Home | History | Annotate | Download | only in jni_generator 
      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // This file is autogenerated by
      6 //     base/android/jni_generator/jni_generator.py
      7 // For
      8 //     org/chromium/foo/Foo
      9 
     10 #ifndef org_chromium_foo_Foo_JNI
     11 #define org_chromium_foo_Foo_JNI
     12 
     13 #include <jni.h>
     14 
     15 #include "base/android/jni_generator/jni_generator_helper.h"
     16 
     17 #include "base/android/jni_int_wrapper.h"
     18 
     19 // Step 1: forward declarations.
     20 namespace {
     21 const char kFooClassPath[] = "org/chromium/foo/Foo";
     22 // Leaking this jclass as we cannot use LazyInstance from some threads.
     23 jclass g_Foo_clazz = NULL;
     24 #define Foo_clazz(env) g_Foo_clazz
     25 
     26 }  // namespace
     27 
     28 static void DoSomething(JNIEnv* env, jclass jcaller,
     29     jobject callback1,
     30     jobject callback2);
     31 
     32 // Step 2: method stubs.
     33 
     34 static base::subtle::AtomicWord g_Foo_calledByNative = 0;
     35 static void Java_Foo_calledByNative(JNIEnv* env, jobject callback1,
     36     jobject callback2) {
     37   /* Must call RegisterNativesImpl()  */
     38   CHECK_CLAZZ(env, Foo_clazz(env),
     39       Foo_clazz(env));
     40   jmethodID method_id =
     41       base::android::MethodID::LazyGet<
     42       base::android::MethodID::TYPE_STATIC>(
     43       env, Foo_clazz(env),
     44       "calledByNative",
     45 
     46 "("
     47 "Lorg/chromium/foo/Bar1$Callback;"
     48 "Lorg/chromium/foo/Bar2$Callback;"
     49 ")"
     50 "V",
     51       &g_Foo_calledByNative);
     52 
     53      env->CallStaticVoidMethod(Foo_clazz(env),
     54           method_id, callback1, callback2);
     55   jni_generator::CheckException(env);
     56 
     57 }
     58 
     59 // Step 3: RegisterNatives.
     60 
     61 static const JNINativeMethod kMethodsFoo[] = {
     62     { "nativeDoSomething",
     63 "("
     64 "Lorg/chromium/foo/Bar1$Callback;"
     65 "Lorg/chromium/foo/Bar2$Callback;"
     66 ")"
     67 "V", reinterpret_cast<void*>(DoSomething) },
     68 };
     69 
     70 static bool RegisterNativesImpl(JNIEnv* env) {
     71   g_Foo_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
     72       base::android::GetClass(env, kFooClassPath).obj()));
     73 
     74   const int kMethodsFooSize = arraysize(kMethodsFoo);
     75 
     76   if (env->RegisterNatives(Foo_clazz(env),
     77                            kMethodsFoo,
     78                            kMethodsFooSize) < 0) {
     79     jni_generator::HandleRegistrationError(
     80         env, Foo_clazz(env), __FILE__);
     81     return false;
     82   }
     83 
     84   return true;
     85 }
     86 
     87 #endif  // org_chromium_foo_Foo_JNI
     88