mirror of
https://github.com/kidfromjupiter/nearby.git
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Alexey Polyudov
4baa1ce96a
Signed-off-by: Alexey Polyudov <apolyudov@google.com> Change-Id: Ie19e006429b138b3768e97dae971a43fdc5ef8bf
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef PLATFORM_API_SUBMITTABLE_EXECUTOR_H_
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#define PLATFORM_API_SUBMITTABLE_EXECUTOR_H_
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#include <functional>
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#include "platform/api/executor.h"
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#include "platform/api/future.h"
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#include "platform/api/platform.h"
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#include "platform/api/settable_future.h"
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#include "platform/api/submittable_executor_def.h"
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#include "platform/exception.h"
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namespace location {
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namespace nearby {
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// "Common" part of implementation.
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// Placed here for textual compatibility to minimize scope of changes.
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// Can be (and should be) moved to a separate file outside "api" folder.
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// TODO(apolyudov): for API v2.0
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template <typename T>
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Ptr<Future<T>> SubmittableExecutor::submit(Ptr<Callable<T>> callable) {
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using Platform = platform::ImplementationPlatform;
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Ptr<SettableFuture<T>> future{Platform::createSettableFuture<T>()};
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bool submitted = DoSubmit([callable, future]() {
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ExceptionOr<T> result = callable->call();
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if (result.ok()) {
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future->set(std::move(result.result()));
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} else {
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future->setException({result.exception()});
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}
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});
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if (!submitted) {
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// Raise Exception::kExecution if we are shutting down.
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future->setException({Exception::kExecution});
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}
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return future;
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}
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} // namespace nearby
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} // namespace location
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#endif // PLATFORM_API_SUBMITTABLE_EXECUTOR_H_
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