rev 50556 : [mq]: jcmd-cleanups

   1 /*
   2  * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP
  26 #define SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP
  27 
  28 #include "classfile/vmSymbols.hpp"
  29 #include "memory/allocation.hpp"
  30 #include "runtime/os.hpp"
  31 #include "runtime/thread.hpp"
  32 #include "utilities/exceptions.hpp"
  33 
  34 class StringArrayArgument : public CHeapObj<mtInternal> {
  35 private:
  36   GrowableArray<char*>* _array;
  37 public:
  38   StringArrayArgument();
  39   ~StringArrayArgument();
  40 
  41   void add(const char* str, size_t len);
  42 
  43   GrowableArray<char*>* array() {
  44     return _array;
  45   }
  46 };
  47 
  48 class NanoTimeArgument {
  49 public:
  50   jlong _nanotime;
  51   jlong _time;
  52   char _unit[3];
  53 };
  54 
  55 class MemorySizeArgument {
  56 public:
  57   u8 _size;
  58   u8 _val;
  59   char _multiplier;
  60 };
  61 
  62 class GenDCmdArgument : public ResourceObj {
  63 protected:
  64   GenDCmdArgument* _next;
  65   const char*      _name;
  66   const char*      _description;
  67   const char*      _type;
  68   const char*      _default_string;
  69   bool             _is_set;
  70   bool             _is_mandatory;
  71   bool             _allow_multiple;
  72   GenDCmdArgument(const char* name, const char* description, const char* type,
  73                   const char* default_string, bool mandatory) {
  74     _name = name;
  75     _description = description;
  76     _type = type;
  77     _default_string = default_string;
  78     _is_mandatory = mandatory;
  79     _is_set = false;
  80     _allow_multiple = false;
  81   };

  82 public:
  83   const char* name() { return _name; }
  84   const char* description() { return _description; }
  85   const char* type() { return _type; }
  86   const char* default_string() { return _default_string; }
  87   bool is_set() { return _is_set; }
  88   void set_is_set(bool b) { _is_set = b; }
  89   bool allow_multiple() { return _allow_multiple; }
  90   bool is_mandatory() { return _is_mandatory; }
  91   bool has_value() { return _is_set || _default_string != NULL; }
  92   bool has_default() { return _default_string != NULL; }
  93   void read_value(const char* str, size_t len, TRAPS);
  94   virtual void parse_value(const char* str, size_t len, TRAPS) = 0;
  95   virtual void init_value(TRAPS) = 0;
  96   virtual void reset(TRAPS) = 0;
  97   virtual void cleanup() = 0;
  98   virtual void value_as_str(char* buf, size_t len) = 0;
  99   void set_next(GenDCmdArgument* arg) {
 100     _next = arg;
 101   }
 102   GenDCmdArgument* next() {
 103     return _next;
 104   }
 105 
 106   void to_string(jlong l, char* buf, size_t len);
 107   void to_string(bool b, char* buf, size_t len);
 108   void to_string(char* c, char* buf, size_t len);
 109   void to_string(NanoTimeArgument n, char* buf, size_t len);
 110   void to_string(MemorySizeArgument f, char* buf, size_t len);
 111   void to_string(StringArrayArgument* s, char* buf, size_t len);
 112 };
 113 
 114 template <class ArgType> class DCmdArgument: public GenDCmdArgument {
 115 private:
 116   ArgType _value;
 117 public:
 118   DCmdArgument(const char* name, const char* description, const char* type,
 119                bool mandatory) :
 120                GenDCmdArgument(name, description, type, NULL, mandatory) { }
 121   DCmdArgument(const char* name, const char* description, const char* type,
 122                bool mandatory, const char* defaultvalue) :
 123                GenDCmdArgument(name, description, type, defaultvalue, mandatory)
 124                { }
 125   ~DCmdArgument() { destroy_value(); }
 126   ArgType value() { return _value;}
 127   void set_value(ArgType v) { _value = v; }
 128   void reset(TRAPS) {
 129     destroy_value();
 130     init_value(CHECK);
 131     _is_set = false;
 132   }
 133   void cleanup() {
 134     destroy_value();
 135   }
 136   void parse_value(const char* str, size_t len, TRAPS);
 137   void init_value(TRAPS);
 138   void destroy_value();
 139   void value_as_str(char *buf, size_t len) { return to_string(_value, buf, len);}
 140 };
 141 
 142 #endif  /* SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP */
--- EOF ---