view .hgignore @ 5051:95a4aa0eb1e9

caching: refactored locking to separate methods, new scope='dir' scope='dir' just means: use the directory specified by arena Use .lock() and .unlock() methods together with do_locking=False to manually lock/unlock (e.g. for a locked read-modify-write cycle). With do_locking=True, .lock() is automatically called by .open(), .unlock() is automatically called by .close(). Typical usage: try: cache.open('r') # open file, create locks data = cache.read() finally: cache.close() # important to close file and remove locks Removed the code that unlocks in .open()'s exception handler. Such stuff needs to be done in the caller's "finally:" block (which has to call .close(), which internally calls .unlock()). Only log IOErrors in .open() if it was for write mode. For read mode, it can be just a non-existing file, we don't want to log this case.
author Thomas Waldmann <tw AT waldmann-edv DOT de>
date Sat, 29 Aug 2009 22:17:07 +0200
parents b90446900b70
children 0e7c007f8ed9 aff142620fdd
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