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/**************************************************************************
*
* Copyright 2007-2010 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
**************************************************************************/
/*
* Trace writing functions.
*/
#ifndef _TRACE_WRITER_HPP_
#define _TRACE_WRITER_HPP_
#include <stddef.h>
#include <vector>
#include "trace_model.hpp"
namespace Trace {
class File;
class Writer {
protected:
File *m_file;
unsigned call_no;
std::vector<bool> functions;
std::vector<bool> structs;
std::vector<bool> enums;
std::vector<bool> bitmasks;
public:
Writer();
~Writer();
bool open(const char *filename);
void close(void);
unsigned beginEnter(const FunctionSig *sig);
void endEnter(void);
void beginLeave(unsigned call);
void endLeave(void);
void beginArg(unsigned index);
inline void endArg(void) {}
void beginReturn(void);
inline void endReturn(void) {}
void beginArray(size_t length);
inline void endArray(void) {}
inline void beginElement(void) {}
inline void endElement(void) {}
void beginStruct(const StructSig *sig);
inline void endStruct(void) {}
void writeBool(bool value);
void writeSInt(signed long long value);
void writeUInt(unsigned long long value);
void writeFloat(float value);
void writeDouble(double value);
void writeString(const char *str);
void writeString(const char *str, size_t size);
void writeWString(const wchar_t *str);
void writeBlob(const void *data, size_t size);
void writeEnum(const EnumSig *sig);
void writeBitmask(const BitmaskSig *sig, unsigned long long value);
void writeNull(void);
void writeOpaque(const void *ptr);
void writeCall(Call *call);
protected:
void inline _write(const void *sBuffer, size_t dwBytesToWrite);
void inline _writeByte(char c);
void inline _writeUInt(unsigned long long value);
void inline _writeFloat(float value);
void inline _writeDouble(double value);
void inline _writeString(const char *str);
};
/**
* A specialized Writer class, mean to trace the current process.
*
* In particular:
* - it creates a trace file based on the current process name
* - uses mutexes to allow tracing from multiple threades
* - flushes the output to ensure the last call is traced in event of
* abnormal termination
*/
class LocalWriter : public Writer {
protected:
int acquired;
public:
/**
* Should never called directly -- use localWriter singleton below instead.
*/
LocalWriter();
~LocalWriter();
void open(void);
unsigned beginEnter(const FunctionSig *sig);
void endEnter(void);
void beginLeave(unsigned call);
void endLeave(void);
void flush(void);
};
/**
* Singleton.
*/
extern LocalWriter localWriter;
}
#endif /* _TRACE_WRITER_HPP_ */
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