DebStream.cc 21.5 KB
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// (C) Copyright 2014 by Autodesk, Inc.
//
// The information contained herein is confidential, proprietary
// to Autodesk,  Inc.,  and considered a trade secret as defined
// in section 499C of the penal code of the State of California.
// Use of  this information  by  anyone  other  than  authorized
// employees of Autodesk, Inc.  is granted  only under a written
// non-disclosure agreement,  expressly  prescribing  the  scope
// and manner of such use.

#include "DebOut.hh"
#include <string>
#include <fstream>
#include <time.h>
#include <vector>
#include <iostream>
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#include <map>
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#ifdef DEB_ON
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#define LOCAL_PROC static

LOCAL_PROC bool is_html_filename(const char * const str)  
{
  const char * dot = strchr(str, '.');
  if (dot == nullptr) return false;
  ++dot;
  return ( !strncmp(dot, "htm", 3) ) || ( !strncmp(dot,"HTM",3) ) ;
}

namespace ReForm
{
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  class FunctionCallSequence
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  {
    std::string func_name_;
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    std::vector<DebEnter *> debs_; // These may not have sequential counts when multithreaded.
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  public:
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    FunctionCallSequence(const char * _func_name, DebEnter * _deb) 
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      : func_name_(_func_name)
    {
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      debs_.push_back(_deb);
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    }
    ~FunctionCallSequence() {}

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    bool add(const char * _func_name, DebEnter * _deb)
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    {
      if (func_name_ == _func_name)
      {
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        debs_.push_back(_deb);
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        return true;
      }
      return false;
    }

    bool pop()
    {
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      if (debs_.size() > 1 )
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      {
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        debs_.pop_back();
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        return true;
      }
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      debs_.clear();
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      return false;
    }

    int number_calls() const 
    {
      if (!this) return 0;
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      return (int)debs_.size();
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    }

    int count(int i=0) const
    { 
      int num = number_calls();
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      if (i < num) return debs_[num -1 - i]->count_;
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      return -1;
    }

    const char * name() const { return func_name_.c_str();}

    // Replace interior of < > in function name with . for brevity
    void compact_name(std::string & str) const
    {
      int cnt=0;
      const char * ptr = func_name_.c_str();
      while (ptr && (*ptr != '\0'))
      {
        char c = *ptr;
        if (c=='>') --cnt;
        if (cnt==0) str.append(1, c);
        if (c=='<') 
        {
          if (cnt==0) str.append(".");
          ++cnt;
        }
        ++ptr;
      }
    }

    // Get single call stack element string
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    void get(std::string& _str, const bool _strip_angled, bool _with_counts) const
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    {
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      if (_strip_angled) compact_name(_str);
      else _str.append(name());
      _str.append("[");
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      if (_with_counts)
      {

        int num = number_calls();
        int prev = -2;
        int seq_cnt =0;
        for (int i=0; i < num; ++i)
        {
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          int cnt = debs_[i]->count_;
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          if (cnt != prev + 1)
          {
            char buffer[64];

            if (seq_cnt > 0)
            {
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              _str.append("-");
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              sprintf_s(buffer, sizeof(buffer), "%i", prev);
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              _str.append(buffer);
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            }
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            if (i>0) _str.append(",");
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            sprintf_s(buffer, sizeof(buffer), "%i", cnt);
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            _str.append(buffer);
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            seq_cnt=0;
          }
          else
            ++seq_cnt;
          prev = cnt;
        } // endfor i
      } // endif _with_counts
      else
      {
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        _str.append("*");
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      }
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      _str.append("]");
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    } // endfunc get

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    void indent(std::string & _str, DebFile * _dfile, bool _is_html);

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  }; // endclass FunctionCallSequence


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  class CallStack
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  {
    std::vector<FunctionCallSequence> calls_;
    int depth_;
  public:
    CallStack() : depth_(0) {}
    ~CallStack() {}

