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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 128bc90..7a901c9 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 |