Semaphore Class Reference

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

Detailed Description

Semaphore.

Limits number of threads that can access the shared resource simultaneously.

Definition at line 33 of file Semaphore.h.

Constructor & Destructor Documentation

Semaphore()

Semaphore

(

unsigned int

count = 1

)

Constructor.

The state of the semaphore is signaled when its counter is greater than zero and non-signaled when it is zero.

Parameters

count

the counter value.

~Semaphore()

~Semaphore

(

)

Member Function Documentation

acquire()

bool acquire

(

int

timeoutInMs = -1

)

Decrements the counter by one.

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

release()

void release

(

)

Increments the counter by one.

tryAcquire()

bool tryAcquire

(

)

Tries to decrement the counter by one.

Returns

‘false’ if the counter is already zero, / otherwise - true.