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* const _name;
66 const char* const _description;
67 const char* const _type;
68 const char* const _default_string;
69 bool _is_set;
70 const 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 : _next(NULL)
75 , _name(name), _description(description), _type(type)
76 , _default_string(default_string), _is_mandatory(mandatory)
77 , _is_set(false), _allow_multiple(false) {}
78
79 public:
80 const char* name() const { return _name; }
81 const char* description() const { return _description; }
82 const char* type() const { return _type; }
83 const char* default_string() const { return _default_string; }
84 bool is_set() const { return _is_set; }
85 void set_is_set(bool b) { _is_set = b; }
86 bool allow_multiple() const { return _allow_multiple; }
87 bool is_mandatory() const { return _is_mandatory; }
88 bool has_value() const { return _is_set || _default_string != NULL; }
89 bool has_default() const { return _default_string != NULL; }
90 void read_value(const char* str, size_t len, TRAPS);
91 virtual void parse_value(const char* str, size_t len, TRAPS) = 0;
92 virtual void init_value(TRAPS) = 0;
93 virtual void reset(TRAPS) = 0;
94 virtual void cleanup() = 0;
95 virtual void value_as_str(char* buf, size_t len) const = 0;
96 void set_next(GenDCmdArgument* arg) {
97 _next = arg;
98 }
99 GenDCmdArgument* next() {
100 return _next;
101 }
102
103 void to_string(jlong l, char* buf, size_t len) const;
104 void to_string(bool b, char* buf, size_t len) const;
105 void to_string(char* c, char* buf, size_t len) const;
106 void to_string(NanoTimeArgument n, char* buf, size_t len) const;
107 void to_string(MemorySizeArgument f, char* buf, size_t len) const;
108 void to_string(StringArrayArgument* s, char* buf, size_t len) const;
109 };
110
111 template <class ArgType> class DCmdArgument: public GenDCmdArgument {
112 private:
113 ArgType _value;
114 public:
115 DCmdArgument(const char* name, const char* description, const char* type,
116 bool mandatory) :
117 GenDCmdArgument(name, description, type, NULL, mandatory) { }
118 DCmdArgument(const char* name, const char* description, const char* type,
119 bool mandatory, const char* defaultvalue) :
120 GenDCmdArgument(name, description, type, defaultvalue, mandatory)
121 { }
122 ~DCmdArgument() { destroy_value(); }
123 ArgType value() const { return _value;}
124 void set_value(ArgType v) { _value = v; }
125 void reset(TRAPS) {
126 destroy_value();
127 init_value(CHECK);
128 _is_set = false;
129 }
130 void cleanup() {
131 destroy_value();
132 }
133 void parse_value(const char* str, size_t len, TRAPS);
134 void init_value(TRAPS);
135 void destroy_value();
136 void value_as_str(char *buf, size_t len) const { to_string(_value, buf, len);}
137 };
138
139 #endif /* SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP */