JNI_check_types (env, array, K))
+ return;
+
+ // The cast to unsigned lets us save a comparison.
+ if (start < 0 || len < 0
+ || (unsigned long) (start + len) > (unsigned long) array->length)
+ {
+ try
+ {
+ // FIXME: index.
+ env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+ }
+ else
+ {
+ T *elts = elements (array) + start;
+ memcpy (elts, buf, len * sizeof (T));
+ }
+}
+
+static void *
+(JNICALL _Jv_JNI_GetPrimitiveArrayCritical) (JNIEnv *, jarray array,
+ jboolean *isCopy)
+{
+ array = unwrap (array);
+ // FIXME: does this work?
+ jclass klass = array->getClass()->getComponentType();
+ JvAssert (klass->isPrimitive ());
+ char *r = _Jv_GetArrayElementFromElementType (array, klass);
+ if (isCopy)
+ *isCopy = false;
+ return r;
+}
+
+static void
+(JNICALL _Jv_JNI_ReleasePrimitiveArrayCritical) (JNIEnv *, jarray, void *, jint)
+{
+ // Nothing.
+}
+
+static jint
+(JNICALL _Jv_JNI_MonitorEnter) (JNIEnv *env, jobject obj)
+{
+ try
+ {
+ _Jv_MonitorEnter (unwrap (obj));
+ return 0;
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+ return JNI_ERR;
+}
+
+static jint
+(JNICALL _Jv_JNI_MonitorExit) (JNIEnv *env, jobject obj)
{
- return string->length();
+ try
+ {
+ _Jv_MonitorExit (unwrap (obj));
+ return 0;
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+ return JNI_ERR;
}
// JDK 1.2
jobject
-_Jv_JNI_ToReflectedField (JNIEnv *, jclass cls, jfieldID fieldID)
+(JNICALL _Jv_JNI_ToReflectedField) (JNIEnv *env, jclass cls, jfieldID fieldID,
+ jboolean)
{
- java::lang::reflect::Field *field = new java::lang::reflect::Field();
- field->declaringClass = cls;
- field->offset = (char*) fieldID - (char *) cls->fields;
- field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
- return field;
+ try
+ {
+ cls = unwrap (cls);
+ java::lang::reflect::Field *field = new java::lang::reflect::Field();
+ field->declaringClass = cls;
+ field->offset = (char*) fieldID - (char *) cls->fields;
+ field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
+ return wrap_value (env, field);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+ return NULL;
}
// JDK 1.2
-jfieldID
-_Jv_JNI_FromReflectedField (JNIEnv *, java::lang::reflect::Field *field)
+static jfieldID
+(JNICALL _Jv_JNI_FromReflectedField) (JNIEnv *, jobject f)
{
+ using namespace java::lang::reflect;
+
+ f = unwrap (f);
+ Field *field = reinterpret_cast<Field *> (f);
return _Jv_FromReflectedField (field);
}
-#define NOT_IMPL NULL
+jobject
+(JNICALL _Jv_JNI_ToReflectedMethod) (JNIEnv *env, jclass klass, jmethodID id,
+ jboolean)
+{
+ using namespace java::lang::reflect;
+
+ jobject result = NULL;
+ klass = unwrap (klass);
+
+ try
+ {
+ if (_Jv_equalUtf8Consts (id->name, init_name))
+ {
+ // A constructor.
+ Constructor *cons = new Constructor ();
+ cons->offset = (char *) id - (char *) &klass->methods;
+ cons->declaringClass = klass;
+ result = cons;
+ }
+ else
+ {
+ Method *meth = new Method ();
+ meth->offset = (char *) id - (char *) &klass->methods;
+ meth->declaringClass = klass;
+ result = meth;
+ }
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+
+ return wrap_value (env, result);
+}
+
+static jmethodID
+(JNICALL _Jv_JNI_FromReflectedMethod) (JNIEnv *, jobject method)
+{
+ using namespace java::lang::reflect;
+ method = unwrap (method);
+ if (Method::class$.isInstance (method))
+ return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
+ return
+ _Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
+}
+
+// JDK 1.2.
+jweak
+(JNICALL _Jv_JNI_NewWeakGlobalRef) (JNIEnv *env, jobject obj)
+{
+ using namespace gnu::gcj::runtime;
+ JNIWeakRef *ref = NULL;
+
+ try
+ {
+ // This seems weird but I think it is correct.
+ obj = unwrap (obj);
+ ref = new JNIWeakRef (obj);
+ mark_for_gc (ref, global_ref_table);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+
+ return reinterpret_cast<jweak> (ref);
+}
+
+void
+(JNICALL _Jv_JNI_DeleteWeakGlobalRef) (JNIEnv *, jweak obj)
+{
+ using namespace gnu::gcj::runtime;
+ JNIWeakRef *ref = reinterpret_cast<JNIWeakRef *> (obj);
+ unmark_for_gc (ref, global_ref_table);
+ ref->clear ();
+}
+
+\f
+
+// Direct byte buffers.
+
+static jobject
+(JNICALL _Jv_JNI_NewDirectByteBuffer) (JNIEnv *, void *address, jlong length)
+{
+ using namespace gnu::gcj;
+ using namespace java::nio;
+ return new DirectByteBufferImpl (reinterpret_cast<RawData *> (address),
+ length);
+}
+
+static void *
+(JNICALL _Jv_JNI_GetDirectBufferAddress) (JNIEnv *, jobject buffer)
+{
+ using namespace java::nio;
+ DirectByteBufferImpl* bb = static_cast<DirectByteBufferImpl *> (buffer);
+ return reinterpret_cast<void *> (bb->address);
+}
+
+static jlong
+(JNICALL _Jv_JNI_GetDirectBufferCapacity) (JNIEnv *, jobject buffer)
+{
+ using namespace java::nio;
+ DirectByteBufferImpl* bb = static_cast<DirectByteBufferImpl *> (buffer);
+ return bb->capacity();
+}
+
+\f
+
+// Hash table of native methods.
+static JNINativeMethod *nathash;
+// Number of slots used.
+static int nathash_count = 0;
+// Number of slots available. Must be power of 2.
+static int nathash_size = 0;
+
+#define DELETED_ENTRY ((char *) (~0))
+
+// Compute a hash value for a native method descriptor.
+static int
+hash (const JNINativeMethod *method)
+{
+ char *ptr;
+ int hash = 0;
+
+ ptr = method->name;
+ while (*ptr)
+ hash = (31 * hash) + *ptr++;
+
+ ptr = method->signature;
+ while (*ptr)
+ hash = (31 * hash) + *ptr++;
+
+ return hash;
+}
+
+// Find the slot where a native method goes.
+static JNINativeMethod *
+nathash_find_slot (const JNINativeMethod *method)
+{
+ jint h = hash (method);
+ int step = (h ^ (h >> 16)) | 1;
+ int w = h & (nathash_size - 1);
+ int del = -1;
+
+ for (;;)
+ {
+ JNINativeMethod *slotp = &nathash[w];
+ if (slotp->name == NULL)
+ {
+ if (del >= 0)
+ return &nathash[del];
+ else
+ return slotp;
+ }
+ else if (slotp->name == DELETED_ENTRY)
+ del = w;
+ else if (! strcmp (slotp->name, method->name)
+ && ! strcmp (slotp->signature, method->signature))
+ return slotp;
+ w = (w + step) & (nathash_size - 1);
+ }
+}
+
+// Find a method. Return NULL if it isn't in the hash table.
