libcore/impl.cpp

   1 // impl.cpp:  Implement ActionScript tags, movie loading, library, for Gnash.
   2 //
   3 //   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Free Software
   4 //   Foundation, Inc
   5 //
   6 // This program is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 3 of the License, or
   9 // (at your option) any later version.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the Free Software
  18 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19 //
  20
  21 #include "MovieFactory.h"
  22 #include "smart_ptr.h" // GNASH_USE_GC
  23 #include "IOChannel.h"
  24 #include "utility.h"
  25 #include "fontlib.h"
  26 #include "log.h"
  27 #include "GnashImage.h"
  28 #include "sprite_definition.h"
  29 #include "SWFMovieDefinition.h"
  30 #include "BitmapMovieDefinition.h"
  31 #include "RunResources.h"
  32 #include "URL.h"
  33 #include "StreamProvider.h"
  34 #include "MovieClip.h"
  35 #include "VM.h"
  36 #include "MovieLibrary.h"
  37 #include "gnash.h" // DSOEXPORTS
  38
  39 #ifdef GNASH_USE_GC
  40 #include "GC.h"
  41 #endif
  42
  43 #include <string>
  44 #include <map>
  45 #include <memory> // for auto_ptr
  46 #include <algorithm>
  47
  48 namespace gnash
  49 {
  50
  51 //
  52 // global gnash management
  53 //
  54
  55 // Maximum release of resources.
  56 void  clear()
  57 {
  58     // Ideally, we should make sure that function properly signals all threads
  59     // about exiting and giving them a chance to cleanly exit.
  60     //
  61     // If we clear shared memory here we're going to leave threads possibly
  62     // accessing deleted memory, which would trigger a segfault.
  63     //
  64     // My experience is that calling exit(), altought it has the same problem,
  65     // reduces the chances of segfaulting ...
  66     //
  67     // We want this fixed anyway as exit()
  68     // itselt can also trigger segfaults.
  69     //
  70     // See task task #6959 and depending items
  71     //
  72     log_debug("Any segfault past this message is likely due to improper "
  73             "threads cleanup.");
  74
  75     VM::get().clear();
  76
  77     MovieFactory::movieLibrary.clear();
  78     fontlib::clear();
  79
  80 #ifdef GNASH_USE_GC
  81     GC::get().fuzzyCollect(); // why would this be needed ?
  82
  83     GC::cleanup();
  84 #endif
  85
  86 }
  87
  88 #ifdef GNASH_USE_GC
  89 /// A GC root used to mark all reachable collectable pointers
  90 class GnashGcRoot : public GcRoot
  91 {
  92
  93 public:
  94
  95   GnashGcRoot()
  96   {
  97   }
  98
  99   void markReachableResources() const
 100   {
 101     VM::get().markReachableResources();
 102   }
 103 };
 104 #endif
 105
 106 void gnashInit()
 107 {
 108 #ifdef GNASH_USE_GC
 109   static GnashGcRoot gcRoot;
 110   GC::init(gcRoot);
 111 #endif
 112 }
 113
 114 } // namespace gnash
 115
 116 // Local Variables:
 117 // mode: C++
 118 // indent-tabs-mode: t
 119 // End: