ec5dd52b37
* jni.cc (_Jv_JNI_AttachCurrentThread): Return environment if it already exists. From-SVN: r109936
2890 lines
77 KiB
C++
2890 lines
77 KiB
C++
// jni.cc - JNI implementation, including the jump table.
|
||
|
||
/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
|
||
Free Software Foundation
|
||
|
||
This file is part of libgcj.
|
||
|
||
This software is copyrighted work licensed under the terms of the
|
||
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
|
||
details. */
|
||
|
||
#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/StringBuffer.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/Buffer.h>
|
||
#include <java/nio/DirectByteBufferImpl.h>
|
||
#include <java/nio/DirectByteBufferImpl$ReadWrite.h>
|
||
#include <java/util/IdentityHashMap.h>
|
||
#include <gnu/gcj/RawData.h>
|
||
#include <java/lang/ClassNotFoundException.h>
|
||
|
||
#include <gcj/method.h>
|
||
#include <gcj/field.h>
|
||
|
||
#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 16
|
||
|
||
// 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;
|
||
|
||
// Flag to indicate some locals were allocated.
|
||
int allocated_p;
|
||
|
||
// Number of elements in frame.
|
||
int size;
|
||
|
||
// 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
|
||
|
||
|
||
|
||
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 ());
|
||
}
|
||
|
||
jobject
|
||
_Jv_UnwrapJNIweakReference (jobject obj)
|
||
{
|
||
return unwrap (obj);
|
||
}
|
||
|
||
|
||
|
||
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;
|
||
frame->allocated_p = 0;
|
||
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;
|
||
frame->allocated_p = 1;
|
||
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;
|
||
env->locals->allocated_p = 1;
|
||
}
|
||
|
||
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 reusable bottom_locals, and we must
|
||
// not free it. However, we must be sure to clear all its elements.
|
||
if (n == NULL)
|
||
{
|
||
if (rf->allocated_p)
|
||
memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
|
||
rf->allocated_p = 0;
|
||
rf = NULL;
|
||
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)
|
||
{
|
||
// Only enter slow path when we're not at the bottom, or there have been
|
||
// allocations. Usually this is false and we can just null out the locals
|
||
// field.
|
||
|
||
if (__builtin_expect ((env->locals->next
|
||
|| env->locals->allocated_p), false))
|
||
_Jv_JNI_PopLocalFrame (env, NULL, MARK_SYSTEM);
|
||
else
|
||
env->locals = NULL;
|
||
|
||
if (__builtin_expect (env->ex != NULL, false))
|
||
{
|
||
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));
|
||
}
|
||
|
||
|
||
|
||
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 (clazz2)->isAssignableFrom (unwrap (clazz1));
|
||
}
|
||
|
||
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$,
|
||
NULL);
|
||
|
||
jclass *elts = elements (argtypes);
|
||
elts[0] = &java::lang::String::class$;
|
||
|
||
Constructor *cons = clazz->getConstructor (argtypes);
|
||
|
||
jobjectArray values = JvNewObjectArray (1, &java::lang::String::class$,
|
||
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);
|
||
}
|
||
|
||
|
||
|
||
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 = _Jv_AllocObject (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));
|
||
}
|
||
|
||
|
||
|
||
//
|
||
// 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 ();
|
||
}
|
||
|
||
java::lang::StringBuffer *name_sig =
|
||
new java::lang::StringBuffer (JvNewStringUTF (name));
|
||
name_sig->append ((jchar) ' ')->append (JvNewStringUTF (s));
|
||
env->ex = new java::lang::NoSuchMethodError (name_sig->toString ());
|
||
}
|
||
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->chars(), "<init>")
|
||
&& id->signature->len() > 2
|
||
&& id->signature->chars()[0] == '('
|
||
&& ! strcmp (&id->signature->chars()[id->signature->len() - 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->chars(), "<init>")
|
||
&& id->signature->len() > 2
|
||
&& id->signature->chars()[0] == '('
|
||
&& ! strcmp (&id->signature->chars()[id->signature->len() - 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->chars(), "<init>")
