bslmt::Semaphore Class Reference

#include <bslmt_semaphore.h>

Public Member Functions
	Semaphore ()
	Semaphore (int count)
	~Semaphore ()
	Destroy this semaphore.
void	post ()
	Atomically increment the count of this semaphore.
void	post (int value)
int	tryWait ()
void	wait ()
int	getValue () const
	Return the value of the current count of this semaphore.

Detailed Description

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

See bslmt_semaphore

Constructor & Destructor Documentation

Semaphore() [1/2]

bslmt::Semaphore::Semaphore ( )

inline

Create a semaphore initially having a count of 0. This method does not return normally unless there are sufficient system resources to construct the object.

Semaphore() [2/2]

bslmt::Semaphore::Semaphore ( int  count )

inlineexplicit

Create a semaphore initially having the specified count. This method does not return normally unless there are sufficient system resources to construct the object.

~Semaphore()

bslmt::Semaphore::~Semaphore ( )

inline

Member Function Documentation

getValue()

int bslmt::Semaphore::getValue ( ) const

inline

post() [1/2]

void bslmt::Semaphore::post ( )

inline

post() [2/2]

void bslmt::Semaphore::post ( int  value )

inline

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

tryWait()

int bslmt::Semaphore::tryWait ( )

inline

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.

wait()

void bslmt::Semaphore::wait ( )

inline

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

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

• bslmt_semaphore.h