+static void *
+nathash_find (JNINativeMethod *method)
+{
+ if (nathash == NULL)
+ return NULL;
+ JNINativeMethod *slot = nathash_find_slot (method);
+ if (slot->name == NULL || slot->name == DELETED_ENTRY)
+ return NULL;
+ return slot->fnPtr;
+}
+
+static void
+natrehash ()
+{
+ if (nathash == NULL)
+ {
+ nathash_size = 1024;
+ nathash =
+ (JNINativeMethod *) _Jv_AllocBytes (nathash_size
+ * sizeof (JNINativeMethod));
+ memset (nathash, 0, nathash_size * sizeof (JNINativeMethod));
+ }
+ else
+ {
+ int savesize = nathash_size;
+ JNINativeMethod *savehash = nathash;
+ nathash_size *= 2;
+ nathash =
+ (JNINativeMethod *) _Jv_AllocBytes (nathash_size
+ * sizeof (JNINativeMethod));
+ memset (nathash, 0, nathash_size * sizeof (JNINativeMethod));
+
+ for (int i = 0; i < savesize; ++i)
+ {
+ if (savehash[i].name != NULL && savehash[i].name != DELETED_ENTRY)
+ {
+ JNINativeMethod *slot = nathash_find_slot (&savehash[i]);
+ *slot = savehash[i];
+ }
+ }
+ }
+}
+
+static void
+nathash_add (const JNINativeMethod *method)
+{
+ if (3 * nathash_count >= 2 * nathash_size)
+ natrehash ();
+ JNINativeMethod *slot = nathash_find_slot (method);
+ // If the slot has a real entry in it, then there is no work to do.
+ if (slot->name != NULL && slot->name != DELETED_ENTRY)
+ return;
+ // FIXME
+ slot->name = strdup (method->name);
+ slot->signature = strdup (method->signature);
+ slot->fnPtr = method->fnPtr;
+}
+
+static jint
+(JNICALL _Jv_JNI_RegisterNatives) (JNIEnv *env, jclass klass,
+ const JNINativeMethod *methods,
+ jint nMethods)
+{
+ // Synchronize while we do the work. This must match
+ // synchronization in some other functions that manipulate or use
+ // the nathash table.
+ JvSynchronize sync (global_ref_table);
+
+ // Look at each descriptor given us, and find the corresponding
+ // method in the class.
+ for (int j = 0; j < nMethods; ++j)
+ {
+ bool found = false;
+
+ _Jv_Method *imeths = JvGetFirstMethod (klass);
+ for (int i = 0; i < JvNumMethods (klass); ++i)
+ {
+ _Jv_Method *self = &imeths[i];
+
+ if (! strcmp (self->name->data, methods[j].name)
+ && ! strcmp (self->signature->data, methods[j].signature))
+ {
+ if (! (self->accflags
+ & java::lang::reflect::Modifier::NATIVE))
+ break;
+
+ // Found a match that is native.
+ found = true;
+ nathash_add (&methods[j]);
+
+ break;
+ }
+ }
+
+ if (! found)
+ {
+ jstring m = JvNewStringUTF (methods[j].name);
+ try
+ {
+ env->ex =new java::lang::NoSuchMethodError (m);
+ }
+ catch (jthrowable t)
+ {
+ env->ex = t;
+ }
+ return JNI_ERR;
+ }
+ }
+
+ return JNI_OK;
+}
+
+static jint
+(JNICALL _Jv_JNI_UnregisterNatives) (JNIEnv *, jclass)
+{
+ // FIXME -- we could implement this.
+ return JNI_ERR;
+}
+
+\f
+
+// Add a character to the buffer, encoding properly.
+static void
+add_char (char *buf, jchar c, int *here)
+{
+ if (c == '_')
+ {
+ buf[(*here)++] = '_';
+ buf[(*here)++] = '1';
+ }
+ else if (c == ';')
+ {
+ buf[(*here)++] = '_';
+ buf[(*here)++] = '2';
+ }
+ else if (c == '[')
+ {
+ buf[(*here)++] = '_';
+ buf[(*here)++] = '3';
+ }
+
+ // Also check for `.' here because we might be passed an internal
+ // qualified class name like `foo.bar'.
+ else if (c == '/' || c == '.')
+ buf[(*here)++] = '_';
+ else if ((c >= '0' && c <= '9')
+ || (c >= 'a' && c <= 'z')
+ || (c >= 'A' && c <= 'Z'))
+ buf[(*here)++] = (char) c;
+ else
+ {
+ // "Unicode" character.
+ buf[(*here)++] = '_';
+ buf[(*here)++] = '0';
+ for (int i = 0; i < 4; ++i)
+ {
+ int val = c & 0x0f;
+ buf[(*here) + 3 - i] = (val > 10) ? ('a' + val - 10) : ('0' + val);
+ c >>= 4;
+ }
+ *here += 4;
+ }
+}
+
+// Compute a mangled name for a native function. This computes the
+// long name, and also returns an index which indicates where a NUL
+// can be placed to create the short name. This function assumes that
+// the buffer is large enough for its results.
+static void
+mangled_name (jclass klass, _Jv_Utf8Const *func_name,
+ _Jv_Utf8Const *signature, char *buf, int *long_start)
+{
+ strcpy (buf, "Java_");
+ int here = 5;
+
+ // Add fully qualified class name.
+ jchar *chars = _Jv_GetStringChars (klass->getName ());
+ jint len = klass->getName ()->length ();
+ for (int i = 0; i < len; ++i)
+ add_char (buf, chars[i], &here);
+
+ // Don't use add_char because we need a literal `_'.
+ buf[here++] = '_';
+
+ const unsigned char *fn = (const unsigned char *) func_name->data;
+ const unsigned char *limit = fn + func_name->length;
+ for (int i = 0; ; ++i)
+ {
+ int ch = UTF8_GET (fn, limit);
+ if (ch < 0)
+ break;
+ add_char (buf, ch, &here);
+ }
+
+ // This is where the long signature begins.
+ *long_start = here;
+ buf[here++] = '_';
+ buf[here++] = '_';
+
+ const unsigned char *sig = (const unsigned char *) signature->data;
+ limit = sig + signature->length;
+ JvAssert (sig[0] == '(');
+ ++sig;
+ while (1)
+ {
+ int ch = UTF8_GET (sig, limit);
+ if (ch == ')' || ch < 0)
+ break;
+ add_char (buf, ch, &here);
+ }
+
+ buf[here] = '\0';
+}
+
+// Return the current thread's JNIEnv; if one does not exist, create
+// it. Also create a new system frame for use. This is `extern "C"'
+// because the compiler calls it.
+extern "C" JNIEnv *
+_Jv_GetJNIEnvNewFrame (jclass klass)
+{
+ JNIEnv *env = _Jv_GetCurrentJNIEnv ();
+ if (env == NULL)
+ {
+ env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
+ env->p = &_Jv_JNIFunctions;
+ env->klass = klass;
+ env->locals = NULL;
+ // We set env->ex below.
+
+ _Jv_SetCurrentJNIEnv (env);
+ }
+
+ _Jv_JNI_LocalFrame *frame
+ = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
+ + (FRAME_SIZE
+ * sizeof (jobject)));
+
+ frame->marker = MARK_SYSTEM;
+ frame->size = FRAME_SIZE;
+ frame->next = env->locals;
+
+ for (int i = 0; i < frame->size; ++i)
+ frame->vec[i] = NULL;
+
+ env->locals = frame;
+ env->ex = NULL;
+
+ return env;
+}
+
+// Return the function which implements a particular JNI method. If
+// we can't find the function, we throw the appropriate exception.
+// This is `extern "C"' because the compiler uses it.
+extern "C" void *
+_Jv_LookupJNIMethod (jclass klass, _Jv_Utf8Const *name,
+ _Jv_Utf8Const *signature, MAYBE_UNUSED int args_size)
+{
+ char buf[10 + 6 * (name->length + signature->length) + 12];
+ int long_start;
+ void *function;
+
+ // Synchronize on something convenient. Right now we use the hash.
