mirror of https://github.com/OpenMW/openmw.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
32 lines
890 B
C++
32 lines
890 B
C++
#ifndef OPENMW_CONSTRAINEDFILESTREAMBUF_H
|
|
#define OPENMW_CONSTRAINEDFILESTREAMBUF_H
|
|
|
|
#include <streambuf>
|
|
#include <filesystem>
|
|
|
|
#include <components/platform/file.hpp>
|
|
|
|
namespace Files
|
|
{
|
|
/// A file streambuf constrained to a specific region in the file, specified by the 'start' and 'length' parameters.
|
|
class ConstrainedFileStreamBuf final : public std::streambuf
|
|
{
|
|
public:
|
|
ConstrainedFileStreamBuf(const std::filesystem::path &fname, std::size_t start, std::size_t length);
|
|
|
|
int_type underflow() final;
|
|
|
|
pos_type seekoff(off_type offset, std::ios_base::seekdir whence, std::ios_base::openmode mode) final;
|
|
|
|
pos_type seekpos(pos_type pos, std::ios_base::openmode mode) final;
|
|
|
|
private:
|
|
std::size_t mOrigin;
|
|
std::size_t mSize;
|
|
Platform::File::ScopedHandle mFile;
|
|
char mBuffer[8192]{ 0 };
|
|
};
|
|
}
|
|
|
|
#endif
|