Add CLI for Directly Invoking IDL APIs
Initial implementation supports IVibrator only.
Test: Manual Execution
Change-Id: Iaaa2593e7926dc202a89a59c111869cd65f31332
Signed-off-by: Harpreet \"Eli\" Sangha <eliptus@google.com>
diff --git a/cmds/idlcli/vibrator.h b/cmds/idlcli/vibrator.h
new file mode 100644
index 0000000..bcb207b
--- /dev/null
+++ b/cmds/idlcli/vibrator.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#ifndef FRAMEWORK_NATIVE_CMDS_IDLCLI_VIBRATOR_H_
+#define FRAMEWORK_NATIVE_CMDS_IDLCLI_VIBRATOR_H_
+
+#include <android/hardware/vibrator/1.3/IVibrator.h>
+
+#include "utils.h"
+
+#include "log/log.h"
+
+namespace android {
+
+using hardware::Return;
+
+static constexpr int NUM_TRIES = 2;
+
+// Creates a Return<R> with STATUS::EX_NULL_POINTER.
+template <class R>
+inline Return<R> NullptrStatus() {
+ using ::android::hardware::Status;
+ return Return<R>{Status::fromExceptionCode(Status::EX_NULL_POINTER)};
+}
+
+template <typename I>
+class HalWrapper {
+public:
+ static std::unique_ptr<HalWrapper> Create() {
+ // Assume that if getService returns a nullptr, HAL is not available on the
+ // device.
+ auto hal = I::getService();
+ return hal ? std::unique_ptr<HalWrapper>(new HalWrapper(std::move(hal))) : nullptr;
+ }
+
+ template <class R, class... Args0, class... Args1>
+ Return<R> call(Return<R> (I::*fn)(Args0...), Args1&&... args1) {
+ return (*mHal.*fn)(std::forward<Args1>(args1)...);
+ }
+
+private:
+ HalWrapper(sp<I>&& hal) : mHal(std::move(hal)) {}
+
+private:
+ sp<I> mHal;
+};
+
+template <typename I>
+static auto getHal() {
+ static auto sHalWrapper = HalWrapper<I>::Create();
+ return sHalWrapper.get();
+}
+
+template <class R, class I, class... Args0, class... Args1>
+Return<R> halCall(Return<R> (I::*fn)(Args0...), Args1&&... args1) {
+ auto hal = getHal<I>();
+ return hal ? hal->call(fn, std::forward<Args1>(args1)...) : NullptrStatus<R>();
+}
+
+namespace idlcli {
+namespace vibrator {
+
+namespace V1_0 = ::android::hardware::vibrator::V1_0;
+namespace V1_1 = ::android::hardware::vibrator::V1_1;
+namespace V1_2 = ::android::hardware::vibrator::V1_2;
+namespace V1_3 = ::android::hardware::vibrator::V1_3;
+
+} // namespace vibrator
+} // namespace idlcli
+
+} // namespace android
+
+#endif // FRAMEWORK_NATIVE_CMDS_IDLCLI_VIBRATOR_H_