Fiber-aware semaphore. More...

#include <sync.h>

Inheritance diagram for zth::Semaphore:

Public Types
typedef unsigned int	count_type

Public Types inherited from zth::Synchronizer< Size >
typedef SynchronizerBase	base

Public Types inherited from zth::UniqueID< SynchronizerBase >
typedef NamedUniqueID	base

Public Member Functions
	Semaphore (count_type init=0, cow_string const &name="Semaphore")

	Semaphore (count_type init, cow_string &&name)

virtual	~Semaphore () noexcept override=default

void	acquire (count_type count=1)

void	release (count_type count=1) noexcept

count_type	value () const noexcept

Public Member Functions inherited from zth::Synchronizer< Size >
	Synchronizer ()=default

	Synchronizer (cow_string const &name)

	Synchronizer (cow_string &&name)

virtual	~Synchronizer () noexcept override

Public Member Functions inherited from zth::SynchronizerBase
virtual	~SynchronizerBase () noexcept override

Public Member Functions inherited from zth::RefCounted
	RefCounted () noexcept

virtual	~RefCounted () noexcept

void	used () noexcept

bool	unused () noexcept

size_t	refs () const noexcept

Public Member Functions inherited from zth::UniqueID< SynchronizerBase >
	UniqueID (UniqueID const &)=delete

	UniqueID (UniqueID &&u) noexcept

	UniqueID (string const &name)

	UniqueID (string &&name)

	UniqueID (char const *name=nullptr)

UniqueID &	operator= (UniqueID const &)=delete

UniqueID &	operator= (UniqueID &&u) noexcept

virtual	~UniqueID () noexcept override=default

void const *	normptr () const noexcept

uint64_t	id () const noexcept

Public Member Functions inherited from zth::NamedUniqueID< Named >
virtual	~NamedUniqueID () noexcept override=default

string const &	name () const noexcept

void	setName (string const &name)

void	setName (char const *name)

void	setName (string &&name)

virtual char const *	id_str () const noexcept override

Additional Inherited Members
Static Public Member Functions inherited from zth::UniqueID< SynchronizerBase >
static uint64_t	getID () noexcept

Protected Types inherited from zth::Synchronizer< Size >
typedef base::queue_type	queue_type

Protected Types inherited from zth::SynchronizerBase
typedef List	queue_type

Protected Member Functions inherited from zth::Synchronizer< Size >
virtual queue_type &	queue (size_t q) final

Protected Member Functions inherited from zth::SynchronizerBase
	SynchronizerBase (cow_string const &name="Synchronizer")

	SynchronizerBase (cow_string &&name)

queue_type::iterator	enqueue (Listable &item, size_t q=0) noexcept

void	block (size_t q=0)

bool	unblock (Fiber &f, size_t q=0, bool prio=false) noexcept
	Unblock the specific fiber.

Listable *	unblockFirst (size_t q=0, bool prio=false) noexcept

bool	unblockAll (size_t q=0, bool prio=false) noexcept

virtual void	wakeup (Listable &item, queue_type::user_type user, bool prio, size_t q) noexcept

bool	blockUntil (Timestamp const &timeout, Timestamp const &now=Timestamp::now(), size_t q=0)
	Block, with timeout.

bool	blockFor (TimeInterval const &timeout, Timestamp const &now=Timestamp::now(), size_t q=0)
	Block, with timeout.

Protected Member Functions inherited from zth::RefCounted
virtual void	cleanup () noexcept

Protected Member Functions inherited from zth::UniqueID< SynchronizerBase >
virtual uint64_t	id_ () const noexcept final

Protected Member Functions inherited from zth::NamedUniqueID< Named >
	NamedUniqueID (char const *name=nullptr)

	NamedUniqueID (string const &name)

	NamedUniqueID (string &&name)

Protected Member Functions inherited from zth::UniqueIDBase
virtual	~UniqueIDBase () noexcept=default

Detailed Description

Fiber-aware semaphore.

Definition at line 614 of file sync.h.

Member Typedef Documentation

◆ count_type

typedef unsigned int zth::Semaphore::count_type

Definition at line 617 of file sync.h.

Constructor & Destructor Documentation

◆ Semaphore() [1/2]

zth::Semaphore::Semaphore	(	count_type	init = `0`,
		cow_string const &	name = `"Semaphore"`
	)

inlineexplicit

Definition at line 619 of file sync.h.

◆ Semaphore() [2/2]

zth::Semaphore::Semaphore	(	count_type	init,
		cow_string &&	name
	)

inline

Definition at line 626 of file sync.h.

◆ ~Semaphore()

virtual zth::Semaphore::~Semaphore ( )

overridevirtualdefaultnoexcept

Member Function Documentation

◆ acquire()

void zth::Semaphore::acquire ( count_type count = 1 )

inline

Definition at line 635 of file sync.h.

◆ release()

void zth::Semaphore::release ( count_type count = 1 )

inlinenoexcept

Definition at line 653 of file sync.h.

◆ value()

count_type zth::Semaphore::value ( ) const