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/* The copyright in this software is being made available under the BSD
* License, included below. This software may be subject to other third party
* and contributor rights, including patent rights, and no such rights are
* granted under this license.
*
* Copyright (c) 2010-2018, ITU/ISO/IEC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/** \file dtrace.h
* \brief Implementation of trace messages support for debugging
*/
#ifndef _DTRACE_H_
#define _DTRACE_H_
#include <stdio.h>
#include <string>
#include <list>
#include <map>
#include <set>
#include <vector>
#include <cstdarg>
class CDTrace;
typedef std::string CType;
struct dtrace_channel
{
int channel_number;
std::string channel_name;
};
typedef std::vector< dtrace_channel > dtrace_channels_t;
class Condition
{
public:
CType type;
bool ( *eval )( int, int );
int rval;
Condition( CType t, bool ( *efunc )( int,int ), int refval )
: type(t), eval(efunc), rval(refval)
{}
};
class Channel
{
typedef std::vector<Condition> Rule;
public:
Channel() : rule_list(), _active(false), _counter(0) {}
void update( std::map< CType, int > state );
bool active() { return _active; }
void add( Rule rule );
void incrementCounter() { _counter++; }
void decrementCounter() { _counter-- ; }
int64_t getCounter() { return _counter; }
private:
std::list< Rule > rule_list;
bool _active;
int64_t _counter;
};
class CDTrace
{
typedef std::pair< CType, int > state_type;
//friend class Rules;
private:
bool copy;
FILE *m_trace_file;
int m_error_code;
typedef std::string Key;
typedef std::vector<std::string> vstring;
typedef std::map< Key, int > channel_map_t;
std::vector< Channel > chanRules;
std::set< CType > condition_types;
std::map< CType, int > state;
std::map< Key, int > deserializationTable;
public:
CDTrace() : copy(false), m_trace_file(NULL) {}
CDTrace( const char *filename, vstring channel_names );
CDTrace( const char *filename, const dtrace_channels_t& channels );
CDTrace( const std::string& sTracingFile, const std::string& sTracingRule, const dtrace_channels_t& channels );
CDTrace( const CDTrace& other );
CDTrace& operator=( const CDTrace& other );
~CDTrace();
void swap ( CDTrace& other );
int addRule ( std::string rulestring );
template<bool bCount>
void dtrace ( int, const char *format, /*va_list args*/... );
void dtrace_repeat( int, int i_times, const char *format, /*va_list args*/... );
bool update ( state_type stateval );
int init( vstring channel_names );
int getLastError() { return m_error_code; }
const char* getChannelName( int channel_number );
void getChannelsList( std::string& sChannels );
std::string getErrMessage();
int64_t getChannelCounter( int channel ) { return chanRules[channel].getCounter(); }
void decrementChannelCounter( int channel ) { chanRules[channel].decrementCounter(); }
};
#endif // _DTRACE_H_