SpectMorph: lib/smstdioin.hh Source File

SpectMorph
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00001 /*
00002  * Copyright (C) 2010 Stefan Westerfeld
00003  *
00004  * This library is free software; you can redistribute it and/or modify it
00005  * under the terms of the GNU Lesser General Public License as published by the
00006  * Free Software Foundation; either version 3 of the License, or (at your
00007  * option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful, but WITHOUT
00010  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00011  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
00012  * for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public License
00015  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
00016  */
00017 
00018 #ifndef SPECTMORPH_STDIO_IN_HH
00019 #define SPECTMORPH_STDIO_IN_HH
00020 
00021 #include <string>
00022 #include "smgenericin.hh"
00023 
00024 namespace SpectMorph
00025 {
00026 
00027 class StdioIn : public GenericIn
00028 {
00029   FILE        *file;
00030   std::string  filename;
00031 
00032   StdioIn (FILE *file, const std::string& filename);
00033   ~StdioIn();
00034 public:
00035   static GenericIn* open (const std::string& filename);
00036 
00037   int get_byte();     // like fgetc
00038   int read (void *ptr, size_t size);
00039   bool skip (size_t size);
00040   unsigned char *mmap_mem (size_t& remaining);
00041   size_t get_pos();
00042   GenericIn *open_subfile (size_t pos, size_t len);
00043 };
00044 
00045 }
00046 
00047 #endif /* SPECTMORPH_STDIO_IN_HH */