1 /* 2 * Copyright 2015 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 // Android's FindClass() is trickier than usual because the app-specific 12 // ClassLoader is not consulted when there is no app-specific frame on the 13 // stack. Consequently, we only look up all classes once in app/webrtc. 14 // http://developer.android.com/training/articles/perf-jni.html#faq_FindClass 15 16 #ifndef WEBRTC_SDK_ANDROID_SRC_JNI_CLASSREFERENCEHOLDER_H_ 17 #define WEBRTC_SDK_ANDROID_SRC_JNI_CLASSREFERENCEHOLDER_H_ 18 19 #include <jni.h> 20 #include <map> 21 #include <string> 22 23 namespace webrtc_jni { 24 25 // LoadGlobalClassReferenceHolder must be called in JNI_OnLoad. 26 void LoadGlobalClassReferenceHolder(); 27 // FreeGlobalClassReferenceHolder must be called in JNI_UnLoad. 28 void FreeGlobalClassReferenceHolder(); 29 30 // Returns a global reference guaranteed to be valid for the lifetime of the 31 // process. 32 jclass FindClass(JNIEnv* jni, const char* name); 33 34 // Convenience macro defining JNI-accessible methods in the org.webrtc package. 35 // Eliminates unnecessary boilerplate and line-wraps, reducing visual clutter. 36 #define JOW(rettype, name) \ 37 extern "C" JNIEXPORT rettype JNICALL Java_org_webrtc_##name 38 39 } // namespace webrtc_jni 40 41 #endif // WEBRTC_SDK_ANDROID_SRC_JNI_CLASSREFERENCEHOLDER_H_ 42