Files
nearby/cpp/platform/callable.h
T
Alexey Polyudov de31c27947 Initial public release of nearby library
Signed-off-by: Alexey Polyudov <apolyudov@google.com>
Change-Id: I85d490e448375aa4eb7b09680757c02fff1420b4
2020-05-04 13:16:51 -07:00

41 lines
1.2 KiB
C++

// Copyright 2020 Google LLC
//
// 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
//
// https://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.
#ifndef PLATFORM_CALLABLE_H_
#define PLATFORM_CALLABLE_H_
#include "platform/exception.h"
namespace location {
namespace nearby {
// The Callable interface should be implemented by any class whose instances are
// intended to be executed by a thread, and need to return a result. The class
// must define a method named call() with no arguments and a specific return
// type.
//
// https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Callable.html
template <typename T>
class Callable {
public:
virtual ~Callable() {}
virtual ExceptionOr<T> call() = 0;
};
} // namespace nearby
} // namespace location
#endif // PLATFORM_CALLABLE_H_