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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2013 Google Inc. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright notice, | |
| 9 * this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 11 * this list of conditions and the following disclaimer in the documentation | |
| 12 * and/or other materials provided with the distribution. | |
| 13 * 3. The name of the author may not be used to endorse or promote products | |
| 14 * derived from this software without specific prior written permission. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
| 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
| 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 // This file contains Macros for creating proxies for webrtc MediaStream and | |
| 29 // PeerConnection classes. | |
| 30 | |
| 31 // | |
| 32 // Example usage: | |
| 33 // | |
| 34 // class TestInterface : public rtc::RefCountInterface { | |
| 35 // public: | |
| 36 // std::string FooA() = 0; | |
| 37 // std::string FooB(bool arg1) const = 0; | |
| 38 // std::string FooC(bool arg1)= 0; | |
| 39 // }; | |
| 40 // | |
| 41 // Note that return types can not be a const reference. | |
| 42 // | |
| 43 // class Test : public TestInterface { | |
| 44 // ... implementation of the interface. | |
| 45 // }; | |
| 46 // | |
| 47 // BEGIN_PROXY_MAP(Test) | |
| 48 // PROXY_METHOD0(std::string, FooA) | |
| 49 // PROXY_CONSTMETHOD1(std::string, FooB, arg1) | |
| 50 // PROXY_METHOD1(std::string, FooC, arg1) | |
| 51 // END_PROXY() | |
| 52 // | |
| 53 // The proxy can be created using TestProxy::Create(Thread*, TestInterface*). | |
| 54 | |
| 55 #ifndef TALK_APP_WEBRTC_PROXY_H_ | |
| 56 #define TALK_APP_WEBRTC_PROXY_H_ | |
| 57 | |
| 58 #include "webrtc/base/event.h" | |
| 59 #include "webrtc/base/thread.h" | |
| 60 | |
| 61 namespace webrtc { | |
| 62 | |
| 63 template <typename R> | |
| 64 class ReturnType { | |
| 65 public: | |
| 66 template<typename C, typename M> | |
| 67 void Invoke(C* c, M m) { r_ = (c->*m)(); } | |
| 68 template<typename C, typename M, typename T1> | |
| 69 void Invoke(C* c, M m, T1 a1) { r_ = (c->*m)(a1); } | |
| 70 template<typename C, typename M, typename T1, typename T2> | |
| 71 void Invoke(C* c, M m, T1 a1, T2 a2) { r_ = (c->*m)(a1, a2); } | |
| 72 template<typename C, typename M, typename T1, typename T2, typename T3> | |
| 73 void Invoke(C* c, M m, T1 a1, T2 a2, T3 a3) { r_ = (c->*m)(a1, a2, a3); } | |
| 74 template<typename C, typename M, typename T1, typename T2, typename T3, | |
| 75 typename T4> | |
| 76 void Invoke(C* c, M m, T1 a1, T2 a2, T3 a3, T4 a4) { | |
| 77 r_ = (c->*m)(a1, a2, a3, a4); | |
| 78 } | |
| 79 template<typename C, typename M, typename T1, typename T2, typename T3, | |
| 80 typename T4, typename T5> | |
| 81 void Invoke(C* c, M m, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5) { | |
| 82 r_ = (c->*m)(a1, a2, a3, a4, a5); | |
| 83 } | |
| 84 | |
| 85 R value() { return r_; } | |
| 86 | |
| 87 private: | |
| 88 R r_; | |
| 89 }; | |
| 90 | |
| 91 template <> | |
| 92 class ReturnType<void> { | |
| 93 public: | |
| 94 template<typename C, typename M> | |
| 95 void Invoke(C* c, M m) { (c->*m)(); } | |
| 96 template<typename C, typename M, typename T1> | |
| 97 void Invoke(C* c, M m, T1 a1) { (c->*m)(a1); } | |
