32 lines
898 B
C++
32 lines
898 B
C++
#ifndef TASKEXECUTOR_H
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#define TASKEXECUTOR_H
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/* From answer by Hatter
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*
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* https://stackoverflow.com/questions/5423058/qfuture-that-can-be-cancelled-and-report-progress
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*/
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#include "ControllableTask.h"
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#include "RunControllableTask.h"
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/**
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* @brief The TaskExecutor class
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*
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* The user should sublass ControllableTask, implement background routine which checks sometimes
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* method shouldRun() of TaskControl instance passed to run(TaskControl&) and then use it like:
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*
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* QFututre<int> futureValue = TaskExecutor::run(new SomeControllableTask(inputForThatTask));
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*
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* Then she may cancel it by calling futureValue.cancel(), bearing in mind that cancellation is
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* graceful and not immediate.
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*
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*/
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class TaskExecutor {
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public:
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template <class T>
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static QFuture<T> run(ControllableTask<T>* task) {
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return (new RunControllableTask<T>(task))->start();
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}
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};
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#endif // TASKEXECUTOR_H
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