Added boost::signals files

libs/signals/src/connection.cpp

@@ -0,0 +1,155 @@
+// 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

libs/signals/src/named_slot_map.cpp

@@ -0,0 +1,134 @@
+// 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/detail/named_slot_map.hpp>
+#include <cassert>
+#include <map>
+#include <list>
+#include <typeinfo>
+
+namespace boost { namespace BOOST_SIGNALS_NAMESPACE { namespace detail {
+
+typedef std::list<connection_slot_pair> group_list;
+typedef group_list::iterator slot_pair_iterator;
+typedef std::map<stored_group, group_list, compare_type> slot_container_type;
+typedef slot_container_type::iterator group_iterator;
+typedef slot_container_type::const_iterator const_group_iterator;
+
+
+#if BOOST_WORKAROUND(_MSC_VER, <= 1600)
+void named_slot_map_iterator::decrement() { assert(false); }
+void named_slot_map_iterator::advance(difference_type) { assert(false); }
+#endif
+
+named_slot_map::named_slot_map(const compare_type& compare) : groups(compare)
+{
+  clear();
+}
+
+void named_slot_map::clear()
+{
+  groups.clear();
+  groups[stored_group(stored_group::sk_front)];
+  groups[stored_group(stored_group::sk_back)];
+  back = groups.end();
+  --back;
+}
+
+named_slot_map::iterator named_slot_map::begin()
+{
+  return named_slot_map::iterator(groups.begin(), groups.end());
+}
+
+named_slot_map::iterator named_slot_map::end()
+{
+  return named_slot_map::iterator(groups.end(), groups.end());
+}
+
+named_slot_map::iterator
+named_slot_map::insert(const stored_group& name, const connection& con,
+                       const any& slot, connect_position at)
+{
+  group_iterator group;
+  if (name.empty()) {
+    switch (at) {
+    case at_front: group = groups.begin(); break;
+    case at_back: group = back; break;
+    }
+  } else {
+    group = groups.find(name);
+    if (group == groups.end()) {
+      slot_container_type::value_type v(name, group_list());
+      group = groups.insert(v).first;
+    }
+  }
+  iterator it;
+  it.group = group;
+  it.last_group = groups.end();
+
+  switch (at) {
+  case at_back:
+    group->second.push_back(connection_slot_pair(con, slot));
+    it.slot_ = group->second.end();
+    it.slot_assigned = true;
+    --(it.slot_);
+    break;
+
+  case at_front:
+    group->second.push_front(connection_slot_pair(con, slot));
+    it.slot_ = group->second.begin();
+    it.slot_assigned = true;
+    break;
+  }
+  return it;
+}
+
+void named_slot_map::disconnect(const stored_group& name)
+{
+  group_iterator group = groups.find(name);
+  if (group != groups.end()) {
+    slot_pair_iterator i = group->second.begin();
+    while (i != group->second.end()) {
+      slot_pair_iterator next = i;
+      ++next;
+      i->first.disconnect();
+      i = next;
+    }
+    groups.erase(group);
+  }
+}
+
+void named_slot_map::erase(iterator pos)
+{
+  // Erase the slot
+  pos.slot_->first.disconnect();
+  pos.group->second.erase(pos.slot_);
+}
+
+void named_slot_map::remove_disconnected_slots()
+{
+  // Remove any disconnected slots
+  group_iterator g = groups.begin();
+  while (g != groups.end()) {
+    slot_pair_iterator s = g->second.begin();
+    while (s != g->second.end()) {
+      if (s->first.connected()) ++s;
+      else g->second.erase(s++);
+    }
+
+    // Clear out empty groups
+    if (empty(g)) groups.erase(g++);
+    else ++g;
+  }
+}
+
+
+} } }