Ipc::MemMapSlot Class Reference

a MemMap basic element, holding basic shareable memory block info More...

#include <MemMap.h>

Collaboration diagram for Ipc::MemMapSlot:

Public Member Functions
	MemMapSlot ()
size_t	size () const
size_t	keySize () const
bool	sameKey (const cache_key *const aKey) const
void	set (const unsigned char *aKey, const void *block, size_t blockSize, time_t expire=0)
bool	empty () const
bool	reading () const
bool	writing () const

Public Attributes
std::atomic< uint8_t >	waitingToBeFreed
	may be accessed w/o a lock
ReadWriteLock	lock
	protects slot data below
unsigned char	key [MEMMAP_SLOT_KEY_SIZE]
	The entry key.
unsigned char	p [MEMMAP_SLOT_DATA_SIZE]
	The memory block;.
size_t	pSize
time_t	expire

Detailed Description

Definition at line 33 of file MemMap.h.

Constructor & Destructor Documentation

MemMapSlot()

Ipc::MemMapSlot::MemMapSlot

(

)

Definition at line 291 of file MemMap.cc.

References key, and p.

Referenced by size().

Member Function Documentation

empty()

bool Ipc::MemMapSlot::empty

(

)

const

Definition at line 316 of file MemMap.cc.

Referenced by Ipc::MemMap::freeLocked(), Ipc::MemMap::openForReadingAt(), and Ipc::MemMap::openForWritingAt().

keySize()

size_t Ipc::MemMapSlot::keySize ( ) const

inline

Definition at line 38 of file MemMap.h.

References key.

reading()

bool Ipc::MemMapSlot::reading ( ) const

inline

Definition at line 42 of file MemMap.h.

References lock, and Ipc::ReadWriteLock::readers.

Referenced by Ipc::MemMap::closeForReading(), Ipc::MemMap::openForWritingAt(), and Ipc::MemMap::peekAtReader().

sameKey()

bool Ipc::MemMapSlot::sameKey

(

const cache_key *const

aKey

)

const

Definition at line 310 of file MemMap.cc.

set()

void Ipc::MemMapSlot::set	(	const unsigned char *	aKey,
		const void *	block,
		size_t	blockSize,
		time_t	expire = 0
	)

Definition at line 300 of file MemMap.cc.

size()

size_t Ipc::MemMapSlot::size ( ) const

inline

Definition at line 37 of file MemMap.h.

References MemMapSlot().

writing()

bool Ipc::MemMapSlot::writing ( ) const

inline

Definition at line 43 of file MemMap.h.

References lock, and Ipc::ReadWriteLock::writing.

Referenced by Ipc::MemMap::abortWriting(), Ipc::MemMap::closeForWriting(), Ipc::MemMap::openForWritingAt(), Ipc::MemMap::peekAtReader(), and Ipc::MemMap::switchWritingToReading().

Member Data Documentation

expire

time_t Ipc::MemMapSlot::expire

Definition at line 50 of file MemMap.h.

key

unsigned char Ipc::MemMapSlot::key[MEMMAP_SLOT_KEY_SIZE]

Definition at line 47 of file MemMap.h.

Referenced by MemMapSlot(), Ipc::MemMap::freeLocked(), and keySize().

lock

ReadWriteLock Ipc::MemMapSlot::lock

mutable

Definition at line 46 of file MemMap.h.

Referenced by Ipc::MemMap::closeForReading(), Ipc::MemMap::closeForWriting(), Ipc::MemMap::free(), Ipc::MemMap::freeLocked(), Ipc::MemMap::openForReadingAt(), Ipc::MemMap::openForWritingAt(), reading(), Ipc::MemMap::switchWritingToReading(), and writing().

p

unsigned char Ipc::MemMapSlot::p[MEMMAP_SLOT_DATA_SIZE]

Definition at line 48 of file MemMap.h.

Referenced by MemMapSlot().

pSize

size_t Ipc::MemMapSlot::pSize

Definition at line 49 of file MemMap.h.

waitingToBeFreed

std::atomic<uint8_t> Ipc::MemMapSlot::waitingToBeFreed

Definition at line 45 of file MemMap.h.

Referenced by Ipc::MemMap::free(), Ipc::MemMap::freeLocked(), Ipc::MemMap::openForReadingAt(), and Ipc::MemMap::openForWritingAt().

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

• squid/src/ipc/MemMap.h
• squid/src/ipc/MemMap.cc