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    void add(const char * _func_name, DebEnter * _deb)
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    {
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      if (calls_.empty() || !calls_.back().add(_func_name, _deb))
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      {
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        calls_.push_back( FunctionCallSequence(_func_name, _deb) );
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      }
      ++depth_;
    }

    void pop()
    {
      if (!calls_.back().pop())
        calls_.pop_back();
      --depth_;
    }

    const FunctionCallSequence * call( int _up =0)
    {
      int num = (int)calls_.size();
      if (_up < num) return &calls_[num - 1 - _up];
      return nullptr;
    }

    // Read a particular call stack element
    bool read(int _up, const char*& _funcname, int & _count)
    {
      const FunctionCallSequence * fcs = call(_up);
      if (fcs != nullptr)
      {
        _funcname = fcs->name();
        _count = fcs->count(0); // Return most recent deb_enter_count
        return true;
      }
      return false;
    }

    // Get a full call stack sting.
    // returns number of call stack function elements 
    int get(std::string& _str, bool _with_counts = true) const
    {
      int num = (int)calls_.size();
      for (int i =0; i< num; ++i)
      {
        if (i>0) _str.append("->");
        calls_[i].get(_str, true, _with_counts);
      }
      return num;
    }

    int depth() const { return depth_; }

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    bool indent(std::string& _str, DebFile * _dfile, const bool is_html);
}; // endclass CallStack
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class DebFile
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{
private:
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  class module_stats
  {
  public:
    int lev_; // Level set for this module
    int col_; // Colour (24 bit RGB, MSB=Red) for this module's DEB_out
    module_stats(int _lev=0) : lev_(_lev), col_(0x808080) {}
    ~module_stats() {}
  };

  std::map<std::string, module_stats> module_map_;
  typedef std::map<std::string, module_stats>::iterator module_map_itr;
  typedef std::map<std::string, module_stats>::const_iterator const_module_map_itr;
  
  DebStream::StreamType type_;
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  int lev_;
  int num_flush_;
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  int priority_; // Last permission granted
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  int indent_size_;
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  bool at_line_start_;

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  std::string current_;
  std::string output_;
  std::string file_name_;
  std::fstream file_stream_;
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  //std::string indent_string_;
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  DebStream * deb_stream_;
  CallStack call_stack_;

public:

  CallStack& call_stack() { return call_stack_;}

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  bool is_kept_open() const  { return 0 != (type_ & DebStream::StreamType::keep_open); }
  bool is_html() const  { return 0 != (type_ & DebStream::StreamType::html); }
  bool is_retained() const  { return 0 != (type_ & DebStream::StreamType::retain); }
  bool is_appended() const  { return 0 != (type_ & DebStream::StreamType::append); }
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  // Only applies to HTML DEB_out
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  bool is_white_on_black() const { return true; }
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  int indent_size() { return indent_size_; }
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  bool file_is_open() const { return file_stream_.is_open(); }
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  int priority() const { return priority_; }
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  bool fork_to_cout() { return false; }
  bool fork_to_cerr() { return true; }


  const char * file_name() const
  {
   if ( this && (!file_name_.empty()) ) return file_name_.c_str();
    return nullptr;
  }
  
  void clear()
  {
    current_.clear();
    output_.clear();
    file_name_.clear();
  }
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  char prev_char() const
  {
    if (!current_.empty()) return current_.back();
    if (!output_.empty()) return output_.back();
    return '\0';
  }

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  void indent(bool _full_text)
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  {
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    std::string str;
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    if (call_stack().indent(str, this,  _full_text && is_html()))
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      current_.append(str);
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  }

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  void line_break(bool _with_indent = false)
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  {
    if ( is_html() ) current_.append("<br>"); // Don't bother with matching </br>
    current_.append("\n", 1);

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    if (_with_indent) indent(false);
    else at_line_start_ = true;
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  }
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  void set_level(int _lev) { lev_ = _lev; }

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  void print_direct(const std::string & _s)
  {
    current_.append(_s);
  }


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  void print(const char _c)
  {
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    if (_c == '\n') 
    {
      line_break();
      return;
    }

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    if (at_line_start_)
    {
      indent( true);
      at_line_start_ = false;
    }


