commit 7dae0e47abb5c1fb852c10b3ba0bc6464dd76e96
author Jeff Brown <jeffbrown@google.com> Thu Sep 16 17:04:52 2010 -0700
committer Jeff Brown <jeffbrown@google.com> Thu Sep 16 17:04:52 2010 -0700
tree fb36ff43a393b81bc1bdbbf6cde025853561b8ac
parent 6abea1ebc29c7bc8397f0470d57a4e485b5d4ee3

Ensure input dispatcher and native looper handles EINTR.

Change-Id: I0a42db5f273b9bfe4ab174e4ee65d5d852f9f6bc

libs/ui/InputTransport.cpp

diff --git a/libs/ui/InputTransport.cpp b/libs/ui/InputTransport.cpp
index 4c402dc..2c6346e 100644
--- a/libs/ui/InputTransport.cpp
+++ b/libs/ui/InputTransport.cpp
@@ -131,7 +131,10 @@
 }
 
 status_t InputChannel::sendSignal(char signal) {
-    ssize_t nWrite = ::write(mSendPipeFd, & signal, 1);
+    ssize_t nWrite;
+    do {
+        nWrite = ::write(mSendPipeFd, & signal, 1);
+    } while (nWrite == -1 && errno == EINTR);
 
     if (nWrite == 1) {
 #if DEBUG_CHANNEL_SIGNALS
@@ -147,7 +150,11 @@
 }
 
 status_t InputChannel::receiveSignal(char* outSignal) {
-    ssize_t nRead = ::read(mReceivePipeFd, outSignal, 1);
+    ssize_t nRead;
+    do {
+        nRead = ::read(mReceivePipeFd, outSignal, 1);
+    } while (nRead == -1 && errno == EINTR);
+
     if (nRead == 1) {
 #if DEBUG_CHANNEL_SIGNALS
         LOGD("channel '%s' ~ received signal '%c'", mName.string(), *outSignal);