+ JvSynchronize sync (global_ref_table);
+
+ // First see if we have an override in the hash table.
+ strncpy (buf, name->data, name->length);
+ buf[name->length] = '\0';
+ strncpy (buf + name->length + 1, signature->data, signature->length);
+ buf[name->length + signature->length + 1] = '\0';
+ JNINativeMethod meth;
+ meth.name = buf;
+ meth.signature = buf + name->length + 1;
+ function = nathash_find (&meth);
+ if (function != NULL)
+ return function;
+
+ // If there was no override, then look in the symbol table.
+ buf[0] = '_';
+ mangled_name (klass, name, signature, buf + 1, &long_start);
+ char c = buf[long_start + 1];
+ buf[long_start + 1] = '\0';
+
+ function = _Jv_FindSymbolInExecutable (buf + 1);
+#ifdef WIN32
+ // On Win32, we use the "stdcall" calling convention (see JNICALL
+ // in jni.h).
+ //
+ // For a function named 'fooBar' that takes 'nn' bytes as arguments,
+ // by default, MinGW GCC exports it as 'fooBar@nn', MSVC exports it
+ // as '_fooBar@nn' and Borland C exports it as 'fooBar'. We try to
+ // take care of all these variations here.
+
+ char asz_buf[12]; /* '@' + '2147483647' (32-bit INT_MAX) + '\0' */
+ char long_nm_sv[11]; /* Ditto, except for the '\0'. */
+
+ if (function == NULL)
+ {
+ // We have tried searching for the 'fooBar' form (BCC) - now
+ // try the others.
+
+ // First, save the part of the long name that will be damaged
+ // by appending '@nn'.
+ memcpy (long_nm_sv, (buf + long_start + 1 + 1), sizeof (long_nm_sv));
+
+ sprintf (asz_buf, "@%d", args_size);
+ strcat (buf, asz_buf);
+
+ // Search for the '_fooBar@nn' form (MSVC).
+ function = _Jv_FindSymbolInExecutable (buf);
+
+ if (function == NULL)
+ {
+ // Search for the 'fooBar@nn' form (MinGW GCC).
+ function = _Jv_FindSymbolInExecutable (buf + 1);
+ }
+ }
+#endif /* WIN32 */
+
+ if (function == NULL)
+ {
+ buf[long_start + 1] = c;
+#ifdef WIN32
+ // Restore the part of the long name that was damaged by
+ // appending the '@nn'.
+ memcpy ((buf + long_start + 1 + 1), long_nm_sv, sizeof (long_nm_sv));
+#endif /* WIN32 */
+ function = _Jv_FindSymbolInExecutable (buf + 1);
+ if (function == NULL)
+ {
+#ifdef WIN32
+ strcat (buf, asz_buf);
+ function = _Jv_FindSymbolInExecutable (buf);
+ if (function == NULL)
+ function = _Jv_FindSymbolInExecutable (buf + 1);
+
+ if (function == NULL)
+#endif /* WIN32 */
+ {
+ jstring str = JvNewStringUTF (name->data);
+ throw new java::lang::UnsatisfiedLinkError (str);
+ }
+ }
+ }
+
+ return function;
+}
+
+#ifdef INTERPRETER
+
+// This function is the stub which is used to turn an ordinary (CNI)
+// method call into a JNI call.
+void
+_Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
+{
+ _Jv_JNIMethod* _this = (_Jv_JNIMethod *) __this;
+
+ JNIEnv *env = _Jv_GetJNIEnvNewFrame (_this->defining_class);
+
+ // FIXME: we should mark every reference parameter as a local. For
+ // now we assume a conservative GC, and we assume that the
+ // references are on the stack somewhere.
+
+ // We cache the value that we find, of course, but if we don't find
+ // a value we don't cache that fact -- we might subsequently load a
+ // library which finds the function in question.
+ {
+ // Synchronize on a convenient object to ensure sanity in case two
+ // threads reach this point for the same function at the same
+ // time.
+ JvSynchronize sync (global_ref_table);
+ if (_this->function == NULL)
+ {
+ int args_size = sizeof (JNIEnv *) + _this->args_raw_size;
+
+ if (_this->self->accflags & java::lang::reflect::Modifier::STATIC)
+ args_size += sizeof (_this->defining_class);
+
+ _this->function = _Jv_LookupJNIMethod (_this->defining_class,
+ _this->self->name,
+ _this->self->signature,
+ args_size);
+ }
+ }
+
+ JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
+ ffi_raw real_args[2 + _this->args_raw_size / sizeof (ffi_raw)];
+ int offset = 0;
+
+ // First argument is always the environment pointer.
+ real_args[offset++].ptr = env;
+
+ // For a static method, we pass in the Class. For non-static
+ // methods, the `this' argument is already handled.
+ if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
+ real_args[offset++].ptr = _this->defining_class;
+
+ // In libgcj, the callee synchronizes.
+ jobject sync = NULL;
+ if ((_this->self->accflags & java::lang::reflect::Modifier::SYNCHRONIZED))
+ {
+ if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
+ sync = _this->defining_class;
+ else
+ sync = (jobject) args[0].ptr;
+ _Jv_MonitorEnter (sync);
+ }
+
+ // Copy over passed-in arguments.
+ memcpy (&real_args[offset], args, _this->args_raw_size);
+
+ // The actual call to the JNI function.
+ ffi_raw_call (&_this->jni_cif, (void (*)()) _this->function,
+ ret, real_args);
+
+ if (sync != NULL)
+ _Jv_MonitorExit (sync);
+
+ _Jv_JNI_PopSystemFrame (env);
+}
+
+#endif /* INTERPRETER */
+
+\f
+
+//
+// Invocation API.
+//
+
+// An internal helper function.
+static jint
+_Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv,
+ void *args, jboolean is_daemon)
+{
+ JavaVMAttachArgs *attach = reinterpret_cast<JavaVMAttachArgs *> (args);
+ java::lang::ThreadGroup *group = NULL;
+
+ if (attach)
+ {
+ // FIXME: do we really want to support 1.1?
+ if (attach->version != JNI_VERSION_1_4
+ && attach->version != JNI_VERSION_1_2
+ && attach->version != JNI_VERSION_1_1)
+ return JNI_EVERSION;
+
+ JvAssert (java::lang::ThreadGroup::class$.isInstance (attach->group));
+ group = reinterpret_cast<java::lang::ThreadGroup *> (attach->group);
+ }
+
+ // Attaching an already-attached thread is a no-op.
+ if (_Jv_GetCurrentJNIEnv () != NULL)
+ return 0;
+
+ JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
+ if (env == NULL)
+ return JNI_ERR;
+ env->p = &_Jv_JNIFunctions;
+ env->ex = NULL;
+ env->klass = NULL;
+ env->locals
+ = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
+ + (FRAME_SIZE
+ * sizeof (jobject)));
+ if (env->locals == NULL)
+ {
+ _Jv_Free (env);
+ return JNI_ERR;
+ }
+
+ env->locals->marker = MARK_SYSTEM;
+ env->locals->size = FRAME_SIZE;
+ env->locals->next = NULL;
+
+ for (int i = 0; i < env->locals->size; ++i)
+ env->locals->vec[i] = NULL;
+
+ *penv = reinterpret_cast<void *> (env);
+
+ // This thread might already be a Java thread -- this function might
+ // have been called simply to set the new JNIEnv.
