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file.h

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00001 
00002 
00003 //
00004 //      FILE.H                                          (c)     YoY'99                                          WEB: www.aestesis.org
00005 //
00008 #ifndef                                                 _FILE_H_
00009 #define                                                 _FILE_H_
00012 #include                                                <stdio.h>
00013 #include                                                "types.h"
00014 #include                                                "node.h"
00017 
00018 //      If you use directly the variables in the class API, it's at your own risks. Prefer the methods...   
00019 
00022 
00023 #define                                                 guidFILE                                                (Afile::CI.guid)
00024 
00027 
00028 class Afile : public Anode
00029 {
00030 public:
00031         ADLL static ACI                         CI;
00032         virtual ACI                                     *getCI                                                  ()                                              { return &CI; }
00033 
00034                                                                 Afile                                                   (char *name)                    : Anode(name)   { offset=0; size=0; }
00035         virtual                                         ~Afile                                                  ()                                              { }
00036 
00037         virtual int                                     read                                                    (void *p, int s)                { offset+=s; return s; }
00038         virtual int                                     write                                                   (void *p, int s)                { offset+=s; size=maxi(size, offset); return s; }
00039 
00040         virtual bool                            writeString                                             (char *s)                               { offset+=strlen(s)+4; return TRUE; }
00041         virtual bool                            readString                                              (char *s)=0;
00042 
00043         virtual bool                            seek                                                    (int n)                                 { offset=n; return TRUE; }
00044         virtual int                                     getSize                                                 ()                                              { return size; }
00045 
00046         virtual bool                            isOK                                                    ()                                              { return true; }
00047 
00048         // private
00049 
00050         int                                                     offset;
00051         int                                                     size;
00052 };
00053 
00056 #endif                                                  //_FILE_H_

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