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