Widevine MediaCas client code that works with Android R

wvutil/src/timer.cpp

@@ -0,0 +1,104 @@
+// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
+// source code may only be used and distributed under the Widevine Master
+// License Agreement.
+//
+// Timer class - provides a simple Android specific timer implementation
+
+#include "timer.h"
+
+#include <unistd.h>
+
+#include <utils/Mutex.h>
+#include <utils/RefBase.h>
+#include <utils/StrongPointer.h>
+#include <utils/Thread.h>
+
+namespace wvutil {
+
+class Timer::Impl : virtual public android::RefBase {
+ private:
+  class ImplThread : public android::Thread {
+   public:
+    ImplThread() : Thread(false), handler_(NULL), period_ns_(0) {}
+    virtual ~ImplThread() {};
+
+    bool Start(TimerHandler *handler, uint32_t time_in_secs) {
+      handler_ = handler;
+      period_ns_ = time_in_secs * 1000000000ll;
+      return run("wvutil::Timer::Impl") == android::NO_ERROR;
+    }
+
+   void Stop() {
+     {
+         android::Mutex::Autolock autoLock(lock_);
+         stop_condition_.signal();
+     }
+     requestExitAndWait();
+   }
+
+   private:
+    virtual bool threadLoop() {
+      android::Mutex::Autolock autoLock(lock_);
+      stop_condition_.waitRelative(lock_, period_ns_);
+      handler_->OnTimerEvent();
+      return true;
+    }
+
+    TimerHandler *handler_;
+    uint64_t period_ns_;
+    android::Mutex lock_;
+    android::Condition stop_condition_;
+
+    CORE_DISALLOW_COPY_AND_ASSIGN(ImplThread);
+  };
+
+  android::sp<ImplThread> impl_thread_;
+
+ public:
+  Impl() {}
+  virtual ~Impl() {};
+
+  bool Start(TimerHandler *handler, uint32_t time_in_secs) {
+    impl_thread_ = new ImplThread();
+    return impl_thread_->Start(handler, time_in_secs);
+  }
+
+  void Stop() {
+    impl_thread_->Stop();
+    impl_thread_.clear();
+  }
+
+  bool IsRunning() {
+    return (impl_thread_ != NULL) && (impl_thread_->isRunning());
+  }
+
+  CORE_DISALLOW_COPY_AND_ASSIGN(Impl);
+};
+
+Timer::Timer() : impl_(new Timer::Impl()) {
+}
+
+Timer::~Timer() {
+  if (IsRunning())
+    Stop();
+
+  delete impl_;
+  impl_ = NULL;
+}
+
+bool Timer::Start(TimerHandler *handler, uint32_t time_in_secs) {
+  if (!handler || time_in_secs == 0)
+    return false;
+
+  return impl_->Start(handler, time_in_secs);
+}
+
+void Timer::Stop() {
+  impl_->Stop();
+}
+
+bool Timer::IsRunning() {
+  return impl_->IsRunning();
+}
+
+} // namespace wvutil