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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2015 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 #include "talk/app/webrtc/java/jni/classreferenceholder.h" | |
| 29 | |
| 30 #include "talk/app/webrtc/java/jni/jni_helpers.h" | |
| 31 | |
| 32 namespace webrtc_jni { | |
| 33 | |
| 34 // ClassReferenceHolder holds global reference to Java classes in app/webrtc. | |
| 35 class ClassReferenceHolder { | |
| 36 public: | |
| 37 explicit ClassReferenceHolder(JNIEnv* jni); | |
| 38 ~ClassReferenceHolder(); | |
| 39 | |
| 40 void FreeReferences(JNIEnv* jni); | |
| 41 jclass GetClass(const std::string& name); | |
| 42 | |
| 43 private: | |
| 44 void LoadClass(JNIEnv* jni, const std::string& name); | |
| 45 | |
| 46 std::map<std::string, jclass> classes_; | |
| 47 }; | |
| 48 | |
| 49 // Allocated in LoadGlobalClassReferenceHolder(), | |
| 50 // freed in FreeGlobalClassReferenceHolder(). | |
| 51 static ClassReferenceHolder* g_class_reference_holder = nullptr; | |
| 52 | |
| 53 void LoadGlobalClassReferenceHolder() { | |
| 54 RTC_CHECK(g_class_reference_holder == nullptr); | |
| 55 g_class_reference_holder = new ClassReferenceHolder(GetEnv()); | |
| 56 } | |
| 57 | |
| 58 void FreeGlobalClassReferenceHolder() { | |
| 59 g_class_reference_holder->FreeReferences(AttachCurrentThreadIfNeeded()); | |
| 60 delete g_class_reference_holder; | |
| 61 g_class_reference_holder = nullptr; | |
| 62 } | |
| 63 | |
| 64 ClassReferenceHolder::ClassReferenceHolder(JNIEnv* jni) { | |
| 65 LoadClass(jni, "android/graphics/SurfaceTexture"); | |
| 66 LoadClass(jni, "java/nio/ByteBuffer"); | |
| 67 LoadClass(jni, "java/util/ArrayList"); | |
| 68 LoadClass(jni, "org/webrtc/AudioTrack"); | |
| 69 LoadClass(jni, "org/webrtc/CameraEnumerator"); | |
| 70 LoadClass(jni, "org/webrtc/Camera2Enumerator"); | |
| 71 LoadClass(jni, "org/webrtc/CameraEnumerationAndroid"); | |
| 72 LoadClass(jni, "org/webrtc/DataChannel"); | |
| 73 LoadClass(jni, "org/webrtc/DataChannel$Buffer"); | |
| 74 LoadClass(jni, "org/webrtc/DataChannel$Init"); | |
| 75 LoadClass(jni, "org/webrtc/DataChannel$State"); | |
| 76 LoadClass(jni, "org/webrtc/EglBase"); | |
| 77 LoadClass(jni, "org/webrtc/EglBase$Context"); | |
| 78 LoadClass(jni, "org/webrtc/EglBase14$Context"); | |
| 79 LoadClass(jni, "org/webrtc/IceCandidate"); | |
| 80 LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder"); | |
| 81 LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder$OutputBufferInfo"); | |
| 82 LoadClass(jni, "org/webrtc/MediaCodecVideoEncoder$VideoCodecType"); | |
| 83 LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder"); | |
| 84 LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$DecodedTextureBuffer"); | |
| 85 LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$DecodedOutputBuffer"); | |
| 86 LoadClass(jni, "org/webrtc/MediaCodecVideoDecoder$VideoCodecType"); | |
| 87 LoadClass(jni, "org/webrtc/MediaSource$State"); | |
| 88 LoadClass(jni, "org/webrtc/MediaStream"); | |
| 89 LoadClass(jni, "org/webrtc/MediaStreamTrack$State"); | |
| 90 LoadClass(jni, "org/webrtc/NetworkMonitor"); | |
| 91 LoadClass(jni, "org/webrtc/NetworkMonitorAutoDetect$ConnectionType"); | |
