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    Qore Programming Language Reference Manual
    0.9.4.6
    
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Variables | |
| const | Qore::F_RDLCK = F_RDLCK | 
| Use for read-only locking.  | |
| const | Qore::F_UNLCK = F_UNLCK | 
| Use for unlocking a lock.  | |
| const | Qore::F_WRLCK = F_WRLCK | 
| Use for exclusive write locking.  | |
These are the possible values for the File::lock() or File::lockBlocking() methods.