mirror of
https://github.com/kidfromjupiter/nearby.git
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Alexey Polyudov
de31c27947
Signed-off-by: Alexey Polyudov <apolyudov@google.com> Change-Id: I85d490e448375aa4eb7b09680757c02fff1420b4
57 lines
1.7 KiB
C++
57 lines
1.7 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 CORE_INTERNAL_LOOP_RUNNER_H_
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#define CORE_INTERNAL_LOOP_RUNNER_H_
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#include "platform/callable.h"
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#include "platform/exception.h"
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#include "platform/port/string.h"
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#include "platform/ptr.h"
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namespace location {
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namespace nearby {
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namespace connections {
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// Construct to run a loop repeatedly. This class is useful to increase
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// testability for multi-threaded code that runs loops; it shouldn't be used for
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// general purpose loops unless tests require fine-grained control over the
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// looping procedure.
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class LoopRunner {
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public:
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explicit LoopRunner(const std::string& name);
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// Runs the provided callable repeatedly until it returns false.
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//
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// @return true if the loop completed successfully, false if an exception was
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// encountered.
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bool loop(Ptr<Callable<bool> > callable);
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protected:
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void onEnterLoop();
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void onEnterIteration();
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void onExitIteration();
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void onExitLoop();
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void onExceptionExitLoop(Exception::Value exception);
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private:
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const std::string name_;
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};
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} // namespace connections
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} // namespace nearby
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} // namespace location
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#endif // CORE_INTERNAL_LOOP_RUNNER_H_
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