Ejemplos de JNIENV_CAST en C++ (Cpp)

Ejemplo n.º 1

Archivo: org_apache_mesos_v1_scheduler_JNIMesos.cpp Proyecto: GYGit/mesos

void JNIMesos::received(const Event& event)
{
  jvm->AttachCurrentThread(JNIENV_CAST(&env), nullptr);

  jclass clazz = env->GetObjectClass(jmesos);

  jfieldID scheduler =
    env->GetFieldID(clazz, "scheduler",
                    "Lorg/apache/mesos/v1/scheduler/Scheduler;");

  jobject jscheduler = env->GetObjectField(jmesos, scheduler);

  clazz = env->GetObjectClass(jscheduler);

  // scheduler.received(mesos, event);
  jmethodID received =
    env->GetMethodID(clazz, "received",
                     "(Lorg/apache/mesos/v1/scheduler/Mesos;"
                     "Lorg/apache/mesos/v1/scheduler/Protos$Event;)V");

  jobject jevent = convert<Event>(env, event);

  env->ExceptionClear();

  env->CallVoidMethod(jscheduler, received, jmesos, jevent);

  if (env->ExceptionCheck()) {
    env->ExceptionDescribe();
    env->ExceptionClear();
    jvm->DetachCurrentThread();
    ABORT("Exception thrown during `received` call");
  }

  jvm->DetachCurrentThread();
}

Ejemplo n.º 2

Archivo: org_apache_mesos_v1_scheduler_JNIMesos.cpp Proyecto: GYGit/mesos

void JNIMesos::connected()
{
  jvm->AttachCurrentThread(JNIENV_CAST(&env), nullptr);

  jclass clazz = env->GetObjectClass(jmesos);

  jfieldID scheduler =
    env->GetFieldID(clazz, "scheduler",
                    "Lorg/apache/mesos/v1/scheduler/Scheduler;");

  jobject jscheduler = env->GetObjectField(jmesos, scheduler);

  clazz = env->GetObjectClass(jscheduler);

  // scheduler.connected(mesos);
  jmethodID connected =
    env->GetMethodID(clazz, "connected",
                     "(Lorg/apache/mesos/v1/scheduler/Mesos;)V");

  env->ExceptionClear();

  env->CallVoidMethod(jscheduler, connected, jmesos);

  if (env->ExceptionCheck()) {
    env->ExceptionDescribe();
    env->ExceptionClear();
    jvm->DetachCurrentThread();
    ABORT("Exception thrown during `connected` call");
  }

  jvm->DetachCurrentThread();
}

Ejemplo n.º 3

Archivo: jvm.cpp Proyecto: CodeTickler/mesos

Jvm::Env::Env(bool daemon)
  : env(NULL), detach(false)
{
  JavaVM* jvm = Jvm::get()->jvm;

  // First check if we are already attached.
  int result = jvm->GetEnv(JNIENV_CAST(&env), Jvm::get()->version);

  // If we're not attached, attach now.
  if (result == JNI_EDETACHED) {
    if (daemon) {
      jvm->AttachCurrentThreadAsDaemon(JNIENV_CAST(&env), NULL);
    } else {
      jvm->AttachCurrentThread(JNIENV_CAST(&env), NULL);
    }
    detach = true;
  }
}

Ejemplo n.º 4

Archivo: jvm.cpp Proyecto: archana16kumari/mesos

Try<Jvm*> Jvm::create(
    const std::vector<std::string>& _options,
    JNI::Version version,
    bool exceptions)
{
  // TODO(benh): Make this thread-safe.
  if (instance != NULL) {
    return Error("Java Virtual Machine already created");
  }

  JavaVMInitArgs vmArgs;
  vmArgs.version = version;
  vmArgs.ignoreUnrecognized = false;

  std::vector<std::string> options = _options;

#ifdef __APPLE__
  // The Apple JNI implementation requires the AWT thread to not
  // be the main application thread. Enabling headless mode
  // circumvents the issue. Further details:
  // https://issues.apache.org/jira/browse/MESOS-524
  // http://www.oracle.com/technetwork/articles/javase/headless-136834.html
  if (std::find(options.begin(), options.end(), "-Djava.awt.headless=true")
      == options.end()) {
    options.push_back("-Djava.awt.headless=true");
  }
#endif

  JavaVMOption* opts = new JavaVMOption[options.size()];
  for (size_t i = 0; i < options.size(); i++) {
    opts[i].optionString = const_cast<char*>(options[i].c_str());
  }
  vmArgs.nOptions = options.size();
  vmArgs.options = opts;

  JavaVM* jvm = NULL;
  JNIEnv* env = NULL;

  int result = JNI_CreateJavaVM(&jvm, JNIENV_CAST(&env), &vmArgs);

  if (result == JNI_ERR) {
    return Error("Failed to create JVM!");
  }

  delete[] opts;

  return instance = new Jvm(jvm, version, exceptions);
}

Ejemplo n.º 5

Archivo: jvm.cpp Proyecto: CodeTickler/mesos

Try<Jvm*> Jvm::create(
    const std::vector<std::string>& _options,
    JNI::Version version,
    bool exceptions)
{
  // TODO(benh): Make this thread-safe.
  if (instance != NULL) {
    return Error("Java Virtual Machine already created");
  }

  JavaVMInitArgs vmArgs;
  vmArgs.version = version;
  vmArgs.ignoreUnrecognized = false;

  std::vector<std::string> options = _options;

#ifdef __APPLE__
  // The Apple JNI implementation requires the AWT thread to not
  // be the main application thread. Enabling headless mode
  // circumvents the issue. Further details:
  // https://issues.apache.org/jira/browse/MESOS-524
  // http://www.oracle.com/technetwork/articles/javase/headless-136834.html
  if (std::find(options.begin(), options.end(), "-Djava.awt.headless=true")
      == options.end()) {
    options.push_back("-Djava.awt.headless=true");
  }
#endif

  JavaVMOption* opts = new JavaVMOption[options.size()];
  for (size_t i = 0; i < options.size(); i++) {
    opts[i].optionString = const_cast<char*>(options[i].c_str());
  }
  vmArgs.nOptions = options.size();
  vmArgs.options = opts;

  JavaVM* jvm = NULL;
  JNIEnv* env = NULL;
  Option<std::string> libJvmPath = os::getenv("JAVA_JVM_LIBRARY");

  if (libJvmPath.isNone()) {
    libJvmPath = mesos::internal::build::JAVA_JVM_LIBRARY;
  }

  static DynamicLibrary* libJvm = new DynamicLibrary();
  Try<Nothing> openResult = libJvm->open(libJvmPath.get());

  if (openResult.isError()) {
    return Error(openResult.error());
  }

  Try<void*> symbol = libJvm->loadSymbol("JNI_CreateJavaVM");

  if (symbol.isError()) {
    libJvm->close();
    return Error(symbol.error());
  }

  // typedef function pointer to JNI.
  typedef jint (*fnptr_JNI_CreateJavaVM)(JavaVM**, void**, void*);

  fnptr_JNI_CreateJavaVM fn_JNI_CreateJavaVM =
    (fnptr_JNI_CreateJavaVM)symbol.get();

  int createResult = fn_JNI_CreateJavaVM(&jvm, JNIENV_CAST(&env), &vmArgs);

  if (createResult == JNI_ERR) {
    libJvm->close();
    return Error("Failed to create JVM!");
  }

  delete[] opts;

  return instance = new Jvm(jvm, version, exceptions);
}