rkohrt

let KeepAliveSender detect if websocket is no longer alive - fixes #6447 (non GCM)

1

let KeepAliveSender detect if the websocket is no longer alive and trigger recreation of SignalServiceMessagePipe - fixes WhisperSystems/Signal-Android#6447 for non GCM devices By not checking for the response of the...

depth_first_search: Return visitor by value

12

In the documentation the `DFSVisitor` is taken by reference: https://www.boost.org/doc/libs/1_80_0/libs/graph/doc/depth_first_visit.html , while in the actual header it is taken by copy. I assume the code in the header is by...