commit 3ad3807a5c4039618175c042a1121c926c2c62e9
author Mathias Agopian <mathias@google.com> Tue Nov 29 11:42:32 2011 -0800
committer Mathias Agopian <mathias@google.com> Tue Nov 29 11:42:59 2011 -0800
tree 4bb0ef79b971d22d0b353cad06df1afa204f4cee
parent 41f673c9b3aac0d96e41c928845c39186d565212

BitTube::read now handles EAGAIN

Change-Id: Iacda2386342ba0727bbf278f6c597488d5467bb8

libs/gui/BitTube.cpp

diff --git a/libs/gui/BitTube.cpp b/libs/gui/BitTube.cpp
index c632b43..fa8d0ea 100644
--- a/libs/gui/BitTube.cpp
+++ b/libs/gui/BitTube.cpp
@@ -97,6 +97,11 @@
         len = ::read(mReceiveFd, vaddr, size);
         err = len < 0 ? errno : 0;
     } while (err == EINTR);
+    if (err == EAGAIN || err == EWOULDBLOCK) {
+        // EAGAIN means that we have non-blocking I/O but there was
+        // no data to be read. Nothing the client should care about.
+        return 0;
+    }
     return err == 0 ? len : -err;
 }