71 lines
1.3 KiB
C++
71 lines
1.3 KiB
C++
/*
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* Copyright 2011-2015, Haiku, Inc.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _SUPPORT_PRIVATE_JOB_QUEUE_H_
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#define _SUPPORT_PRIVATE_JOB_QUEUE_H_
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#include <Locker.h>
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#include <SupportDefs.h>
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#include <Job.h>
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namespace BSupportKit {
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namespace BPrivate {
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class JobQueue : private BJobStateListener {
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public:
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JobQueue();
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virtual ~JobQueue();
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status_t InitCheck() const;
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status_t AddJob(BJob* job);
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// takes ownership
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status_t RemoveJob(BJob* job);
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// gives up ownership
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BJob* Pop();
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status_t Pop(bigtime_t timeout, bool returnWhenEmpty,
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BJob** _job);
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// caller owns job
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size_t CountJobs() const;
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void Close();
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private:
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// BJobStateListener
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virtual void JobSucceeded(BJob* job);
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virtual void JobFailed(BJob* job);
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private:
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struct JobPriorityLess;
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class JobPriorityQueue;
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private:
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status_t _Init();
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void _RequeueDependantJobsOf(BJob* job);
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void _RemoveDependantJobsOf(BJob* job);
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mutable BLocker fLock;
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uint32 fNextTicketNumber;
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JobPriorityQueue* fQueuedJobs;
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sem_id fHaveRunnableJobSem;
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status_t fInitStatus;
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};
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} // namespace BPrivate
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} // namespace BSupportKit
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#endif // _SUPPORT_PRIVATE_JOB_QUEUE_H_
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