bslmt::Semaphore Class Reference

#include <bslmt_semaphore.h>

List of all members.

Public Member Functions
	Semaphore ()
	Semaphore (int count)
	~Semaphore ()
void	post ()
void	post (int value)
int	tryWait ()
void	wait ()
int	getValue () const

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Detailed Description

This class implements a portable semaphore type for thread synchronization. It forwards all requests to an appropriate platform-specific implementation.

See Component bslmt_semaphore

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Constructor & Destructor Documentation

bslmt::Semaphore::Semaphore

(

)

Create a semaphore initially having a count of 0.

bslmt::Semaphore::Semaphore

(

int

count

)

[explicit]

Create a semaphore initially having the specified count.

bslmt::Semaphore::~Semaphore

(

)

Destroy this semaphore.

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Member Function Documentation

void bslmt::Semaphore::post

(

)

Atomically increment the count of this semaphore.

void bslmt::Semaphore::post

(

int

value

)

Atomically increase the count of this semaphore by the specified value. The behavior is undefined unless value > 0.

int bslmt::Semaphore::tryWait

(

)

If the count of this semaphore is positive, atomically decrement the count and return 0; otherwise, return a non-zero value with no effect on the count.

void bslmt::Semaphore::wait

(

)

Block until the count of this semaphore is a positive value, then atomically decrement the count and return.

int bslmt::Semaphore::getValue

(

)

const

Return the value of the current count of this semaphore.

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

• bslmt_semaphore.h