33 canceled(false), done(false) {
40 boost::recursive_mutex::scoped_lock lock(
mutex);
45 boost::recursive_mutex::scoped_lock lock(
mutex);
50 boost::recursive_mutex::scoped_lock lock(
mutex);
58 boost::recursive_mutex::scoped_lock lock(
mutex);
65 boost::recursive_mutex::scoped_lock lock(
mutex);