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freebsd/usr.bin/sed
Jilles Tjoelker 919e14f01e sed: Try hard links to make -i target available continually.
When creating a backup file, sed renamed the original before renaming the
changed copy into place, leading to a short time when no file with the
original name was present (usually only visible on SMP systems). Try
creating the backup file using a hard link instead, avoiding this problem.
If creating the hard link fails for any reason, fall back to the old rename
method.

When not creating a backup file, sed already renamed the changed copy onto
the original. This remains unchanged.

I am not adding the suppression of redundant fchown/fchmod to this commit,
because FreeBSD appears to check this in the kernel (for msdosfs at least).

PR:		bin/153261
Submitted by:	Pedro F. Giffuni
Reviewed by:	dds (older version)
Obtained from:	Illumos
MFC after:	2 weeks
2011-01-08 00:03:18 +00:00
..
compile.c
defs.h
extern.h
main.c sed: Try hard links to make -i target available continually. 2011-01-08 00:03:18 +00:00
Makefile
misc.c
POSIX
process.c
sed.1