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93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
//------------------------------------------------------------------------------
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/*
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Copyright (c) 2011-2013, OpenCoin, Inc.
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*/
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//==============================================================================
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#ifndef RIPPLE_JOBQUEUE_H_INCLUDED
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#define RIPPLE_JOBQUEUE_H_INCLUDED
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class JobQueue : private Workers::Callback
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{
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public:
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// Statistics on a particular JobType
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struct Count
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{
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Count () noexcept;
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explicit Count (JobType type) noexcept;
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JobType type; // The type of Job these counts reflect
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int waiting; // The number waiting
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int running; // How many are running
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int deferred; // Number of jobs we didn't signal due to limits
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};
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typedef std::map <JobType, Count> JobCounts;
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//--------------------------------------------------------------------------
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JobQueue ();
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~JobQueue ();
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// VFALCO TODO make convenience functions that allow the caller to not
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// have to call bind.
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//
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void addJob (JobType type, const std::string& name, const FUNCTION_TYPE<void (Job&)>& job);
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int getJobCount (JobType t); // Jobs waiting at this priority
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int getJobCountTotal (JobType t); // Jobs waiting plus running at this priority
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int getJobCountGE (JobType t); // All waiting jobs at or greater than this priority
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std::vector< std::pair<JobType, std::pair<int, int> > > getJobCounts (); // jobs waiting, threads doing
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void shutdown ();
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void setThreadCount (int c, bool const standaloneMode);
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// VFALCO TODO Rename these to newLoadEventMeasurement or something similar
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// since they create the object.
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//
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LoadEvent::pointer getLoadEvent (JobType t, const std::string& name)
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{
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return boost::make_shared<LoadEvent> (boost::ref (mJobLoads[t]), name, true);
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}
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// VFALCO TODO Why do we need two versions, one which returns a shared
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// pointer and the other which returns an autoptr?
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//
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LoadEvent::autoptr getLoadEventAP (JobType t, const std::string& name)
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{
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return LoadEvent::autoptr (new LoadEvent (mJobLoads[t], name, true));
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}
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bool isOverloaded ();
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Json::Value getJson (int c = 0);
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private:
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typedef boost::mutex JobLockType;
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typedef JobLockType::scoped_lock ScopedLockType;
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typedef std::set <Job> JobSet;
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void queueJob (Job const& job, ScopedLockType&);
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void getNextJob (Job& job, ScopedLockType&);
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void finishJob (Job const& job);
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void processTask ();
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static int getJobLimit (JobType type);
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private:
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Workers m_workers;
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JobLockType mJobLock;
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uint64 mLastJob;
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JobSet mJobSet;
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LoadMonitor mJobLoads [NUM_JOB_TYPES];
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JobCounts mJobCounts;
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};
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#endif
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