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improved support for sparse files on windows

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This commit is contained in:
Arvid Norberg
2009-02-17 00:11:38 +00:00
parent 7b2be278f1
commit 13ca386838
7 changed files with 145 additions and 14 deletions
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12
docs/manual.rst
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@@ -5000,6 +5000,7 @@ this::
virtual bool initialize(bool allocate_files) = 0;
virtual int readv(file::iovec_t const* bufs, int slot, int offset, int num_bufs) = 0;
virtual int writev(file::iovec_t const* bufs, int slot, int offset, int num_bufs) = 0;
virtual int sparse_end(int start) const;
virtual bool move_storage(fs::path save_path) = 0;
virtual bool verify_resume_data(lazy_entry const& rd, std::string& error) = 0;
virtual bool write_resume_data(entry& rd) const = 0;
@@ -5067,6 +5068,17 @@ exceptions when it's not. Specifically if the read cache is disabled/or full and
client requests unaligned data, or the file itself is not aligned in the torrent.
Most clients request aligned data.
sparse_end()
------------
::
int sparse_end(int start) const;
This function is optional. It is supposed to return the first piece, starting at
``start`` that is fully contained within a data-region on disk (i.e. non-sparse
region). The purpose of this is to skip parts of files that can be known to contain
zeros when checking files.
move_storage()
--------------