Import.

author: Remko Tronçon <git@el-tramo.be> 2009-06-01 08:48:42 (GMT)
committer: Remko Tronçon <git@el-tramo.be> 2009-06-01 09:24:28 (GMT)
commit: 2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch)
tree: d46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/libs/signals
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5 files changed, 608 insertions, 0 deletions
diff --git a/3rdParty/Boost/libs/signals/src/connection.cpp b/3rdParty/Boost/libs/signals/src/connection.cpp
new file mode 100644
index 0000000..b4ed8b4
--- /dev/null
+++ b/3rdParty/Boost/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
diff --git a/3rdParty/Boost/libs/signals/src/named_slot_map.cpp b/3rdParty/Boost/libs/signals/src/named_slot_map.cpp
new file mode 100644
index 0000000..85a4bda
--- /dev/null
+++ b/3rdParty/Boost/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, <= 1500)
+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;
+  }
+}
+
+
+} } }
diff --git a/3rdParty/Boost/libs/signals/src/signal_base.cpp b/3rdParty/Boost/libs/signals/src/signal_base.cpp
new file mode 100644
index 0000000..759672d
--- /dev/null
+++ b/3rdParty/Boost/libs/signals/src/signal_base.cpp
@@ -0,0 +1,189 @@
+// 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/signal_base.hpp>
+#include <cassert>
+
+namespace boost {
+  namespace BOOST_SIGNALS_NAMESPACE {
+    namespace detail {
+      signal_base_impl::signal_base_impl(const compare_type& comp,
+                                         const any& combiner)
+        : call_depth(0),
+          slots_(comp),
+          combiner_(combiner)
+      {
+        flags.delayed_disconnect = false;
+        flags.clearing = false;
+      }
+
+      signal_base_impl::~signal_base_impl()
+      {
+        // Set the "clearing" flag to ignore extraneous disconnect requests,
+        // because all slots will be disconnected on destruction anyway.
+        flags.clearing = true;
+      }
+
+      void signal_base_impl::disconnect_all_slots()
+      {
+        // Do nothing if we're already clearing the slot list
+        if (flags.clearing)
+          return;
+
+        if (call_depth == 0) {
+          // Clearing the slot list will disconnect all slots automatically
+          temporarily_set_clearing set_clearing(this);
+          slots_.clear();
+        }
+        else {
+          // We can't actually remove elements from the slot list because there
+          // are still iterators into the slot list that must not be
+          // invalidated by this operation. So just disconnect each slot
+          // without removing it from the slot list. When the call depth does
+          // reach zero, the call list will be cleared.
+          flags.delayed_disconnect = true;
+          temporarily_set_clearing set_clearing(this);
+          for (iterator i = slots_.begin(); i != slots_.end(); ++i) {
+            i->first.disconnect();
+          }
+        }
+      }
+
+      connection
+      signal_base_impl::
+        connect_slot(const any& slot_,
+                     const stored_group& name,
+                     shared_ptr<slot_base::data_t> data,
+                     connect_position at)
+      {
+        // Transfer the burden of ownership to a local, scoped
+        // connection.
+        data->watch_bound_objects.set_controlling(false);
+        scoped_connection safe_connection(data->watch_bound_objects);
+
+        // Allocate storage for an iterator that will hold the point of
+        // insertion of the slot into the list. This is used to later remove
+        // the slot when it is disconnected.
+        std::auto_ptr<iterator> saved_iter(new iterator);
+
+        // Add the slot to the list.
+        iterator pos =
+          slots_.insert(name, data->watch_bound_objects, slot_, at);
+
+        // The assignment operation here absolutely must not throw, which
+        // intuitively makes sense (because any container's insert method
+        // becomes impossible to use in an exception-safe manner without this
+        // assumption), but doesn't appear to be mentioned in the standard.
