ripple::IntrusiveRefCounts::RefCountPair Struct Reference

Unpack the count and tag fields from the packed atomic integer form. More...

Collaboration diagram for ripple::IntrusiveRefCounts::RefCountPair:

Public Member Functions
	RefCountPair (FieldType v) noexcept
	RefCountPair (CountType s, CountType w) noexcept
FieldType	combinedValue () const noexcept
	Convert back to the packed integer form.

Public Attributes
CountType	strong
CountType	weak
FieldType	partialDestroyStartedBit {0}
	The partialDestroyStartedBit is set to on when the partial destroy function is started.
FieldType	partialDestroyFinishedBit {0}
	The partialDestroyFinishedBit is set to on when the partial destroy function has finished.

Static Public Attributes
static constexpr CountType	maxStrongValue
static constexpr CountType	maxWeakValue
static constexpr CountType	checkStrongMaxValue = maxStrongValue - 32
	Put an extra margin to detect when running up against limits.
static constexpr CountType	checkWeakMaxValue = maxWeakValue - 32

Detailed Description

Unpack the count and tag fields from the packed atomic integer form.

Definition at line 215 of file IntrusiveRefCounts.h.

Constructor & Destructor Documentation

RefCountPair() [1/2]

ripple::IntrusiveRefCounts::RefCountPair::RefCountPair ( IntrusiveRefCounts::FieldType  v )

noexcept

Definition at line 440 of file IntrusiveRefCounts.h.

RefCountPair() [2/2]

ripple::IntrusiveRefCounts::RefCountPair::RefCountPair ( IntrusiveRefCounts::CountType  s, IntrusiveRefCounts::CountType  w  )

noexcept

Definition at line 453 of file IntrusiveRefCounts.h.

Member Function Documentation

combinedValue()

IntrusiveRefCounts::FieldType ripple::IntrusiveRefCounts::RefCountPair::combinedValue ( ) const

noexcept

Convert back to the packed integer form.

Definition at line 465 of file IntrusiveRefCounts.h.

Member Data Documentation

strong

CountType ripple::IntrusiveRefCounts::RefCountPair::strong

Definition at line 217 of file IntrusiveRefCounts.h.

weak

CountType ripple::IntrusiveRefCounts::RefCountPair::weak

Definition at line 218 of file IntrusiveRefCounts.h.

partialDestroyStartedBit

FieldType ripple::IntrusiveRefCounts::RefCountPair::partialDestroyStartedBit {0}

The partialDestroyStartedBit is set to on when the partial destroy function is started.

It is not a boolean; it is a uint32 with all bits zero with the possible exception of the partialDestroyStartedMask bit. This is done so it can be directly masked into the combinedValue.

Definition at line 225 of file IntrusiveRefCounts.h.

partialDestroyFinishedBit

FieldType ripple::IntrusiveRefCounts::RefCountPair::partialDestroyFinishedBit {0}

The partialDestroyFinishedBit is set to on when the partial destroy function has finished.

Definition at line 229 of file IntrusiveRefCounts.h.

maxStrongValue

constexpr CountType ripple::IntrusiveRefCounts::RefCountPair::maxStrongValue

staticconstexpr

Initial value:

=
            static_cast<CountType>((one << StrongCountNumBits) - 1)

Definition at line 237 of file IntrusiveRefCounts.h.

maxWeakValue

constexpr CountType ripple::IntrusiveRefCounts::RefCountPair::maxWeakValue

staticconstexpr

Initial value:

=
            static_cast<CountType>((one << WeakCountNumBits) - 1)

Definition at line 239 of file IntrusiveRefCounts.h.

checkStrongMaxValue

constexpr CountType ripple::IntrusiveRefCounts::RefCountPair::checkStrongMaxValue = maxStrongValue - 32

staticconstexpr

Put an extra margin to detect when running up against limits.

This is only used in debug code, and is useful if we reduce the number of bits in the strong and weak counts (to 16 and 14 bits).

Definition at line 245 of file IntrusiveRefCounts.h.

checkWeakMaxValue

constexpr CountType ripple::IntrusiveRefCounts::RefCountPair::checkWeakMaxValue = maxWeakValue - 32

staticconstexpr

Definition at line 246 of file IntrusiveRefCounts.h.