XrdScheduler Class Reference

#include <XrdScheduler.hh>

Inheritance diagram for XrdScheduler:

Collaboration diagram for XrdScheduler:

Public Member Functions
int	Active ()
void	Cancel (XrdJob *jp)
int	canStick ()
void	DoIt ()
pid_t	Fork (const char *id)
void *	Reaper ()
void	Run ()
void	Schedule (XrdJob *jp)
void	Schedule (int num, XrdJob *jfirst, XrdJob *jlast)
void	Schedule (XrdJob *jp, time_t atime)
void	setParms (int minw, int maxw, int avlt, int maxi, int once=0)
void	Start ()
int	Stats (char *buff, int blen, int do_sync=0)
void	TimeSched ()
	XrdScheduler (XrdSysError *eP, XrdOucTrace *tP, int minw=8, int maxw=2048, int maxi=780)
	~XrdScheduler ()
Public Member Functions inherited from XrdJob
	XrdJob (const char *desc="")
virtual	~XrdJob ()

Public Attributes
int	num_TCreate
int	num_TDestroy
int	num_Jobs
int	max_QLength
int	num_Limited
Public Attributes inherited from XrdJob
XrdJob *	NextJob
const char *	Comment

Private Member Functions
void	hireWorker (int dotrace=1)
void	Monitor ()
void	traceExit (pid_t pid, int status)

Private Attributes
XrdSysError *	XrdLog
XrdOucTrace *	XrdTrace
XrdSysMutex	DispatchMutex
int	idl_Workers
int	min_Workers
int	max_Workers
int	max_Workidl
int	num_Workers
int	stk_Workers
int	num_JobsinQ
int	num_Layoffs
XrdJob *	WorkFirst
XrdJob *	WorkLast
XrdSysSemaphore	WorkAvail
XrdSysMutex	SchedMutex
XrdJob *	TimerQueue
XrdSysCondVar	TimerRings
XrdSysMutex	TimerMutex
XrdSchedulerPID *	firstPID
XrdSysMutex	ReaperMutex

Static Private Attributes
static const char *	TraceID = "Sched"

Constructor & Destructor Documentation

XrdScheduler::XrdScheduler	(	XrdSysError *	eP,
		XrdOucTrace *	tP,
		int	minw = 8,
		int	maxw = 2048,
		int	maxi = 780
	)

References firstPID, idl_Workers, max_QLength, max_Workers, max_Workidl, min_Workers, num_Jobs, num_JobsinQ, num_Layoffs, num_Limited, num_TCreate, num_TDestroy, num_Workers, stk_Workers, TimerQueue, WorkFirst, WorkLast, XrdLog, and XrdTrace.

XrdScheduler::~XrdScheduler

(

)

Member Function Documentation

int XrdScheduler::Active ( )

inline

References idl_Workers, num_JobsinQ, and num_Workers.

Referenced by XrdStats::Report().

void XrdScheduler::Cancel

(

XrdJob *

jp

)

References XrdJob::Comment, XrdSysMutex::Lock(), XrdJob::NextJob, TimerMutex, TimerQueue, TRACE, and XrdSysMutex::UnLock().

Referenced by Schedule(), setParms(), and XrdXrootdJob::~XrdXrootdJob().

int XrdScheduler::canStick ( )

inline

References idl_Workers, num_Workers, and stk_Workers.

Referenced by XrdLink::DoIt().

void XrdScheduler::DoIt ( )

virtual

Implements XrdJob.

References DispatchMutex, idl_Workers, XrdSysMutex::Lock(), max_Workidl, min_Workers, num_JobsinQ, num_Layoffs, num_Workers, XrdSysSemaphore::Post(), SchedMutex, Schedule(), TRACE, XrdSysMutex::UnLock(), and WorkAvail.

pid_t XrdScheduler::Fork

(

const char *

id

)

References XrdSysError::Emsg(), firstPID, XrdSysMutex::Lock(), ReaperMutex, XrdSysThread::Run(), XrdSysMutex::UnLock(), XrdLog, and XrdStartReaper().

Referenced by XrdRootdProtocol::Match().

void XrdScheduler::hireWorker ( int  dotrace = 1 )

private

References XrdSysError::Emsg(), XrdSysMutex::Lock(), max_Workers, min_Workers, num_Limited, num_TCreate, num_Workers, XrdSysThread::Run(), SchedMutex, stk_Workers, TRACE, XrdSysMutex::UnLock(), XrdLog, and XrdStartWorking().

