add moving_storage field to torrent_status

ChangeLog

@@ -1,3 +1,4 @@
+	* add moving_storage field to torrent_status
 	* expose UPnP and NAT-PMP mapping in session object
 	* DHT refactoring and support for storing arbitrary data with put
 	* support building on android

include/libtorrent/torrent.hpp

@@ -1346,7 +1346,10 @@ namespace libtorrent
 		// more blocks to disk!
 		bool m_deleted:1;
 
-		// TODO: there's space for another 2 bits here
+		// set to true while moving the storage
+		bool m_moving_storage:1;
+
+		// TODO: there's space for another bit here
 
 // ----
 

include/libtorrent/torrent_handle.hpp

@@ -1431,6 +1431,11 @@ namespace libtorrent
 		// checked or as soon as one piece fails the hash check.
 		bool seed_mode;
 
+		// this is true if this torrent's storage is currently being moved from
+		// one location to another. This may potentially be a long operation
+		// if a large file ends up being copied from one drive to another.
+		bool moving_storage;
+
 		// the info-hash for this torrent
 		sha1_hash info_hash;
 	};

src/torrent.cpp

@@ -299,6 +299,7 @@ namespace libtorrent
 		, m_is_active_finished(false)
 		, m_ssl_torrent(false)
 		, m_deleted(false)
+		, m_moving_storage(false)
 		, m_incomplete(0xffffff)
 		, m_abort(false)
 		, m_announce_to_dht((p.flags & add_torrent_params::flag_paused) == 0)
@@ -6506,6 +6507,7 @@ namespace libtorrent
 #endif
 			m_owning_storage->async_move_storage(path, flags
 				, boost::bind(&torrent::on_storage_moved, shared_from_this(), _1, _2));
+			m_moving_storage = true;
 		}
 		else
 		{
@@ -6526,6 +6528,8 @@ namespace libtorrent
 	{
 		TORRENT_ASSERT(m_ses.is_network_thread());
 
+		m_moving_storage = false;
+
 		if (ret == piece_manager::no_error || ret == piece_manager::need_full_check)
 		{
 			if (alerts().should_post<storage_moved_alert>())
@@ -8699,6 +8703,7 @@ namespace libtorrent
 		st->has_incoming = m_has_incoming;
 		if (m_error) st->error = convert_from_native(m_error.message()) + ": " + m_error_file;
 		st->seed_mode = m_seed_mode;
+		st->moving_storage = m_moving_storage;
 
 		st->added_time = m_added_time;
 		st->completed_time = m_completed_time;

src/torrent_handle.cpp

@@ -140,6 +140,7 @@ namespace libtorrent
 		, has_metadata(false)
 		, has_incoming(false)
 		, seed_mode(false)
+		, moving_storage(false)
 		, info_hash(0)
 	{}