Merge "Create manager lib for StatsBootstrapAtomService"

libstats/bootstrap/Android.bp

@@ -0,0 +1,49 @@
+//
+// Copyright (C) 2021 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.
+//
+
+// =========================================================================
+// Native library that provide a client to StatsBootstrapAtomService.
+// This library should only be used by processes that start in the bootstrap namespace.
+// All other clients should use libstatssocket, provided by the statsd apex.
+// =========================================================================
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+cc_defaults {
+    name: "libstatsbootstrap_defaults",
+    srcs: [
+        "BootstrapClientInternal.cpp",
+        "StatsBootstrapAtomClient.cpp",
+    ],
+    cflags: [
+        "-Wall",
+        "-Werror",
+    ],
+    shared_libs: [
+        "libbinder",
+        "libutils",
+        "android.os.statsbootstrap_aidl-cpp",
+    ],
+}
+
+cc_library {
+    name: "libstatsbootstrap",
+    defaults: ["libstatsbootstrap_defaults"],
+    export_include_dirs: ["include"],
+}
+
+

libstats/bootstrap/BootstrapClientInternal.cpp

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2021 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 "BootstrapClientInternal.h"
+
+#include <binder/IServiceManager.h>
+
+namespace android {
+namespace os {
+namespace stats {
+
+sp<BootstrapClientInternal> BootstrapClientInternal::getInstance() {
+    static sp<BootstrapClientInternal> client = new BootstrapClientInternal();
+    return client;
+}
+
+sp<IStatsBootstrapAtomService> BootstrapClientInternal::getServiceNonBlocking() {
+    std::lock_guard<std::mutex> lock(mLock);
+    if (mService != nullptr) {
+        return mService;
+    }
+    connectNonBlockingLocked();
+    return mService;
+}
+
+void BootstrapClientInternal::binderDied(const wp<IBinder>&) {
+    std::lock_guard<std::mutex> lock(mLock);
+    mService = nullptr;
+    connectNonBlockingLocked();
+}
+
+void BootstrapClientInternal::connectNonBlockingLocked() {
+    const String16 name("statsbootstrap");
+    mService =
+            interface_cast<IStatsBootstrapAtomService>(defaultServiceManager()->checkService(name));
+    if (mService != nullptr) {
+        // Set up binder death.
+        IInterface::asBinder(mService)->linkToDeath(this);
+    }
+}
+
+}  // namespace stats
+}  // namespace os
+}  // namespace android

libstats/bootstrap/BootstrapClientInternal.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#pragma once
+
+#include <android/os/IStatsBootstrapAtomService.h>
+
+namespace android {
+namespace os {
+namespace stats {
+
+class BootstrapClientInternal : public IBinder::DeathRecipient {
+  public:
+    static sp<BootstrapClientInternal> getInstance();
+    void binderDied(const wp<IBinder>& who) override;
+    sp<IStatsBootstrapAtomService> getServiceNonBlocking();
+
+  private:
+    BootstrapClientInternal() {}
+    void connectNonBlockingLocked();
+
+    mutable std::mutex mLock;
+    sp<IStatsBootstrapAtomService> mService;
+};
+
+}  // namespace stats
+}  // namespace os
+}  // namespace android

libstats/bootstrap/StatsBootstrapAtomClient.cpp

@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2021 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 "include/StatsBootstrapAtomClient.h"
+
+#include <android/os/IStatsBootstrapAtomService.h>
+
+#include "BootstrapClientInternal.h"
+
+namespace android {
+namespace os {
+namespace stats {
+
+bool StatsBootstrapAtomClient::reportBootstrapAtom(const StatsBootstrapAtom& atom) {
+    sp<IStatsBootstrapAtomService> service =
+            BootstrapClientInternal::getInstance()->getServiceNonBlocking();
+    if (service == nullptr) {
+        return false;
+    }
+    return service->reportBootstrapAtom(atom).isOk();
+}
+
+}  // namespace stats
+}  // namespace os
+}  // namespace android

libstats/bootstrap/include/StatsBootstrapAtomClient.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#pragma once
+
+#include <android/os/StatsBootstrapAtom.h>
+
+namespace android {
+namespace os {
+namespace stats {
+
+class StatsBootstrapAtomClient {
+  public:
+    static bool reportBootstrapAtom(const StatsBootstrapAtom& atom);
+};
+
+}  // namespace stats
+}  // namespace os
+}  // namespace android