src/visualizer/ArtisanWrapper.cpp

   1 /** Aesalon, a tool to visualize program behaviour in real time.
   2         Copyright (C) 2009-2011, Aesalon development team.
   3
   4         Aesalon is distributed under the terms of the GNU GPLv3. See
   5         the included file LICENSE for more information.
   6
   7         @file src/visualizer/ArtisanWrapper.cpp
   8 */
   9
  10 #include <dlfcn.h>
  11
  12 #include "visualizer/ArtisanWrapper.h"
  13 #include "config/GlobalVault.h"
  14 #include "util/MessageSystem.h"
  15
  16 namespace Visualizer {
  17
  18 ArtisanWrapper::ArtisanWrapper(Artisan::Interface *interface) : m_interface(interface) {
  19
  20 }
  21
  22 ArtisanWrapper::ArtisanWrapper(const std::string &name) : m_interface(NULL) {
  23         load(name);
  24 }
  25
  26 ArtisanWrapper::~ArtisanWrapper() {
  27
  28 }
  29
  30 void ArtisanWrapper::load(const std::string &name) {
  31         std::string modulePath = Config::GlobalVault::instance()->get(name + ":root") +
  32                 Config::GlobalVault::instance()->get(name + ":artisanPath");
  33
  34         m_handle = dlopen(modulePath.c_str(), RTLD_NOW | RTLD_LOCAL);
  35         if(m_handle == NULL) {
  36                 Message(Warning, "Could not open artisan library for module \"" << name << "\":" << dlerror());
  37                 return;
  38         }
  39         Artisan::Interface *(*instantiate)();
  40
  41         *(void **) (&instantiate) = dlsym(m_handle, "AA_Instantiate");
  42
  43         if(instantiate == NULL) {
  44                 Message(Warning, "Could not find AA_Instantiate in " << name << "'s artisan.");
  45                 return;
  46         }
  47
  48         m_interface = instantiate();
  49 }
  50
  51 } // namespace Visualizer