Package com.jogamp.common.util.locks

Interface Lock

All Known Subinterfaces:

RecursiveLock, RecursiveThreadGroupLock, ThreadLock

All Known Implementing Classes:

SingletonInstance

public interface Lock

Specifying a thread blocking lock implementation

Field Summary

Fields

Modifier and Type	Field	Description
static boolean	DEBUG	Enable via the property jogamp.debug.Lock
static long	DEFAULT_TIMEOUT	The default TIMEOUT value, of 5000L ms
static long	TIMEOUT	The TIMEOUT for lock() in ms, defaults to DEFAULT_TIMEOUT.
static boolean	TRACE_LOCK	Enable via the property jogamp.debug.Lock.TraceLock

Method Summary

Modifier and Type	Method	Description
boolean	isLocked()	Query if locked
void	lock()	Blocking until the lock is acquired by this Thread or TIMEOUT is reached.
boolean	tryLock(long timeout)	Blocking until the lock is acquired by this Thread or maxwait in ms is reached.
void	unlock()	Release the lock.

Field Detail

DEBUG

static final boolean DEBUG

Enable via the property jogamp.debug.Lock

TRACE_LOCK

static final boolean TRACE_LOCK

Enable via the property jogamp.debug.Lock.TraceLock

DEFAULT_TIMEOUT

static final long DEFAULT_TIMEOUT

The default TIMEOUT value, of 5000L ms

See Also:

Constant Field Values

TIMEOUT

static final long TIMEOUT

The TIMEOUT for lock() in ms, defaults to DEFAULT_TIMEOUT.

It can be overridden via the system property jogamp.common.utils.locks.Lock.timeout.

Method Detail

lock

void lock()
   throws RuntimeException

Blocking until the lock is acquired by this Thread or TIMEOUT is reached.

Throws:

RuntimeException - in case of TIMEOUT

tryLock

boolean tryLock(long timeout)
         throws InterruptedException

Blocking until the lock is acquired by this Thread or maxwait in ms is reached.

Parameters:

timeout - Maximum time in ms to wait to acquire the lock. If this value is zero, the call returns immediately either without being able to acquire the lock, or with acquiring the lock directly while ignoring any scheduling order.

Returns:

true if the lock has been acquired within maxwait, otherwise false

Throws:

InterruptedException

unlock

void unlock()
     throws RuntimeException

Release the lock.

Throws:

RuntimeException - in case the lock is not acquired by this thread.

isLocked

boolean isLocked()

Query if locked