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| author | Victor Stinner <victor.stinner@haypocalc.com> | 2011-05-02 01:05:37 +0200 |
|---|---|---|
| committer | Victor Stinner <victor.stinner@haypocalc.com> | 2011-05-02 01:05:37 +0200 |
| commit | a6cd0cf0f5530f1e96114927b2824f6dc61f1bbd (patch) | |
| tree | ccd842682a0b4893d38d5b4e3ac44fa06a17c6ae /Doc/library/mmap.rst | |
| parent | 10116d40d8794825c42b2440524411cd406d1f93 (diff) | |
| download | cpython-git-a6cd0cf0f5530f1e96114927b2824f6dc61f1bbd.tar.gz | |
Issue #11277: 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/library/mmap.rst')
| -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 5001d4f55e..e061088a69 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 |