xpcom/components/nsNativeComponentLoader.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 "nsISupports.h"
  10 #include "mozilla/ModuleLoader.h"
  11 #include "nsDataHashtable.h"
  12 #include "nsHashKeys.h"
  13 #include "mozilla/Module.h"
  14 #include "prlink.h"
  15
  16 class nsNativeModuleLoader : public mozilla::ModuleLoader
  17 {
  18  public:
  19     NS_DECL_ISUPPORTS_INHERITED
  20
  21     nsNativeModuleLoader() {}
  22     ~nsNativeModuleLoader() {}
  23
  24     virtual const mozilla::Module* LoadModule(mozilla::FileLocation &aFile) MOZ_OVERRIDE;
  25
  26     nsresult Init();
  27
  28     void UnloadLibraries();
  29
  30  private:
  31     struct NativeLoadData
  32     {
  33         NativeLoadData()
  34             : module(NULL)
  35             , library(NULL)
  36         { }
  37
  38         const mozilla::Module* module;
  39         PRLibrary* library;
  40     };
  41
  42     static PLDHashOperator
  43     ReleaserFunc(nsIHashable* aHashedFile, NativeLoadData &aLoadData, void*);
  44
  45     static PLDHashOperator
  46     UnloaderFunc(nsIHashable* aHashedFile, NativeLoadData &aLoadData, void*);
  47
  48     nsDataHashtable<nsHashableHashKey, NativeLoadData> mLibraries;
  49 };
  50
  51 #endif /* nsNativeModuleLoader_h__ */