From 66d5b7ac5c78330dd7ad38f0319d432e2df7230f Mon Sep 17 00:00:00 2001
From: Devin Moore <devinmoore@google.com>
Date: Thu, 7 Jul 2022 21:42:10 +0000
Subject: Add linkToDeath support for RPC binder so a client can act on
 disconnect

This requires an incoming thread to be listening to the connection in
order to be notified.

Test: atest binderRpcTest
Test: atest binderRpcTestSingleThreaded
Bug: 182939380
Change-Id: I3746de6e8cff99bb267867c5dc60a6815b19fb92
---
 libs/binder/RpcSession.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'libs/binder/RpcSession.cpp')

diff --git a/libs/binder/RpcSession.cpp b/libs/binder/RpcSession.cpp
index 80f6a37f51..e6dbd79ffb 100644
--- a/libs/binder/RpcSession.cpp
+++ b/libs/binder/RpcSession.cpp
@@ -223,6 +223,11 @@ bool RpcSession::shutdownAndWait(bool wait) {
 
     _l.unlock();
 
+    if (status_t res = state()->sendObituaries(sp<RpcSession>::fromExisting(this)); res != OK) {
+        ALOGE("Failed to send obituaries as the RpcSession is shutting down: %s",
+              statusToString(res).c_str());
+    }
+
     mRpcBinderState->clear();
 
     return true;
-- 
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