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Fix write-region to null device on MS-Windows

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* src/fileio.c (write_region) [WINDOWSNT]: Ignore EBADF errors
from fsync -- this means fsync is not supported for this file.
Happens, for example, with the null device.  (Bug#59545)
This commit is contained in:
Eli Zaretskii 2022-12-21 21:23:51 +02:00
parent f35da11199
commit ec9fbad908
1 changed files with 7 additions and 3 deletions
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10
src/fileio.c
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@ -5387,12 +5387,16 @@ write_region (Lisp_Object start, Lisp_Object end, Lisp_Object filename,
{
/* Transfer data and metadata to disk, retrying if interrupted.
fsync can report a write failure here, e.g., due to disk full
under NFS. But ignore EINVAL, which means fsync is not
supported on this file. */
under NFS. But ignore EINVAL (and EBADF on Windows), which
means fsync is not supported on this file. */
while (fsync (desc) != 0)
if (errno != EINTR)
{
if (errno != EINVAL)
if (errno != EINVAL
#ifdef WINDOWSNT
&& errno != EBADF
#endif
)
ok = 0, save_errno = errno;
break;
}