ROOT::Internal::RSlotStack Class Reference

A thread-safe stack of N indexes (0 to size - 1).

RSlotStack can be used to safely assign a "processing slot" number to each thread in multi-thread applications. In release builds, pop and push operations are unchecked, potentially resulting in undefined behavior if more slot numbers than available are requested. An important design assumption is that a slot will almost always be available when a thread asks for it, and if it is not available it will be very soon, therefore a spinlock is used for synchronization.

Definition at line 30 of file RSlotStack.hxx.

Public Member Functions
	RSlotStack ()=delete
	RSlotStack (unsigned int size)
unsigned int	GetSlot ()
void	ReturnSlot (unsigned int slotNumber)

Private Attributes
ROOT::TSpinMutex	fMutex
const unsigned int	fSize
std::stack< unsigned int >	fStack

#include <ROOT/RSlotStack.hxx>

Constructor & Destructor Documentation

RSlotStack() [1/2]

ROOT::Internal::RSlotStack::RSlotStack ( )

delete

RSlotStack() [2/2]

ROOT::Internal::RSlotStack::RSlotStack

(

unsigned int

size

)

Definition at line 17 of file RSlotStack.cxx.

Member Function Documentation

GetSlot()

unsigned int ROOT::Internal::RSlotStack::GetSlot

(

)

Definition at line 31 of file RSlotStack.cxx.

ReturnSlot()

void ROOT::Internal::RSlotStack::ReturnSlot

(

unsigned int

slotNumber

)

Definition at line 23 of file RSlotStack.cxx.

Member Data Documentation

fMutex

ROOT::TSpinMutex ROOT::Internal::RSlotStack::fMutex

private

Definition at line 34 of file RSlotStack.hxx.

fSize

const unsigned int ROOT::Internal::RSlotStack::fSize

private

Definition at line 32 of file RSlotStack.hxx.

fStack

std::stack<unsigned int> ROOT::Internal::RSlotStack::fStack

private

Definition at line 33 of file RSlotStack.hxx.

Libraries for ROOT::Internal::RSlotStack:

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