fix possible crash at session close.
authorRobin Gareus <robin@gareus.org>
Mon, 18 Apr 2016 19:55:50 +0000 (21:55 +0200)
committerRobin Gareus <robin@gareus.org>
Mon, 18 Apr 2016 19:55:50 +0000 (21:55 +0200)
commit26532364bbd2e591f9dcc2a28b0eb22a88a90472
treefe3ee660e1c0414afd76da98735d547c961f232f
parent218b016a80a54db9f2804c258354ba7c39374888
fix possible crash at session close.

In the wake of 81faa3b420303eec2ca0e3. Disconnect Signal from process
callback, may notify an IO that just reached a zero shared ptr refcount
due to route-deletion (GUI thread) resulting in a double free.
libs/ardour/io.cc