exposed upload_only in peer_info

docs/building.html

@@ -360,6 +360,8 @@ API is used.</li>
 <li><tt class="docutils literal"><span class="pre">off</span></tt> - internal invariant checks are
 disabled. The resulting executable will run
 faster than a regular debug build.</li>
+<li><tt class="docutils literal"><span class="pre">full</span></tt> - turns on extra expensive invariant
+checks.</li>
 </ul>
 </td>
 </tr>
@@ -520,8 +522,8 @@ invariant checks and asserts built into it. If you want to disable such checks
 defines you can use to control the build.</p>
 <table border="1" class="docutils">
 <colgroup>
-<col width="44%" />
+<col width="45%" />
-<col width="56%" />
+<col width="55%" />
 </colgroup>
 <thead valign="bottom">
 <tr><th class="head">macro</th>
@@ -648,6 +650,11 @@ very well. This option can be used to still
 build in debug mode, with asserts enabled, but
 make the resulting executable faster.</td>
 </tr>
+<tr><td><tt class="docutils literal"><span class="pre">TORRENT_EXPENSIVE_INVARIANT_CHECKS</span></tt></td>
+<td>This will enable extra expensive invariant
+checks. Useful for finding particular bugs
+or for running before releases.</td>
+</tr>
 </tbody>
 </table>
 <p>If you experience that libtorrent uses unreasonable amounts of cpu, it will

docs/manual.html

@@ -2524,6 +2524,7 @@ struct peer_info
                 seed = 0x400,
                 optimistic_unchoke = 0x800,
                 snubbed = 0x1000,
+                upload_only = 0x2000,
                 rc4_encrypted = 0x100000,
                 plaintext_encrypted = 0x200000
         };
@@ -2678,6 +2679,12 @@ the request timeout from when the request was sent.
 We're currently picking one block at a time from this
 peer.</td>
 </tr>
+<tr><td><tt class="docutils literal"><span class="pre">upload_only</span></tt></td>
+<td>This peer has either explicitly (with an extension)
+or implicitly (by becoming a seed) told us that it
+will not downloading anything more, regardless of
+which pieces we have.</td>
+</tr>
 </tbody>
 </table>
 <p><tt class="docutils literal"><span class="pre">source</span></tt> is a combination of flags describing from which sources this peer

docs/manual.rst

@@ -2502,6 +2502,7 @@ It contains the following fields::
 			seed = 0x400,
 			optimistic_unchoke = 0x800,
 			snubbed = 0x1000,
+			upload_only = 0x2000,
 			rc4_encrypted = 0x100000,
 			plaintext_encrypted = 0x200000
 		};
@@ -2639,6 +2640,11 @@ any combination of the enums above. The following table describes each flag:
 |                         | We're currently picking one block at a time from this |
 |                         | peer.                                                 |
 +-------------------------+-------------------------------------------------------+
+| ``upload_only``         | This peer has either explicitly (with an extension)   |
+|                         | or implicitly (by becoming a seed) told us that it    |
+|                         | will not downloading anything more, regardless of     |
+|                         | which pieces we have.                                 |
++-------------------------+-------------------------------------------------------+
 
 __ extension_protocol.html
 

examples/client_test.cpp

@@ -381,6 +381,7 @@ void print_peer_info(std::ostream& out, std::vector<libtorrent::peer_info> const
 				(i->write_state == peer_info::bw_global)?'w':
 				(i->write_state == peer_info::bw_network)?'W':'.')
 			<< ((i->flags & peer_info::snubbed)?'S':'.')
+			<< ((i->flags & peer_info::upload_only)?'U':'D')
 #ifndef TORRENT_DISABLE_ENCRYPTION
 			<< ((i->flags & peer_info::rc4_encrypted)?'E':
 				(i->flags & peer_info::plaintext_encrypted)?'e':'.')

include/libtorrent/peer_info.hpp

@@ -57,7 +57,8 @@ namespace libtorrent
 			on_parole = 0x200,
 			seed = 0x400,
 			optimistic_unchoke = 0x800,
-			snubbed = 0x1000
+			snubbed = 0x1000,
+			upload_only = 0x2000
 #ifndef TORRENT_DISABLE_ENCRYPTION
 			, rc4_encrypted = 0x100000,
 			plaintext_encrypted = 0x200000

src/peer_connection.cpp

@@ -2497,6 +2497,7 @@ namespace libtorrent
 
 		p.flags |= is_seed() ? peer_info::seed : 0;
 		p.flags |= m_snubbed ? peer_info::snubbed : 0;
+		p.flags |= m_upload_only ? peer_info::upload_only : 0;
 		if (peer_info_struct())
 		{
 			policy::peer* pi = peer_info_struct();