/usr/include/cxxtools/eventsource.h is in libcxxtools-dev 2.2.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | /*
* Copyright (C) 2006-2007 Laurentiu-Gheorghe Crisan
* Copyright (C) 2006-2008 Marc Boris Duerner
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef CXXTOOLS_EVENTSOURCE_H
#define CXXTOOLS_EVENTSOURCE_H
#include <cxxtools/event.h>
#include <cxxtools/signal.h>
#include <cxxtools/api.h>
#include <cxxtools/mutex.h>
#include <cxxtools/eventsink.h>
#include <map>
#include <typeinfo>
namespace cxxtools {
class EventSink;
/** @brief Sends Events to receivers in other threads
The Signal class is not thread-safe and can only be used for
intra-thread communication. To pass Events between different threads
use an %EventSource instead. Thread-safety only refers to the usage
of the %EventSource itself (connection, disconnecting...) and not the
slot.
Construction and destruction must always occur in isolation.
*/
class CXXTOOLS_API EventSource : protected NonCopyable
{
friend class EventSink;
public:
EventSource();
~EventSource();
void send(const cxxtools::Event& ev);
void connect(EventSink& sink);
void disconnect(EventSink& sink);
template <typename EventT>
void subscribe(EventSink& sink)
{
subscribe( sink, typeid(EventT) );
}
template <typename EventT>
void unsubscribe(EventSink& sink)
{
unsubscribe( sink, typeid(EventT) );
}
private:
bool tryDisconnect(EventSink& sink);
void subscribe(EventSink& sink, const std::type_info& ti);
void unsubscribe(EventSink& sink, const std::type_info& ti);
private:
struct Sentry;
typedef std::multimap< const std::type_info*,
EventSink*,
CompareEventTypeInfo > SinkMap;
mutable RecursiveMutex _mutex;
mutable RecursiveMutex* _dmutex;
mutable SinkMap _sinks;
mutable Sentry* _sentry;
mutable bool _dirty;
};
} // namespace cxxtools
#endif
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