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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 | |
| 29 // Android's FindClass() is trickier than usual because the app-specific | |
| 30 // ClassLoader is not consulted when there is no app-specific frame on the | |
| 31 // stack. Consequently, we only look up all classes once in app/webrtc. | |
| 32 // http://developer.android.com/training/articles/perf-jni.html#faq_FindClass | |
| 33 | |
| 34 #ifndef TALK_APP_WEBRTC_JAVA_JNI_CLASSREFERENCEHOLDER_H_ | |
| 35 #define TALK_APP_WEBRTC_JAVA_JNI_CLASSREFERENCEHOLDER_H_ | |
| 36 | |
| 37 #include <jni.h> | |
| 38 #include <map> | |
| 39 #include <string> | |
| 40 | |
| 41 namespace webrtc_jni { | |
| 42 | |
| 43 // LoadGlobalClassReferenceHolder must be called in JNI_OnLoad. | |
| 44 void LoadGlobalClassReferenceHolder(); | |
| 45 // FreeGlobalClassReferenceHolder must be called in JNI_UnLoad. | |
| 46 void FreeGlobalClassReferenceHolder(); | |
| 47 | |
| 48 // Returns a global reference guaranteed to be valid for the lifetime of the | |
| 49 // process. | |
| 50 jclass FindClass(JNIEnv* jni, const char* name); | |
| 51 | |
| 52 // Convenience macro defining JNI-accessible methods in the org.webrtc package. | |
| 53 // Eliminates unnecessary boilerplate and line-wraps, reducing visual clutter. | |
| 54 #define JOW(rettype, name) extern "C" rettype JNIEXPORT JNICALL \ | |
| 55 Java_org_webrtc_##name | |
| 56 | |
| 57 } // namespace webrtc_jni | |
| 58 | |
| 59 #endif // TALK_APP_WEBRTC_JAVA_JNI_CLASSREFERENCEHOLDER_H_ | |
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