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authorRemko Tronçon <git@el-tramo.be>2010-02-11 12:14:00 (GMT)
committerRemko Tronçon <git@el-tramo.be>2010-02-11 12:14:00 (GMT)
commit0efa7c32aaf21a29b42b5926cc116007056843be (patch)
tree882f663a5dd0e65694bf6077b71086dd77fd7ff8 /3rdParty/Boost/libs/signals/src/signal_base.cpp
parent1d20eabbc32274b491b4c2bedf73d19933d97bfd (diff)
downloadswift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.zip
swift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.tar.bz2
Moved some modules into separate git modules.
Diffstat (limited to '3rdParty/Boost/libs/signals/src/signal_base.cpp')
m---------3rdParty/Boost0
-rw-r--r--3rdParty/Boost/libs/signals/src/signal_base.cpp189
2 files changed, 0 insertions, 189 deletions
diff --git a/3rdParty/Boost b/3rdParty/Boost
new file mode 160000
+Subproject 3bbdbc8cf1996f23d9a366da8bac0f97be6ad79
diff --git a/3rdParty/Boost/libs/signals/src/signal_base.cpp b/3rdParty/Boost/libs/signals/src/signal_base.cpp
deleted file mode 100644
index 759672d..0000000
--- a/3rdParty/Boost/libs/signals/src/signal_base.cpp
+++ /dev/null
@@ -1,189 +0,0 @@
-// 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
-