Bug 1042691: Asynchronous init and cleanup of A2DP/AVRCP (under bluetooth2/), r=btian

dom/bluetooth2/bluedroid/BluetoothA2dpManager.cpp

@@ -492,6 +492,85 @@ static btrc_callbacks_t sBtAvrcpCallbacks = {
 };
 #endif
 
+#if ANDROID_VERSION > 17
+class InitAvrcpResultHandler MOZ_FINAL : public BluetoothAvrcpResultHandler
+{
+public:
+  InitAvrcpResultHandler(BluetoothProfileResultHandler* aRes)
+  : mRes(aRes)
+  { }
+
+  void OnError(bt_status_t aStatus) MOZ_OVERRIDE
+  {
+    BT_WARNING("BluetoothAvrcpInterface::Init failed: %d",
+               (int)aStatus);
+    if (mRes) {
+      mRes->OnError(NS_ERROR_FAILURE);
+    }
+  }
+
+  void Init() MOZ_OVERRIDE
+  {
+    if (mRes) {
+      mRes->Init();
+    }
+  }
+
+private:
+  nsRefPtr<BluetoothProfileResultHandler> mRes;
+};
+#endif
+
+class InitA2dpResultHandler MOZ_FINAL : public BluetoothA2dpResultHandler
+{
+public:
+  InitA2dpResultHandler(BluetoothProfileResultHandler* aRes)
+  : mRes(aRes)
+  { }
+
+  void OnError(bt_status_t aStatus) MOZ_OVERRIDE
+  {
+    BT_WARNING("BluetoothA2dpInterface::Init failed: %d",
+               (int)aStatus);
+    if (mRes) {
+      mRes->OnError(NS_ERROR_FAILURE);
+    }
+  }
+
+  void Init() MOZ_OVERRIDE
+  {
+#if ANDROID_VERSION > 17
+    /* Also init AVRCP if it's available, ... */
+    BluetoothInterface* btInf = BluetoothInterface::GetInstance();
+    if (!btInf) {
+      if (mRes) {
+        mRes->OnError(NS_ERROR_FAILURE);
+      }
+      return;
+    }
+
+    sBtAvrcpInterface = btInf->GetBluetoothAvrcpInterface();
+    if (!sBtAvrcpInterface) {
+      if (mRes) {
+        mRes->OnError(NS_ERROR_FAILURE);
+      }
+      return;
+    }
+
+    sBtAvrcpInterface->Init(&sBtAvrcpCallbacks,
+                            new InitAvrcpResultHandler(mRes));
+#else
+    /* ...or signal success otherwise. */
+    if (mRes) {
+      mRes->Init();
+    }
+#endif
+  }
+
+private:
+  nsRefPtr<BluetoothProfileResultHandler> mRes;
+};
+
 /*
  * This function will be only called when Bluetooth is turning on.
  * It is important to register a2dp callbacks before enable() gets called.
@@ -520,30 +599,7 @@ BluetoothA2dpManager::InitA2dpInterface(BluetoothProfileResultHandler* aRes)
     return;
   }
 
-  int ret = sBtA2dpInterface->Init(&sBtA2dpCallbacks);
-  if (ret != BT_STATUS_SUCCESS) {
-    BT_LOGR("Warning: failed to init a2dp module");
-  }
-
-#if ANDROID_VERSION > 17
-  sBtAvrcpInterface = btInf->GetBluetoothAvrcpInterface();
-  if (!sBtAvrcpInterface) {
-    BT_LOGR("Error: Bluetooth AVRCP interface not available");
-    if (aRes) {
-      aRes->OnError(NS_ERROR_FAILURE);
-    }
-    return;
-  }
-
-  ret = sBtAvrcpInterface->Init(&sBtAvrcpCallbacks);
-  if (ret != BT_STATUS_SUCCESS) {
-    BT_LOGR("Warning: failed to init avrcp module");
-  }
-#endif
-
-  if (aRes) {
-    aRes->Init();
-  }
+  sBtA2dpInterface->Init(&sBtA2dpCallbacks, new InitA2dpResultHandler(aRes));
 }
 