+ if (_Jv_ThreadCurrent () == NULL)
+ {
+ try
+ {
+ if (is_daemon)
+ _Jv_AttachCurrentThreadAsDaemon (name, group);
+ else
+ _Jv_AttachCurrentThread (name, group);
+ }
+ catch (jthrowable t)
+ {
+ return JNI_ERR;
+ }
+ }
+ _Jv_SetCurrentJNIEnv (env);
+
+ return 0;
+}
+
+// This is the one actually used by JNI.
+static jint
+(JNICALL _Jv_JNI_AttachCurrentThread) (JavaVM *vm, void **penv, void *args)
+{
+ return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args, false);
+}
+
+static jint
+(JNICALL _Jv_JNI_AttachCurrentThreadAsDaemon) (JavaVM *vm, void **penv,
+ void *args)
+{
+ return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args, true);
+}
+
+static jint
+(JNICALL _Jv_JNI_DestroyJavaVM) (JavaVM *vm)
+{
+ JvAssert (the_vm && vm == the_vm);
+
+ JNIEnv *env;
+ if (_Jv_ThreadCurrent () != NULL)
+ {
+ jstring main_name;
+ // This sucks.
+ try
+ {
+ main_name = JvNewStringLatin1 ("main");
+ }
+ catch (jthrowable t)
+ {
+ return JNI_ERR;
+ }
+
+ jint r = _Jv_JNI_AttachCurrentThread (vm, main_name,
+ reinterpret_cast<void **> (&env),
+ NULL, false);
+ if (r < 0)
+ return r;
+ }
+ else
+ env = _Jv_GetCurrentJNIEnv ();
+
+ _Jv_ThreadWait ();
+
+ // Docs say that this always returns an error code.
+ return JNI_ERR;
+}
+
+jint
+(JNICALL _Jv_JNI_DetachCurrentThread) (JavaVM *)
+{
+ jint code = _Jv_DetachCurrentThread ();
+ return code ? JNI_EDETACHED : 0;
+}
+
+static jint
+(JNICALL _Jv_JNI_GetEnv) (JavaVM *, void **penv, jint version)
+{
+ if (_Jv_ThreadCurrent () == NULL)
+ {
+ *penv = NULL;
+ return JNI_EDETACHED;
+ }
+
+#ifdef ENABLE_JVMPI
+ // Handle JVMPI requests.
+ if (version == JVMPI_VERSION_1)
+ {
+ *penv = (void *) &_Jv_JVMPI_Interface;
+ return 0;
+ }
+#endif
+
+ // FIXME: do we really want to support 1.1?
+ if (version != JNI_VERSION_1_4 && version != JNI_VERSION_1_2
+ && version != JNI_VERSION_1_1)
+ {
+ *penv = NULL;
+ return JNI_EVERSION;
+ }
+
+ *penv = (void *) _Jv_GetCurrentJNIEnv ();
+ return 0;
+}
+
+jint JNICALL
+JNI_GetDefaultJavaVMInitArgs (void *args)
+{
+ jint version = * (jint *) args;
+ // Here we only support 1.2 and 1.4.
+ if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
+ return JNI_EVERSION;
+
+ JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
+ ia->version = JNI_VERSION_1_4;
+ ia->nOptions = 0;
+ ia->options = NULL;
+ ia->ignoreUnrecognized = true;
+
+ return 0;
+}
+
+jint JNICALL
+JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
+{
+ JvAssert (! the_vm);
+
+ _Jv_CreateJavaVM (NULL);
+
+ // FIXME: synchronize
+ JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
+ if (nvm == NULL)
+ return JNI_ERR;
+ nvm->functions = &_Jv_JNI_InvokeFunctions;
+
+ // Parse the arguments.
+ if (args != NULL)
+ {
+ jint version = * (jint *) args;
+ // We only support 1.2 and 1.4.
+ if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
+ return JNI_EVERSION;
+ JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
+ for (int i = 0; i < ia->nOptions; ++i)
+ {
+ if (! strcmp (ia->options[i].optionString, "vfprintf")
+ || ! strcmp (ia->options[i].optionString, "exit")
+ || ! strcmp (ia->options[i].optionString, "abort"))
+ {
+ // We are required to recognize these, but for now we
+ // don't handle them in any way. FIXME.
+ continue;
+ }
+ else if (! strncmp (ia->options[i].optionString,
+ "-verbose", sizeof ("-verbose") - 1))
+ {
+ // We don't do anything with this option either. We
+ // might want to make sure the argument is valid, but we
+ // don't really care all that much for now.
+ continue;
+ }
+ else if (! strncmp (ia->options[i].optionString, "-D", 2))
+ {
+ // FIXME.
+ continue;
+ }
+ else if (ia->ignoreUnrecognized)
+ {
+ if (ia->options[i].optionString[0] == '_'
+ || ! strncmp (ia->options[i].optionString, "-X", 2))
+ continue;
+ }
+
+ return JNI_ERR;
+ }
+ }
+
+ jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
+ if (r < 0)
+ return r;
+
+ the_vm = nvm;
+ *vm = the_vm;
+
+ return 0;
+}
+
+jint JNICALL
+JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
+{
+ if (buf_len <= 0)
+ return JNI_ERR;
+
+ // We only support a single VM.
+ if (the_vm != NULL)
+ {
+ vm_buffer[0] = the_vm;
+ *n_vms = 1;
+ }
+ else
+ *n_vms = 0;
+ return 0;
+}
+
+JavaVM *
+_Jv_GetJavaVM ()
+{
+ // FIXME: synchronize
+ if (! the_vm)
+ {
+ JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
+ if (nvm != NULL)
+ nvm->functions = &_Jv_JNI_InvokeFunctions;
+ the_vm = nvm;
+ }
+
+ // If this is a Java thread, we want to make sure it has an
+ // associated JNIEnv.