|
||
&& id->signature->len() > 2
|
||
&& id->signature->chars()[0] == '('
|
||
&& ! strcmp (&id->signature->chars()[id->signature->len() - 2],
|
||
")V"));
|
||
|
||
return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
|
||
id, args);
|
||
}
|
||
|
||
|
||
|
||
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];
|
||
java::lang::ClassLoader *loader = clazz->getClassLoaderInternal ();
|
||
jclass field_class = _Jv_FindClassFromSignature ((char *) s, loader);
|
||
if (! field_class)
|
||
throw new java::lang::ClassNotFoundException(JvNewStringUTF(s));
|
||
|
||
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_Linker::resolve_field (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)
|
||
{
|
||
_Jv_Free ((void *) utf);
|
||
}
|
||
|
||
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 jobjectArray JNICALL
|
||
_Jv_JNI_NewObjectArray (JNIEnv *env, jsize length,
|
||
jclass elementClass, jobject init)
|
||
{
|
||
try
|
||
{
|
||
elementClass = unwrap (elementClass);
|
||
init = unwrap (init);
|
||
|
||
_Jv_CheckCast (elementClass, init);
|
||
jarray result = JvNewObjectArray (length, elementClass, init);
|
||
return (jobjectArray) wrap_value (env, result);
|
||
}
|
||
catch (jthrowable t)
|
||
{
|
||
env->ex = t;
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
static jobject JNICALL
|
||
_Jv_JNI_GetObjectArrayElement (JNIEnv *env, jobjectArray array,
|
||
jsize index)
|
||
{
|
||
if ((unsigned) index >= (unsigned) array->length)
|
||
_Jv_ThrowBadArrayIndex (index);
|
||
jobject *elts = elements (unwrap (array));
|
||
return wrap_value (env, elts[index]);
|
||
}
|
||
|
||
static void JNICALL
|
||
_Jv_JNI_SetObjectArrayElement (JNIEnv *env, jobjectArray array,
|
||
jsize index, jobject value)
|
||
{
|
||
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;
|
||
}
|
||
}
|
||
|
||
template<typename T, jclass K>
|
||
static JArray<T> * JNICALL
|
||
_Jv_JNI_NewPrimitiveArray (JNIEnv *env, jsize length)
|
||
{
|
||
try
|
||
{
|
||
return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
|
||
}
|
||
catch (jthrowable t)
|
||
{
|
||
env->ex = t;
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
template<typename T, jclass K>
|
||
static T * JNICALL
|
||
_Jv_JNI_GetPrimitiveArrayElements (JNIEnv *env, JArray<T> *array,
|
||
jboolean *isCopy)
|
||
{
|
||
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;
|
||
}
|
||
|
||
template<typename T, jclass K>
|
||
static void JNICALL
|
||
_Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv *env, JArray<T> *array,
|
||
T *, jint /* mode */)
|
||
{
|
||
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);
|
||
}
|
||
|
||
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)
|
||
{
|
||
try
|
||
{
|
||
_Jv_MonitorExit (unwrap (obj));
|
||
return 0;
|
||
}
|
||
catch (jthrowable t)
|
||
{
|
||
env->ex = t;
|
||
}
|
||
return JNI_ERR;
|
||
}
|
||
|
||
// JDK 1.2
|
||
jobject JNICALL
|
||
_Jv_JNI_ToReflectedField (JNIEnv *env, jclass cls, jfieldID fieldID,
|
||
jboolean)
|
||
{
|
||
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
|
||
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);
|
||
}
|
||
|
||
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$.isInstance (method))
|
||
return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
|
||
return
|
||
_Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
|
||
}
|
||
|
||
// JDK 1.2.
|
||
jweak JNICALL
|
||
_Jv_JNI_NewWeakGlobalRef (JNIEnv *env, jobject obj)
|
||
{
|
||
using namespace gnu::gcj::runtime;
|
||
JNIWeakRef *ref = NULL;
|
||
|
||
try
|
||
{
|
||
// This seems weird but I think it is correct.
|
||
obj = unwrap (obj);
|
||
ref = new JNIWeakRef (obj);
|
||
mark_for_gc (ref, global_ref_table);
|
||
}
|
||
catch (jthrowable t)
|
||
{
|
||
env->ex = t;
|
||
}
|
||
|
||
return reinterpret_cast<jweak> (ref);
|
||
}
|
||
|
||
void JNICALL
|
||
_Jv_JNI_DeleteWeakGlobalRef (JNIEnv *, jweak obj)
|
||
{
|
||
using namespace gnu::gcj::runtime;
|
||
JNIWeakRef *ref = reinterpret_cast<JNIWeakRef *> (obj);
|
||
unmark_for_gc (ref, global_ref_table);
|
||
ref->clear ();
|
||
}
|
||
|
||
|
||
|
||
// Direct byte buffers.
