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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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