scopira::tool::condition Class Reference

#include <thread_pthreads.h>

Public Member Functions
	condition (void)
	~condition ()
	non virtual dtor
void	notify (void)
void	notify_all (void)
void	wait (mutex &mut)
bool	wait (mutex &mut, int msec)
	condition (void)
	~condition ()
	non virtual dtor
void	notify (void)
void	notify_all (void)
void	wait (mutex &mut)
bool	wait (mutex &mut, int msec)

Protected Attributes
pthread_cond_t	dm_con
QWaitCondition	dm_con

Detailed Description

A condition (short for ‘‘condition variable’’) is a synchronization device that allows threads to suspend execution and relinquish the pro- cessors until some predicate on shared data is satisfied. The basic operations on conditions are: signal the condition (when the predicate becomes true), and wait for the condition, suspending the thread execu- tion until another thread signals the condition.

Author

Aleksander Demko

Constructor & Destructor Documentation

condition() [1/2]

scopira::tool::condition::condition

(

void

)

constructor

condition() [2/2]

scopira::tool::condition::condition

(

void

)

constructor

Member Function Documentation

notify() [1/2]

void scopira::tool::condition::notify

(

void

)

Notify One waiting thread You don't need to do any mutex locking for this.

Author

Aleksander Demko

Referenced by scopira::tool::event_ptr< T >::notify().

notify() [2/2]

void scopira::tool::condition::notify

(

void

)

Notify One waiting thread You don't need to do any mutex locking for this.

Author

Aleksander Demko

notify_all() [1/2]

void scopira::tool::condition::notify_all

(

void

)

Notify ALL the waiting threads. You don't need to do any mutex locking for this.

Author

Aleksander Demko

Referenced by scopira::tool::event_ptr< T >::notify_all().

notify_all() [2/2]

void scopira::tool::condition::notify_all

(

void

)

Notify ALL the waiting threads. You don't need to do any mutex locking for this.

Author

Aleksander Demko

wait() [1/4]

void scopira::tool::condition::wait

(

mutex &

mut

)

Waits, indefinatly for a notification. You must have a lock on the given mutex before calling this method. The method does a quick unlock before waiting, and reaquires the lock on notification.

Author

Aleksander Demko

Referenced by scopira::tool::event_ptr< T >::wait().

wait() [2/4]

void scopira::tool::condition::wait

(

mutex &

mut

)

Waits, indefinatly for a notification. You must have a lock on the given mutex before calling this method. The method does a quick unlock before waiting, and reaquires the lock on notification.

Author

Aleksander Demko

wait() [3/4]

bool scopira::tool::condition::wait	(	mutex &	mut,
		int	msec
	)

Waits, indefinatly for a notification. You must have a lock on the given mutex before calling this method. The method does a quick unlock before waiting, and reaquires the lock on notification.

Parameters

mut	the mutex that has been locked on entry
msec	the number of msec (1000=second) to wait

Returns

true if timed out, false if got a notification event

Author

Aleksander Demko

wait() [4/4]

bool scopira::tool::condition::wait	(	mutex &	mut,
		int	msec
	)

Waits, indefinatly for a notification. You must have a lock on the given mutex before calling this method. The method does a quick unlock before waiting, and reaquires the lock on notification.

Parameters

mut	the mutex that has been locked on entry
msec	the number of msec (1000=second) to wait

Returns

true if timed out, false if got a notification event

Author

Aleksander Demko

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

• thread_pthreads.h
• thread_qtthreads.h