 BluetoothA2dpManager::~BluetoothA2dpManager()
@@ -617,6 +673,99 @@ BluetoothA2dpManager::Get()
   return sBluetoothA2dpManager;
 }
 
+#if ANDROID_VERSION > 17
+class CleanupAvrcpResultHandler MOZ_FINAL : public BluetoothAvrcpResultHandler
+{
+public:
+  CleanupAvrcpResultHandler(BluetoothProfileResultHandler* aRes)
+  : mRes(aRes)
+  { }
+
+  void OnError(bt_status_t aStatus) MOZ_OVERRIDE
+  {
+    BT_WARNING("BluetoothAvrcpInterface::Cleanup failed: %d",
+               (int)aStatus);
+    if (mRes) {
+      mRes->OnError(NS_ERROR_FAILURE);
+    }
+  }
+
+  void Cleanup() MOZ_OVERRIDE
+  {
+    sBtAvrcpInterface = nullptr;
+    if (mRes) {
+      mRes->Deinit();
+    }
+  }
+
+private:
+  nsRefPtr<BluetoothProfileResultHandler> mRes;
+};
+#endif
+
+class CleanupA2dpResultHandler MOZ_FINAL : public BluetoothA2dpResultHandler
+{
+public:
+  CleanupA2dpResultHandler(BluetoothProfileResultHandler* aRes)
+  : mRes(aRes)
+  { }
+
+  void OnError(bt_status_t aStatus) MOZ_OVERRIDE
+  {
+    BT_WARNING("BluetoothA2dpInterface::Cleanup failed: %d",
+               (int)aStatus);
+    if (mRes) {
+      mRes->OnError(NS_ERROR_FAILURE);
+    }
+  }
+
+  void Cleanup() MOZ_OVERRIDE
+  {
+    sBtA2dpInterface = nullptr;
+#if ANDROID_VERSION > 17
+    /* Cleanup AVRCP if it's available and initialized, ...*/
+    if (sBtAvrcpInterface) {
+      sBtAvrcpInterface->Cleanup(new CleanupAvrcpResultHandler(mRes));
+    } else
+#endif
+    if (mRes) {
+      /* ...or simply signal success from here. */
+      mRes->Deinit();
+    }
+  }
+
+private:
+  nsRefPtr<BluetoothProfileResultHandler> mRes;
+};
+
+class CleanupA2dpResultHandlerRunnable MOZ_FINAL : public nsRunnable
+{
+public:
+  CleanupA2dpResultHandlerRunnable(BluetoothProfileResultHandler* aRes)
+  : mRes(aRes)
+  { }
+
+  NS_IMETHOD Run() MOZ_OVERRIDE
+  {
+    sBtA2dpInterface = nullptr;
+#if ANDROID_VERSION > 17
+    /* Cleanup AVRCP if it's available and initialized, ...*/
+    if (sBtAvrcpInterface) {
+      sBtAvrcpInterface->Cleanup(new CleanupAvrcpResultHandler(mRes));
+    } else
+#endif
+    if (mRes) {
+      /* ...or simply signal success from here. */
+      mRes->Deinit();
+    }
+
+    return NS_OK;
+  }
+
+private:
+  nsRefPtr<BluetoothProfileResultHandler> mRes;
+};
+
 // static
 void
 BluetoothA2dpManager::DeinitA2dpInterface(BluetoothProfileResultHandler* aRes)
@@ -624,17 +773,14 @@ BluetoothA2dpManager::DeinitA2dpInterface(BluetoothProfileResultHandler* aRes)
   MOZ_ASSERT(NS_IsMainThread());
 
   if (sBtA2dpInterface) {
-    sBtA2dpInterface->Cleanup();
-    sBtA2dpInterface = nullptr;
-  }
-#if ANDROID_VERSION > 17
-  if (sBtAvrcpInterface) {
-    sBtAvrcpInterface->Cleanup();
-    sBtAvrcpInterface = nullptr;
-  }
-#endif
-  if (aRes) {
-    aRes->Deinit();
+    sBtA2dpInterface->Cleanup(new CleanupA2dpResultHandler(aRes));
+  } else if (aRes) {
+    // We dispatch a runnable here to make the profile resource handler
+    // behave as if A2DP was initialized.
+    nsRefPtr<nsRunnable> r = new CleanupA2dpResultHandlerRunnable(aRes);
+    if (NS_FAILED(NS_DispatchToMainThread(r))) {
+      BT_LOGR("Failed to dispatch cleanup-result-handler runnable");
+    }
   }
 }
 

