trace_parser.hpp

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 *
 * Copyright 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
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 * furnished to do so, subject to the following conditions:
 *
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 * all copies or substantial portions of the Software.
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#ifndef _TRACE_PARSER_HPP_
#define _TRACE_PARSER_HPP_


#include <iostream>
#include <list>
#include <set>

#include "trace_file.hpp"
#include "trace_format.hpp"
#include "trace_model.hpp"


namespace Trace {

class Parser
{
protected:
    File *file;

    typedef std::list<Call *> CallList;
    CallList calls;

    typedef std::vector<FunctionSig *> FunctionMap;
    FunctionMap functions;

    typedef std::vector<StructSig *> StructMap;
    StructMap structs;

    typedef std::vector<EnumSig *> EnumMap;
    EnumMap enums;

    typedef std::vector<BitmaskSig *> BitmaskMap;
    BitmaskMap bitmasks;

    typedef std::set<File::Offset> TraceOffsets;
    TraceOffsets m_callSigOffsets;
    TraceOffsets m_structSigOffsets;
    TraceOffsets m_enumSigOffsets;
    TraceOffsets m_bitmaskSigOffsets;

    typedef std::map<File::Offset, unsigned> CallNumOffsets;
    CallNumOffsets m_callNumOffsets;

    unsigned next_call_no;

public:
    unsigned long long version;

    Parser();

    ~Parser();

    bool open(const char *filename);

    void close(void);

    Call *parse_call(void);

    bool supportsOffsets() const
    {
        return file->supportsOffsets();
    }

    File::Offset currentOffset()
    {
        return file->currentOffset();
    }

    void setCurrentOffset(const File::Offset &offset)
    {
        file->setCurrentOffset(offset);
    }

    bool callWithSignature(const File::Offset &offset) const;
    bool structWithSignature(const File::Offset &offset) const;
    bool enumWithSignature(const File::Offset &offset) const;
    bool bitmaskWithSignature(const File::Offset &offset) const;

    unsigned currentCallNumber() const
    {
        return next_call_no;
    }

    void setCurrentCallNumber(unsigned num)
    {
        next_call_no = num;
    }

protected:
    void parse_enter(void);

    Call *parse_leave(void);

    bool parse_call_details(Call *call);

    void parse_arg(Call *call);

    Value *parse_value(void);

    Value *parse_sint();

    Value *parse_uint();

    Value *parse_float();

    Value *parse_double();

    Value *parse_string();

    Value *parse_enum();

    Value *parse_bitmask();

    Value *parse_array(void);

    Value *parse_blob(void);

    Value *parse_struct();

    Value *parse_opaque();

    const char * read_string(void);

    unsigned long long read_uint(void);

    inline int read_byte(void);
};


} /* namespace Trace */

#endif /* _TRACE_PARSER_HPP_ */