1 /**************************************************************************
3 * Copyright 2010 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 **************************************************************************/
27 * Object hierarchy for describing the traces in memory.
30 #ifndef _TRACE_MODEL_HPP_
31 #define _TRACE_MODEL_HPP_
55 virtual void visit(Visitor &visitor) = 0;
57 virtual operator bool (void) const = 0;
58 virtual operator signed long long (void) const;
59 virtual operator unsigned long long (void) const;
60 virtual operator double (void) const;
62 virtual void *blob(void) const;
63 const char *string(void) const;
65 inline operator signed char (void) const {
66 return static_cast<signed long long>(*this);
69 inline operator unsigned char (void) const {
70 return static_cast<signed long long>(*this);
73 inline operator signed short (void) const {
74 return static_cast<signed long long>(*this);
77 inline operator unsigned short (void) const {
78 return static_cast<unsigned long long>(*this);
81 inline operator signed (void) const {
82 return static_cast<signed long long>(*this);
85 inline operator unsigned (void) const {
86 return static_cast<unsigned long long>(*this);
89 inline operator signed long (void) const {
90 return static_cast<signed long long>(*this);
93 inline operator unsigned long (void) const {
94 return static_cast<unsigned long long>(*this);
97 inline operator float (void) const {
98 return static_cast<double>(*this);
101 const Value & operator[](size_t index) const;
105 class Null : public Value
108 operator bool (void) const;
109 operator signed long long (void) const;
110 operator unsigned long long (void) const;
111 operator double (void) const;
112 void *blob(void) const;
113 void visit(Visitor &visitor);
117 class Bool : public Value
120 Bool(bool _value) : value(_value) {}
122 operator bool (void) const;
123 operator signed long long (void) const;
124 operator unsigned long long (void) const;
125 operator double (void) const;
126 void visit(Visitor &visitor);
132 class SInt : public Value
135 SInt(signed long long _value) : value(_value) {}
137 operator bool (void) const;
138 operator signed long long (void) const;
139 operator unsigned long long (void) const;
140 operator double (void) const;
141 void visit(Visitor &visitor);
143 signed long long value;
147 class UInt : public Value
150 UInt(unsigned long long _value) : value(_value) {}
152 operator bool (void) const;
153 operator signed long long (void) const;
154 operator unsigned long long (void) const;
155 operator double (void) const;
156 void visit(Visitor &visitor);
158 unsigned long long value;
162 class Float : public Value
165 Float(double _value) : value(_value) {}
167 operator bool (void) const;
168 operator signed long long (void) const;
169 operator unsigned long long (void) const;
170 operator double (void) const;
171 void visit(Visitor &visitor);
177 class String : public Value
180 String(std::string _value) : value(_value) {}
182 operator bool (void) const;
183 void visit(Visitor &visitor);
189 class Enum : public Value
192 struct Signature : public std::pair<std::string, Value *>
195 : std::pair<std::string, Value *>()
197 Signature(const std::string &n, Trace::Value *val)
198 : std::pair<std::string, Value *>(n, val)
206 Enum(const Signature *_sig) : sig(_sig) {}
208 operator bool (void) const;
209 operator signed long long (void) const;
210 operator unsigned long long (void) const;
211 operator double (void) const;
212 void visit(Visitor &visitor);
214 const Signature *sig;
218 class Bitmask : public UInt
221 typedef std::pair<std::string, unsigned long long> Pair;
222 typedef std::vector<Pair> Signature;
224 Bitmask(const Signature *_sig, unsigned long long _value) : UInt(_value), sig(_sig) {}
226 void visit(Visitor &visitor);
228 const Signature *sig;
232 class Struct : public Value
237 std::vector<std::string> member_names;
240 Struct(Signature *_sig) : sig(_sig), members(_sig->member_names.size()) { }
243 operator bool (void) const;
244 void visit(Visitor &visitor);
246 const Signature *sig;
247 std::vector<Value *> members;
251 class Array : public Value
254 Array(size_t len) : values(len) {}
257 operator bool (void) const;
258 void visit(Visitor &visitor);
260 std::vector<Value *> values;
264 class Blob : public Value
269 buf = new char[_size];
274 operator bool (void) const;
275 void *blob(void) const;
276 void visit(Visitor &visitor);
283 class Pointer : public UInt
286 Pointer(unsigned long long value) : UInt(value) {}
288 operator bool (void) const;
289 void *blob(void) const;
290 void visit(Visitor &visitor);
297 virtual void visit(Null *);
298 virtual void visit(Bool *);
299 virtual void visit(SInt *);
300 virtual void visit(UInt *);
301 virtual void visit(Float *);
302 virtual void visit(String *);
303 virtual void visit(Enum *);
304 virtual void visit(Bitmask *);
305 virtual void visit(Struct *);
306 virtual void visit(Array *);
307 virtual void visit(Blob *);
308 virtual void visit(Pointer *);
311 inline void _visit(Value *value) {
319 std::ostream & operator <<(std::ostream &os, Value *value);
322 signed long long asSInt(const Value &node);
323 unsigned long long asUInt(const Value &node);
324 double asFloat(const Value &node);
332 std::vector<std::string> arg_names;
336 const Signature *sig;
337 std::vector<Value *> args;
340 Call(Signature *_sig) : sig(_sig), args(_sig->arg_names.size()), ret(0) { }
343 inline const std::string & name(void) const {
347 inline Value & arg(unsigned index) {
348 return *(args[index]);
353 std::ostream & operator <<(std::ostream &os, Call &call);
356 } /* namespace Trace */
358 #endif /* _TRACE_MODEL_HPP_ */