| 92 LoadClass(jni, "org/webrtc/NetworkMonitorAutoDetect$IPAddress"); | |
| 93 LoadClass(jni, "org/webrtc/NetworkMonitorAutoDetect$NetworkInformation"); | |
| 94 LoadClass(jni, "org/webrtc/PeerConnectionFactory"); | |
| 95 LoadClass(jni, "org/webrtc/PeerConnection$BundlePolicy"); | |
| 96 LoadClass(jni, "org/webrtc/PeerConnection$ContinualGatheringPolicy"); | |
| 97 LoadClass(jni, "org/webrtc/PeerConnection$RtcpMuxPolicy"); | |
| 98 LoadClass(jni, "org/webrtc/PeerConnection$IceConnectionState"); | |
| 99 LoadClass(jni, "org/webrtc/PeerConnection$IceGatheringState"); | |
| 100 LoadClass(jni, "org/webrtc/PeerConnection$IceTransportsType"); | |
| 101 LoadClass(jni, "org/webrtc/PeerConnection$TcpCandidatePolicy"); | |
| 102 LoadClass(jni, "org/webrtc/PeerConnection$KeyType"); | |
| 103 LoadClass(jni, "org/webrtc/PeerConnection$SignalingState"); | |
| 104 LoadClass(jni, "org/webrtc/RtpReceiver"); | |
| 105 LoadClass(jni, "org/webrtc/RtpSender"); | |
| 106 LoadClass(jni, "org/webrtc/SessionDescription"); | |
| 107 LoadClass(jni, "org/webrtc/SessionDescription$Type"); | |
| 108 LoadClass(jni, "org/webrtc/StatsReport"); | |
| 109 LoadClass(jni, "org/webrtc/StatsReport$Value"); | |
| 110 LoadClass(jni, "org/webrtc/SurfaceTextureHelper"); | |
| 111 LoadClass(jni, "org/webrtc/VideoCapturerAndroid"); | |
| 112 LoadClass(jni, "org/webrtc/VideoCapturerAndroid$NativeObserver"); | |
| 113 LoadClass(jni, "org/webrtc/VideoRenderer$I420Frame"); | |
| 114 LoadClass(jni, "org/webrtc/VideoTrack"); | |
| 115 } | |
| 116 | |
| 117 ClassReferenceHolder::~ClassReferenceHolder() { | |
| 118 RTC_CHECK(classes_.empty()) << "Must call FreeReferences() before dtor!"; | |
| 119 } | |
| 120 | |
| 121 void ClassReferenceHolder::FreeReferences(JNIEnv* jni) { | |
| 122 for (std::map<std::string, jclass>::const_iterator it = classes_.begin(); | |
| 123 it != classes_.end(); ++it) { | |
| 124 jni->DeleteGlobalRef(it->second); | |
| 125 } | |
| 126 classes_.clear(); | |
| 127 } | |
| 128 | |
| 129 jclass ClassReferenceHolder::GetClass(const std::string& name) { | |
| 130 std::map<std::string, jclass>::iterator it = classes_.find(name); | |
| 131 RTC_CHECK(it != classes_.end()) << "Unexpected GetClass() call for: " << name; | |
| 132 return it->second; | |
| 133 } | |
| 134 | |
| 135 void ClassReferenceHolder::LoadClass(JNIEnv* jni, const std::string& name) { | |
| 136 jclass localRef = jni->FindClass(name.c_str()); | |
| 137 CHECK_EXCEPTION(jni) << "error during FindClass: " << name; | |
| 138 RTC_CHECK(localRef) << name; | |
| 139 jclass globalRef = reinterpret_cast<jclass>(jni->NewGlobalRef(localRef)); | |
| 140 CHECK_EXCEPTION(jni) << "error during NewGlobalRef: " << name; | |
| 141 RTC_CHECK(globalRef) << name; | |
| 142 bool inserted = classes_.insert(std::make_pair(name, globalRef)).second; | |
| 143 RTC_CHECK(inserted) << "Duplicate class name: " << name; | |
| 144 } | |
| 145 | |
| 146 // Returns a global reference guaranteed to be valid for the lifetime of the | |
| 147 // process. | |
| 148 jclass FindClass(JNIEnv* jni, const char* name) { | |
| 149 return g_class_reference_holder->GetClass(name); | |
| 150 } | |
| 151 | |
| 152 } // namespace webrtc_jni | |
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