Add MiniFence to drop HWC2on1Adapter libui dep
This class will soon become a library used by devices with no support
for HWC2. They will link against libhwc2on1adapter. Drivers should have
no depedencies on libui.
Test:Manual
Change-Id: Iabd2aa89fc3b737a999632a16c4f6c30464787c4
diff --git a/services/surfaceflinger/DisplayHardware/MiniFence.cpp b/services/surfaceflinger/DisplayHardware/MiniFence.cpp
new file mode 100644
index 0000000..ecfb063
--- /dev/null
+++ b/services/surfaceflinger/DisplayHardware/MiniFence.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "MiniFence.h"
+
+#include <unistd.h>
+
+namespace android {
+
+const sp<MiniFence> MiniFence::NO_FENCE = sp<MiniFence>(new MiniFence);
+
+MiniFence::MiniFence() :
+ mFenceFd(-1) {
+}
+
+MiniFence::MiniFence(int fenceFd) :
+ mFenceFd(fenceFd) {
+}
+
+MiniFence::~MiniFence() {
+ if (mFenceFd != -1) {
+ close(mFenceFd);
+ }
+}
+
+int MiniFence::dup() const {
+ return ::dup(mFenceFd);
+}
+}