1 /* 2 * Copyright (c) 2011 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 MODULES_INTERFACE_MODULE_H_ 12 #define MODULES_INTERFACE_MODULE_H_ 13 14 #include <assert.h> 15 16 #include "typedefs.h" 17 18 namespace webrtc { 19 20 class Module { 21 public: 22 // Change the unique identifier of this object. 23 virtual int32_t ChangeUniqueId(const int32_t id) = 0; 24 25 // Returns the number of milliseconds until the module want a worker 26 // thread to call Process. 27 virtual int32_t TimeUntilNextProcess() = 0; 28 29 // Process any pending tasks such as timeouts. 30 virtual int32_t Process() = 0; 31 32 protected: ~Module()33 virtual ~Module() {} 34 }; 35 36 // Reference counted version of the module interface. 37 class RefCountedModule : public Module { 38 public: 39 // Increase the reference count by one. 40 // Returns the incremented reference count. 41 // TODO(perkj): Make this pure virtual when Chromium have implemented 42 // reference counting ADM and Video capture module. AddRef()43 virtual int32_t AddRef() { 44 assert(!"Not implemented."); 45 return 1; 46 } 47 48 // Decrease the reference count by one. 49 // Returns the decreased reference count. 50 // Returns 0 if the last reference was just released. 51 // When the reference count reach 0 the object will self-destruct. 52 // TODO(perkj): Make this pure virtual when Chromium have implemented 53 // reference counting ADM and Video capture module. Release()54 virtual int32_t Release() { 55 assert(!"Not implemented."); 56 return 1; 57 } 58 59 protected: ~RefCountedModule()60 virtual ~RefCountedModule() {} 61 }; 62 63 } // namespace webrtc 64 65 #endif // MODULES_INTERFACE_MODULE_H_ 66