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authorTobias Markmann <tm@ayena.de>2016-04-05 13:17:19 (GMT)
committerTobias Markmann <tm@ayena.de>2016-04-05 19:42:39 (GMT)
commit2b560b129b7a31fc8cc07f618e763c95a22bf832 (patch)
tree73e72cdc758b79d01485dc28dcedd48b26859ae8 /3rdParty/Boost/src/boost/signals2/connection.hpp
parent3c560e31b0f168da917e8d566db01fd1cd997d86 (diff)
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Migrate to Boost.Signals2 from Boost.Signals
Boost.Signals was deprecated and is not improved further. This patch removes Boost.Signals from 3rdParty and adds Boost.Signals2 and its dependencies. Also removed the Qt signals compatibility file Swiften/Base/boost_bsignals.h. Test-Information: Build and ran unit tests on OS X 10.11.4. Confirmed successful login using Swift client. Change-Id: Ie6e3b2d15aac2462cda95401582f5287a479fb54
Diffstat (limited to '3rdParty/Boost/src/boost/signals2/connection.hpp')
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diff --git a/3rdParty/Boost/src/boost/signals2/connection.hpp b/3rdParty/Boost/src/boost/signals2/connection.hpp
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+/*
+ boost::signals2::connection provides a handle to a signal/slot connection.
+
+ Author: Frank Mori Hess <fmhess@users.sourceforge.net>
+ Begin: 2007-01-23
+*/
+// Copyright Frank Mori Hess 2007-2008.
+// Distributed under 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)
+
+// See http://www.boost.org/libs/signals2 for library home page.
+
+#ifndef BOOST_SIGNALS2_CONNECTION_HPP
+#define BOOST_SIGNALS2_CONNECTION_HPP
+
+#include <boost/function.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/noncopyable.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/signals2/detail/null_output_iterator.hpp>
+#include <boost/signals2/detail/unique_lock.hpp>
+#include <boost/signals2/slot.hpp>
+#include <boost/weak_ptr.hpp>
+
+namespace boost
+{
+ namespace signals2
+ {
+ extern inline void null_deleter(const void*) {}
+ namespace detail
+ {
+ class connection_body_base
+ {
+ public:
+ connection_body_base():
+ _connected(true)
+ {
+ }
+ virtual ~connection_body_base() {}
+ void disconnect()
+ {
+ unique_lock<connection_body_base> local_lock(*this);
+ nolock_disconnect();
+ }
+ void nolock_disconnect()
+ {
+ _connected = false;
+ }
+ virtual bool connected() const = 0;
+ shared_ptr<void> get_blocker()
+ {
+ unique_lock<connection_body_base> local_lock(*this);
+ shared_ptr<void> blocker = _weak_blocker.lock();
+ if(blocker == shared_ptr<void>())
+ {
+ blocker.reset(this, &null_deleter);
+ _weak_blocker = blocker;
+ }
+ return blocker;
+ }
+ bool blocked() const
+ {
+ return !_weak_blocker.expired();
+ }
+ bool nolock_nograb_blocked() const
+ {
+ return nolock_nograb_connected() == false || blocked();
+ }
+ bool nolock_nograb_connected() const {return _connected;}
+ // expose part of Lockable concept of mutex
+ virtual void lock() = 0;
+ virtual void unlock() = 0;
+
+ protected:
+
+ mutable bool _connected;
+ weak_ptr<void> _weak_blocker;
+ };
+
+ template<typename GroupKey, typename SlotType, typename Mutex>
+ class connection_body: public connection_body_base
+ {
+ public:
+ typedef Mutex mutex_type;
+ connection_body(const SlotType &slot_in):
+ slot(slot_in)
+ {
+ }
+ virtual ~connection_body() {}
+ virtual bool connected() const
+ {
+ unique_lock<mutex_type> local_lock(_mutex);
+ nolock_grab_tracked_objects(detail::null_output_iterator());
+ return nolock_nograb_connected();
+ }
+ const GroupKey& group_key() const {return _group_key;}
+ void set_group_key(const GroupKey &key) {_group_key = key;}
+ bool nolock_slot_expired() const
+ {
+ bool expired = slot.expired();
+ if(expired == true)
+ {
+ _connected = false;
+ }
+ return expired;
+ }
+ template<typename OutputIterator>
+ void nolock_grab_tracked_objects(OutputIterator inserter) const
+ {
+ slot_base::tracked_container_type::const_iterator it;
+ for(it = slot.tracked_objects().begin();
+ it != slot.tracked_objects().end();
+ ++it)
+ {
+ void_shared_ptr_variant locked_object
+ (
+ apply_visitor
+ (
+ detail::lock_weak_ptr_visitor(),
+ *it
+ )
+ );
+ if(apply_visitor(detail::expired_weak_ptr_visitor(), *it))
+ {
+ _connected = false;
+ return;
+ }
+ *inserter++ = locked_object;
+ }
+ }
+ // expose Lockable concept of mutex
+ virtual void lock()
+ {
+ _mutex.lock();
+ }
+ virtual void unlock()
+ {
+ _mutex.unlock();
+ }
+ SlotType slot;
+ private:
+ mutable mutex_type _mutex;
+ GroupKey _group_key;
+ };
+ }
+
+ class shared_connection_block;
+
+ class connection
+ {
+ public:
+ friend class shared_connection_block;
+
+ connection() {}
+ connection(const connection &other): _weak_connection_body(other._weak_connection_body)
+ {}
+ connection(const boost::weak_ptr<detail::connection_body_base> &connectionBody):
+ _weak_connection_body(connectionBody)
+ {}
+
+ // move support
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+ connection(connection && other): _weak_connection_body(std::move(other._weak_connection_body))
+ {
+ // make sure other is reset, in case it is a scoped_connection (so it
+ // won't disconnect on destruction after being moved away from).