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    if ( is_html() )
    { // translate the esoteric characters used in IGM DEB_out


      if( _c == '')  // -62 
      {
        return;
      }

      if (_c == '') // 167 = -89
      {
        current_.append("&sect;");
        return;
      }

      if (_c == '') // -80
      {
        current_.append("&deg;");
        return;
      }
    }
    current_.append(&_c, 1);
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  }

  void print(const char * const _s, bool _fork = true)
  {
    if (_s != nullptr)
    {
      for (int i=0; ;++i)
      {
        const char c = _s[i];
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        if (c=='\0') break;
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        print(c);
      }
      if (_fork)
      {
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        if (fork_to_cout())
          std::cout << _s;
        if (fork_to_cerr())
          std::cerr << _s;
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      }
    } 
  }

  void print(int _i)
  {
    char buffer[64];
    sprintf_s(buffer, sizeof(buffer), "%i", _i);
    print(buffer);
  }
  
  void print(double _d)
  {
    char buffer[64];
    sprintf_s(buffer, sizeof(buffer), "%.17g", _d);
    print(buffer);
  }

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  void print(const DebCommand& _co)
  {
    switch(_co.com()) {
    case DebCommand::end : 
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      if (is_html()) print_direct("</FONT>");
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      break;
    case DebCommand::end_lf :
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      if (is_html()) print_direct("</FONT>");
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      line_break();
      break;
    }
  }

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  DebStream & stream() { return *deb_stream_; }
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  // Append current asctime to given string 
  bool add_time(std::string & str)
  {
    time_t rawtime;
    time ( &rawtime );
    struct tm timeinfo;
    errno_t err = localtime_s( &timeinfo, &rawtime );
    if (err == 0)
    {
      char buffer[256];
      err = asctime_s(buffer, sizeof(buffer), &timeinfo);
      if (err == 0)
      {
        str.append( buffer );
        return true;
      }
    }
    return false;
  }

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#if 1
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  bool hover(std::string & _str, const std::string & _hover, const bool _open)
  {
    if (is_html())
    {
      char buffer[1024];
      if (_open)  sprintf_s(buffer, sizeof(buffer), 
        "<span title=\"%s\">", _hover.c_str());
      else sprintf_s(buffer, sizeof(buffer), "</span>");
      _str.append(buffer);
      return true;
    }
    return false;
  }
#endif

  bool anchor(std::string & _str, const int _id, const char * _tag, const bool _open)
  {
    if (is_html())
    {
      char buffer[1024];
      if (_open)  sprintf_s(buffer, sizeof(buffer), "<A name=\"%08X_%s\">", _id, _tag);
      else sprintf_s(buffer, sizeof(buffer), "</A>");
      _str.append(buffer);
      return true;
    }
    return false;
  }

  bool link_to(std::string & _str, const int _id, const char * _tag, const std::string & _hover, const bool _open)
  {
    if (is_html())
    {
      char buffer[2048];
      if (_open)
      {
        // HTML title hover text is cropped to 64 char in Firefox but displays
        // OK in Chrome. We could use javascript to avoid this limit but HTML
        // is simpler.
        if (_hover.empty()) sprintf_s(buffer, sizeof(buffer),
          "<A href=\"#%08X_%s\">", _id, _tag);
        else sprintf_s(buffer, sizeof(buffer), 
          "<A href=\"#%08X_%s\" title=\"%s\">", _id, _tag, _hover.c_str());
      }
      else sprintf_s(buffer, sizeof(buffer), "</A>");
      _str.append(buffer);
      return true;
    }
    return false;
  }


