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| author | Victor Stinner <victor.stinner@haypocalc.com> | 2011-05-02 01:11:33 +0200 |
|---|---|---|
| committer | Victor Stinner <victor.stinner@haypocalc.com> | 2011-05-02 01:11:33 +0200 |
| commit | 8108e96bc811eeb61594e398848d25cbe9efbffe (patch) | |
| tree | 31ca95d076488661f741776f28d7d1b4ebd711c4 /Doc | |
| parent | cee01bf18faa9eb95b93c24711cbebbe36d91336 (diff) | |
| parent | a6cd0cf0f5530f1e96114927b2824f6dc61f1bbd (diff) | |
| download | cpython-git-8108e96bc811eeb61594e398848d25cbe9efbffe.tar.gz | |
(Merge 3.1) Issue #11277: mmap.mmap() calls fcntl(fd, F_FULLFSYNC) on Mac OS X
to get around a mmap bug with sparse files. Patch written by Steffen Daode
Nurpmeso.
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/mmap.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Doc/library/mmap.rst b/Doc/library/mmap.rst index 128bc90259..7a901c93f7 100644 --- a/Doc/library/mmap.rst +++ b/Doc/library/mmap.rst @@ -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 |