|
||
|
||
static jobject JNICALL
|
||
_Jv_JNI_NewDirectByteBuffer (JNIEnv *, void *address, jlong length)
|
||
{
|
||
using namespace gnu::gcj;
|
||
using namespace java::nio;
|
||
return new DirectByteBufferImpl$ReadWrite
|
||
(reinterpret_cast<RawData *> (address), length);
|
||
}
|
||
|
||
static void * JNICALL
|
||
_Jv_JNI_GetDirectBufferAddress (JNIEnv *, jobject buffer)
|
||
{
|
||
using namespace java::nio;
|
||
if (! _Jv_IsInstanceOf (buffer, &Buffer::class$))
|
||
return NULL;
|
||
Buffer *tmp = static_cast<Buffer *> (buffer);
|
||
return reinterpret_cast<void *> (tmp->address);
|
||
}
|
||
|
||
static jlong JNICALL
|
||
_Jv_JNI_GetDirectBufferCapacity (JNIEnv *, jobject buffer)
|
||
{
|
||
using namespace java::nio;
|
||
if (! _Jv_IsInstanceOf (buffer, &Buffer::class$))
|
||
return -1;
|
||
Buffer *tmp = static_cast<Buffer *> (buffer);
|
||
if (tmp->address == NULL)
|
||
return -1;
|
||
return tmp->capacity();
|
||
}
|
||
|
||
|
||
|
||
// 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));
|
||
}
|
||
else
|
||
{
|
||
int savesize = nathash_size;
|
||
JNINativeMethod *savehash = nathash;
|
||
nathash_size *= 2;
|
||
nathash =
|
||
(JNINativeMethod *) _Jv_AllocBytes (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);
|
||
// This was already strduped in _Jv_JNI_RegisterNatives.
|
||
slot->signature = 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);
|
||
|
||
JNINativeMethod dottedMethod;
|
||
|
||
// 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];
|
||
|
||
// Copy this JNINativeMethod and do a slash to dot
|
||
// conversion on the signature.
|
||
dottedMethod.name = methods[j].name;
|
||
dottedMethod.signature = strdup (methods[j].signature);
|
||
dottedMethod.fnPtr = methods[j].fnPtr;
|
||
char *c = dottedMethod.signature;
|
||
while (*c)
|
||
{
|
||
if (*c == '/')
|
||
*c = '.';
|
||
c++;
|
||
}
|
||
|
||
if (! strcmp (self->name->chars (), dottedMethod.name)
|
||
&& ! strcmp (self->signature->chars (), dottedMethod.signature))
|
||
{
|
||
if (! (self->accflags & java::lang::reflect::Modifier::NATIVE))
|
||
break;
|
||
|
||
// Found a match that is native.
|
||
found = true;
|
||
nathash_add (&dottedMethod);
|
||
|
||
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;
|
||
}
|
||
|
||
|
||
|
||
// 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->chars ();
|
||
const unsigned char *limit = fn + func_name->len ();
|
||
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->chars ();
|
||
limit = sig + signature->len ();
|
||
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 (__builtin_expect (env == NULL, false))
|
||
{
|
||
env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
|
||
env->p = &_Jv_JNIFunctions;
|
||
env->klass = klass;
|
||
env->locals = NULL;
|
||
// We set env->ex below.
|
||
|
||
// Set up the bottom, reusable frame.
|
||
env->bottom_locals = (_Jv_JNI_LocalFrame *)
|
||
_Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
|
||
+ (FRAME_SIZE
|
||
* sizeof (jobject)));
|
||
|
||
env->bottom_locals->marker = MARK_SYSTEM;
|
||
env->bottom_locals->size = FRAME_SIZE;
|
||
env->bottom_locals->next = NULL;
|
||
env->bottom_locals->allocated_p = 0;
|
||
memset (&env->bottom_locals->vec[0], 0,
|
||
env->bottom_locals->size * sizeof (jobject));
|
||
|
||
_Jv_SetCurrentJNIEnv (env);
|
||
}
|
||
|
||
// If we're in a simple JNI call (non-nested), we can just reuse the
|
||
// locals frame we allocated many calls ago, back when the env was first
|
||
// built, above.
