--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/back/stepControl.h	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,70 @@
+/*
+ * Copyright 1998-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+#ifndef JDWP_STEPCONTROL_H
+#define JDWP_STEPCONTROL_H
+
+#include "eventFilter.h"
+#include "eventHandler.h"
+
+typedef struct {
+    /* Parameters */
+    jint granularity;
+    jint depth;
+
+    /* State */
+    jboolean pending;
+    jboolean frameExited;    /* for depth == STEP_OVER or STEP_OUT */
+    jboolean fromNative;
+    jint fromStackDepth;     /* for all but STEP_INTO STEP_INSTRUCTION */
+    jint fromLine;           /* for granularity == STEP_LINE */
+    jmethodID method;   /* Where line table came from. */
+    jvmtiLineNumberEntry *lineEntries;       /* STEP_LINE */
+    jint lineEntryCount;     /* for granularity == STEP_LINE */
+
+    HandlerNode *stepHandlerNode;
+    HandlerNode *catchHandlerNode;
+    HandlerNode *framePopHandlerNode;
+    HandlerNode *methodEnterHandlerNode;
+} StepRequest;
+
+
+void stepControl_initialize(void);
+void stepControl_reset(void);
+
+jboolean stepControl_handleStep(JNIEnv *env, jthread thread,
+                                jclass clazz, jmethodID method);
+
+jvmtiError stepControl_beginStep(JNIEnv *env, jthread thread,
+                                jint size, jint depth, HandlerNode *node);
+jvmtiError stepControl_endStep(jthread thread);
+
+void stepControl_clearRequest(jthread thread, StepRequest *step);
+void stepControl_resetRequest(jthread thread);
+
+void stepControl_lock(void);
+void stepControl_unlock(void);
+
+#endif