Referenced by Run(), and Start().

void XrdScheduler::Monitor ( )

private

void * XrdScheduler::Reaper

(

)

References firstPID, XrdSysMutex::Lock(), XrdSchedulerPID::next, XrdSchedulerPID::pid, ReaperMutex, TRACE_SCHED, traceExit(), TRACING, and XrdSysMutex::UnLock().

Referenced by XrdStartReaper().

void XrdScheduler::Run

(

)

References XrdJob::Comment, DispatchMutex, XrdJob::DoIt(), XrdSysError::Emsg(), hireWorker(), idl_Workers, XrdSysMutex::Lock(), XrdJob::NextJob, num_JobsinQ, num_Layoffs, num_TDestroy, num_Workers, SchedMutex, TRACE, XrdSysMutex::UnLock(), XrdSysSemaphore::Wait(), WorkAvail, WorkFirst, WorkLast, and XrdLog.

Referenced by XrdStartWorking().

void XrdScheduler::Schedule

(

XrdJob *

jp

)

References XrdSysMutex::Lock(), max_QLength, XrdJob::NextJob, num_Jobs, num_JobsinQ, XrdSysSemaphore::Post(), SchedMutex, XrdSysMutex::UnLock(), WorkAvail, WorkFirst, and WorkLast.

Referenced by XrdXrootdJob::CleanUp(), XrdCmsConfig::Configure2(), XrdPollDev::Disable(), XrdPollE::Disable(), XrdPollPoll::Disable(), XrdCmsProtocol::Dispatch(), XrdXrootdProtocol::do_Offload(), XrdCmsNode::do_SelPrep(), XrdCmsJob::DoIt(), DoIt(), XrdXrootdMonFile::DoIt(), XrdXrootdJob::DoIt(), XrdCmsPrepare::DoIt(), XrdCmsConfig::DoIt(), XrdStatsJob::DoIt(), XrdXrootdPrepare::DoIt(), XrdObjectQ< T >::DoIt(), XrdLogWorker::DoIt(), XrdXrootdMonitor_Ident::DoIt(), XrdXrootdMonitor_Tick::DoIt(), XrdXrootdCallBack::Done(), XrdXrootdAio::doneRead(), XrdXrootdAio::doneWrite(), XrdCmsCluster::Drop(), XrdLinkScan::idleScan(), XrdXrootdMonFile::Init(), XrdXrootdMonitor::Init(), mainAccept(), mainAdmin(), XrdXrootdJob2Do::Redrive(), XrdCmsPrepare::Reset(), XrdPollPoll::Restart(), XrdXrootdJob::Schedule(), XrdObjectQ< T >::Set(), setParms(), XrdLink::Setup(), XrdPollDev::Start(), XrdPollE::Start(), XrdPollPoll::Start(), Start(), XrdXrootdMonitor::startClock(), XrdCmsCache::TickTock(), TimeSched(), XrdCmsDrop::XrdCmsDrop(), XrdLogWorker::XrdLogWorker(), XrdStatsJob::XrdStatsJob(), XrdXrootdJob::XrdXrootdJob(), and XrdXrootdPrepare::XrdXrootdPrepare().

void XrdScheduler::Schedule	(	int	num,
		XrdJob *	jfirst,
		XrdJob *	jlast
	)

References XrdSysMutex::Lock(), max_QLength, XrdJob::NextJob, num_Jobs, num_JobsinQ, XrdSysSemaphore::Post(), SchedMutex, XrdSysMutex::UnLock(), WorkAvail, WorkFirst, and WorkLast.

void XrdScheduler::Schedule	(	XrdJob *	jp,
		time_t	atime
	)

References Cancel(), XrdJob::Comment, XrdSysMutex::Lock(), XrdJob::NextJob, XrdJob::SchedTime, XrdSysCondVar::Signal(), TimerMutex, TimerQueue, TimerRings, TRACE, and XrdSysMutex::UnLock().

void XrdScheduler::setParms	(	int	minw,
		int	maxw,
		int	avlt,
		int	maxi,
		int	once = 0
	)

References Cancel(), XrdSysMutex::Lock(), max_Workers, max_Workidl, min_Workers, SchedMutex, Schedule(), stk_Workers, TRACE, and XrdSysMutex::UnLock().

