cygnal/alloc.cpp

   1 //
   2 //   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Free Software
   3 //   Foundation, Inc
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18 //
  19
  20 /// This defines thread safe new/delete operators
  21 #include <new>
  22 #include <boost/thread/mutex.hpp>
  23
  24 static boost::mutex mem_mutex;
  25
  26 #if 0
  27 // Wrap new in a mutex, because it is not thread safe.
  28 void *
  29 operator new (std::size_t bytes) throw (std::bad_alloc) {
  30     boost::mutex::scoped_lock lock(mem_mutex);
  31     void *ptr = malloc (bytes);
  32     return ptr;
  33 }
  34
  35 // Wrap delete in a mutex, because it is not thread safe.
  36 void
  37 operator delete (void* vptr) throw () {
  38     boost::mutex::scoped_lock lock(mem_mutex);
  39     free (vptr);
  40 }
  41 #endif
  42
  43 // local Variables:
  44 // mode: C++
  45 // indent-tabs-mode: t
  46 // End: