commit d5855a65d8520b91286f5ca3b27f17a6b8d68b9e
author Fan Xu <fanxu@google.com> Mon Jan 14 15:52:42 2019 -0800
committer Fan Xu <fanxu@google.com> Fri Jan 18 11:24:44 2019 -0800
tree da7cff59bc241cde24fa306764e2deed0021ce77
parent 7bab27f5cd27c3ebcc3ffc97bee8cbd7c6e98ac3

Allow create BufferHubEventFd from existing fd

Add a constructor to BufferHubEventFd.

Rewrite EventFd_testDupEventFd to test on the constructor.

Test: BufferHub_test
Bug: 68770788
Change-Id: I565aff02c1a6e45498e64a817539952911850d48

libs/ui/BufferHubEventFd.cpp

diff --git a/libs/ui/BufferHubEventFd.cpp b/libs/ui/BufferHubEventFd.cpp
index 978b352..bffc2ca 100644
--- a/libs/ui/BufferHubEventFd.cpp
+++ b/libs/ui/BufferHubEventFd.cpp
@@ -23,6 +23,8 @@
 
 BufferHubEventFd::BufferHubEventFd() : mFd(eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK)) {}
 
+BufferHubEventFd::BufferHubEventFd(int fd) : mFd(fd) {}
+
 status_t BufferHubEventFd::signal() const {
     if (!isValid()) {
         ALOGE("%s: cannot signal an invalid eventfd.", __FUNCTION__);