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      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 // Step 2: method stubs.
     29 
     30 static void DoSomething(JNIEnv* env, const JavaParamRef<jclass>& jcaller,
     31     const JavaParamRef<jobject>& callback1,
     32     const JavaParamRef<jobject>& callback2);
     33 
     34 static void Java_org_chromium_foo_Foo_nativeDoSomething(JNIEnv* env, jclass
     35     jcaller,
     36     jobject callback1,
     37     jobject callback2) {
     38   return DoSomething(env, JavaParamRef<jclass>(env, jcaller),
     39       JavaParamRef<jobject>(env, callback1), JavaParamRef<jobject>(env,
     40       callback2));
     41 }
     42 
     43 static base::subtle::AtomicWord g_Foo_calledByNative = 0;
     44 static void Java_Foo_calledByNative(JNIEnv* env, jobject callback1,
     45     jobject callback2) {
     46   /* Must call RegisterNativesImpl()  */
     47   CHECK_CLAZZ(env, Foo_clazz(env),
     48       Foo_clazz(env));
     49   jmethodID method_id =
     50       base::android::MethodID::LazyGet<
     51       base::android::MethodID::TYPE_STATIC>(
     52       env, Foo_clazz(env),
     53       "calledByNative",
     54 
     55 "("
     56 "Lorg/chromium/foo/Bar1$Callback;"
     57 "Lorg/chromium/foo/Bar2$Callback;"
     58 ")"
     59 "V",
     60       &g_Foo_calledByNative);
     61 
     62      env->CallStaticVoidMethod(Foo_clazz(env),
     63           method_id, callback1, callback2);
     64   jni_generator::CheckException(env);
     65 
     66 }
     67 
     68 // Step 3: RegisterNatives.
     69 
     70 static const JNINativeMethod kMethodsFoo[] = {
     71     { "nativeDoSomething",
     72 "("
     73 "Lorg/chromium/foo/Bar1$Callback;"
     74 "Lorg/chromium/foo/Bar2$Callback;"
     75 ")"
     76 "V", reinterpret_cast<void*>(Java_org_chromium_foo_Foo_nativeDoSomething) },
     77 };
     78 
     79 static bool RegisterNativesImpl(JNIEnv* env) {
     80 
     81   g_Foo_clazz = reinterpret_cast<jclass>(env->NewGlobalRef(
     82       base::android::GetClass(env, kFooClassPath).obj()));
     83 
     84   const int kMethodsFooSize = arraysize(kMethodsFoo);
     85 
     86   if (env->RegisterNatives(Foo_clazz(env),
     87                            kMethodsFoo,
     88                            kMethodsFooSize) < 0) {
     89     jni_generator::HandleRegistrationError(
     90         env, Foo_clazz(env), __FILE__);
     91     return false;
     92   }
     93 
     94   return true;
     95 }
     96 
     97 #endif  // org_chromium_foo_Foo_JNI
     98