QoreThreadLock Class Reference

provides a mutually-exclusive thread lock More...

#include <QoreThreadLock.h>

Inheritance diagram for QoreThreadLock:

Public Member Methods
DLLLOCAL	QoreThreadLock ()
	creates the lock
DLLLOCAL	QoreThreadLock (const pthread_mutexattr_t *ma)
	creates the lock with the given attributes
DLLLOCAL	QoreThreadLock (const QoreThreadLock &)
	creates a new object (not based on the original lock status)
DLLLOCAL	~QoreThreadLock ()
	destroys the lock
DLLLOCAL void	lock ()
	grabs the lock (assumes that the lock is unlocked)
DLLLOCAL int	trylock ()
	attempts to acquire the mutex and returns the status immediately; does not block
DLLLOCAL void	unlock ()
	releases the lock (assumes that the lock is locked)

Friends
class	QoreCondition

Detailed Description

provides a mutually-exclusive thread lock

This class is just a simple wrapper for pthread_mutex_t. It does not provide any special logic for checking for correct usage, etc.

See also

QoreRecursiveThreadLock

Member Function Documentation

lock()

DLLLOCAL void QoreThreadLock::lock ( )

inline

grabs the lock (assumes that the lock is unlocked)

no error checking happens here; if you grab the lock twice it will deadlock

Referenced by AutoLocker::AutoLocker(), AutoLocker::AutoLocker(), AutoLocker::AutoLocker(), AutoLocker::AutoLocker(), OptLocker::OptLocker(), SafeLocker::SafeLocker(), SafeLocker::SafeLocker(), AutoUnlocker::~AutoUnlocker(), SafeLocker::lock(), and SafeLocker::relock().

trylock()

DLLLOCAL int QoreThreadLock::trylock ( )

inline

attempts to acquire the mutex and returns the status immediately; does not block

Returns

0 if the lock was acquired, a non-zero error number if the lock was not acquired

unlock()

DLLLOCAL void QoreThreadLock::unlock ( )

inline

releases the lock (assumes that the lock is locked)

no error checking is implemented here

Referenced by AutoUnlocker::AutoUnlocker(), AutoUnlocker::AutoUnlocker(), AutoLocker::~AutoLocker(), OptLocker::~OptLocker(), SafeLocker::~SafeLocker(), and SafeLocker::unlock().

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

• /tmp/qore/include/qore/QoreThreadLock.h