| // Boost.Signals library |
| |
| // Copyright Douglas Gregor 2001-2004. Use, modification and |
| // distribution is subject to the Boost Software License, Version |
| // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| // For more information, see http://www.boost.org |
| |
| #define BOOST_SIGNALS_SOURCE |
| |
| #include <boost/signals/connection.hpp> |
| #include <cassert> |
| |
| namespace boost { |
| namespace BOOST_SIGNALS_NAMESPACE { |
| |
| connection::connection(const connection& other) : |
| con(other.con), controlling_connection(other.controlling_connection) |
| { |
| } |
| |
| connection::~connection() |
| { |
| if (controlling_connection) { |
| disconnect(); |
| } |
| } |
| |
| void |
| connection::reset(BOOST_SIGNALS_NAMESPACE::detail::basic_connection* new_con) |
| { |
| con.reset(new_con); |
| } |
| |
| bool connection::operator==(const connection& other) const |
| { |
| return con.get() == other.con.get(); |
| } |
| |
| bool connection::operator<(const connection& other) const |
| { |
| return con.get() < other.con.get(); |
| } |
| |
| connection& connection::operator=(const connection& other) |
| { |
| connection(other).swap(*this); |
| return *this; |
| } |
| |
| void connection::swap(connection& other) |
| { |
| this->con.swap(other.con); |
| std::swap(this->controlling_connection, other.controlling_connection); |
| } |
| |
| void swap(connection& c1, connection& c2) |
| { |
| c1.swap(c2); |
| } |
| |
| scoped_connection::scoped_connection(const connection& other) : |
| connection(other), |
| released(false) |
| { |
| } |
| |
| scoped_connection::scoped_connection(const scoped_connection& other) : |
| connection(other), |
| released(other.released) |
| { |
| } |
| |
| scoped_connection::~scoped_connection() |
| { |
| if (!released) { |
| this->disconnect(); |
| } |
| } |
| |
| connection scoped_connection::release() |
| { |
| released = true; |
| return *this; |
| } |
| |
| void scoped_connection::swap(scoped_connection& other) |
| { |
| this->connection::swap(other); |
| bool other_released = other.released; |
| other.released = this->released; |
| this->released = other_released; |
| } |
| |
| void swap(scoped_connection& c1, scoped_connection& c2) |
| { |
| c1.swap(c2); |
| } |
| |
| scoped_connection& |
| scoped_connection::operator=(const connection& other) |
| { |
| scoped_connection(other).swap(*this); |
| return *this; |
| } |
| |
| scoped_connection& |
| scoped_connection::operator=(const scoped_connection& other) |
| { |
| scoped_connection(other).swap(*this); |
| return *this; |
| } |
| |
| void |
| connection::add_bound_object(const BOOST_SIGNALS_NAMESPACE::detail::bound_object& b) |
| { |
| assert(con.get() != 0); |
| con->bound_objects.push_back(b); |
| } |
| |
| |
| void connection::disconnect() const |
| { |
| if (this->connected()) { |
| // Make sure we have a reference to the basic_connection object, |
| // because 'this' may disappear |
| shared_ptr<detail::basic_connection> local_con = con; |
| |
| void (*signal_disconnect)(void*, void*) = local_con->signal_disconnect; |
| |
| // Note that this connection no longer exists |
| // Order is important here: we could get into an infinite loop if this |
| // isn't cleared before we try the disconnect. |
| local_con->signal_disconnect = 0; |
| |
| // Disconnect signal |
| signal_disconnect(local_con->signal, local_con->signal_data); |
| |
| // Disconnect all bound objects |
| typedef std::list<BOOST_SIGNALS_NAMESPACE::detail::bound_object>::iterator iterator; |
| for (iterator i = local_con->bound_objects.begin(); |
| i != local_con->bound_objects.end(); ++i) { |
| assert(i->disconnect != 0); |
| i->disconnect(i->obj, i->data); |
| } |
| } |
| } |
| } // end namespace boost |
| } // end namespace boost |
| |
| #ifndef BOOST_MSVC |
| // Explicit instantiations to keep everything in the library |
| template class std::list<boost::BOOST_SIGNALS_NAMESPACE::detail::bound_object>; |
| #endif |