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Issue #11277: mmap calls fcntl(fd, F_FULLFSYNC) on Mac OS X to get around a

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mmap bug with sparse files. Patch written by Steffen Daode Nurpmeso.
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Victor Stinner 2011-05-02 01:05:37 +02:00
parent 10116d40d8
commit a6cd0cf0f5
4 changed files with 17 additions and 1 deletions
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Doc/library/mmap.rst
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@ -86,6 +86,10 @@ To map anonymous memory, -1 should be passed as the fileno along with the length
defaults to 0. *offset* must be a multiple of the PAGESIZE or
ALLOCATIONGRANULARITY.
To ensure validity of the created memory mapping the file specified
by the descriptor *fileno* is internally automatically synchronized
with physical backing store on Mac OS X and OpenVMS.
This example shows a simple way of using :class:`mmap`::
import mmap