natNativeThread.cc: New file.

* gnu/gcj/jni/natNativeThread.cc: New file.
	* gnu/gcj/jni/NativeThread.java: New file.
	* java/lang/Thread.java (data): Now a RawData.
	* include/jvm.h (_Jv_GetCurrentJNIEnv, _Jv_SetCurrentJNIEnv):
	Declare.
	* Makefile.in: Rebuilt.
	* Makefile.am (java/lang/Thread.h): New target.
	(ordinary_java_source_files): Added NativeThread.java.
	(nat_source_files): Added natNativeThread.cc.
	* java/lang/natThread.cc: Include <jni.h>
	(struct natThread): Added `jni_env' field.
	(_Jv_GetCurrentJNIEnv): New function.
	(_Jv_SetCurrentJNIEnv): Likewise.
	(initialize_native): Initialize jni_env.
	Include RawData.h.
	* jni.cc (ThreadGroupClass): New define.
	(_Jv_JNI_InvokeFunctions): New structure.
	(JNI_GetCreatedJavaVMs): New function.
	(the_vm): New global.
	(JNI_GetDefaultJavaVMInitArgs): New function.
	Include NativeThread.h.
	(NativeThreadClass): New define.
	(_Jv_JNI_EnsureLocalCapacity): Return JNI_ERR, not -1.
	(_Jv_JNI_DestroyJavaVM): New function.
	(_Jv_JNI_AttachCurrentThread): New function.
	(_Jv_JNI_DetachCurrentThread): New function.
	(_Jv_JNI_GetEnv): New function.
	(JNI_CreateJavaVM): New function.
	(_Jv_JNI_GetJavaVM): New function.
	(_Jv_JNIFunctions): Added entry for GetJavaVM.
	* include/jni.h (JavaVMAttachArgs): New structure.
	(JNI_EDETACHED): New define.
	(JNI_EVERSION): Likewise.
	(JavaVM): Define properly.
	(struct JNIInvokeInterface): New structure.
	(class _Jv_JavaVM): New class.
	(JNI_OnLoad, JNI_OnUnload): Declare.
	(JNI_GetDefaultJavaVMInitArgs, JNI_CreateJavaVM,
	JNI_GetCreatedJavaVMs): Declare.
	(JavaVMInitArgs): New typedef.
	(JavaVMOption): Likewise.
	(JNI_ERR): New define.
	(JNI_OK): Likewise.

From-SVN: r31901

libjava/include/jni.h

@@ -23,6 +23,7 @@ details.  */
 #include <gcj/javaprims.h>
 
 typedef struct _Jv_JNIEnv JNIEnv;
+typedef struct _Jv_JavaVM JavaVM;
 
 #define JNI_TRUE true
 #define JNI_FALSE false
@@ -59,6 +60,7 @@ typedef void *jfieldID;
 typedef void *jmethodID;
 
 typedef const struct JNINativeInterface *JNIEnv;
+typedef const struct JNIInvokeInterface *JavaVM;
 
 #define JNI_TRUE 1
 #define JNI_TRUE 0
@@ -76,6 +78,32 @@ typedef jobject jweak;
 #define JNI_COMMIT 1
 #define JNI_ABORT  2
 
+/* Error codes */
+#define JNI_OK            0
+#define JNI_ERR          -1
+#define JNI_EDETACHED    -2
+#define JNI_EVERSION     -3
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+/* These functions might be defined in libraries which we load; the
+   JNI implementation calls them at the appropriate times.  */
+extern jint JNI_OnLoad (JavaVM *, void *);
+extern void JNI_OnUnload (JavaVM *, void *);
+
+/* These functions are called by user code to start using the
+   invocation API.  */
+extern jint JNI_GetDefaultJavaVMInitArgs (void *);
+extern jint JNI_CreateJavaVM (JavaVM **, void **, void *);
+extern jint JNI_GetCreatedJavaVMs(JavaVM **, jsize, jsize *);
+
+#ifdef __cplusplus
+};
+#endif /* __cplusplus */
+
 typedef union jvalue
 {
   jboolean z;
@@ -99,9 +127,6 @@ typedef struct
   void *fnPtr;			/* Sigh.  */
 } JNINativeMethod;
 
-/* FIXME: this is just a placeholder.  */
-typedef int JavaVM;
-
 struct JNINativeInterface
 {
   _Jv_func reserved0;
@@ -1402,4 +1427,74 @@ public:
 };
 #endif /* __cplusplus */
 
+/*
+ * Invocation API.
+ */
+
+struct JNIInvokeInterface
+{
+  _Jv_func reserved0;
+  _Jv_func reserved1;
+  _Jv_func reserved2;
+
+  jint (*DestroyJavaVM)         (JavaVM *);
+  jint (*AttachCurrentThread)   (JavaVM *, void **, void *);
+  jint (*DetachCurrentThread)   (JavaVM *);
+  jint (*GetEnv)                (JavaVM *, void **, jint);
+};
+
+#ifdef __cplusplus
+
+class _Jv_JavaVM
+{
+public:
+  const struct JNIInvokeInterface *functions;
+
+private:
+  /* FIXME: other fields.  */
+
+public:
+  jint DestroyJavaVM ()
+  { return functions->DestroyJavaVM (this); }
+
+  jint AttachCurrentThread (void **penv, void *args)
+  { return functions->AttachCurrentThread (this, penv, args); }
+
+  jint DetachCurrentThread ()
+  { return functions->DetachCurrentThread (this); }
+
+  jint GetEnv (void **penv, jint version)
+  { return functions->GetEnv (this, penv, version); }
+};
+#endif /* __cplusplus */
+
+typedef struct JavaVMAttachArgs
+{
+  jint version;			/* Must be JNI_VERSION_1_2.  */
+  char *name;			/* The name of the thread (or NULL).  */
+  jobject group;		/* Global ref of a ThreadGroup object
+				   (or NULL).  */
+} JavaVMAttachArgs;
+
+typedef struct JavaVMOption
+{
+  char *optionString;
+  void *extraInfo;
+} JavaVMOption;
+
+typedef struct JavaVMInitArgs
+{
+  /* Must be JNI_VERSION_1_2.  */
+  jint version;
+
+  /* Number of options.  */
+  jint nOptions;
+
+  /* Options to the VM.  */
+  JavaVMOption *options;
+
+  /* Whether we should ignore unrecognized options.  */
+  jboolean ignoreUnrecognized;
+} JavaVMInitArgs;
+
 #endif /* __GCJ_JNI_H__ */