Event Class Reference

The Event class implements a feature originally found in the WIN32 API; event notification. More...

#include <thread.h>

Collaboration diagram for Event:

Public Member Functions
	Event ()
virtual	~Event ()
void	reset (void)
	Once signaled, the Event class must be "reset" before responding to a new signal. More...
void	signal (void)
	Signal the event for the waiting thread. More...
bool	wait (timeout_t timer)
	Wait either for the event to be signaled by another thread or for the specified timeout duration. More...
bool	wait (void)

Private Attributes
pthread_mutex_t	_mutex
pthread_cond_t	_cond
bool	_signaled
int	_count

Detailed Description

The Event class implements a feature originally found in the WIN32 API; event notification.

A target thread waits on a resetable Event, and one or more other threads can then signal the waiting thread to resume execution. A timeout can be used to specify a wait duration in milliseconds. The Event class must be reset before it can be used again as a trigger. These event objects use a trigger/reset mechanism and are related to low level conditional variables.

Author

: David Sugar dyfet.nosp@m.@ost.nosp@m.el.co.nosp@m.m Thread synchornization on event notification.

Definition at line 869 of file thread.h.

Constructor & Destructor Documentation

Event::Event

(

)

virtual Event::~Event ( )

virtual

Member Function Documentation

void Event::reset

(

void

)

Once signaled, the Event class must be "reset" before responding to a new signal.

See Also

signal

void Event::signal

(

void

)

Signal the event for the waiting thread.

bool Event::wait

(

timeout_t

timer

)

Wait either for the event to be signaled by another thread or for the specified timeout duration.

See Also

signal

Returns

true if signaled, false if timed out.

Parameters

timer

timeout in milliseconds to wait for a signal.

bool Event::wait

(

void

)

Field Documentation

pthread_cond_t Event::_cond

private

Definition at line 874 of file thread.h.

int Event::_count

private

Definition at line 876 of file thread.h.

pthread_mutex_t Event::_mutex

private

Definition at line 873 of file thread.h.

bool Event::_signaled

private

Definition at line 875 of file thread.h.

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

• thread.h