gio, tests: fix leak of dbus connection.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 1- Start server gio/tests/.libs/gdbus-example-peer --server --address unix:abstract=/tmp/peer/myaddr
2- Check the open fds for server process lsof -a -p 8253 .................. gdbus-exa 8253 imran 0u CHR 136,1 0t0 4 /dev/pts/1 gdbus-exa 8253 imran 1u CHR 136,1 0t0 4 /dev/pts/1 gdbus-exa 8253 imran 2u CHR 136,1 0t0 4 /dev/pts/1 gdbus-exa 8253 imran 3u 0000 0,9 0 6602 anon_inode gdbus-exa 8253 imran 4u unix 0xf1005680 0t0 966830 @/tmp/peer/myaddr
3- Run the client gio/tests/.libs/gdbus-example-peer --address unix:abstract=/tmp/peer/myaddr
4- Check the open fds for server process again lsof -a -p 8253 .................. gdbus-exa 8253 imran 0u CHR 136,1 0t0 4 /dev/pts/1 gdbus-exa 8253 imran 1u CHR 136,1 0t0 4 /dev/pts/1 gdbus-exa 8253 imran 2u CHR 136,1 0t0 4 /dev/pts/1 gdbus-exa 8253 imran 3u 0000 0,9 0 6602 anon_inode gdbus-exa 8253 imran 4u unix 0xf1005680 0t0 966830 @/tmp/peer/myaddr gdbus-exa 8253 imran 5u unix 0xf1004280 0t0 965811 @/tmp/peer/myaddr gdbus-exa 8253 imran 6u 0000 0,9 0 6602 anon_inode
5- Please note the fd '5u' which is created when client makes connection but even when the client goes down, the descriptor is still there.. ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////