+ other._weak_connection_body.reset();
+ }
+ connection & operator=(connection && other)
+ {
+ if(&other == this) return *this;
+ _weak_connection_body = std::move(other._weak_connection_body);
+ // make sure other is reset, in case it is a scoped_connection (so it
+ // won't disconnect on destruction after being moved away from).
+ other._weak_connection_body.reset();
+ return *this;
+ }
+#endif // !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+ connection & operator=(const connection & other)
+ {
+ if(&other == this) return *this;
+ _weak_connection_body = other._weak_connection_body;
+ return *this;
+ }
+
+ ~connection() {}
+ void disconnect() const
+ {
+ boost::shared_ptr<detail::connection_body_base> connectionBody(_weak_connection_body.lock());
+ if(connectionBody == 0) return;
+ connectionBody->disconnect();
+ }
+ bool connected() const
+ {
+ boost::shared_ptr<detail::connection_body_base> connectionBody(_weak_connection_body.lock());
+ if(connectionBody == 0) return false;
+ return connectionBody->connected();
+ }
+ bool blocked() const
+ {
+ boost::shared_ptr<detail::connection_body_base> connectionBody(_weak_connection_body.lock());
+ if(connectionBody == 0) return true;
+ return connectionBody->blocked();
+ }
+ bool operator==(const connection& other) const
+ {
+ boost::shared_ptr<detail::connection_body_base> connectionBody(_weak_connection_body.lock());
+ boost::shared_ptr<detail::connection_body_base> otherConnectionBody(other._weak_connection_body.lock());
+ return connectionBody == otherConnectionBody;
+ }
+ bool operator!=(const connection& other) const
+ {
+ return !(*this == other);
+ }
+ bool operator<(const connection& other) const
+ {
+ boost::shared_ptr<detail::connection_body_base> connectionBody(_weak_connection_body.lock());
+ boost::shared_ptr<detail::connection_body_base> otherConnectionBody(other._weak_connection_body.lock());
+ return connectionBody < otherConnectionBody;
+ }
+ void swap(connection &other)
+ {
+ using std::swap;
+ swap(_weak_connection_body, other._weak_connection_body);
+ }
+ protected:
+
+ boost::weak_ptr<detail::connection_body_base> _weak_connection_body;
+ };
+ inline void swap(connection &conn1, connection &conn2)
+ {
+ conn1.swap(conn2);
+ }
+
+ class scoped_connection: public connection
+ {
+ public:
+ scoped_connection() {}
+ scoped_connection(const connection &other):
+ connection(other)
+ {}
+ ~scoped_connection()
+ {
+ disconnect();
+ }
+ scoped_connection& operator=(const connection &rhs)
+ {
+ disconnect();
+ connection::operator=(rhs);
+ return *this;
+ }
+
+ // move support
+#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+ scoped_connection(scoped_connection && other): connection(std::move(other))
+ {
+ }
+ scoped_connection(connection && other): connection(std::move(other))
+ {
+ }
+ scoped_connection & operator=(scoped_connection && other)
+ {
+ if(&other == this) return *this;
+ disconnect();
+ connection::operator=(std::move(other));
+ return *this;
+ }
+ scoped_connection & operator=(connection && other)
+ {
+ if(&other == this) return *this;
+ disconnect();
+ connection::operator=(std::move(other));
+ return *this;
+ }
+#endif // !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
+
+ connection release()
+ {
+ connection conn(_weak_connection_body);
+ _weak_connection_body.reset();
+ return conn;
+ }
+ private:
+ scoped_connection(const scoped_connection &other);
+ scoped_connection& operator=(const scoped_connection &rhs);
+ };
+ // Sun 5.9 compiler doesn't find the swap for base connection class when
+ // arguments are scoped_connection, so we provide this explicitly.
+ inline void swap(scoped_connection &conn1, scoped_connection &conn2)
+ {
+ conn1.swap(conn2);
+ }
+ }
+}
+
+#endif // BOOST_SIGNALS2_CONNECTION_HPP