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* Copyright 2006, Google Inc.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef TALK_BASE_SIGSLOTREPEATER_H__
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#define TALK_BASE_SIGSLOTREPEATER_H__
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// repeaters are both signals and slots, which are designed as intermediate
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// pass-throughs for signals and slots which don't know about each other (for
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// modularity or encapsulation). This eliminates the need to declare a signal
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// handler whose sole purpose is to fire another signal. The repeater connects
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// to the originating signal using the 'repeat' method. When the repeated
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// signal fires, the repeater will also fire.
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#include "talk/base/sigslot.h"
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template<class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
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class repeater0 : public signal0<mt_policy>,
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public has_slots<mt_policy>
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typedef signal0<mt_policy> base_type;
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typedef repeater0<mt_policy> this_type;
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repeater0(const this_type& s) : base_type(s) { }
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void reemit() { signal0<mt_policy>::emit(); }
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void repeat(base_type &s) { s.connect(this, &this_type::reemit); }
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template<class arg1_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
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class repeater1 : public signal1<arg1_type, mt_policy>,
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public has_slots<mt_policy>
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typedef signal1<arg1_type, mt_policy> base_type;
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typedef repeater1<arg1_type, mt_policy> this_type;
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repeater1(const this_type& s) : base_type(s) { }
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void reemit(arg1_type a1) { signal1<arg1_type, mt_policy>::emit(a1); }
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void repeat(base_type& s) { s.connect(this, &this_type::reemit); }
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template<class arg1_type, class arg2_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
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class repeater2 : public signal2<arg1_type, arg2_type, mt_policy>,
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public has_slots<mt_policy>
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typedef signal2<arg1_type, arg2_type, mt_policy> base_type;
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typedef repeater2<arg1_type, arg2_type, mt_policy> this_type;
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repeater2(const this_type& s) : base_type(s) { }
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void reemit(arg1_type a1, arg2_type a2) { signal2<arg1_type, arg2_type, mt_policy>::emit(a1,a2); }
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void repeat(base_type& s) { s.connect(this, &this_type::reemit); }
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template<class arg1_type, class arg2_type, class arg3_type,
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class mt_policy = SIGSLOT_DEFAULT_MT_POLICY>
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class repeater3 : public signal3<arg1_type, arg2_type, arg3_type, mt_policy>,
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public has_slots<mt_policy>
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typedef signal3<arg1_type, arg2_type, arg3_type, mt_policy> base_type;
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typedef repeater3<arg1_type, arg2_type, arg3_type, mt_policy> this_type;
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repeater3(const this_type& s) : base_type(s) { }
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void reemit(arg1_type a1, arg2_type a2, arg3_type a3) {
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signal3<arg1_type, arg2_type, arg3_type, mt_policy>::emit(a1,a2,a3);
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void repeat(base_type& s) { s.connect(this, &this_type::reemit); }
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} // namespace sigslot
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#endif // TALK_BASE_SIGSLOTREPEATER_H__