+ if (_Jv_ThreadCurrent () != NULL)
+ {
+ void *ignore;
+ _Jv_JNI_AttachCurrentThread (the_vm, &ignore, NULL);
+ }
+
+ return the_vm;
+}
+
+static jint
+(JNICALL _Jv_JNI_GetJavaVM) (JNIEnv *, JavaVM **vm)
+{
+ *vm = _Jv_GetJavaVM ();
+ return *vm == NULL ? JNI_ERR : JNI_OK;
+}
+
+\f
+
+#define RESERVED NULL
struct JNINativeInterface _Jv_JNIFunctions =
{
- NULL,
- NULL,
- NULL,
- NULL,
- NOT_IMPL /* GetVersion */,
- NOT_IMPL /* DefineClass */,
- NOT_IMPL /* FindClass */,
- NULL,
- NULL,
- NULL,
- _Jv_JNI_GetSuperclass,
- IsAssignableFrom,
- NULL,
- NOT_IMPL /* Throw */,
- NOT_IMPL /* ThrowNew */,
- NOT_IMPL /* ExceptionOccurred */,
- NOT_IMPL /* ExceptionDescribe */,
- NOT_IMPL /* ExceptionClear */,
- NOT_IMPL /* FatalError */,
- NOT_IMPL /* NULL */,
- NOT_IMPL /* NULL */,
- NOT_IMPL /* NewGlobalRef */,
- NOT_IMPL /* DeleteGlobalRef */,
- NOT_IMPL /* DeleteLocalRef */,
- NOT_IMPL /* IsSameObject */,
- NOT_IMPL /* NULL */,
- NOT_IMPL /* NULL */,
- NOT_IMPL /* AllocObject */,
- NOT_IMPL /* NewObject */,
- NOT_IMPL /* NewObjectV */,
- NOT_IMPL /* NewObjectA */,
- NOT_IMPL /* GetObjectClass */,
- NOT_IMPL /* IsInstanceOf */,
- NOT_IMPL /* GetMethodID */,
- NOT_IMPL /* CallObjectMethod */,
- NOT_IMPL /* CallObjectMethodV */,
- NOT_IMPL /* CallObjectMethodA */,
- NOT_IMPL /* CallBooleanMethod */,
- NOT_IMPL /* CallBooleanMethodV */,
- NOT_IMPL /* CallBooleanMethodA */,
- NOT_IMPL /* CallByteMethod */,
- NOT_IMPL /* CallByteMethodV */,
- NOT_IMPL /* CallByteMethodA */,
- NOT_IMPL /* CallCharMethod */,
- NOT_IMPL /* CallCharMethodV */,
- NOT_IMPL /* CallCharMethodA */,
- NOT_IMPL /* CallShortMethod */,
- NOT_IMPL /* CallShortMethodV */,
- NOT_IMPL /* CallShortMethodA */,
- NOT_IMPL /* CallIntMethod */,
- NOT_IMPL /* CallIntMethodV */,
- NOT_IMPL /* CallIntMethodA */,
- NOT_IMPL /* CallLongMethod */,
- NOT_IMPL /* CallLongMethodV */,
- NOT_IMPL /* CallLongMethodA */,
- NOT_IMPL /* CallFloatMethod */,
- NOT_IMPL /* CallFloatMethodV */,
- NOT_IMPL /* CallFloatMethodA */,
- NOT_IMPL /* CallDoubleMethod */,
- NOT_IMPL /* CallDoubleMethodV */,
- NOT_IMPL /* CallDoubleMethodA */,
- NOT_IMPL /* CallVoidMethod */,
- NOT_IMPL /* CallVoidMethodV */,
- NOT_IMPL /* CallVoidMethodA */,
- NOT_IMPL /* CallNonvirtualObjectMethod */,
- NOT_IMPL /* CallNonvirtualObjectMethodV */,
- NOT_IMPL /* CallNonvirtualObjectMethodA */,
- NOT_IMPL /* CallNonvirtualBooleanMethod */,
- NOT_IMPL /* CallNonvirtualBooleanMethodV */,
- NOT_IMPL /* CallNonvirtualBooleanMethodA */,
- NOT_IMPL /* CallNonvirtualByteMethod */,
- NOT_IMPL /* CallNonvirtualByteMethodV */,
- NOT_IMPL /* CallNonvirtualByteMethodA */,
- NOT_IMPL /* CallNonvirtualCharMethod */,
- NOT_IMPL /* CallNonvirtualCharMethodV */,
- NOT_IMPL /* CallNonvirtualCharMethodA */,
- NOT_IMPL /* CallNonvirtualShortMethod */,
- NOT_IMPL /* CallNonvirtualShortMethodV */,
- NOT_IMPL /* CallNonvirtualShortMethodA */,
- NOT_IMPL /* CallNonvirtualIntMethod */,
- NOT_IMPL /* CallNonvirtualIntMethodV */,
- NOT_IMPL /* CallNonvirtualIntMethodA */,
- NOT_IMPL /* CallNonvirtualLongMethod */,
- NOT_IMPL /* CallNonvirtualLongMethodV */,
- NOT_IMPL /* CallNonvirtualLongMethodA */,
- NOT_IMPL /* CallNonvirtualFloatMethod */,
- NOT_IMPL /* CallNonvirtualFloatMethodV */,
- NOT_IMPL /* CallNonvirtualFloatMethodA */,
- NOT_IMPL /* CallNonvirtualDoubleMethod */,
- NOT_IMPL /* CallNonvirtualDoubleMethodV */,
- NOT_IMPL /* CallNonvirtualDoubleMethodA */,
- NOT_IMPL /* CallNonvirtualVoidMethod */,
- NOT_IMPL /* CallNonvirtualVoidMethodV */,
- NOT_IMPL /* CallNonvirtualVoidMethodA */,
- NOT_IMPL /* GetFieldID */,
- _Jv_JNI_GetObjectField,
- NOT_IMPL /* GetBooleanField */,
- _Jv_JNI_GetByteField,
- NOT_IMPL /* GetCharField */,
- _Jv_JNI_GetShortField,
- _Jv_JNI_GetIntField,
- _Jv_JNI_GetLongField,
- NOT_IMPL /* GetFloatField */,
- NOT_IMPL /* GetDoubleField */,
- NOT_IMPL /* SetObjectField */,
- NOT_IMPL /* SetBooleanField */,
- NOT_IMPL /* SetByteField */,
- NOT_IMPL /* SetCharField */,
- NOT_IMPL /* SetShortField */,
- NOT_IMPL /* SetIntField */,
- NOT_IMPL /* SetLongField */,
- NOT_IMPL /* SetFloatField */,
- NOT_IMPL /* SetDoubleField */,
- NOT_IMPL /* GetStaticMethodID */,
- NOT_IMPL /* CallStaticObjectMethod */,
- NOT_IMPL /* CallStaticObjectMethodV */,
- NOT_IMPL /* CallStaticObjectMethodA */,
- NOT_IMPL /* CallStaticBooleanMethod */,
- NOT_IMPL /* CallStaticBooleanMethodV */,
- NOT_IMPL /* CallStaticBooleanMethodA */,
- NOT_IMPL /* CallStaticByteMethod */,
- NOT_IMPL /* CallStaticByteMethodV */,
- NOT_IMPL /* CallStaticByteMethodA */,
- NOT_IMPL /* CallStaticCharMethod */,
- NOT_IMPL /* CallStaticCharMethodV */,
- NOT_IMPL /* CallStaticCharMethodA */,
- NOT_IMPL /* CallStaticShortMethod */,
- NOT_IMPL /* CallStaticShortMethodV */,
- NOT_IMPL /* CallStaticShortMethodA */,
- NOT_IMPL /* CallStaticIntMethod */,
- NOT_IMPL /* CallStaticIntMethodV */,
- NOT_IMPL /* CallStaticIntMethodA */,
- NOT_IMPL /* CallStaticLongMethod */,
- NOT_IMPL /* CallStaticLongMethodV */,
- NOT_IMPL /* CallStaticLongMethodA */,
- NOT_IMPL /* CallStaticFloatMethod */,
- NOT_IMPL /* CallStaticFloatMethodV */,
- NOT_IMPL /* CallStaticFloatMethodA */,
- NOT_IMPL /* CallStaticDoubleMethod */,
- NOT_IMPL /* CallStaticDoubleMethodV */,
- NOT_IMPL /* CallStaticDoubleMethodA */,
- NOT_IMPL /* CallStaticVoidMethod */,
- NOT_IMPL /* CallStaticVoidMethodV */,
- NOT_IMPL /* CallStaticVoidMethodA */,
- NOT_IMPL /* GetStaticFieldID */,
- NOT_IMPL /* GetStaticObjectField */,
- NOT_IMPL /* GetStaticBooleanField */,
- NOT_IMPL /* GetStaticByteField */,
