diff options
| 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 /Modules/mmapmodule.c | |
| 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 'Modules/mmapmodule.c')
| -rw-r--r-- | Modules/mmapmodule.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c index fdf3922356..36ca67d3c1 100644 --- a/Modules/mmapmodule.c +++ b/Modules/mmapmodule.c @@ -23,6 +23,9 @@ #ifndef MS_WINDOWS #define UNIX +# ifdef __APPLE__ +# include <fcntl.h> +# endif #endif #ifdef MS_WINDOWS @@ -1122,6 +1125,12 @@ new_mmap_object(PyTypeObject *type, PyObject *args, PyObject *kwdict) "mmap invalid access parameter."); } +#ifdef __APPLE__ + /* Issue #11277: fsync(2) is not enough on OS X - a special, OS X specific + fcntl(2) is necessary to force DISKSYNC and get around mmap(2) bug */ + if (fd != -1) + (void)fcntl(fd, F_FULLFSYNC); +#endif #ifdef HAVE_FSTAT # ifdef __VMS /* on OpenVMS we must ensure that all bytes are written to the file */ |