1 files changed, 142 insertions, 0 deletions
diff --git a/dom/media/gmp/GMPService.h b/dom/media/gmp/GMPService.h
new file mode 100644
index 000000000..7ed318a25
--- /dev/null
+++ b/dom/media/gmp/GMPService.h
@@ -0,0 +1,142 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GMPService_h_
+#define GMPService_h_
+
+#include "nsString.h"
+#include "mozIGeckoMediaPluginService.h"
+#include "nsIObserver.h"
+#include "nsTArray.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/Monitor.h"
+#include "nsString.h"
+#include "nsCOMPtr.h"
+#include "nsIThread.h"
+#include "nsThreadUtils.h"
+#include "nsPIDOMWindow.h"
+#include "nsIDocument.h"
+#include "nsIWeakReference.h"
+#include "mozilla/AbstractThread.h"
+#include "nsClassHashtable.h"
+#include "nsISupportsImpl.h"
+
+template <class> struct already_AddRefed;
+
+// For every GMP actor requested, the caller can specify a crash helper,
+// which is an object which supplies the nsPIDOMWindowInner to which we'll
+// dispatch the PluginCrashed event if the GMP crashes.
+// GMPCrashHelper has threadsafe refcounting. Its release method ensures
+// that instances are destroyed on the main thread.
+class GMPCrashHelper
+{
+public:
+  NS_METHOD_(MozExternalRefCountType) AddRef(void);
+  NS_METHOD_(MozExternalRefCountType) Release(void);
+
+  // Called on the main thread.
+  virtual already_AddRefed<nsPIDOMWindowInner> GetPluginCrashedEventTarget() = 0;
+
+protected:
+  virtual ~GMPCrashHelper()
+  {
+    MOZ_ASSERT(NS_IsMainThread());
+  }
+  void Destroy();
+  mozilla::ThreadSafeAutoRefCnt mRefCnt;
+  NS_DECL_OWNINGTHREAD
+};
+
+namespace mozilla {
+
+extern LogModule* GetGMPLog();
+
+namespace gmp {
+
+class GetGMPContentParentCallback;
+
+class GeckoMediaPluginService : public mozIGeckoMediaPluginService
+                              , public nsIObserver
+{
+public:
+  static already_AddRefed<GeckoMediaPluginService> GetGeckoMediaPluginService();
+
+  virtual nsresult Init();
+
+  NS_DECL_THREADSAFE_ISUPPORTS
+
+  // mozIGeckoMediaPluginService
+  NS_IMETHOD GetThread(nsIThread** aThread) override;
+  NS_IMETHOD GetDecryptingGMPVideoDecoder(GMPCrashHelper* aHelper,
+                                          nsTArray<nsCString>* aTags,
+                                          const nsACString& aNodeId,
+                                          UniquePtr<GetGMPVideoDecoderCallback>&& aCallback,
+                                          uint32_t aDecryptorId)
+    override;
+  NS_IMETHOD GetGMPVideoEncoder(GMPCrashHelper* aHelper,
+                                nsTArray<nsCString>* aTags,
+                                const nsACString& aNodeId,
+                                UniquePtr<GetGMPVideoEncoderCallback>&& aCallback)
+    override;
+  NS_IMETHOD GetGMPAudioDecoder(GMPCrashHelper* aHelper,
+                                nsTArray<nsCString>* aTags,
+                                const nsACString& aNodeId,
+                                UniquePtr<GetGMPAudioDecoderCallback>&& aCallback)
+    override;
+  NS_IMETHOD GetGMPDecryptor(GMPCrashHelper* aHelper,
+                             nsTArray<nsCString>* aTags,
+                             const nsACString& aNodeId,
+                             UniquePtr<GetGMPDecryptorCallback>&& aCallback)
+    override;
+
+  // Helper for backwards compatibility with WebRTC/tests.
+  NS_IMETHOD
+  GetGMPVideoDecoder(GMPCrashHelper* aHelper,
+                     nsTArray<nsCString>* aTags,
+                     const nsACString& aNodeId,
+                     UniquePtr<GetGMPVideoDecoderCallback>&& aCallback) override
+  {
+    return GetDecryptingGMPVideoDecoder(aHelper, aTags, aNodeId, Move(aCallback), 0);
+  }
+
+  int32_t AsyncShutdownTimeoutMs();
+
+  NS_IMETHOD RunPluginCrashCallbacks(uint32_t aPluginId,
+                                     const nsACString& aPluginName) override;
+
+  RefPtr<AbstractThread> GetAbstractGMPThread();
+
+  void ConnectCrashHelper(uint32_t aPluginId, GMPCrashHelper* aHelper);
+  void DisconnectCrashHelper(GMPCrashHelper* aHelper);
+
+protected:
+  GeckoMediaPluginService();
+  virtual ~GeckoMediaPluginService();
+
+  virtual void InitializePlugins(AbstractThread* aAbstractGMPThread) = 0;
+  virtual bool GetContentParentFrom(GMPCrashHelper* aHelper,
+                                    const nsACString& aNodeId,
+                                    const nsCString& aAPI,
+                                    const nsTArray<nsCString>& aTags,
+                                    UniquePtr<GetGMPContentParentCallback>&& aCallback) = 0;
+
+  nsresult GMPDispatch(nsIRunnable* event, uint32_t flags = NS_DISPATCH_NORMAL);
+  nsresult GMPDispatch(already_AddRefed<nsIRunnable> event, uint32_t flags = NS_DISPATCH_NORMAL);
+  void ShutdownGMPThread();
+
+  Mutex mMutex; // Protects mGMPThread, mAbstractGMPThread, mPluginCrashHelpers,
+                // mGMPThreadShutdown and some members in derived classes.
+  nsCOMPtr<nsIThread> mGMPThread;
+  RefPtr<AbstractThread> mAbstractGMPThread;
+  bool mGMPThreadShutdown;
+  bool mShuttingDownOnGMPThread;
+
+  nsClassHashtable<nsUint32HashKey, nsTArray<RefPtr<GMPCrashHelper>>> mPluginCrashHelpers;
+};
+
+} // namespace gmp
+} // namespace mozilla
+
+#endif // GMPService_h_