- NOT_IMPL /* GetStaticCharField */,
- NOT_IMPL /* GetStaticShortField */,
- NOT_IMPL /* GetStaticIntField */,
- NOT_IMPL /* GetStaticLongField */,
- NOT_IMPL /* GetStaticFloatField */,
- NOT_IMPL /* GetStaticDoubleField */,
- NOT_IMPL /* SetStaticObjectField */,
- NOT_IMPL /* SetStaticBooleanField */,
- NOT_IMPL /* SetStaticByteField */,
- NOT_IMPL /* SetStaticCharField */,
- NOT_IMPL /* SetStaticShortField */,
- NOT_IMPL /* SetStaticIntField */,
- NOT_IMPL /* SetStaticLongField */,
- NOT_IMPL /* SetStaticFloatField */,
- NOT_IMPL /* SetStaticDoubleField */,
- NOT_IMPL /* NewString */,
- _Jv_JNI_GetStringLength,
- NOT_IMPL /* GetStringChars */,
- NOT_IMPL /* ReleaseStringChars */,
- NOT_IMPL /* NewStringUTF */,
- NOT_IMPL /* GetStringUTFLength */,
- NOT_IMPL /* GetStringUTFChars */,
- NOT_IMPL /* ReleaseStringUTFChars */,
- NOT_IMPL /* GetArrayLength */,
- NOT_IMPL /* NewObjectArray */,
- NOT_IMPL /* GetObjectArrayElement */,
- NOT_IMPL /* SetObjectArrayElement */,
- NOT_IMPL /* NewBooleanArray */,
- NOT_IMPL /* NewByteArray */,
- NOT_IMPL /* NewCharArray */,
- NOT_IMPL /* NewShortArray */,
- NOT_IMPL /* NewIntArray */,
- NOT_IMPL /* NewLongArray */,
- NOT_IMPL /* NewFloatArray */,
- NOT_IMPL /* NewDoubleArray */,
- NOT_IMPL /* GetBooleanArrayElements */,
- NOT_IMPL /* GetByteArrayElements */,
- NOT_IMPL /* GetCharArrayElements */,
- NOT_IMPL /* GetShortArrayElements */,
- NOT_IMPL /* GetIntArrayElements */,
- NOT_IMPL /* GetLongArrayElements */,
- NOT_IMPL /* GetFloatArrayElements */,
- NOT_IMPL /* GetDoubleArrayElements */,
- NOT_IMPL /* ReleaseBooleanArrayElements */,
- NOT_IMPL /* ReleaseByteArrayElements */,
- NOT_IMPL /* ReleaseCharArrayElements */,
- NOT_IMPL /* ReleaseShortArrayElements */,
- NOT_IMPL /* ReleaseIntArrayElements */,
- NOT_IMPL /* ReleaseLongArrayElements */,
- NOT_IMPL /* ReleaseFloatArrayElements */,
- NOT_IMPL /* ReleaseDoubleArrayElements */,
- NOT_IMPL /* GetBooleanArrayRegion */,
- NOT_IMPL /* GetByteArrayRegion */,
- NOT_IMPL /* GetCharArrayRegion */,
- NOT_IMPL /* GetShortArrayRegion */,
- NOT_IMPL /* GetIntArrayRegion */,
- NOT_IMPL /* GetLongArrayRegion */,
- NOT_IMPL /* GetFloatArrayRegion */,
- NOT_IMPL /* GetDoubleArrayRegion */,
- NOT_IMPL /* SetBooleanArrayRegion */,
- NOT_IMPL /* SetByteArrayRegion */,
- NOT_IMPL /* SetCharArrayRegion */,
- NOT_IMPL /* SetShortArrayRegion */,
- NOT_IMPL /* SetIntArrayRegion */,
- NOT_IMPL /* SetLongArrayRegion */,
- NOT_IMPL /* SetFloatArrayRegion */,
- NOT_IMPL /* SetDoubleArrayRegion */,
- NOT_IMPL /* RegisterNatives */,
- NOT_IMPL /* UnregisterNatives */,
- NOT_IMPL /* MonitorEnter */,
- NOT_IMPL /* MonitorExit */,
- NOT_IMPL /* GetJavaVM */,
+ RESERVED,
+ RESERVED,
+ RESERVED,
+ RESERVED,
+ _Jv_JNI_GetVersion, // GetVersion
+ _Jv_JNI_DefineClass, // DefineClass
+ _Jv_JNI_FindClass, // FindClass
+ _Jv_JNI_FromReflectedMethod, // FromReflectedMethod
+ _Jv_JNI_FromReflectedField, // FromReflectedField
+ _Jv_JNI_ToReflectedMethod, // ToReflectedMethod
+ _Jv_JNI_GetSuperclass, // GetSuperclass
+ _Jv_JNI_IsAssignableFrom, // IsAssignableFrom
+ _Jv_JNI_ToReflectedField, // ToReflectedField
+ _Jv_JNI_Throw, // Throw
+ _Jv_JNI_ThrowNew, // ThrowNew
+ _Jv_JNI_ExceptionOccurred, // ExceptionOccurred
+ _Jv_JNI_ExceptionDescribe, // ExceptionDescribe
+ _Jv_JNI_ExceptionClear, // ExceptionClear
+ _Jv_JNI_FatalError, // FatalError
+
+ _Jv_JNI_PushLocalFrame, // PushLocalFrame
+ _Jv_JNI_PopLocalFrame, // PopLocalFrame
+ _Jv_JNI_NewGlobalRef, // NewGlobalRef
+ _Jv_JNI_DeleteGlobalRef, // DeleteGlobalRef
+ _Jv_JNI_DeleteLocalRef, // DeleteLocalRef
+
+ _Jv_JNI_IsSameObject, // IsSameObject
+
+ _Jv_JNI_NewLocalRef, // NewLocalRef
+ _Jv_JNI_EnsureLocalCapacity, // EnsureLocalCapacity
+
+ _Jv_JNI_AllocObject, // AllocObject
+ _Jv_JNI_NewObject, // NewObject
+ _Jv_JNI_NewObjectV, // NewObjectV
+ _Jv_JNI_NewObjectA, // NewObjectA
+ _Jv_JNI_GetObjectClass, // GetObjectClass
+ _Jv_JNI_IsInstanceOf, // IsInstanceOf
+ _Jv_JNI_GetAnyMethodID<false>, // GetMethodID
+
+ _Jv_JNI_CallMethod<jobject>, // CallObjectMethod
+ _Jv_JNI_CallMethodV<jobject>, // CallObjectMethodV
+ _Jv_JNI_CallMethodA<jobject>, // CallObjectMethodA
+ _Jv_JNI_CallMethod<jboolean>, // CallBooleanMethod
+ _Jv_JNI_CallMethodV<jboolean>, // CallBooleanMethodV
+ _Jv_JNI_CallMethodA<jboolean>, // CallBooleanMethodA
+ _Jv_JNI_CallMethod<jbyte>, // CallByteMethod
+ _Jv_JNI_CallMethodV<jbyte>, // CallByteMethodV
+ _Jv_JNI_CallMethodA<jbyte>, // CallByteMethodA
+ _Jv_JNI_CallMethod<jchar>, // CallCharMethod
+ _Jv_JNI_CallMethodV<jchar>, // CallCharMethodV
+ _Jv_JNI_CallMethodA<jchar>, // CallCharMethodA
+ _Jv_JNI_CallMethod<jshort>, // CallShortMethod
+ _Jv_JNI_CallMethodV<jshort>, // CallShortMethodV
+ _Jv_JNI_CallMethodA<jshort>, // CallShortMethodA
+ _Jv_JNI_CallMethod<jint>, // CallIntMethod
+ _Jv_JNI_CallMethodV<jint>, // CallIntMethodV
+ _Jv_JNI_CallMethodA<jint>, // CallIntMethodA
+ _Jv_JNI_CallMethod<jlong>, // CallLongMethod
+ _Jv_JNI_CallMethodV<jlong>, // CallLongMethodV
+ _Jv_JNI_CallMethodA<jlong>, // CallLongMethodA
+ _Jv_JNI_CallMethod<jfloat>, // CallFloatMethod
+ _Jv_JNI_CallMethodV<jfloat>, // CallFloatMethodV
+ _Jv_JNI_CallMethodA<jfloat>, // CallFloatMethodA
+ _Jv_JNI_CallMethod<jdouble>, // CallDoubleMethod
+ _Jv_JNI_CallMethodV<jdouble>, // CallDoubleMethodV
+ _Jv_JNI_CallMethodA<jdouble>, // CallDoubleMethodA
+ _Jv_JNI_CallVoidMethod, // CallVoidMethod
+ _Jv_JNI_CallVoidMethodV, // CallVoidMethodV
+ _Jv_JNI_CallVoidMethodA, // CallVoidMethodA
+
+ // Nonvirtual method invocation functions follow.