Referenced by XrdConfig::xsched().

void XrdScheduler::Start

(

)

References XrdSysError::Emsg(), hireWorker(), max_Workidl, min_Workers, num_Workers, XrdSysThread::Run(), Schedule(), TRACE, XrdLog, XrdStartTSched(), and XRDSYSTHREAD_BIND.

Referenced by XrdConfig::Setup().

int XrdScheduler::Stats	(	char *	buff,
		int	blen,
		int	do_sync = 0
	)

References DispatchMutex, idl_Workers, XrdSysMutex::Lock(), max_QLength, num_Jobs, num_JobsinQ, num_Limited, num_TCreate, num_TDestroy, num_Workers, SchedMutex, and XrdSysMutex::UnLock().

Referenced by XrdStats::Stats().

void XrdScheduler::TimeSched

(

)

References XrdSysMutex::Lock(), XrdJob::NextJob, XrdJob::SchedTime, Schedule(), TimerMutex, TimerQueue, TimerRings, XrdSysMutex::UnLock(), and XrdSysCondVar::Wait().

Referenced by XrdStartTSched().

void XrdScheduler::traceExit ( pid_t  pid, int  status  )

private

References TRACE.

Referenced by Reaper().

Member Data Documentation

XrdSysMutex XrdScheduler::DispatchMutex

private

Referenced by DoIt(), Run(), and Stats().

XrdSchedulerPID* XrdScheduler::firstPID

private

Referenced by Fork(), Reaper(), and XrdScheduler().

int XrdScheduler::idl_Workers

private

Referenced by Active(), canStick(), DoIt(), Run(), Stats(), and XrdScheduler().

int XrdScheduler::max_QLength

Referenced by Schedule(), Stats(), and XrdScheduler().

int XrdScheduler::max_Workers

private

Referenced by hireWorker(), setParms(), and XrdScheduler().

int XrdScheduler::max_Workidl

private

Referenced by DoIt(), setParms(), Start(), and XrdScheduler().

int XrdScheduler::min_Workers

private

Referenced by DoIt(), hireWorker(), setParms(), Start(), and XrdScheduler().

int XrdScheduler::num_Jobs

Referenced by Schedule(), Stats(), and XrdScheduler().

int XrdScheduler::num_JobsinQ

private

Referenced by Active(), DoIt(), Run(), Schedule(), Stats(), and XrdScheduler().

int XrdScheduler::num_Layoffs

private

Referenced by DoIt(), Run(), and XrdScheduler().

int XrdScheduler::num_Limited

Referenced by hireWorker(), Stats(), and XrdScheduler().

int XrdScheduler::num_TCreate

Referenced by hireWorker(), Stats(), and XrdScheduler().

int XrdScheduler::num_TDestroy

Referenced by Run(), Stats(), and XrdScheduler().

int XrdScheduler::num_Workers

private

Referenced by Active(), canStick(), DoIt(), hireWorker(), Run(), Start(), Stats(), and XrdScheduler().

XrdSysMutex XrdScheduler::ReaperMutex

private

Referenced by Fork(), and Reaper().

XrdSysMutex XrdScheduler::SchedMutex

private

Referenced by DoIt(), hireWorker(), Run(), Schedule(), setParms(), and Stats().

int XrdScheduler::stk_Workers

private

Referenced by canStick(), hireWorker(), setParms(), and XrdScheduler().

XrdSysMutex XrdScheduler::TimerMutex

private

Referenced by Cancel(), Schedule(), and TimeSched().

XrdJob* XrdScheduler::TimerQueue

private

Referenced by Cancel(), Schedule(), TimeSched(), and XrdScheduler().

XrdSysCondVar XrdScheduler::TimerRings

private

Referenced by Schedule(), and TimeSched().

const char * XrdScheduler::TraceID = "Sched"

staticprivate

XrdSysSemaphore XrdScheduler::WorkAvail

private

Referenced by DoIt(), Run(), and Schedule().

XrdJob* XrdScheduler::WorkFirst

private

Referenced by Run(), Schedule(), and XrdScheduler().

XrdJob* XrdScheduler::WorkLast

private

Referenced by Run(), Schedule(), and XrdScheduler().

XrdSysError* XrdScheduler::XrdLog

private

Referenced by Fork(), hireWorker(), Run(), Start(), and XrdScheduler().

XrdOucTrace* XrdScheduler::XrdTrace

private

Referenced by XrdScheduler().

---

The documentation for this class was generated from the following files:

• XrdScheduler.hh
• XrdScheduler.cc