/**
* Add a lock to this file
*
* @param lock FileLock
* @exception LockConflictException
*/
public final void addLock(FileLock lock) throws LockConflictException {
// Check if the lock list has been allocated
if (m_lockList == null) {
synchronized (this) {
// Allocate the lock list, check if the lock list has been allocated elsewhere
// as we may have been waiting for the lock
if (m_lockList == null) m_lockList = new FileLockList();
}
}
// Add the lock to the list, check if there are any lock conflicts
synchronized (m_lockList) {
// Check if the new lock overlaps with any existing locks
if (m_lockList.allowsLock(lock)) {
// Add the new lock to the list
m_lockList.addLock(lock);
} else throw new LockConflictException();
}
}