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  void header(std::string & str)
  { 
    if ( is_html() )
    {
      str.append("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\">");
      str.append("\n<HTML><HEAD>");
      str.append("\n<TITLE>ReForm DEB_out");
      str.append("</TITLE>");
      // javascript lib loads go here
      // stylesheet loads go here
      // within HEAD javascript goes here
      str.append("\n</HEAD>");
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      if ( is_white_on_black() )
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      {
        str.append( "\n<BODY BGCOLOR=\"#000000\" TEXT=\"#FFFFFF\" LINK=\"#%00FFFF\" VLINK=\"#FFFF00\" >");
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        //str.append( "\n<BODY BGCOLOR=\"#000000\" TEXT=\"#FFFFFF\"  >");
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      }
      else
      {
        str.append("\n<BODY BGCOLOR=\"#FFFFFF\" TEXT=\"#000000\" LINK=\"#%FF0000\" VLINK=\"#0000FF\" >");
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        //str.append( "\n<BODY BGCOLOR=\"#000000\" TEXT=\"#FFFFFF\" >");
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      }
      str.append("\n");
    } // endif is_html
    bool date_header = true;
    if (date_header)
    {
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      if(!file_name_.empty())
      {
        str.append(file_name_);
        str.append(" opened ");
      }
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      add_time(str);
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      str.append( "[ Build: " __TIME__  " " __DATE__  "] ");
      if (is_html()) str.append("<BR>");
      str.append("\n");
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    }
  }

  void footer()
  {
    bool date_footer = true;
    if (date_footer)
    {
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      std::string str("\n");
      if(!file_name_.empty()) str.append(file_name_);
      str.append(" Closed: ");
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      add_time(str);
      stream() << str << "\n";
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    }

    if (is_html())
    {
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      stream().print("\n</BODY></HTML>", false);
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    }
  }
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  bool is_first_flush()
  {
    return num_flush_ == 0 ;
  }
  
  int flush()
  {
    int res = 0;
    if ( !current_.empty() )
    {
      const char * fname = file_name();
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      if ((fname != nullptr) || file_is_open() )
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      {
        if ( !file_is_open() )
        {
          file_stream_.open( fname, 
            std::fstream::out | ( (is_appended() && !is_first_flush() ) ? 
                std::fstream::app  :  std::fstream::trunc ) );
        }

        if (file_stream_.is_open())
        {
          std::string hdr;
          if ( !is_appended() )
          { // Reoutput entire file
            header(hdr);
            output_.append(hdr);
            file_stream_ << output_;
          }
          else
          {
            if ( is_first_flush() )
            {
              header(hdr);
              if ( is_retained() )
                output_.append( hdr);
              file_stream_ << hdr;
            }
            ++num_flush_;
          }
          file_stream_ << current_;

          if ( is_retained() )
            output_.append(current_);

          current_.clear(); 
          if ( !is_kept_open() )
            file_stream_.close();
        } // endif fs.is_open
        else
        {
          res = -1;
        }
      }
    } // endif current empty
  return res;
  }  // endfunc flush

  void close()
  {
    footer();
    flush();
  }


  void set_file_name(const char * _name)
  {
    file_name_ = _name;
    if ( is_html_filename(_name) )
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    {
      type_ = (DebStream::StreamType)(type_ | DebStream::StreamType::html);
    }
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  }
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  void set_module_level(const char * const _module, const int _lev)
  {
    std::pair<module_map_itr, bool> ins =  module_map_.insert(
      std::pair<std::string, module_stats>(_module, module_stats(_lev)) );
    if (!ins.second) ins.first->second.lev_ = _lev;
  }

  int get_module_level(const char * const _module) const
  {
    const_module_map_itr it = module_map_.find(std::string(_module));
    if (it == module_map_.end()) return lev_;
    return it->second.lev_;
  }


  void set_module_color(const char * const _module, const int _col)
  {
    std::pair<module_map_itr, bool> ins =  module_map_.insert(
      std::pair<std::string, module_stats>(_module, module_stats(lev_)) );
    ins.first->second.col_ = _col;
  }

  int get_module_color(const char * const _module) const
  {
    const_module_map_itr it = module_map_.find(std::string(_module));
    if (it == module_map_.end()) 
      {
        if (is_white_on_black() ) return 0xFFFFFF;
        else return 0x000000;
      }
    return it->second.col_;
  }
  
  int permission(const int _lev, const int _warn, const char * const _module)
  {
    _warn;
    int lev = get_module_level(_module);
    lev -= _lev;
    if (lev <0) lev = 0;
    if (lev > 0) priority_ = lev;
    return lev;
  }
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  bool is_at_line_start() 
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  {
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    return at_line_start_;
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  }