+        *saved_iter = pos;
+
+        // Fill out the connection object appropriately. None of these
+        // operations can throw
+        data->watch_bound_objects.get_connection()->signal = this;
+        data->watch_bound_objects.get_connection()->signal_data =
+          saved_iter.release();
+        data->watch_bound_objects.get_connection()->signal_disconnect =
+          &signal_base_impl::slot_disconnected;
+
+        // Make the copy of the connection in the list disconnect when it is
+        // destroyed. The local, scoped connection is then released
+        // because ownership has been transferred.
+        pos->first.set_controlling();
+        return safe_connection.release();
+      }
+
+      bool signal_base_impl::empty() const
+      {
+        // Disconnected slots may still be in the list of slots if
+        //   a) this is called while slots are being invoked (call_depth > 0)
+        //   b) an exception was thrown in remove_disconnected_slots
+        for (iterator i = slots_.begin(); i != slots_.end(); ++i) {
+          if (i->first.connected())
+            return false;
+        }
+
+        return true;
+      }
+
+      std::size_t signal_base_impl::num_slots() const
+      {
+        // Disconnected slots may still be in the list of slots if
+        //   a) this is called while slots are being invoked (call_depth > 0)
+        //   b) an exception was thrown in remove_disconnected_slots
+        std::size_t count = 0;
+        for (iterator i = slots_.begin(); i != slots_.end(); ++i) {
+          if (i->first.connected())
+            ++count;
+        }
+        return count;
+      }
+
+      void signal_base_impl::disconnect(const stored_group& group)
+      { slots_.disconnect(group); }
+
+      void signal_base_impl::slot_disconnected(void* obj, void* data)
+      {
+        signal_base_impl* self = reinterpret_cast<signal_base_impl*>(obj);
+
+        // We won't need the slot iterator after this
+        std::auto_ptr<iterator> slot(reinterpret_cast<iterator*>(data));
+
+        // If we're flags.clearing, we don't bother updating the list of slots
+        if (!self->flags.clearing) {
+          // If we're in a call, note the fact that a slot has been deleted so
+          // we can come back later to remove the iterator
+          if (self->call_depth > 0) {
+            self->flags.delayed_disconnect = true;
+          }
+          else {
+            // Just remove the slot now, it's safe
+            self->slots_.erase(*slot);
+          }
+        }
+      }
+
+      void signal_base_impl::remove_disconnected_slots() const
+      { slots_.remove_disconnected_slots(); }
+
+      call_notification::
+        call_notification(const shared_ptr<signal_base_impl>& b) :
+          impl(b)
+      {
+        // A call will be made, so increment the call depth as a notification
+        impl->call_depth++;
+      }
+
+      call_notification::~call_notification()
+      {
+        impl->call_depth--;
+
+        // If the call depth is zero and we have some slots that have been
+        // disconnected during the calls, remove those slots from the list
+        if (impl->call_depth == 0 &&
+            impl->flags.delayed_disconnect) {
+          impl->remove_disconnected_slots();
+          impl->flags.delayed_disconnect = false;
+        }
+      }
+
+    signal_base::signal_base(const compare_type& comp, const any& combiner)
+      : impl()
+    {
+      impl.reset(new signal_base_impl(comp, combiner));
+    }
+
+    signal_base::~signal_base()
+    {
+    }
+
+    } // namespace detail
+  } // namespace BOOST_SIGNALS_NAMESPACE
+} // namespace boost
+
diff --git a/3rdParty/Boost/libs/signals/src/slot.cpp b/3rdParty/Boost/libs/signals/src/slot.cpp
new file mode 100644
index 0000000..7c296d6
--- /dev/null
+++ b/3rdParty/Boost/libs/signals/src/slot.cpp
@@ -0,0 +1,71 @@
+// 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/slot.hpp>
+
+namespace boost {
+  namespace BOOST_SIGNALS_NAMESPACE {
+    namespace detail {
+      void slot_base::create_connection()
+      {
+        // Create a new connection object
+        basic_connection* con = new basic_connection();
+
+        /* nothrow */ {
+          // The signal portion isn't really necessary, except that we need a
+          // signal for the connection to be connected.
