cfilearchive.h

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/*
 * Copyright (C) Volition, Inc. 1999.  All rights reserved.
 *
 * All source code herein is the property of Volition, Inc. You may not sell 
 * or otherwise commercially exploit the source or things you created based on the 
 * source.
 *
*/ 



#ifndef _CFILEARCHIVE_H
#define _CFILEARCHIVE_H

#ifndef _CFILE_INTERNAL 
#error This file should only be included internally in CFILE!!
#endif

// The following Cfile_block data is private to cfile.cpp
// DO NOT MOVE the Cfile_block* information to cfile.h / do not extern this data
//
#define CFILE_BLOCK_UNUSED              0
#define CFILE_BLOCK_USED                1

typedef struct Cfile_block {
        int             type;                           // CFILE_BLOCK_UNUSED, CFILE_BLOCK_USED
        int             dir_type;               // directory location
        FILE            *fp;                            // File pointer if opening an individual file
        void            *data;                  // Pointer for memory-mapped file access.  NULL if not mem-mapped.
#ifdef _WIN32
        HANDLE  hInFile;                        // Handle from CreateFile()
        HANDLE  hMapFile;               // Handle from CreateFileMapping()
#else
//      int             fd;                             // file descriptor
        size_t  data_length;    // length of data for mmap
#endif
        int             lib_offset;
        int             raw_position;
        int             size;                           // for packed files

        size_t  max_read_len;   // max read offset, for special error handling
        
        const char* source_file;
        int line_num;
} Cfile_block;

#define MAX_CFILE_BLOCKS        64
extern Cfile_block Cfile_block_list[MAX_CFILE_BLOCKS];

// Called once to setup the low-level reading code.
void cf_init_lowlevel_read_code( CFILE * cfile, int lib_offset, int size, int pos );

#endif