| 98 template<typename C, typename M, typename T1, typename T2> | |
| 99 void Invoke(C* c, M m, T1 a1, T2 a2) { (c->*m)(a1, a2); } | |
| 100 template<typename C, typename M, typename T1, typename T2, typename T3> | |
| 101 void Invoke(C* c, M m, T1 a1, T2 a2, T3 a3) { (c->*m)(a1, a2, a3); } | |
| 102 | |
| 103 void value() {} | |
| 104 }; | |
| 105 | |
| 106 namespace internal { | |
| 107 | |
| 108 class SynchronousMethodCall | |
| 109 : public rtc::MessageData, | |
| 110 public rtc::MessageHandler { | |
| 111 public: | |
| 112 explicit SynchronousMethodCall(rtc::MessageHandler* proxy) | |
| 113 : e_(), proxy_(proxy) {} | |
| 114 ~SynchronousMethodCall() {} | |
| 115 | |
| 116 void Invoke(rtc::Thread* t) { | |
| 117 if (t->IsCurrent()) { | |
| 118 proxy_->OnMessage(NULL); | |
| 119 } else { | |
| 120 e_.reset(new rtc::Event(false, false)); | |
| 121 t->Post(this, 0); | |
| 122 e_->Wait(rtc::Event::kForever); | |
| 123 } | |
| 124 } | |
| 125 | |
| 126 private: | |
| 127 void OnMessage(rtc::Message*) { proxy_->OnMessage(NULL); e_->Set(); } | |
| 128 rtc::scoped_ptr<rtc::Event> e_; | |
| 129 rtc::MessageHandler* proxy_; | |
| 130 }; | |
| 131 | |
| 132 } // namespace internal | |
| 133 | |
| 134 template <typename C, typename R> | |
| 135 class MethodCall0 : public rtc::Message, | |
| 136 public rtc::MessageHandler { | |
| 137 public: | |
| 138 typedef R (C::*Method)(); | |
| 139 MethodCall0(C* c, Method m) : c_(c), m_(m) {} | |
| 140 | |
| 141 R Marshal(rtc::Thread* t) { | |
| 142 internal::SynchronousMethodCall(this).Invoke(t); | |
| 143 return r_.value(); | |
| 144 } | |
| 145 | |
| 146 private: | |
| 147 void OnMessage(rtc::Message*) { r_.Invoke(c_, m_); } | |
| 148 | |
| 149 C* c_; | |
| 150 Method m_; | |
| 151 ReturnType<R> r_; | |
| 152 }; | |
| 153 | |
| 154 template <typename C, typename R> | |
| 155 class ConstMethodCall0 : public rtc::Message, | |
| 156 public rtc::MessageHandler { | |
| 157 public: | |
| 158 typedef R (C::*Method)() const; | |
| 159 ConstMethodCall0(C* c, Method m) : c_(c), m_(m) {} | |
| 160 | |
| 161 R Marshal(rtc::Thread* t) { | |
| 162 internal::SynchronousMethodCall(this).Invoke(t); | |
| 163 return r_.value(); | |
| 164 } | |
| 165 | |
| 166 private: | |
| 167 void OnMessage(rtc::Message*) { r_.Invoke(c_, m_); } | |
| 168 | |
| 169 C* c_; | |
| 170 Method m_; | |
| 171 ReturnType<R> r_; | |
| 172 }; | |
| 173 | |
| 174 template <typename C, typename R, typename T1> | |
| 175 class MethodCall1 : public rtc::Message, | |
| 176 public rtc::MessageHandler { | |
| 177 public: | |
| 178 typedef R (C::*Method)(T1 a1); | |
| 179 MethodCall1(C* c, Method m, T1 a1) : c_(c), m_(m), a1_(a1) {} | |
| 180 | |
| 181 R Marshal(rtc::Thread* t) { | |
| 182 internal::SynchronousMethodCall(this).Invoke(t); | |
| 183 return r_.value(); | |
| 184 } | |
| 185 | |
| 186 private: | |
| 187 void OnMessage(rtc::Message*) { r_.Invoke(c_, m_, a1_); } | |
| 188 | |
| 189 C* c_; | |
| 190 Method m_; | |
| 191 ReturnType<R> r_; | |
| 192 T1 a1_; | |
| 193 }; | |
| 194 | |
| 195 template <typename C, typename R, typename T1> | |
| 196 class ConstMethodCall1 : public rtc::Message, | |
| 197 public rtc::MessageHandler { | |
| 198 public: | |
| 199 typedef R (C::*Method)(T1 a1) const; | |
| 200 ConstMethodCall1(C* c, Method m, T1 a1) : c_(c), m_(m), a1_(a1) {} | |
| 201 | |
