xref: /aosp_15_r20/external/fbjni/cxx/fbjni/JThread.h (revision 65c59e023c5336bbd4a23be7af78407e3d80e7e7)

/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#pragma once

#include <fbjni/NativeRunnable.h>
#include <fbjni/fbjni.h>

namespace facebook {
namespace jni {

class JThread : public JavaClass<JThread> {
 public:
  static constexpr const char* kJavaDescriptor = "Ljava/lang/Thread;";

  void start() {
    static const auto method = javaClassStatic()->getMethod<void()>("start");
    method(self());
  }

  void join() {
    static const auto method = javaClassStatic()->getMethod<void()>("join");
    method(self());
  }

  static local_ref<JThread> create(std::function<void()>&& runnable) {
    auto jrunnable = JNativeRunnable::newObjectCxxArgs(std::move(runnable));
    return newInstance(static_ref_cast<JRunnable>(jrunnable));
  }

  static local_ref<JThread> create(
      std::function<void()>&& runnable,
      std::string&& name) {
    auto jrunnable = JNativeRunnable::newObjectCxxArgs(std::move(runnable));
    return newInstance(
        static_ref_cast<JRunnable>(jrunnable), make_jstring(std::move(name)));
  }

  static local_ref<JThread> getCurrent() {
    static const auto method =
        javaClassStatic()->getStaticMethod<local_ref<JThread>()>(
            "currentThread");
    return method(javaClassStatic());
  }

  int getPriority() {
    static const auto method = getClass()->getMethod<jint()>("getPriority");
    return method(self());
  }

  void setPriority(int priority) {
    static const auto method = getClass()->getMethod<void(int)>("setPriority");
    method(self(), priority);
  }

  void setName(const std::string& name) {
    static const auto method =
        getClass()->getMethod<void(alias_ref<JString>)>("setName");
    method(self(), make_jstring(std::move(name)));
  }
};

} // namespace jni
} // namespace facebook