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 operator bool (void) const;
58 operator signed long long (void) const;
59 operator unsigned long long (void) const;
60 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 void *blob(void) const;
109 void visit(Visitor &visitor);
115 class Bool : public Value
118 Bool(bool _value) : value(_value) {}
120 void visit(Visitor &visitor);
126 class SInt : public Value
129 SInt(signed long long _value) : value(_value) {}
131 void visit(Visitor &visitor);
133 signed long long value;
137 class UInt : public Value
140 UInt(unsigned long long _value) : value(_value) {}
142 void visit(Visitor &visitor);
144 unsigned long long value;
148 class Float : public Value
151 Float(double _value) : value(_value) {}
153 void visit(Visitor &visitor);
159 class String : public Value
162 String(std::string _value) : value(_value) {}
164 void visit(Visitor &visitor);
170 class Enum : public Value
173 typedef std::pair<std::string, Value *> Signature;
175 Enum(const Signature *_sig) : sig(_sig) {}
177 void visit(Visitor &visitor);
179 const Signature *sig;
183 class Bitmask : public UInt
186 typedef std::pair<std::string, unsigned long long> Pair;
187 typedef std::vector<Pair> Signature;
189 Bitmask(const Signature *_sig, unsigned long long _value) : UInt(_value), sig(_sig) {}
191 void visit(Visitor &visitor);
193 const Signature *sig;
197 class Struct : public Value
202 std::vector<std::string> member_names;
205 Struct(Signature *_sig) : sig(_sig), members(_sig->member_names.size()) { }
208 void visit(Visitor &visitor);
210 const Signature *sig;
211 std::vector<Value *> members;
215 class Array : public Value
218 Array(size_t len) : values(len) {}
221 void visit(Visitor &visitor);
223 std::vector<Value *> values;
227 class Blob : public Value
232 buf = new char[_size];
237 void *blob(void) const;
238 void visit(Visitor &visitor);
245 class Pointer : public UInt
248 Pointer(unsigned long long value) : UInt(value) {}
250 void *blob(void) const;
251 void visit(Visitor &visitor);
258 virtual void visit(Null *);
259 virtual void visit(Bool *);
260 virtual void visit(SInt *);
261 virtual void visit(UInt *);
262 virtual void visit(Float *);
263 virtual void visit(String *);
264 virtual void visit(Enum *);
265 virtual void visit(Bitmask *);
266 virtual void visit(Struct *);
267 virtual void visit(Array *);
268 virtual void visit(Blob *);
269 virtual void visit(Pointer *);
272 inline void _visit(Value *value) {
280 std::ostream & operator <<(std::ostream &os, Value *value);
283 signed long long asSInt(const Value &node);
284 unsigned long long asUInt(const Value &node);
285 double asFloat(const Value &node);
293 std::vector<std::string> arg_names;
297 const Signature *sig;
298 std::vector<Value *> args;
301 Call(Signature *_sig) : sig(_sig), args(_sig->arg_names.size()), ret(0) { }
304 inline const std::string name(void) const {
308 inline Value & arg(unsigned index) {
309 return *(args[index]);
314 std::ostream & operator <<(std::ostream &os, Call &call);
317 } /* namespace Trace */
319 #endif /* _TRACE_MODEL_HPP_ */