| 202 R Marshal(rtc::Thread* t) { | |
| 203 internal::SynchronousMethodCall(this).Invoke(t); | |
| 204 return r_.value(); | |
| 205 } | |
| 206 | |
| 207 private: | |
| 208 void OnMessage(rtc::Message*) { r_.Invoke(c_, m_, a1_); } | |
| 209 | |
| 210 C* c_; | |
| 211 Method m_; | |
| 212 ReturnType<R> r_; | |
| 213 T1 a1_; | |
| 214 }; | |
| 215 | |
| 216 template <typename C, typename R, typename T1, typename T2> | |
| 217 class MethodCall2 : public rtc::Message, | |
| 218 public rtc::MessageHandler { | |
| 219 public: | |
| 220 typedef R (C::*Method)(T1 a1, T2 a2); | |
| 221 MethodCall2(C* c, Method m, T1 a1, T2 a2) : c_(c), m_(m), a1_(a1), a2_(a2) {} | |
| 222 | |
| 223 R Marshal(rtc::Thread* t) { | |
| 224 internal::SynchronousMethodCall(this).Invoke(t); | |
| 225 return r_.value(); | |
| 226 } | |
| 227 | |
| 228 private: | |
| 229 void OnMessage(rtc::Message*) { r_.Invoke(c_, m_, a1_, a2_); } | |
| 230 | |
| 231 C* c_; | |
| 232 Method m_; | |
| 233 ReturnType<R> r_; | |
| 234 T1 a1_; | |
| 235 T2 a2_; | |
| 236 }; | |
| 237 | |
| 238 template <typename C, typename R, typename T1, typename T2, typename T3> | |
| 239 class MethodCall3 : public rtc::Message, | |
| 240 public rtc::MessageHandler { | |
| 241 public: | |
| 242 typedef R (C::*Method)(T1 a1, T2 a2, T3 a3); | |
| 243 MethodCall3(C* c, Method m, T1 a1, T2 a2, T3 a3) | |
| 244 : c_(c), m_(m), a1_(a1), a2_(a2), a3_(a3) {} | |
| 245 | |
| 246 R Marshal(rtc::Thread* t) { | |
| 247 internal::SynchronousMethodCall(this).Invoke(t); | |
| 248 return r_.value(); | |
| 249 } | |
| 250 | |
| 251 private: | |
| 252 void OnMessage(rtc::Message*) { r_.Invoke(c_, m_, a1_, a2_, a3_); } | |
| 253 | |
| 254 C* c_; | |
| 255 Method m_; | |
| 256 ReturnType<R> r_; | |
| 257 T1 a1_; | |
| 258 T2 a2_; | |
| 259 T3 a3_; | |
| 260 }; | |
| 261 | |
| 262 template <typename C, typename R, typename T1, typename T2, typename T3, | |
| 263 typename T4> | |
| 264 class MethodCall4 : public rtc::Message, | |
| 265 public rtc::MessageHandler { | |
| 266 public: | |
| 267 typedef R (C::*Method)(T1 a1, T2 a2, T3 a3, T4 a4); | |
| 268 MethodCall4(C* c, Method m, T1 a1, T2 a2, T3 a3, T4 a4) | |
| 269 : c_(c), m_(m), a1_(a1), a2_(a2), a3_(a3), a4_(a4) {} | |
| 270 | |
| 271 R Marshal(rtc::Thread* t) { | |
| 272 internal::SynchronousMethodCall(this).Invoke(t); | |
| 273 return r_.value(); | |
| 274 } | |
| 275 | |
| 276 private: | |
| 277 void OnMessage(rtc::Message*) { r_.Invoke(c_, m_, a1_, a2_, a3_, a4_); } | |
| 278 | |
| 279 C* c_; | |
| 280 Method m_; | |
| 281 ReturnType<R> r_; | |
| 282 T1 a1_; | |
| 283 T2 a2_; | |
| 284 T3 a3_; | |
| 285 T4 a4_; | |
| 286 }; | |
| 287 | |
| 288 template <typename C, typename R, typename T1, typename T2, typename T3, | |
| 289 typename T4, typename T5> | |
| 290 class MethodCall5 : public rtc::Message, | |
| 291 public rtc::MessageHandler { | |
| 292 public: | |
| 293 typedef R (C::*Method)(T1 a1, T2 a2, T3 a3, T4 a4, T5 a5); | |
| 294 MethodCall5(C* c, Method m, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5) | |
| 295 : c_(c), m_(m), a1_(a1), a2_(a2), a3_(a3), a4_(a4), a5_(a5) {} | |
| 296 | |
| 297 R Marshal(rtc::Thread* t) { | |
| 298 internal::SynchronousMethodCall(this).Invoke(t); | |
| 299 return r_.value(); | |
| 300 } | |
| 301 | |
| 302 private: | |
| 303 void OnMessage(rtc::Message*) { r_.Invoke(c_, m_, a1_, a2_, a3_, a4_, a5_); } | |
