bsnes/purify/nall/stream/file.hpp

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#ifndef NALL_STREAM_FILE_HPP
#define NALL_STREAM_FILE_HPP
#include <nall/file.hpp>
namespace nall {
struct filestream : stream {
using stream::read;
using stream::write;
bool seekable() const { return true; }
bool readable() const { return true; }
bool writable() const { return pwritable; }
bool randomaccess() const { return false; }
unsigned size() const { return pfile.size(); }
unsigned offset() const { return pfile.offset(); }
void seek(unsigned offset) const { pfile.seek(offset); }
uint8_t read() const { return pfile.read(); }
void write(uint8_t data) const { pfile.write(data); }
filestream(const string &filename) {
pfile.open(filename, file::mode::readwrite);
pwritable = pfile.open();
if(!pwritable) pfile.open(filename, file::mode::read);
}
filestream(const string &filename, file::mode mode) {
pfile.open(filename, mode);
pwritable = mode == file::mode::write || mode == file::mode::readwrite;
}
private:
mutable file pfile;
bool pwritable;
};
}
#endif