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receive buffer optimization. added receive_buffer_size and used_receive_buffer to peer_info. changed plugin api to make use of new disk_buffer_holder type

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Arvid Norberg
2008-04-10 10:03:23 +00:00
parent 5f35d170b0
commit 093d912e9a
25 changed files with 503 additions and 86 deletions
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24
docs/libtorrent_plugins.rst
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@@ -200,7 +200,7 @@ peer_plugin
virtual bool on_have_none();
virtual bool on_allowed_fast(int index);
virtual bool on_request(peer_request const& req);
virtual bool on_piece(peer_request const& piece, char const* data);
virtual bool on_piece(peer_request const& piece, disk_buffer_holder& buffer);
virtual bool on_cancel(peer_request const& req);
virtual bool on_reject(peer_request const& req);
virtual bool on_suggest(int index);
@@ -216,3 +216,25 @@ peer_plugin
virtual bool write_request(peer_request const& r);
};
disk_buffer_holder
==================
::
struct disk_buffer_holder
{
disk_buffer_holder(aux::session_impl& s, char* b);
~disk_buffer_holder();
char* release();
char* buffer();
};
The disk buffer holder acts like a ``scoped_ptr`` that frees a disk buffer
when it's destructed, unless it's released. ``release`` returns the disk
buffer and transferres ownership and responsibility to free it to the caller.
A disk buffer is freed by passing it to ``session_impl::free_disk_buffer()``.
``buffer()`` returns the pointer without transferring responsibility. If
this buffer has been released, ``buffer()`` will return 0.