| 304 | |
| 305 C* c_; | |
| 306 Method m_; | |
| 307 ReturnType<R> r_; | |
| 308 T1 a1_; | |
| 309 T2 a2_; | |
| 310 T3 a3_; | |
| 311 T4 a4_; | |
| 312 T5 a5_; | |
| 313 }; | |
| 314 | |
| 315 #define BEGIN_PROXY_MAP(c) \ | |
| 316 class c##Proxy : public c##Interface { \ | |
| 317 protected: \ | |
| 318 typedef c##Interface C; \ | |
| 319 c##Proxy(rtc::Thread* thread, C* c) : owner_thread_(thread), c_(c) {} \ | |
| 320 ~c##Proxy() { \ | |
| 321 MethodCall0<c##Proxy, void> call(this, &c##Proxy::Release_s); \ | |
| 322 call.Marshal(owner_thread_); \ | |
| 323 } \ | |
| 324 \ | |
| 325 public: \ | |
| 326 static rtc::scoped_refptr<C> Create(rtc::Thread* thread, C* c) { \ | |
| 327 return new rtc::RefCountedObject<c##Proxy>(thread, c); \ | |
| 328 } | |
| 329 | |
| 330 #define PROXY_METHOD0(r, method) \ | |
| 331 r method() override { \ | |
| 332 MethodCall0<C, r> call(c_.get(), &C::method); \ | |
| 333 return call.Marshal(owner_thread_); \ | |
| 334 } | |
| 335 | |
| 336 #define PROXY_CONSTMETHOD0(r, method) \ | |
| 337 r method() const override { \ | |
| 338 ConstMethodCall0<C, r> call(c_.get(), &C::method); \ | |
| 339 return call.Marshal(owner_thread_); \ | |
| 340 } | |
| 341 | |
| 342 #define PROXY_METHOD1(r, method, t1) \ | |
| 343 r method(t1 a1) override { \ | |
| 344 MethodCall1<C, r, t1> call(c_.get(), &C::method, a1); \ | |
| 345 return call.Marshal(owner_thread_); \ | |
| 346 } | |
| 347 | |
| 348 #define PROXY_CONSTMETHOD1(r, method, t1) \ | |
| 349 r method(t1 a1) const override { \ | |
| 350 ConstMethodCall1<C, r, t1> call(c_.get(), &C::method, a1); \ | |
| 351 return call.Marshal(owner_thread_); \ | |
| 352 } | |
| 353 | |
| 354 #define PROXY_METHOD2(r, method, t1, t2) \ | |
| 355 r method(t1 a1, t2 a2) override { \ | |
| 356 MethodCall2<C, r, t1, t2> call(c_.get(), &C::method, a1, a2); \ | |
| 357 return call.Marshal(owner_thread_); \ | |
| 358 } | |
| 359 | |
| 360 #define PROXY_METHOD3(r, method, t1, t2, t3) \ | |
| 361 r method(t1 a1, t2 a2, t3 a3) override { \ | |
| 362 MethodCall3<C, r, t1, t2, t3> call(c_.get(), &C::method, a1, a2, a3); \ | |
| 363 return call.Marshal(owner_thread_); \ | |
| 364 } | |
| 365 | |
| 366 #define PROXY_METHOD4(r, method, t1, t2, t3, t4) \ | |
| 367 r method(t1 a1, t2 a2, t3 a3, t4 a4) override { \ | |
| 368 MethodCall4<C, r, t1, t2, t3, t4> call(c_.get(), &C::method, a1, a2, a3, \ | |
| 369 a4); \ | |
| 370 return call.Marshal(owner_thread_); \ | |
| 371 } | |
| 372 | |
| 373 #define PROXY_METHOD5(r, method, t1, t2, t3, t4, t5) \ | |
| 374 r method(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5) override { \ | |
| 375 MethodCall5<C, r, t1, t2, t3, t4, t5> call(c_.get(), &C::method, a1, a2, \ | |
| 376 a3, a4, a5); \ | |
| 377 return call.Marshal(owner_thread_); \ | |
| 378 } | |
| 379 | |
| 380 #define END_PROXY() \ | |
| 381 private:\ | |
| 382 void Release_s() {\ | |
| 383 c_ = NULL;\ | |
| 384 }\ | |
| 385 mutable rtc::Thread* owner_thread_;\ | |
| 386 rtc::scoped_refptr<C> c_;\ | |
| 387 };\ | |
| 388 | |
| 389 } // namespace webrtc | |
| 390 | |
| 391 #endif // TALK_APP_WEBRTC_PROXY_H_ | |
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Chromium Code Reviews
Issue 1610243002:
Move talk/app/webrtc to webrtc/api (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master