Update for hidlized hwservicemanager.

Test: end to end
Bug: 32313592

Change-Id: I11496e4c3dd6d0d43f635886b46609cb8e430efc
diff --git a/ServiceManagement.cpp b/ServiceManagement.cpp
new file mode 100644
index 0000000..102fa6c
--- /dev/null
+++ b/ServiceManagement.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#define LOG_TAG "ServiceManagement"
+
+#include <hidl/ServiceManagement.h>
+#include <hidl/Static.h>
+#include <hidl/Status.h>
+
+#include <hwbinder/IPCThreadState.h>
+#include <hwbinder/Parcel.h>
+#include <utils/Log.h>
+#include <utils/SystemClock.h>
+
+#include <unistd.h>
+
+#include <android/hidl/manager/1.0/IServiceManager.h>
+#include <android/hidl/manager/1.0/IHwServiceManager.h>
+
+using android::hidl::manager::V1_0::IHwServiceManager;
+using android::hidl::manager::V1_0::IServiceManager;
+
+namespace android {
+namespace hardware {
+
+sp<IServiceManager> defaultServiceManager() {
+
+    if (gDefaultServiceManager != NULL) return gDefaultServiceManager;
+    if (access("/dev/hwbinder", F_OK|R_OK|W_OK) != 0) {
+        // HwBinder not available on this device or not accessible to
+        // this process.
+        return nullptr;
+    }
+    {
+        AutoMutex _l(gDefaultServiceManagerLock);
+        while (gDefaultServiceManager == NULL) {
+            gDefaultServiceManager = interface_cast<IHwServiceManager>(
+                ProcessState::self()->getContextObject(NULL));
+            if (gDefaultServiceManager == NULL)
+                sleep(1);
+        }
+    }
+
+    return gDefaultServiceManager;
+}
+
+}; // namespace hardware
+}; // namespace android