1 /* 2 * Copyright 2006 The WebRTC Project Authors. All rights reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_BASE_SIGSLOTREPEATER_H__ 12 #define WEBRTC_BASE_SIGSLOTREPEATER_H__ 13 14 // repeaters are both signals and slots, which are designed as intermediate 15 // pass-throughs for signals and slots which don't know about each other (for 16 // modularity or encapsulation). This eliminates the need to declare a signal 17 // handler whose sole purpose is to fire another signal. The repeater connects 18 // to the originating signal using the 'repeat' method. When the repeated 19 // signal fires, the repeater will also fire. 20 21 #include "webrtc/base/sigslot.h" 22 23 namespace sigslot { 24 25 template<class mt_policy = SIGSLOT_DEFAULT_MT_POLICY> 26 class repeater0 : public signal0<mt_policy>, 27 public has_slots<mt_policy> 28 { 29 public: 30 typedef signal0<mt_policy> base_type; 31 typedef repeater0<mt_policy> this_type; 32 33 repeater0() { } 34 repeater0(const this_type& s) : base_type(s) { } 35 36 void reemit() { signal0<mt_policy>::emit(); } 37 void repeat(base_type &s) { s.connect(this, &this_type::reemit); } 38 void stop(base_type &s) { s.disconnect(this); } 39 }; 40 41 template<class arg1_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY> 42 class repeater1 : public signal1<arg1_type, mt_policy>, 43 public has_slots<mt_policy> 44 { 45 public: 46 typedef signal1<arg1_type, mt_policy> base_type; 47 typedef repeater1<arg1_type, mt_policy> this_type; 48 49 repeater1() { } 50 repeater1(const this_type& s) : base_type(s) { } 51 52 void reemit(arg1_type a1) { signal1<arg1_type, mt_policy>::emit(a1); } 53 void repeat(base_type& s) { s.connect(this, &this_type::reemit); } 54 void stop(base_type &s) { s.disconnect(this); } 55 }; 56 57 template<class arg1_type, class arg2_type, class mt_policy = SIGSLOT_DEFAULT_MT_POLICY> 58 class repeater2 : public signal2<arg1_type, arg2_type, mt_policy>, 59 public has_slots<mt_policy> 60 { 61 public: 62 typedef signal2<arg1_type, arg2_type, mt_policy> base_type; 63 typedef repeater2<arg1_type, arg2_type, mt_policy> this_type; 64 65 repeater2() { } 66 repeater2(const this_type& s) : base_type(s) { } 67 68 void reemit(arg1_type a1, arg2_type a2) { signal2<arg1_type, arg2_type, mt_policy>::emit(a1,a2); } 69 void repeat(base_type& s) { s.connect(this, &this_type::reemit); } 70 void stop(base_type &s) { s.disconnect(this); } 71 }; 72 73 template<class arg1_type, class arg2_type, class arg3_type, 74 class mt_policy = SIGSLOT_DEFAULT_MT_POLICY> 75 class repeater3 : public signal3<arg1_type, arg2_type, arg3_type, mt_policy>, 76 public has_slots<mt_policy> 77 { 78 public: 79 typedef signal3<arg1_type, arg2_type, arg3_type, mt_policy> base_type; 80 typedef repeater3<arg1_type, arg2_type, arg3_type, mt_policy> this_type; 81 82 repeater3() { } 83 repeater3(const this_type& s) : base_type(s) { } 84 85 void reemit(arg1_type a1, arg2_type a2, arg3_type a3) { 86 signal3<arg1_type, arg2_type, arg3_type, mt_policy>::emit(a1,a2,a3); 87 } 88 void repeat(base_type& s) { s.connect(this, &this_type::reemit); } 89 void stop(base_type &s) { s.disconnect(this); } 90 }; 91 92 } // namespace sigslot 93 94 #endif // WEBRTC_BASE_SIGSLOTREPEATER_H__ 95
