1 /*
2 * Copyright (c) 2012, 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 {
35 private:
36 GrowableArray<char*>* _array;
37 public:
38 StringArrayArgument() {
39 _array = new(ResourceObj::C_HEAP)GrowableArray<char *>(32, true);
40 assert(_array != NULL, "Sanity check");
41 }
42 void add(const char* str, size_t len) {
43 if (str != NULL) {
44 char* ptr = NEW_C_HEAP_ARRAY(char, len+1);
45 strncpy(ptr, str, len);
46 ptr[len] = 0;
47 _array->append(ptr);
48 }
49 }
50 GrowableArray<char*>* array() {
51 return _array;
52 }
53 ~StringArrayArgument() {
54 for (int i=0; i<_array->length(); i++) {
55 if(_array->at(i) != NULL) { // Safety check
56 FREE_C_HEAP_ARRAY(char, _array->at(i));
57 }
58 }
59 delete _array;
60 }
61 };
62
63 class NanoTimeArgument {
64 public:
65 jlong _nanotime;
66 jlong _time;
67 char _unit[3];
68 };
69
70 class MemorySizeArgument {
71 public:
72 u8 _size;
73 u8 _val;
74 char _multiplier;
75 };
76
77 class GenDCmdArgument : public ResourceObj {
78 protected:
79 GenDCmdArgument* _next;
80 const char* _name;
81 const char* _description;
82 const char* _type;
83 const char* _default_string;
84 bool _is_set;
85 bool _is_mandatory;
86 bool _allow_multiple;
87 GenDCmdArgument(const char* name, const char* description, const char* type,
88 const char* default_string, bool mandatory) {
89 _name = name;
90 _description = description;
91 _type = type;
92 _default_string = default_string;
93 _is_mandatory = mandatory;
94 _is_set = false;
95 _allow_multiple = false;
96 };
97 public:
98 const char* name() { return _name; }
99 const char* description() { return _description; }
100 const char* type() { return _type; }
101 const char* default_string() { return _default_string; }
102 bool is_set() { return _is_set; }
103 void set_is_set(bool b) { _is_set = b; }
104 bool allow_multiple() { return _allow_multiple; }
105 bool is_mandatory() { return _is_mandatory; }
106 bool has_value() { return _is_set || _default_string != NULL; }
107 bool has_default() { return _default_string != NULL; }
108 void read_value(const char* str, size_t len, TRAPS);
109 virtual void parse_value(const char* str, size_t len, TRAPS) = 0;
110 virtual void init_value(TRAPS) = 0;
111 virtual void reset(TRAPS) = 0;
112 virtual void cleanup() = 0;
113 void set_next(GenDCmdArgument* arg) {
114 _next = arg;
115 }
116 GenDCmdArgument* next() {
117 return _next;
118 }
119 };
120
121 template <class ArgType> class DCmdArgument: public GenDCmdArgument {
122 private:
123 ArgType _value;
124 public:
125 DCmdArgument(const char* name, const char* description, const char* type,
126 bool mandatory) :
127 GenDCmdArgument(name, description, type, NULL, mandatory) { }
128 DCmdArgument(const char* name, const char* description, const char* type,
129 bool mandatory, const char* defaultvalue) :
130 GenDCmdArgument(name, description, type, defaultvalue, mandatory)
131 { }
132 ~DCmdArgument() { destroy_value(); }
133 ArgType value() { return _value;}
134 void set_value(ArgType v) { _value = v; }
135 void reset(TRAPS) {
136 destroy_value();
137 init_value(CHECK);
138 _is_set = false;
139 }
140 void cleanup() {
141 destroy_value();
142 }
143 void parse_value(const char* str, size_t len, TRAPS);
144 void init_value(TRAPS);
145 void destroy_value();
146 };
147
148 #endif /* SHARE_VM_SERVICES_DIAGNOSTICARGUMENT_HPP */