From 28feb283f30267593ed4108a9b34fa58d74e8d12 Mon Sep 17 00:00:00 2001
From: Edwin <edwinwong@google.com>
Date: Sat, 5 Mar 2022 07:06:10 -0800
Subject: [PATCH] Add lazy service for Widevine AIDL HAL.

Merged from http://go/wvgerrit/147329

Test: atest VtsAidlHalDrmTargetTest
Test: atest GtsMediaTestCases

Bug: 221078453
Change-Id: I4345816f18c44de4187f03a087d58e890a6d6b01
---
 libwvdrmengine/Android.bp                     | 19 +++++++++
 ...roid.hardware.drm-service-lazy.widevine.rc | 12 ++++++
 libwvdrmengine/aidl_src/serviceLazy.cpp       | 42 +++++++++++++++++++
 3 files changed, 73 insertions(+)
 create mode 100644 libwvdrmengine/aidl_src/android.hardware.drm-service-lazy.widevine.rc
 create mode 100644 libwvdrmengine/aidl_src/serviceLazy.cpp

diff --git a/libwvdrmengine/Android.bp b/libwvdrmengine/Android.bp
index 0d0cf195..b1e09b7a 100644
--- a/libwvdrmengine/Android.bp
+++ b/libwvdrmengine/Android.bp
@@ -268,6 +268,25 @@ cc_binary {
 
 }
 
+// ----------------------------------------------------------------------------
+// Builds android.hardware.drm-service-lazy.widevine
+//
+cc_binary {
+    name: "android.hardware.drm-service-lazy.widevine",
+    defaults: [
+        "common_widevine_service-multilib-first",
+        "common_widevine_service-multilib-defaults-aidl",
+    ],
+
+    srcs: ["aidl_src/serviceLazy.cpp"],
+
+    shared_libs: ["libbinder"],
+
+    init_rc: ["aidl_src/android.hardware.drm-service-lazy.widevine.rc"],
+    vintf_fragments: ["manifest_android.hardware.drm-service.widevine.xml"],
+
+}
+
 // ----------------------------------------------------------------------------
 // Builds libcdm_utils.a and libcdm_utils_hidl.a
 //
diff --git a/libwvdrmengine/aidl_src/android.hardware.drm-service-lazy.widevine.rc b/libwvdrmengine/aidl_src/android.hardware.drm-service-lazy.widevine.rc
new file mode 100644
index 00000000..0794f8e7
--- /dev/null
+++ b/libwvdrmengine/aidl_src/android.hardware.drm-service-lazy.widevine.rc
@@ -0,0 +1,12 @@
+on property:init.svc.mediadrm=running
+    mkdir /data/vendor/mediadrm 0770 media mediadrm
+
+service vendor.drm-widevine-hal /vendor/bin/hw/android.hardware.drm-service-lazy.widevine
+    interface aidl android.hardware.drm.IDrmFactory/widevine
+    oneshot
+    disabled
+    class hal
+    user media
+    group media mediadrm drmrpc system
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks
diff --git a/libwvdrmengine/aidl_src/serviceLazy.cpp b/libwvdrmengine/aidl_src/serviceLazy.cpp
new file mode 100644
index 00000000..33a082ad
--- /dev/null
+++ b/libwvdrmengine/aidl_src/serviceLazy.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2022 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 "WidevineAidlService"
+
+#include <android-base/logging.h>
+#include <android/binder_ibinder_platform.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <binder/ProcessState.h>
+
+#include "WVCreatePluginFactories.h"
+#include "WVDrmFactory.h"
+
+using ::wvdrm::hardware::drm::widevine::createDrmFactory;
+using ::wvdrm::hardware::drm::widevine::WVDrmFactory;
+
+int main(int /* argc */, char** /* argv */) {
+  ABinderProcess_setThreadPoolMaxThreadCount(8);
+
+  std::shared_ptr<WVDrmFactory> drmFactory = createDrmFactory();
+  const std::string drmInstance =
+      std::string(WVDrmFactory::descriptor) + "/widevine";
+  binder_status_t status = AServiceManager_registerLazyService(
+      drmFactory->asBinder().get(), drmInstance.c_str());
+  CHECK(status == STATUS_OK)
+      << "Failed to add Widevine Factory HAL, status=" << status;
+
+  ABinderProcess_joinThreadPool();
+}