+ _Jv_JNI_CallAnyMethod<jobject, nonvirtual>, // CallNonvirtualObjectMethod
+ _Jv_JNI_CallAnyMethodV<jobject, nonvirtual>, // CallNonvirtualObjectMethodV
+ _Jv_JNI_CallAnyMethodA<jobject, nonvirtual>, // CallNonvirtualObjectMethodA
+ _Jv_JNI_CallAnyMethod<jboolean, nonvirtual>, // CallNonvirtualBooleanMethod
+ _Jv_JNI_CallAnyMethodV<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodV
+ _Jv_JNI_CallAnyMethodA<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodA
+ _Jv_JNI_CallAnyMethod<jbyte, nonvirtual>, // CallNonvirtualByteMethod
+ _Jv_JNI_CallAnyMethodV<jbyte, nonvirtual>, // CallNonvirtualByteMethodV
+ _Jv_JNI_CallAnyMethodA<jbyte, nonvirtual>, // CallNonvirtualByteMethodA
+ _Jv_JNI_CallAnyMethod<jchar, nonvirtual>, // CallNonvirtualCharMethod
+ _Jv_JNI_CallAnyMethodV<jchar, nonvirtual>, // CallNonvirtualCharMethodV
+ _Jv_JNI_CallAnyMethodA<jchar, nonvirtual>, // CallNonvirtualCharMethodA
+ _Jv_JNI_CallAnyMethod<jshort, nonvirtual>, // CallNonvirtualShortMethod
+ _Jv_JNI_CallAnyMethodV<jshort, nonvirtual>, // CallNonvirtualShortMethodV
+ _Jv_JNI_CallAnyMethodA<jshort, nonvirtual>, // CallNonvirtualShortMethodA
+ _Jv_JNI_CallAnyMethod<jint, nonvirtual>, // CallNonvirtualIntMethod
+ _Jv_JNI_CallAnyMethodV<jint, nonvirtual>, // CallNonvirtualIntMethodV
+ _Jv_JNI_CallAnyMethodA<jint, nonvirtual>, // CallNonvirtualIntMethodA
+ _Jv_JNI_CallAnyMethod<jlong, nonvirtual>, // CallNonvirtualLongMethod
+ _Jv_JNI_CallAnyMethodV<jlong, nonvirtual>, // CallNonvirtualLongMethodV
+ _Jv_JNI_CallAnyMethodA<jlong, nonvirtual>, // CallNonvirtualLongMethodA
+ _Jv_JNI_CallAnyMethod<jfloat, nonvirtual>, // CallNonvirtualFloatMethod
+ _Jv_JNI_CallAnyMethodV<jfloat, nonvirtual>, // CallNonvirtualFloatMethodV
+ _Jv_JNI_CallAnyMethodA<jfloat, nonvirtual>, // CallNonvirtualFloatMethodA
+ _Jv_JNI_CallAnyMethod<jdouble, nonvirtual>, // CallNonvirtualDoubleMethod
+ _Jv_JNI_CallAnyMethodV<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodV
+ _Jv_JNI_CallAnyMethodA<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodA
+ _Jv_JNI_CallAnyVoidMethod<nonvirtual>, // CallNonvirtualVoidMethod
+ _Jv_JNI_CallAnyVoidMethodV<nonvirtual>, // CallNonvirtualVoidMethodV
+ _Jv_JNI_CallAnyVoidMethodA<nonvirtual>, // CallNonvirtualVoidMethodA
+
+ _Jv_JNI_GetAnyFieldID<false>, // GetFieldID
+ _Jv_JNI_GetField<jobject>, // GetObjectField
+ _Jv_JNI_GetField<jboolean>, // GetBooleanField
+ _Jv_JNI_GetField<jbyte>, // GetByteField
+ _Jv_JNI_GetField<jchar>, // GetCharField
+ _Jv_JNI_GetField<jshort>, // GetShortField
+ _Jv_JNI_GetField<jint>, // GetIntField
+ _Jv_JNI_GetField<jlong>, // GetLongField
+ _Jv_JNI_GetField<jfloat>, // GetFloatField
+ _Jv_JNI_GetField<jdouble>, // GetDoubleField
+ _Jv_JNI_SetField, // SetObjectField
+ _Jv_JNI_SetField, // SetBooleanField
+ _Jv_JNI_SetField, // SetByteField
+ _Jv_JNI_SetField, // SetCharField
+ _Jv_JNI_SetField, // SetShortField
+ _Jv_JNI_SetField, // SetIntField
+ _Jv_JNI_SetField, // SetLongField
+ _Jv_JNI_SetField, // SetFloatField
+ _Jv_JNI_SetField, // SetDoubleField
+ _Jv_JNI_GetAnyMethodID<true>, // GetStaticMethodID
+
+ _Jv_JNI_CallStaticMethod<jobject>, // CallStaticObjectMethod
+ _Jv_JNI_CallStaticMethodV<jobject>, // CallStaticObjectMethodV
+ _Jv_JNI_CallStaticMethodA<jobject>, // CallStaticObjectMethodA
+ _Jv_JNI_CallStaticMethod<jboolean>, // CallStaticBooleanMethod
+ _Jv_JNI_CallStaticMethodV<jboolean>, // CallStaticBooleanMethodV
+ _Jv_JNI_CallStaticMethodA<jboolean>, // CallStaticBooleanMethodA
+ _Jv_JNI_CallStaticMethod<jbyte>, // CallStaticByteMethod
+ _Jv_JNI_CallStaticMethodV<jbyte>, // CallStaticByteMethodV
+ _Jv_JNI_CallStaticMethodA<jbyte>, // CallStaticByteMethodA
+ _Jv_JNI_CallStaticMethod<jchar>, // CallStaticCharMethod
+ _Jv_JNI_CallStaticMethodV<jchar>, // CallStaticCharMethodV
+ _Jv_JNI_CallStaticMethodA<jchar>, // CallStaticCharMethodA
+ _Jv_JNI_CallStaticMethod<jshort>, // CallStaticShortMethod
+ _Jv_JNI_CallStaticMethodV<jshort>, // CallStaticShortMethodV
+ _Jv_JNI_CallStaticMethodA<jshort>, // CallStaticShortMethodA
+ _Jv_JNI_CallStaticMethod<jint>, // CallStaticIntMethod
+ _Jv_JNI_CallStaticMethodV<jint>, // CallStaticIntMethodV
+ _Jv_JNI_CallStaticMethodA<jint>, // CallStaticIntMethodA
+ _Jv_JNI_CallStaticMethod<jlong>, // CallStaticLongMethod
+ _Jv_JNI_CallStaticMethodV<jlong>, // CallStaticLongMethodV
+ _Jv_JNI_CallStaticMethodA<jlong>, // CallStaticLongMethodA
+ _Jv_JNI_CallStaticMethod<jfloat>, // CallStaticFloatMethod
+ _Jv_JNI_CallStaticMethodV<jfloat>, // CallStaticFloatMethodV
+ _Jv_JNI_CallStaticMethodA<jfloat>, // CallStaticFloatMethodA
+ _Jv_JNI_CallStaticMethod<jdouble>, // CallStaticDoubleMethod
+ _Jv_JNI_CallStaticMethodV<jdouble>, // CallStaticDoubleMethodV
+ _Jv_JNI_CallStaticMethodA<jdouble>, // CallStaticDoubleMethodA
+ _Jv_JNI_CallStaticVoidMethod, // CallStaticVoidMethod
+ _Jv_JNI_CallStaticVoidMethodV, // CallStaticVoidMethodV
+ _Jv_JNI_CallStaticVoidMethodA, // CallStaticVoidMethodA
+
+ _Jv_JNI_GetAnyFieldID<true>, // GetStaticFieldID
+ _Jv_JNI_GetStaticField<jobject>, // GetStaticObjectField
+ _Jv_JNI_GetStaticField<jboolean>, // GetStaticBooleanField
+ _Jv_JNI_GetStaticField<jbyte>, // GetStaticByteField
+ _Jv_JNI_GetStaticField<jchar>, // GetStaticCharField
+ _Jv_JNI_GetStaticField<jshort>, // GetStaticShortField
+ _Jv_JNI_GetStaticField<jint>, // GetStaticIntField
+ _Jv_JNI_GetStaticField<jlong>, // GetStaticLongField
+ _Jv_JNI_GetStaticField<jfloat>, // GetStaticFloatField
+ _Jv_JNI_GetStaticField<jdouble>, // GetStaticDoubleField
+ _Jv_JNI_SetStaticField, // SetStaticObjectField
+ _Jv_JNI_SetStaticField, // SetStaticBooleanField
+ _Jv_JNI_SetStaticField, // SetStaticByteField
+ _Jv_JNI_SetStaticField, // SetStaticCharField
