desktop/src/dlopen.cc

   1 ///
   2 /// \file       dlopen.cc
   3 ///             Base class wrapper for dlopen() behaviour
   4 ///
   5
   6 /*
   7     Copyright (C) 2009-2012, Net Direct Inc. (http://www.netdirect.ca/)
   8
   9     This program is free software; you can redistribute it and/or modify
  10     it under the terms of the GNU General Public License as published by
  11     the Free Software Foundation; either version 2 of the License, or
  12     (at your option) any later version.
  13
  14     This program is distributed in the hope that it will be useful,
  15     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  17
  18     See the GNU General Public License in the COPYING file at the
  19     root directory of this project for more details.
  20 */
  21
  22 #include "dlopen.h"
  23 #include <iostream>
  24 #include <stdexcept>
  25 #include <string>
  26 #include <dlfcn.h>
  27 #include <string.h>
  28
  29 using namespace std;
  30
  31 /////////////////////////////////////////////////////////////////////////////
  32 // DlOpen class -- protected members
  33
  34 bool DlOpen::Open(const char *libname)
  35 {
  36         Shutdown();
  37         m_handle = dlopen(libname, RTLD_NOW | RTLD_LOCAL);
  38         return m_handle != NULL;
  39 }
  40
  41 void DlOpen::Shutdown()
  42 {
  43         if( m_handle ) {
  44                 if( dlclose(m_handle) != 0 ) {
  45                         cout << "ERROR: dlclose() return non-zero" << endl;
  46                         cout << dlerror() << endl;
  47                 }
  48                 m_handle = 0;
  49         }
  50 }
  51
  52
  53 /////////////////////////////////////////////////////////////////////////////
  54 // DlOpen class -- public members
  55
  56 DlOpen::DlOpen()
  57         : m_handle(0)
  58 {
  59 }
  60
  61 DlOpen::~DlOpen()
  62 {
  63         Shutdown();
  64 }
  65