Issue 4231 - Fix unstable FilterEngineTest.testSetRemoveFilterChangeCallback

libadblockplus-android/jni/JniJsEngine.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 118 matching lines @@
     AdblockPlus::FileSystemPtr fileSystem(new AdblockPlus::DefaultFileSystem());
 
     std::string basePath = JniJavaToStdString(env, jBasePath);
     reinterpret_cast<AdblockPlus::DefaultFileSystem*>(fileSystem.get())->SetBasePath(basePath);
 
     engine->SetFileSystem(fileSystem);
   }
   CATCH_AND_THROW(env)
 }
 
+static void JNICALL JniSetFileSystem(JNIEnv* env, jclass clazz, jlong ptr, jlong fileSystemPtr)
+{
+  AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
+
+  try
+  {
+    AdblockPlus::FileSystemPtr fileSystem(JniLongToTypePtr<JniFileSystemCallback>(fileSystemPtr));

[sergei, 2017/05/22 12:09:07]

This will result in double deletion because JniFileSystemCallback will be
destroyed by JsEngine and by JniDtor. I think we should use a pointer to the
smart pointer, the same as for WebRequest, for example.

[anton, 2017/05/22 13:04:38]

Acknowledged.

+
+    engine->SetFileSystem(fileSystem);
+  }
+  CATCH_AND_THROW(env)
+}
+
 static void JNICALL JniSetDefaultWebRequest(JNIEnv* env, jclass clazz, jlong ptr)
 {
   AdblockPlus::JsEnginePtr& engine = *JniLongToTypePtr<AdblockPlus::JsEnginePtr>(ptr);
 
   try
   {
     AdblockPlus::WebRequestPtr webRequest(new AdblockPlus::DefaultWebRequest());
 
     engine->SetWebRequest(webRequest);
   }
@@ skipping 86 matching lines @@
 {
   { (char*)"ctor", (char*)"(" TYP("AppInfo") ")J", (void*)JniCtor },
   { (char*)"dtor", (char*)"(J)V", (void*)JniDtor },
 
   { (char*)"setEventCallback", (char*)"(JLjava/lang/String;J)V", (void*)JniSetEventCallback },
   { (char*)"removeEventCallback", (char*)"(JLjava/lang/String;)V", (void*)JniRemoveEventCallback },
   { (char*)"triggerEvent", (char*)"(JLjava/lang/String;[J)V", (void*)JniTriggerEvent },
 
   { (char*)"evaluate", (char*)"(JLjava/lang/String;Ljava/lang/String;)" TYP("JsValue"), (void*)JniEvaluate },
 
+  { (char*)"setFileSystem", (char*)"(JJ)V", (void*)JniSetFileSystem },
   { (char*)"setDefaultFileSystem", (char*)"(JLjava/lang/String;)V", (void*)JniSetDefaultFileSystem },
   { (char*)"setLogSystem", (char*)"(JJ)V", (void*)JniSetLogSystem },
   { (char*)"setDefaultLogSystem", (char*)"(J)V", (void*)JniSetDefaultLogSystem },
   { (char*)"setWebRequest", (char*)"(JJ)V", (void*)JniSetWebRequest },
   { (char*)"setDefaultWebRequest", (char*)"(J)V", (void*)JniSetDefaultWebRequest },
 
   { (char*)"newValue", (char*)"(JJ)" TYP("JsValue"), (void*)JniNewLongValue },
   { (char*)"newValue", (char*)"(JZ)" TYP("JsValue"), (void*)JniNewBooleanValue },
   { (char*)"newValue", (char*)"(JLjava/lang/String;)" TYP("JsValue"), (void*)JniNewStringValue }
 };
 
 extern "C" JNIEXPORT void JNICALL Java_org_adblockplus_libadblockplus_JsEngine_registerNatives(JNIEnv *env, jclass clazz)
 {
   env->RegisterNatives(clazz, methods, sizeof(methods) / sizeof(methods[0]));
 }