#include <stdexcept>
#include <string>
#include "buffered.h"
-#include "filtered.h"
#include "handle.h"
#include "seekable.h"
{
public:
file_not_found(const std::string &fn): std::runtime_error(fn) { }
- ~file_not_found() throw() { }
+ virtual ~file_not_found() throw() = default;
};
class file_already_exists: public std::runtime_error
{
public:
file_already_exists(const std::string &fn): std::runtime_error(fn) { }
- ~file_already_exists() throw() { }
+ virtual ~file_already_exists() throw() = default;
};
public:
virtual ~File();
- void set_block(bool);
+ virtual void set_block(bool);
+ virtual void set_inherit(bool);
protected:
- virtual unsigned do_write(const char *, unsigned);
- virtual unsigned do_read(char *, unsigned);
+ virtual std::size_t do_write(const char *, std::size_t);
+ virtual std::size_t do_read(char *, std::size_t);
public:
virtual void sync();
inline File::CreateMode operator~(File::CreateMode m)
{ return File::CreateMode(~static_cast<int>(m)); }
-typedef Filtered<File, Buffered> BufferedFile;
+
+class BufferedFile: public Seekable
+{
+private:
+ File file;
+ Buffered buffer;
+ SeekOffset position;
+
+public:
+ BufferedFile(const std::string &, Mode = M_READ, File::CreateMode = File::C_OVERWRITE);
+
+ virtual void set_block(bool);
+ virtual void set_inherit(bool);
+
+protected:
+ virtual std::size_t do_write(const char *, std::size_t);
+ virtual std::size_t do_read(char *, std::size_t);
+public:
+ virtual std::size_t put(char);
+
+ virtual bool getline(std::string &);
+ virtual int get();
+
+ virtual const Handle &get_handle(Mode);
+
+ virtual SeekOffset seek(SeekOffset, SeekType);
+ virtual SeekOffset tell() const { return position; }
+};
} // namespace IO
} // namespace Msp