--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/services/diagnosticArgument.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2012, 2014, Oracle and/or its affiliates. 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.
+ *
+ * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP
+#define SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP
+
+#include "classfile/vmSymbols.hpp"
+#include "memory/allocation.hpp"
+#include "runtime/os.hpp"
+#include "runtime/thread.hpp"
+#include "utilities/exceptions.hpp"
+
+class StringArrayArgument : public CHeapObj<mtInternal> {
+private:
+  GrowableArray<char*>* _array;
+public:
+  StringArrayArgument() {
+    _array = new(ResourceObj::C_HEAP, mtInternal)GrowableArray<char *>(32, true);
+    assert(_array != NULL, "Sanity check");
+  }
+  void add(const char* str, size_t len) {
+    if (str != NULL) {
+      char* ptr = NEW_C_HEAP_ARRAY(char, len+1, mtInternal);
+      strncpy(ptr, str, len);
+      ptr[len] = 0;
+      _array->append(ptr);
+    }
+  }
+  GrowableArray<char*>* array() {
+    return _array;
+  }
+  ~StringArrayArgument() {
+    for (int i=0; i<_array->length(); i++) {
+      if(_array->at(i) != NULL) { // Safety check
+        FREE_C_HEAP_ARRAY(char, _array->at(i));
+      }
+    }
+    delete _array;
+  }
+};
+
+class NanoTimeArgument {
+public:
+  jlong _nanotime;
+  jlong _time;
+  char _unit[3];
+};
+
+class MemorySizeArgument {
+public:
+  u8 _size;
+  u8 _val;
+  char _multiplier;
+};
+
+class GenDCmdArgument : public ResourceObj {
+protected:
+  GenDCmdArgument* _next;
+  const char*      _name;
+  const char*      _description;
+  const char*      _type;
+  const char*      _default_string;
+  bool             _is_set;
+  bool             _is_mandatory;
+  bool             _allow_multiple;
+  GenDCmdArgument(const char* name, const char* description, const char* type,
+                  const char* default_string, bool mandatory) {
+    _name = name;
+    _description = description;
+    _type = type;
+    _default_string = default_string;
+    _is_mandatory = mandatory;
+    _is_set = false;
+    _allow_multiple = false;
+  };
+public:
+  const char* name() { return _name; }
+  const char* description() { return _description; }
+  const char* type() { return _type; }
+  const char* default_string() { return _default_string; }
+  bool is_set() { return _is_set; }
+  void set_is_set(bool b) { _is_set = b; }
+  bool allow_multiple() { return _allow_multiple; }
+  bool is_mandatory() { return _is_mandatory; }
+  bool has_value() { return _is_set || _default_string != NULL; }
+  bool has_default() { return _default_string != NULL; }
+  void read_value(const char* str, size_t len, TRAPS);
+  virtual void parse_value(const char* str, size_t len, TRAPS) = 0;
+  virtual void init_value(TRAPS) = 0;
+  virtual void reset(TRAPS) = 0;
+  virtual void cleanup() = 0;
+  virtual void value_as_str(char* buf, size_t len) = 0;
+  void set_next(GenDCmdArgument* arg) {
+    _next = arg;
+  }
+  GenDCmdArgument* next() {
+    return _next;
+  }
+
+  void to_string(jlong l, char* buf, size_t len);
+  void to_string(bool b, char* buf, size_t len);
+  void to_string(char* c, char* buf, size_t len);
+  void to_string(NanoTimeArgument n, char* buf, size_t len);
+  void to_string(MemorySizeArgument f, char* buf, size_t len);
+  void to_string(StringArrayArgument* s, char* buf, size_t len);
+};
+
+template <class ArgType> class DCmdArgument: public GenDCmdArgument {
+private:
+  ArgType _value;
+public:
+  DCmdArgument(const char* name, const char* description, const char* type,
+               bool mandatory) :
+               GenDCmdArgument(name, description, type, NULL, mandatory) { }
+  DCmdArgument(const char* name, const char* description, const char* type,
+               bool mandatory, const char* defaultvalue) :
+               GenDCmdArgument(name, description, type, defaultvalue, mandatory)
+               { }
+  ~DCmdArgument() { destroy_value(); }
+  ArgType value() { return _value;}
+  void set_value(ArgType v) { _value = v; }
+  void reset(TRAPS) {
+    destroy_value();
+    init_value(CHECK);
+    _is_set = false;
+  }
+  void cleanup() {
+    destroy_value();
+  }
+  void parse_value(const char* str, size_t len, TRAPS);
+  void init_value(TRAPS);
+  void destroy_value();
+  void value_as_str(char *buf, size_t len) { return to_string(_value, buf, len);}
+};
+
+#endif  /* SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP */