LibThread::SingularSyncVar Class Reference

Public Member Functions
	SingularSyncVar ()
virtual	~SingularSyncVar ()
void	acquire ()
void	release ()
void	wait_init ()
leftv	get ()
void	update (leftv val)
int	write (string item)
string	read ()
int	check ()
Public Member Functions inherited from LibThread::SharedObject
	SharedObject ()
virtual	~SharedObject ()
void	set_type (int type_init)
int	get_type ()
void	set_name (std::string &name_init)
void	set_name (const char *s)
std::string &	get_name ()
void	incref (int by=1)
long	decref ()
long	getref ()
virtual BOOLEAN	op2 (int op, leftv res, leftv a1, leftv a2)
virtual BOOLEAN	op3 (int op, leftv res, leftv a1, leftv a2, leftv a3)

Private Attributes
string	value
int	init
Lock	lock
ConditionVariable	cond

Detailed Description

Definition at line 431 of file shared.cc.

Constructor & Destructor Documentation

SingularSyncVar()

LibThread::SingularSyncVar::SingularSyncVar ( )

inline

Definition at line 438 of file shared.cc.

: SharedObject(), init(0), lock(), cond(&lock) { }

~SingularSyncVar()

virtual LibThread::SingularSyncVar::~SingularSyncVar ( )

inlinevirtual

Definition at line 439 of file shared.cc.

{ }

Member Function Documentation

acquire()

void LibThread::SingularSyncVar::acquire ( )

inline

Definition at line 440 of file shared.cc.

                 {
    lock.lock();
  }

check()

int LibThread::SingularSyncVar::check ( )

inline

Definition at line 479 of file shared.cc.

              {
    lock.lock();
    int result = init;
    lock.unlock();
    return result;
  }

get()

leftv LibThread::SingularSyncVar::get ( )

inline

Definition at line 450 of file shared.cc.

              {
    if (value.size() == 0) return NULL;
    return LinTree::from_string(value);
  }

read()

string LibThread::SingularSyncVar::read ( )

inline

Definition at line 471 of file shared.cc.

                {
    lock.lock();
    while (!init)
      cond.wait();
    string result = value;
    lock.unlock();
    return result;
  }

release()

void LibThread::SingularSyncVar::release ( )

inline

Definition at line 443 of file shared.cc.

                 {
    lock.unlock();
  }

update()

void LibThread::SingularSyncVar::update ( leftv  val )

inline

Definition at line 454 of file shared.cc.

                         {
    value = LinTree::to_string(val);
    init = 1;
    cond.broadcast();
  }

wait_init()

void LibThread::SingularSyncVar::wait_init ( )

inline

Definition at line 446 of file shared.cc.

                   {
    while (!init)
      cond.wait();
  }

write()

int LibThread::SingularSyncVar::write ( string  item )

inline

Definition at line 459 of file shared.cc.

                         {
    int result = 0;
    lock.lock();
    if (!init) {
      value = item;
      init = 1;
      cond.broadcast();
      result = 1;
    }
    lock.unlock();
    return result;
  }

Field Documentation

cond

ConditionVariable LibThread::SingularSyncVar::cond

private

Definition at line 436 of file shared.cc.

init

int LibThread::SingularSyncVar::init

private

Definition at line 434 of file shared.cc.

lock

Lock LibThread::SingularSyncVar::lock

private

Definition at line 435 of file shared.cc.

value

string LibThread::SingularSyncVar::value

private

Definition at line 433 of file shared.cc.

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

• Singular/dyn_modules/systhreads/shared.cc