xpcom/components/nsNativeModuleLoader.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   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 nsNativeModuleLoader_h__
   7 #define nsNativeModuleLoader_h__
   8
   9 #include "nsDataHashtable.h"
  10 #include "nsHashKeys.h"
  11 #include "prlink.h"
  12
  13 namespace mozilla {
  14 class FileLocation;
  15 }
  16
  17 class nsNativeModuleLoader final
  18 {
  19 public:
  20   const mozilla::Module* LoadModule(mozilla::FileLocation& aFile);
  21
  22   nsresult Init();
  23
  24   void UnloadLibraries();
  25
  26 private:
  27   struct NativeLoadData
  28   {
  29     NativeLoadData() : mModule(nullptr), mLibrary(nullptr) {}
  30
  31     const mozilla::Module* mModule;
  32     PRLibrary* mLibrary;
  33   };
  34
  35   static PLDHashOperator
  36   ReleaserFunc(nsIHashable* aHashedFile, NativeLoadData& aLoadData, void*);
  37
  38   static PLDHashOperator
  39   UnloaderFunc(nsIHashable* aHashedFile, NativeLoadData& aLoadData, void*);
  40
  41   nsDataHashtable<nsHashableHashKey, NativeLoadData> mLibraries;
  42 };
  43
  44 #endif /* nsNativeModuleLoader_h__ */