Mercurial > hgrepos > Python > apps > py-cutils

comparison shasum.py @ 61:c9f9401abc0c

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Use getattr when trying to get mmap.madvise()
author Franz Glasner <fzglas.hg@dom66.de>
date Wed, 09 Feb 2022 12:00:27 +0100
parents 21d2589c96b9
children c52e5f86b0ab
comparison
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60:21d2589c96b9 61:c9f9401abc0c
479 # Use mmap 479 # Use mmap
480 # 480 #
481 # NOTE: On Windows mmapped files with length 0 are not supported. 481 # NOTE: On Windows mmapped files with length 0 are not supported.
482 # So ensure to not call mmap.mmap() if the file size is 0. 482 # So ensure to not call mmap.mmap() if the file size is 0.
483 # 483 #
484 try: 484 madvise = getattr(mmap.mmap, "madvise", None)
485 madvise = mmap.mmap.madvise
486 except AttributeError:
487 madvise = None
488 if filesize < MAP_CHUNK_SIZE: 485 if filesize < MAP_CHUNK_SIZE:
489 mapsize = filesize 486 mapsize = filesize
490 else: 487 else:
491 mapsize = MAP_CHUNK_SIZE 488 mapsize = MAP_CHUNK_SIZE
492 mapoffset = 0 489 mapoffset = 0