+          con->signal = static_cast<void*>(this);
+          con->signal_data = 0;
+          con->blocked_ = false ;
+          con->signal_disconnect = &bound_object_destructed;
+        }
+
+        // This connection watches for destruction of bound objects. Note
+        // that the reset routine will delete con if an allocation throws
+        data->watch_bound_objects.reset(con);
+
+        // We create a scoped connection, so that exceptions thrown while
+        // adding bound objects will cause a cleanup of the bound objects
+        // already connected.
+        scoped_connection safe_connection(data->watch_bound_objects);
+
+        // Now notify each of the bound objects that they are connected to this
+        // slot.
+        for(std::vector<const trackable*>::iterator i =
+              data->bound_objects.begin();
+            i != data->bound_objects.end(); ++i) {
+          // Notify the object that the slot is connecting to it
+          BOOST_SIGNALS_NAMESPACE::detail::bound_object binding;
+          (*i)->signal_connected(data->watch_bound_objects, binding);
+
+          // This will notify the bound object that the connection just made
+          // should be disconnected if an exception is thrown before the
+          // end of this iteration
+          BOOST_SIGNALS_NAMESPACE::detail::auto_disconnect_bound_object
+            disconnector(binding);
+
+          // Add the binding to the list of bindings for the connection
+          con->bound_objects.push_back(binding);
+
+          // The connection object now knows about the bound object, so if an
+          // exception is thrown later the connection object will notify the
+          // bound object of the disconnection automatically
+          disconnector.release();
+        }
+
+        // No exceptions will be thrown past this point.
+        safe_connection.release();
+
+        data->watch_bound_objects.set_controlling(true);
+      }
+    } // end namespace detail
+  } // end namespace BOOST_SIGNALS_NAMESPACE
+} // end namespace boost
diff --git a/3rdParty/Boost/libs/signals/src/trackable.cpp b/3rdParty/Boost/libs/signals/src/trackable.cpp
new file mode 100644
index 0000000..4f63586
--- /dev/null
+++ b/3rdParty/Boost/libs/signals/src/trackable.cpp
@@ -0,0 +1,59 @@
+// 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/trackable.hpp>
+#include <algorithm>
+
+namespace boost {
+  namespace BOOST_SIGNALS_NAMESPACE {
+    void trackable::signal_disconnected(void* obj, void* data)
+    {
+      trackable* self = reinterpret_cast<trackable*>(obj);
+      connection_iterator* signal =
+        reinterpret_cast<connection_iterator*>(data);
+
+      // If we're dying, don't bother erasing the connection from the list;
+      // it'll be gone anyway
+      if (!self->dying) {
+        self->connected_signals.erase(*signal);
+      }
+
+      // This iterator pointer won't ever be used again
+      delete signal;
+    }
+
+    void
+    trackable::signal_connected(connection c,
+                                BOOST_SIGNALS_NAMESPACE::detail::bound_object& binding) const
+    {
+      // Insert the connection
+      connection_iterator pos =
+        connected_signals.insert(connected_signals.end(), c);
+
+      // Make this copy of the object disconnect when destroyed
+      pos->set_controlling();
+
+      binding.obj = const_cast<void*>(reinterpret_cast<const void*>(this));
+      binding.data = reinterpret_cast<void*>(new connection_iterator(pos));
+      binding.disconnect = &signal_disconnected;
+    }
+
+    trackable::~trackable()
+    {
+      dying = true;
+    }
+  } // end namespace BOOST_SIGNALS_NAMESPACE
+}
+
+#ifndef BOOST_MSVC
+// Explicit instantiations to keep in the library
+template class std::list<boost::BOOST_SIGNALS_NAMESPACE::connection>;
+#endif
author	Remko Tronçon <git@el-tramo.be>	2009-06-01 08:48:42 (GMT)
committer	Remko Tronçon <git@el-tramo.be>	2009-06-01 09:24:28 (GMT)
commit	2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch)
tree	d46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/libs/signals
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