RE: [Jython-users] Q: Package Manager in jpython/jython

[O'Brien-Strain, E. <eo...@ex...>]

> -----Original Message-----
> From: Liu, Jesse (C-BASS) [mailto:Jes...@c-...]
> [...]no file locking here(is there any one in Java, 
> BTW?)[...]

You can do cooperative file locking with the createNewFile method of
java.io.File

From the Java API doc at
http://java.sun.com/j2se/1.3/docs/api/java/io/File.html
for method createNewFile:

"Atomically creates a new, empty file named by this abstract pathname if and
only if a file with this name does not yet exist. The check for the
existence of the file and the creation of the file if it does not exist are
a single operation that is atomic with respect to all other filesystem
activities that might affect the file. This method, in combination with the
deleteOnExit() method, can therefore serve as the basis for a simple but
reliable cooperative file-locking protocol."

__
Eamonn O'Brien-Strain
HP Labs
eo...@hp...