dom/bluetooth2/bluedroid/BluetoothInterface.cpp

@@ -888,16 +888,27 @@ BluetoothA2dpInterface::BluetoothA2dpInterface(
 BluetoothA2dpInterface::~BluetoothA2dpInterface()
 { }
 
-bt_status_t
-BluetoothA2dpInterface::Init(btav_callbacks_t* aCallbacks)
+void
+BluetoothA2dpInterface::Init(btav_callbacks_t* aCallbacks,
+                             BluetoothA2dpResultHandler* aRes)
 {
-  return mInterface->init(aCallbacks);
+  bt_status_t status = mInterface->init(aCallbacks);
+
+  if (aRes) {
+    DispatchBluetoothA2dpResult(aRes, &BluetoothA2dpResultHandler::Init,
+                                status);
+  }
 }
 
 void
-BluetoothA2dpInterface::Cleanup()
+BluetoothA2dpInterface::Cleanup(BluetoothA2dpResultHandler* aRes)
 {
   mInterface->cleanup();
+
+  if (aRes) {
+    DispatchBluetoothA2dpResult(aRes, &BluetoothA2dpResultHandler::Cleanup,
+                                BT_STATUS_SUCCESS);
+  }
 }
 
 bt_status_t
@@ -969,16 +980,27 @@ BluetoothAvrcpInterface::BluetoothAvrcpInterface(
 BluetoothAvrcpInterface::~BluetoothAvrcpInterface()
 { }
 
-bt_status_t
-BluetoothAvrcpInterface::Init(btrc_callbacks_t* aCallbacks)
+void
+BluetoothAvrcpInterface::Init(btrc_callbacks_t* aCallbacks,
+                              BluetoothAvrcpResultHandler* aRes)
 {
-  return mInterface->init(aCallbacks);
+  bt_status_t status = mInterface->init(aCallbacks);
+
+  if (aRes) {
+    DispatchBluetoothAvrcpResult(aRes, &BluetoothAvrcpResultHandler::Init,
+                                 status);
+  }
 }
 
 void
-BluetoothAvrcpInterface::Cleanup()
+BluetoothAvrcpInterface::Cleanup(BluetoothAvrcpResultHandler* aRes)
 {
   mInterface->cleanup();
+
+  if (aRes) {
+    DispatchBluetoothAvrcpResult(aRes, &BluetoothAvrcpResultHandler::Cleanup,
+                                 BT_STATUS_SUCCESS);
+  }
 }
 
 bt_status_t

dom/bluetooth2/bluedroid/BluetoothInterface.h

@@ -204,8 +204,9 @@ class BluetoothA2dpInterface
 public:
   friend class BluetoothInterface;
 
-  bt_status_t Init(btav_callbacks_t *aCallbacks);
-  void        Cleanup();
+  void Init(btav_callbacks_t *aCallbacks,
+            BluetoothA2dpResultHandler* aRes);
+  void Cleanup(BluetoothA2dpResultHandler* aRes);
 
   bt_status_t Connect(bt_bdaddr_t *aBdAddr);
   bt_status_t Disconnect(bt_bdaddr_t *aBdAddr);
@@ -261,8 +262,9 @@ class BluetoothAvrcpInterface
 public:
   friend class BluetoothInterface;
 
-  bt_status_t Init(btrc_callbacks_t* aCallbacks);
-  void        Cleanup();
+  void Init(btrc_callbacks_t* aCallbacks,
+            BluetoothAvrcpResultHandler* aRes);
+  void Cleanup(BluetoothAvrcpResultHandler* aRes);
 
   bt_status_t GetPlayStatusRsp(btrc_play_status_t aPlayStatus,
                                uint32_t aSongLen, uint32_t aSongPos);