  DebFile(
    DebStream* _deb_stream,
    DebStream::StreamType _type = (DebStream::StreamType) (DebStream::append | DebStream::retain), 
    const char * _file_name = nullptr) :
  type_(_type), lev_(5), deb_stream_(_deb_stream), num_flush_(0)
  {
    set_file_name(_file_name);
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    indent_size_ = 3;
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    at_line_start_ = false; // Don't want to indent header
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    //    indent_string_ = ".";
    set_module_color("PARA", 0xFF8000);
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    set_module_color("SOLV", 0x00FF00);
    set_module_color("NSLV", 0xFFFF00);
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    set_module_color("FELD", 0x0080FF);
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    set_module_color("CURV", 0x00FFFF);
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    set_module_color("QMGN", 0xFF00FF);
    // Don't set a TEST module colour here because Test is not part of Reform
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  }

  ~DebFile() {}

 
}; // endclass DebFile
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// =====================================
//      DebEnter member funcs
// =====================================

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DebEnter::DebEnter(const char * const _funcname, const int _count, const char * const _module) 
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{
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  // TODO: this might have to be atomic
  static int id_cnt=0;
  module_ = _module;
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  deb_outs_ = 0;
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  deb_lines_ = 0;
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  id_ = ++id_cnt;
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  count_ = _count;
  stream(0, false).dfile()->call_stack().add(_funcname, this);
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}

DebEnter::~DebEnter() 
{
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  DebFile * impl = stream(0, false).dfile();
  impl->call_stack().pop();
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  std::string str;
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  if ( ((deb_outs_ > 0) || (deb_lines_ >0)) && impl->anchor(str, id_, "exit", true))
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  {
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    impl->anchor(str, id_, "exit", false);  
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    impl->print_direct(str);
  }
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}

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DebStream& DebEnter::stream(const int _warn, const bool _print)
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{
  DebStream & ds = ReForm::DebStream::get_global(_warn);
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  DebFile * impl = ds.dfile();

  if ( _print)
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  {
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    if (impl->is_html())
    {
      int col = impl->get_module_color(module_);
      char buffer[256];
      sprintf_s(buffer, sizeof(buffer),"<FONT COLOR=\"#%06X\" SIZE=%i>", 
        col, impl->priority()+1 );
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      impl->print_direct(buffer);
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    }

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    if ( deb_outs_ < 1)
    {
      // First DEB_out in this function so output callstack, and flush.
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      impl->indent(true);
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      std::string str;
      bool is_html = impl->is_html();
      if (is_html)
      {
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        str.append("<FONT SIZE=2><u>");
        impl->anchor(str, id_,"enter", true);
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      }
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      else
      {  // .txt call stack lead in
        str.append("****>");
      }

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      impl->call_stack().get(str);
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      if (is_html) str.append("</u></FONT>");
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      impl->print_direct(str.c_str()); // Don't fork callstack to cerr etc.
      impl->line_break();
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      ds.dfile()->flush();
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    }
    ++deb_outs_;
  }

  return ds;
}

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int DebEnter::permission(const int _lev, const int _warn)
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{ 
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  int res = ReForm::DebStream::get_global().dfile()->permission(_lev, _warn, module_);
  return res;
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}

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void FunctionCallSequence::indent(std::string & _str, DebFile * _dfile, bool _is_html)
{
  int num = number_calls();
  for (int i=0; i<num; ++i) 
  { 
    DebEnter * deb = debs_[i];
    if (_is_html)
    {
      /* HTML indent element is <L> with span title the name and count
      of the function and with < linking to the entry anchor (if present) and
      > linking to the exit anchor (will be present).
      L is the first letter of the module name */
      char hovert[1024];
      sprintf_s(hovert, sizeof(hovert), "%s[%i]", func_name_.c_str(), deb->count_);
      int col = _dfile->get_module_color(deb->module_);
      char buffer[1024];
      sprintf_s(buffer, sizeof(buffer), "<FONT COLOR=\"#%06X\">.", col);

