bootstrap.hpp

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/* Copyright 1994, 1995 LongView Technologies L.L.C. $Revision: 1.13 $ */
/* Copyright (c) 2006, Sun Microsystems, Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
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    * 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 Sun Microsystems nor the names of its contributors may be used to endorse or promote products derived 
          from this software without specific prior written permission.

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// bootstrap parses and allocates memOops from a text file

class bootstrap: CHeapObj {
 private:
  // Tables
  oop* oop_table;
  int number_of_oops;
  int max_number_of_oops;

  int position;

  bool _new_format;

  void initialize_tables(int initial_table_size);

  void add(oop obj);
  oop  at(int index);

  // File
  char* file_name;
  FILE* stream;
  int   file_size;
  char get_char();
  int  get_integer();

  // Error handline
  bool _has_error;

  // Parsing
  void open_file();
  void parse_file();
  oop  get_object();
  void close_file();
  void insert_symbol(memOop obj);
 public:
  bootstrap(char *name);
  ~bootstrap();

  bool has_error() { return _has_error; }

  void read_mark(markOop* mark_addr);
  void read_oop(oop* oop_addr) { *oop_addr = get_object(); }

  char       read_byte()       { return get_char(); }
  doubleByte read_doubleByte() { return (doubleByte) get_integer(); }
  long       read_long()       { return get_integer(); } 
  double     read_double();

  bool new_format() const { return _new_format; }

  bool is_byte() { return getc(stream) == '4'; }
};

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