dom/workers/WorkerDebuggerManager.h

   1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef mozilla_dom_workers_workerdebuggermanager_h
   7 #define mozilla_dom_workers_workerdebuggermanager_h
   8
   9 #include "Workers.h"
  10
  11 #include "nsIWorkerDebuggerManager.h"
  12
  13 #include "nsServiceManagerUtils.h"
  14 #include "nsTArray.h"
  15
  16 #define WORKERDEBUGGERMANAGER_CID \
  17   { 0x62ec8731, 0x55ad, 0x4246, \
  18     { 0xb2, 0xea, 0xf2, 0x6c, 0x1f, 0xe1, 0x9d, 0x2d } }
  19 #define WORKERDEBUGGERMANAGER_CONTRACTID \
  20   "@mozilla.org/dom/workers/workerdebuggermanager;1"
  21
  22 class RegisterDebuggerRunnable;
  23
  24 BEGIN_WORKERS_NAMESPACE
  25
  26 class WorkerDebugger;
  27
  28 class WorkerDebuggerManager MOZ_FINAL : public nsIWorkerDebuggerManager
  29 {
  30   friend class ::RegisterDebuggerRunnable;
  31
  32   mozilla::Mutex mMutex;
  33
  34   // Protected by mMutex.
  35   nsTArray<nsCOMPtr<nsIWorkerDebuggerManagerListener>> mListeners;
  36
  37   // Only touched on the main thread.
  38   nsTArray<WorkerDebugger*> mDebuggers;
  39
  40 public:
  41   static WorkerDebuggerManager*
  42   GetOrCreateService()
  43   {
  44     nsCOMPtr<nsIWorkerDebuggerManager> wdm =
  45       do_GetService(WORKERDEBUGGERMANAGER_CONTRACTID);
  46     return static_cast<WorkerDebuggerManager*>(wdm.get());
  47   }
  48
  49   WorkerDebuggerManager();
  50
  51   NS_DECL_THREADSAFE_ISUPPORTS
  52   NS_DECL_NSIWORKERDEBUGGERMANAGER
  53
  54   void RegisterDebugger(WorkerDebugger* aDebugger);
  55
  56   void UnregisterDebugger(WorkerDebugger* aDebugger);
  57
  58 private:
  59   virtual ~WorkerDebuggerManager();
  60
  61   void RegisterDebuggerOnMainThread(WorkerDebugger* aDebugger,
  62                                     bool aHasListeners);
  63
  64   void UnregisterDebuggerOnMainThread(WorkerDebugger* aDebugger);
  65 };
  66
  67 inline nsresult
  68 RegisterWorkerDebugger(WorkerDebugger* aDebugger)
  69 {
  70   nsRefPtr<WorkerDebuggerManager> manager =
  71     WorkerDebuggerManager::GetOrCreateService();
  72   if (!manager) {
  73     return NS_ERROR_FAILURE;
  74   }
  75
  76   manager->RegisterDebugger(aDebugger);
  77   return NS_OK;
  78 }
  79
  80 inline nsresult
  81 UnregisterWorkerDebugger(WorkerDebugger* aDebugger)
  82 {
  83   nsRefPtr<WorkerDebuggerManager> manager =
  84     WorkerDebuggerManager::GetOrCreateService();
  85   if (!manager) {
  86     return NS_ERROR_FAILURE;
  87   }
  88
  89   manager->UnregisterDebugger(aDebugger);
  90   return NS_OK;
  91 }
  92
  93 END_WORKERS_NAMESPACE
  94
  95 #endif // mozilla_dom_workers_workerdebuggermanager_h