|
||
|
||
if (__builtin_expect (env->locals == NULL, true))
|
||
env->locals = env->bottom_locals;
|
||
|
||
else
|
||
{
|
||
// Alternatively, we might be re-entering JNI, in which case we can't
|
||
// reuse the bottom_locals frame, because it is already underneath
|
||
// us. So we need to make a new one.
|
||
|
||
_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->allocated_p = 0;
|
||
frame->next = env->locals;
|
||
|
||
memset (&frame->vec[0], 0,
|
||
frame->size * sizeof (jobject));
|
||
|
||
env->locals = frame;
|
||
}
|
||
|
||
env->ex = NULL;
|
||
|
||
return env;
|
||
}
|
||
|
||
// Destroy the env's reusable resources. This is called from the thread
|
||
// destructor "finalize_native" in natThread.cc
|
||
void
|
||
_Jv_FreeJNIEnv (_Jv_JNIEnv *env)
|
||
{
|
||
if (env == NULL)
|
||
return;
|
||
|
||
if (env->bottom_locals != NULL)
|
||
_Jv_Free (env->bottom_locals);
|
||
|
||
_Jv_Free (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)
|
||
{
|
||
int name_length = name->len();
|
||
int sig_length = signature->len();
|
||
char buf[10 + 6 * (name_length + sig_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->chars (), name_length);
|
||
buf[name_length] = '\0';
|
||
strncpy (buf + name_length + 1, signature->chars (), sig_length);
|
||
buf[name_length + sig_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->chars ());
|
||
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.
|
||
#if FFI_NATIVE_RAW_API
|
||
ffi_raw_call (&_this->jni_cif, (void (*)()) _this->function,
|
||
ret, real_args);
|
||
#else
|
||
ffi_java_raw_call (&_this->jni_cif, (void (*)()) _this->function,
|
||
ret, real_args);
|
||
#endif
|
||
|
||
// We might need to unwrap a JNI weak reference here.
|
||
if (_this->jni_cif.rtype == &ffi_type_pointer)
|
||
{
|
||
_Jv_value *val = (_Jv_value *) ret;
|
||
val->object_value = unwrap (val->object_value);
|
||
}
|
||
|
||
if (sync != NULL)
|
||
_Jv_MonitorExit (sync);
|
||
|
||
_Jv_JNI_PopSystemFrame (env);
|
||
}
|
||
|
||
#endif /* INTERPRETER */
|
||
|
||
|
||
|
||
//
|
||
// 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.
|
||
JNIEnv *env = _Jv_GetCurrentJNIEnv ();
|
||
if (env != NULL)
|
||
{
|
||
*penv = reinterpret_cast<void *> (env);
|
||
return 0;
|
||
}
|
||
|
||
env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
|
||
if (env == NULL)
|
||
return JNI_ERR;
|
||
env->p = &_Jv_JNIFunctions;
|
||
env->ex = NULL;
|
||
env->klass = NULL;
|
||
env->bottom_locals
|
||
= (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
|
||
+ (FRAME_SIZE
|
||
* sizeof (jobject)));
|
||
env->locals = env->bottom_locals;
|
||
if (env->locals == NULL)
|
||
{
|
||
_Jv_Free (env);
|
||
return JNI_ERR;
|
||
}
|
||
|
||
env->locals->allocated_p = 0;
|
||
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);
|
||
|
||
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;
|
||
|
||
JvVMInitArgs* vm_args = reinterpret_cast<JvVMInitArgs *> (args);
|
||
|
||
jint result = _Jv_CreateJavaVM (vm_args);
|
||
if (result)
|
||
return result;
|
||
|
||
// FIXME: synchronize
|
||
JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
|
||
if (nvm == NULL)
|
||
return JNI_ERR;
|
||
nvm->functions = &_Jv_JNI_InvokeFunctions;
|
||
|
||
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;
|
||
}
|
||
|
||
|
||
|
||
#define RESERVED NULL
|
||
|
||
struct JNINativeInterface _Jv_JNIFunctions =
|
||
{
|
||
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
|
||
};
|