commit ffa3aaac5513bc2ef6c7d3f88db9976f86275f88
author Andrei Homescu <ahomescu@google.com> Thu Apr 07 05:06:33 2022 +0000
committer Andrei Homescu <ahomescu@google.com> Fri Jul 01 05:50:42 2022 +0000
tree 5f3b4577b71bb529d7954c28f9d0390a558afc63
parent 992a405fd8d4025f5c5e7423530f398d459fff6b

libbinder: add build option for single-threaded RPC

Trusty does not support threading. This adds a build option
to disable mutexes and other threading code from RpcState,
RpcSession, and RpcServer.

Bug: 224644083
Test: build Trusty
Change-Id: Iaa78caca1ddee45be7c2def2755598decc0d4d15

libs/binder/FdTrigger.h

diff --git a/libs/binder/FdTrigger.h b/libs/binder/FdTrigger.h
index a545d6c..5c7102e 100644
--- a/libs/binder/FdTrigger.h
+++ b/libs/binder/FdTrigger.h
@@ -55,7 +55,11 @@
     [[nodiscard]] status_t triggerablePoll(base::borrowed_fd fd, int16_t event);
 
 private:
+#ifdef BINDER_RPC_SINGLE_THREADED
+    bool mTriggered = false;
+#else
     base::unique_fd mWrite;
     base::unique_fd mRead;
+#endif
 };
 } // namespace android