xbmc/DynamicDll.cpp

   1 /*
   2  *  Copyright (C) 2005-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #include "DynamicDll.h"
  10
  11 #include "SectionLoader.h"
  12 #include "utils/FileUtils.h"
  13 #include "utils/log.h"
  14
  15 DllDynamic::DllDynamic()
  16 {
  17   m_dll=NULL;
  18   m_DelayUnload=true;
  19 }
  20
  21 DllDynamic::DllDynamic(const std::string& strDllName):
  22   m_strDllName(strDllName)
  23 {
  24   m_dll=NULL;
  25   m_DelayUnload=true;
  26 }
  27
  28 DllDynamic::~DllDynamic()
  29 {
  30   Unload();
  31 }
  32
  33 bool DllDynamic::Load()
  34 {
  35   if (m_dll)
  36     return true;
  37
  38   if (!(m_dll=CSectionLoader::LoadDLL(m_strDllName, m_DelayUnload, LoadSymbols())))
  39     return false;
  40
  41   if (!ResolveExports())
  42   {
  43     CLog::Log(LOGERROR, "Unable to resolve exports from dll {}", m_strDllName);
  44     Unload();
  45     return false;
  46   }
  47
  48   return true;
  49 }
  50
  51 void DllDynamic::Unload()
  52 {
  53   if(m_dll)
  54     CSectionLoader::UnloadDLL(m_strDllName);
  55   m_dll=NULL;
  56 }
  57
  58 bool DllDynamic::CanLoad()
  59 {
  60   return CFileUtils::Exists(m_strDllName);
  61 }
  62
  63 bool DllDynamic::EnableDelayedUnload(bool bOnOff)
  64 {
  65   if (m_dll)
  66     return false;
  67
  68   m_DelayUnload=bOnOff;
  69
  70   return true;
  71 }
  72
  73 bool DllDynamic::SetFile(const std::string& strDllName)
  74 {
  75   if (m_dll)
  76     return false;
  77
  78   m_strDllName=strDllName;
  79   return true;
  80 }
  81