Counting semaphore. More...

#include <OsCSem.h>

Inheritance diagram for OsCSemBase:

Collaboration diagram for OsCSemBase:

Public Types
enum	QueueOptions { Q_FIFO = 0x0, Q_PRIORITY = 0x1 }

Public Member Functions
virtual OsStatus	acquire (const OsTime &rTimeout=OsTime::OS_INFINITY)=0
	Block the task until the semaphore is acquired or the timeout expires. More...

virtual OsStatus	tryAcquire (void)=0
	Conditionally acquire the semaphore (i.e., don't block) More...

virtual OsStatus	release (void)=0
	Release the semaphore. More...

Public Member Functions inherited from OsSyncBase
virtual	~OsSyncBase ()
	Destructor. More...

OsSyncBase &	operator= (const OsSyncBase &rhs)
	Assignment operator. More...

Protected Member Functions
	OsCSemBase (const int queueOptions, const int maxCount, const int initCount)
	Default constructor. More...

virtual	~OsCSemBase ()
	Destructor. More...

Protected Member Functions inherited from OsSyncBase
	OsSyncBase ()
	Default constructor. More...

Detailed Description

Counting semaphore.

Member Enumeration Documentation

Enumerator
Q_FIFO	queue blocked tasks on a first-in, first-out basis
Q_PRIORITY	queue blocked tasks based on their priority

protected

Default constructor.

virtual ~OsCSemBase ( )

inlineprotectedvirtual

Destructor.

virtual OsStatus acquire ( const OsTime & rTimeout = OsTime::OS_INFINITY )

pure virtual

Block the task until the semaphore is acquired or the timeout expires.

Implements OsSyncBase.

Implemented in OsCSemWnt, and OsCSemLinux.

virtual OsStatus tryAcquire ( void )

pure virtual

Conditionally acquire the semaphore (i.e., don't block)

Implements OsSyncBase.

Implemented in OsCSemWnt, and OsCSemLinux.

virtual OsStatus release ( void )

pure virtual

Release the semaphore.

Implements OsSyncBase.

Implemented in OsCSemWnt, and OsCSemLinux.