aaudio: close MMAP stream if client dies
Notify client when audio service dies. Clear connection.
Notify AAudio service when client dies. Close client streams.
Use sp<> to track ServiceStreams.
Bug: 38267698
Test: test_no_close.cpp
Change-Id: I5f1699ed3b8b7bd960947c0028a89ca8419ce7a0
diff --git a/services/oboeservice/AAudioClientTracker.h b/services/oboeservice/AAudioClientTracker.h
new file mode 100644
index 0000000..447665b
--- /dev/null
+++ b/services/oboeservice/AAudioClientTracker.h
@@ -0,0 +1,81 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_AAUDIO_AAUDIO_CLIENT_TRACKER_H
+#define ANDROID_AAUDIO_AAUDIO_CLIENT_TRACKER_H
+
+#include <map>
+#include <mutex>
+#include <set>
+
+#include <utils/Singleton.h>
+
+#include <aaudio/AAudio.h>
+#include "binding/IAAudioClient.h"
+#include "AAudioService.h"
+
+namespace aaudio {
+
+class AAudioClientTracker : public android::Singleton<AAudioClientTracker>{
+public:
+ AAudioClientTracker();
+ ~AAudioClientTracker() = default;
+
+ aaudio_result_t registerClient(pid_t pid, const android::sp<android::IAAudioClient>& client);
+
+ void unregisterClient(pid_t pid);
+
+ aaudio_result_t registerClientStream(pid_t pid,
+ android::sp<AAudioServiceStreamBase> serviceStream);
+
+ aaudio_result_t unregisterClientStream(pid_t pid,
+ android::sp<AAudioServiceStreamBase> serviceStream);
+
+ android::AAudioService *getAAudioService() const {
+ return mAAudioService;
+ }
+
+ void setAAudioService(android::AAudioService *aaudioService) {
+ mAAudioService = aaudioService;
+ }
+
+private:
+ class NotificationClient : public IBinder::DeathRecipient {
+ public:
+ NotificationClient(pid_t pid);
+ virtual ~NotificationClient();
+
+ aaudio_result_t registerClientStream(android::sp<AAudioServiceStreamBase> serviceStream);
+
+ aaudio_result_t unregisterClientStream(android::sp<AAudioServiceStreamBase> serviceStream);
+
+ // IBinder::DeathRecipient
+ virtual void binderDied(const android::wp<IBinder>& who);
+
+ protected:
+ std::mutex mLock;
+ const pid_t mProcessId;
+ std::set<android::sp<AAudioServiceStreamBase>> mStreams;
+ };
+
+ std::mutex mLock;
+ std::map<pid_t, android::sp<NotificationClient>> mNotificationClients;
+ android::AAudioService *mAAudioService = nullptr;
+};
+
+} /* namespace aaudio */
+
+#endif //ANDROID_AAUDIO_AAUDIO_CLIENT_TRACKER_H