Semaphore Class Reference

Public Member Functions
	Semaphore (unsigned int count=1)
	~Semaphore ()
void	acquire ()
bool	tryAcquire ()
void	release ()

Detailed Description

Definition at line 27 of file Semaphore.h.

Constructor & Destructor Documentation

Semaphore()

Semaphore

(

unsigned int

count = 1

)

Initializes the instance with the given value of the "count".

The

Parameters

count

indicates the initial "count" for the semaphore. The state of the semaphore is signaled when its count is greater than zero and non-signaled when it is zero.

~Semaphore()

~Semaphore

(

)

Destructs the object.

Member Function Documentation

acquire()

void acquire

(

)

Decrements the semaphore "counter" by one.

If the semaphore "counter" is already zero, blocks the thread until the semaphore "count" becomes greater than zero.

release()

void release

(

)

Increments the semaphore "counter" by one.

If there are other threads waiting for the object, it blocks one the them.

tryAcquire()

bool tryAcquire

(

)

Tries to acquire the semaphore object.

If its "counter" is already zero, returns false. In all cases, it doesn't block the thread and quites immediately.