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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "vespa/vespalib/util/idestructorcallback.h"
#include <vespa/vespalib/util/executor.h>
namespace search {
/**
* Class that schedules a task when instance is destroyed. Typically a
* shared pointer to an instance is passed around to multiple worker
* threads that performs portions of a larger task before dropping the
* shared pointer, triggering the callback when all worker threads
* have completed.
*/
class ScheduleTaskCallback : public vespalib::IDestructorCallback
{
vespalib::Executor &_executor;
vespalib::Executor::Task::UP _task;
public:
ScheduleTaskCallback(vespalib::Executor &executor,
vespalib::Executor::Task::UP task) noexcept
: _executor(executor),
_task(std::move(task))
{}
~ScheduleTaskCallback() override {
_executor.execute(std::move(_task));
}
};
} // namespace search
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