Indicates a latch is held by this thread. More...

#include <latch.h>

Public Member Functions
	latch_holder_t ()

bool	operator== (latch_holder_t const &other) const

void	print (ostream &o) const

Public Attributes
latch_t *	_latch

latch_mode_t	_mode

int	_count

latch_holder_t *	_prev

latch_holder_t *	_next

Static Public Attributes
static __thread latch_holder_t *	thread_local_holders
	Linked list of all latches held by this thread. More...

static __thread latch_holder_t *	thread_local_freelist
	Pool of unused latch_holder_t instances. More...

Private Member Functions
latch_holder_t &	operator= (latch_holder_t const &other)

Private Attributes
std::thread::id	_threadid

Detailed Description

Indicates a latch is held by this thread.

Every time we want to grab a latch, we have to create a latch_holder_t. We do that with the holder_search class, which searches a TLS list to make sure we(this thread) doesn't already hold the latch, and, if not, it creates a new latch_holder_t for the new latch acquisition. It then stuffs the latch_holder_t in the TLS list. If we do already have hold the latch in some capacity, the holder_search returns that existing latch_holder_t.

See also: holder_search

Constructor & Destructor Documentation

§ latch_holder_t()

latch_holder_t::latch_holder_t ( )

inline

Member Function Documentation

§ operator=()

latch_holder_t& latch_holder_t::operator= ( latch_holder_t const & other )

private

§ operator==()

bool latch_holder_t::operator== ( latch_holder_t const & other ) const

inline

§ print()

void latch_holder_t::print ( ostream & o ) const

Member Data Documentation

§ _count

int latch_holder_t::_count

§ _latch

latch_t* latch_holder_t::_latch

§ _mode

latch_mode_t latch_holder_t::_mode

§ _next

latch_holder_t* latch_holder_t::_next

§ _prev

latch_holder_t* latch_holder_t::_prev

§ _threadid

std::thread::id latch_holder_t::_threadid