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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 125b34f3c7..f036a60ce0 100644 --- a/Doc/library/mmap.rst +++ b/Doc/library/mmap.rst @@ -94,6 +94,10 @@ memory but does not update the underlying file. 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 |