      _dfile->hover(_str, std::string(hovert), true);

      _str.append(buffer);
      std::string cstk;
      //impl->call_stack().get(cstk);
      if ((deb->deb_outs_>0) && _dfile->link_to(_str, deb->id_, "enter", cstk, true))
      {
        _str.append("&lt;");
        _dfile->link_to(_str, deb->id_, "enter", cstk,  false);
      }
      else _str.append("&lt;");

      _str.append(deb->module_, 1);

      if (_dfile->link_to(_str, deb->id_, "exit", cstk, true))
      {
        _str.append("&gt;");
        _dfile->link_to(_str, deb->id_, "exit", cstk,  false);
        ++deb->deb_lines_;
      }

      _dfile->hover(_str, std::string(hovert), false);

      _str.append("</FONT>");
    } // endif html
    else _str.append("  ");
  }
}

bool CallStack::indent(std::string& _str, DebFile * _dfile, const bool is_html)
{

  if (_dfile->indent_size() == 0) return false;
  if (is_html)
  {
    char buffer[64];
    sprintf_s(buffer, sizeof(buffer), "<FONT SIZE=%i>", _dfile->indent_size());
    _str.append(buffer);
  }
  int num = (int)calls_.size();
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  int i0 = 0;
  if (!is_html) ++i0; // Don't waste whitespace on first level indent if .txt
  for (int i =i0; i< num; ++i)
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  {
    calls_[i].indent(_str, _dfile,  is_html);
  }
  if (is_html) _str.append(":&nbsp;</FONT>\n");
  return true;
}


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// =====================================
//        DebStream member funcs
// =====================================


DebStream::DebStream(const char * _file_name, StreamType _type)
{
  // NB. disable DEB_out over this new if new contains DEB_out
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  dfile_ = new DebFile(this, _type, _file_name);
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}

DebStream::~DebStream()
{
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  if ( dfile_ != nullptr)
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  {
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    dfile()->close();
    dfile()->clear();
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    // NB. disable DEB_out over this delete if delete contains DEB_out
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    delete dfile_;
    dfile_ = nullptr;
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  }
}

DebStream& DebStream::print(const int _i)
{
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  dfile_->print(_i);
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  return *this;
};

DebStream& DebStream::print(const double _d)
{
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  dfile_->print(_d);
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  return *this;
};

DebStream& DebStream::print(const char * _s, bool _fork)
{
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  dfile_->print(_s, _fork);
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  return *this;
};

DebStream& DebStream::print(const char _c)
{
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  dfile_->print(_c);
  return *this;
};

DebStream& DebStream::print(const DebCommand & _co)
{
  dfile_->print(_co);
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  return *this;
};

DebStream & DebStream::get_global(int _warn)
{
  _warn; 
  // TODO: Replace with a Singleton?? ThreadArray??
  static DebStream g_ds__("reform_deb_out.txt");
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  //static DebStream g_ds__("reform_deb_out.htm");
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  return g_ds__;
}

DebStream& operator<<(DebStream& ds, const int i ) { return ds.print(i);}
DebStream& operator<<(DebStream& ds, const double d ) { return ds.print(d);}
DebStream& operator<<(DebStream& ds, const char * const s ) { return ds.print(s);}
DebStream& operator<<(DebStream& ds, const char c) { return ds.print(c);}

DebStream& operator<<(DebStream& ds, const size_t i ) { return ds.print((int)i);}
DebStream& operator<<(DebStream& ds, const unsigned int i ) { return ds.print((int)i);}
DebStream& operator<<(DebStream& ds, const float f ) { return ds.print((double)f);}
DebStream& operator<<(DebStream& ds, const std::string& s ) { return ds.print(s.c_str());}

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DebStream& operator<<(DebStream& ds, const DebCommand& co ) { return ds.print(co); }


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}//namespace


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#endif // DEB_ON