ThreadTimeAccounting Class Reference

#include <DeferredTimeAccounting.h>

Collaboration diagram for ThreadTimeAccounting:

Classes
struct	Entry

Public Member Functions
void	record (CpuTimeMode mode, Time::Timestamp now, size_t processor=0)
ALWAYS_INLINE void	recordAtInterruptDisabled (CpuTimeMode mode, Time::Timestamp now, size_t processor=0)
Time::Timestamp	elapsed (CpuTimeMode mode, Time::Timestamp now, size_t processor=0)
ALWAYS_INLINE Time::Timestamp	elapsedAtInterruptDisabled (CpuTimeMode mode, Time::Timestamp now, size_t processor=0)

Private Member Functions
ALWAYS_INLINE Entry *	entry (CpuTimeMode mode)
	ThreadTimeAccounting (const ThreadTimeAccounting &)=delete
ThreadTimeAccounting &	operator= (const ThreadTimeAccounting &)=delete

Static Private Member Functions
static bool	installProcessorBaseline (Entry *state, size_t processor, Time::Timestamp now)

Private Attributes
Entry	m_Kernel
Entry	m_User

Detailed Description

Independent monotonic CPU-time baselines owned by one schedulable Thread.

Definition at line 45 of file DeferredTimeAccounting.h.

Constructor & Destructor Documentation

ThreadTimeAccounting()

ThreadTimeAccounting::ThreadTimeAccounting ( )

inline

Definition at line 47 of file DeferredTimeAccounting.h.

Member Function Documentation

elapsed()

Time::Timestamp ThreadTimeAccounting::elapsed ( CpuTimeMode  mode, Time::Timestamp  now, size_t  processor = 0  )

inline

Definition at line 81 of file DeferredTimeAccounting.h.

elapsedAtInterruptDisabled()

ALWAYS_INLINE Time::Timestamp ThreadTimeAccounting::elapsedAtInterruptDisabled ( CpuTimeMode  mode, Time::Timestamp  now, size_t  processor = 0  )

inline

Returns and advances a current Thread's baseline with IRQs disabled.

Definition at line 104 of file DeferredTimeAccounting.h.

Referenced by Thread::trackTime(), and Thread::transitionTime().

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entry()

ALWAYS_INLINE Entry * ThreadTimeAccounting::entry ( CpuTimeMode  mode )

inlineprivate

Definition at line 141 of file DeferredTimeAccounting.h.

installProcessorBaseline()

static bool ThreadTimeAccounting::installProcessorBaseline ( Entry *  state, size_t  processor, Time::Timestamp  now  )

inlinestaticprivate

Definition at line 128 of file DeferredTimeAccounting.h.

record()

void ThreadTimeAccounting::record ( CpuTimeMode  mode, Time::Timestamp  now, size_t  processor = 0  )

inline

Definition at line 49 of file DeferredTimeAccounting.h.

recordAtInterruptDisabled()

ALWAYS_INLINE void ThreadTimeAccounting::recordAtInterruptDisabled ( CpuTimeMode  mode, Time::Timestamp  now, size_t  processor = 0  )

inline

Updates a current Thread's baseline while its CPU has interrupts masked. The owning Thread cannot migrate or execute concurrently in this window, so the compare-exchange loop used by the standalone helper is unnecessary.

Definition at line 72 of file DeferredTimeAccounting.h.

Referenced by Thread::recordTime(), and Thread::transitionTime().

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Member Data Documentation

m_Kernel

Entry ThreadTimeAccounting::m_Kernel

private

Definition at line 145 of file DeferredTimeAccounting.h.

m_User

Entry ThreadTimeAccounting::m_User

private

Definition at line 146 of file DeferredTimeAccounting.h.

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

• DeferredTimeAccounting.h