+ _Jv_JNI_SetStaticField, // SetStaticShortField
+ _Jv_JNI_SetStaticField, // SetStaticIntField
+ _Jv_JNI_SetStaticField, // SetStaticLongField
+ _Jv_JNI_SetStaticField, // SetStaticFloatField
+ _Jv_JNI_SetStaticField, // SetStaticDoubleField
+ _Jv_JNI_NewString, // NewString
+ _Jv_JNI_GetStringLength, // GetStringLength
+ _Jv_JNI_GetStringChars, // GetStringChars
+ _Jv_JNI_ReleaseStringChars, // ReleaseStringChars
+ _Jv_JNI_NewStringUTF, // NewStringUTF
+ _Jv_JNI_GetStringUTFLength, // GetStringUTFLength
+ _Jv_JNI_GetStringUTFChars, // GetStringUTFChars
+ _Jv_JNI_ReleaseStringUTFChars, // ReleaseStringUTFChars
+ _Jv_JNI_GetArrayLength, // GetArrayLength
+ _Jv_JNI_NewObjectArray, // NewObjectArray
+ _Jv_JNI_GetObjectArrayElement, // GetObjectArrayElement
+ _Jv_JNI_SetObjectArrayElement, // SetObjectArrayElement
+ _Jv_JNI_NewPrimitiveArray<jboolean, JvPrimClass (boolean)>,
+ // NewBooleanArray
+ _Jv_JNI_NewPrimitiveArray<jbyte, JvPrimClass (byte)>, // NewByteArray
+ _Jv_JNI_NewPrimitiveArray<jchar, JvPrimClass (char)>, // NewCharArray
+ _Jv_JNI_NewPrimitiveArray<jshort, JvPrimClass (short)>, // NewShortArray
+ _Jv_JNI_NewPrimitiveArray<jint, JvPrimClass (int)>, // NewIntArray
+ _Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>, // NewLongArray
+ _Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>, // NewFloatArray
+ _Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>, // NewDoubleArray
+ _Jv_JNI_GetPrimitiveArrayElements<jboolean, JvPrimClass (boolean)>,
+ // GetBooleanArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jbyte, JvPrimClass (byte)>,
+ // GetByteArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jchar, JvPrimClass (char)>,
+ // GetCharArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jshort, JvPrimClass (short)>,
+ // GetShortArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jint, JvPrimClass (int)>,
+ // GetIntArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jlong, JvPrimClass (long)>,
+ // GetLongArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jfloat, JvPrimClass (float)>,
+ // GetFloatArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jdouble, JvPrimClass (double)>,
+ // GetDoubleArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jboolean, JvPrimClass (boolean)>,
+ // ReleaseBooleanArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jbyte, JvPrimClass (byte)>,
+ // ReleaseByteArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jchar, JvPrimClass (char)>,
+ // ReleaseCharArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jshort, JvPrimClass (short)>,
+ // ReleaseShortArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jint, JvPrimClass (int)>,
+ // ReleaseIntArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jlong, JvPrimClass (long)>,
+ // ReleaseLongArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jfloat, JvPrimClass (float)>,
+ // ReleaseFloatArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jdouble, JvPrimClass (double)>,
+ // ReleaseDoubleArrayElements
+ _Jv_JNI_GetPrimitiveArrayRegion<jboolean, JvPrimClass (boolean)>,
+ // GetBooleanArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jbyte, JvPrimClass (byte)>,
+ // GetByteArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jchar, JvPrimClass (char)>,
+ // GetCharArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jshort, JvPrimClass (short)>,
+ // GetShortArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jint, JvPrimClass (int)>,
+ // GetIntArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jlong, JvPrimClass (long)>,
+ // GetLongArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jfloat, JvPrimClass (float)>,
+ // GetFloatArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jdouble, JvPrimClass (double)>,
+ // GetDoubleArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jboolean, JvPrimClass (boolean)>,
+ // SetBooleanArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jbyte, JvPrimClass (byte)>,
+ // SetByteArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jchar, JvPrimClass (char)>,
+ // SetCharArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jshort, JvPrimClass (short)>,
+ // SetShortArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jint, JvPrimClass (int)>,
+ // SetIntArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jlong, JvPrimClass (long)>,
+ // SetLongArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jfloat, JvPrimClass (float)>,
+ // SetFloatArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jdouble, JvPrimClass (double)>,
+ // SetDoubleArrayRegion
+ _Jv_JNI_RegisterNatives, // RegisterNatives
+ _Jv_JNI_UnregisterNatives, // UnregisterNatives
+ _Jv_JNI_MonitorEnter, // MonitorEnter
+ _Jv_JNI_MonitorExit, // MonitorExit
+ _Jv_JNI_GetJavaVM, // GetJavaVM
+
+ _Jv_JNI_GetStringRegion, // GetStringRegion
+ _Jv_JNI_GetStringUTFRegion, // GetStringUTFRegion
+ _Jv_JNI_GetPrimitiveArrayCritical, // GetPrimitiveArrayCritical
+ _Jv_JNI_ReleasePrimitiveArrayCritical, // ReleasePrimitiveArrayCritical
+ _Jv_JNI_GetStringCritical, // GetStringCritical
+ _Jv_JNI_ReleaseStringCritical, // ReleaseStringCritical
+
+ _Jv_JNI_NewWeakGlobalRef, // NewWeakGlobalRef
+ _Jv_JNI_DeleteWeakGlobalRef, // DeleteWeakGlobalRef
+
+ _Jv_JNI_ExceptionCheck, // ExceptionCheck
+
+ _Jv_JNI_NewDirectByteBuffer, // NewDirectByteBuffer
+ _Jv_JNI_GetDirectBufferAddress, // GetDirectBufferAddress
+ _Jv_JNI_GetDirectBufferCapacity // GetDirectBufferCapacity
+};
+
+struct JNIInvokeInterface _Jv_JNI_InvokeFunctions =
+{
+ RESERVED,
+ RESERVED,
+ RESERVED,
+
+ _Jv_JNI_DestroyJavaVM,
+ _Jv_JNI_AttachCurrentThread,
+ _Jv_JNI_DetachCurrentThread,
+ _Jv_JNI_GetEnv,
+ _Jv_JNI_AttachCurrentThreadAsDaemon
};