src/lib/libutil/flopen.c, branch release/8.2.0_cvs

Copy releng/8.2 to release/8.2.0 for 8.2-RELEASE.

2011-02-16T16:18:46+00:00

Approved by:	re (implicit)

This commit was manufactured to restore the state of the 8.2-RELEASE image.

Revert (once again, and hopefully for the last time) to flock(2) locks.

2009-06-06T18:47:03+00:00

The problem with fcntl(2) locks is that they are not inherited by child
processes.  This breaks pidfile(3), where the common idiom is to open
and lock the PID file before daemonizing.

Diff reduction against Varnish, including one important fix: use a shared

2008-10-20T18:11:30+00:00

lock if the file is opened with O_RDONLY.

Reimplement flopen(3) using fcntl(2) locks instead of flock(2) locks.

2008-10-20T18:02:16+00:00

Back out previous commit until I figure out why my regression test fails.

2007-08-03T09:20:28+00:00

Approved by:	re (kensmith)

Use fcntl(2)-style locks instead of less-portable flock(2)-style locks.

2007-08-03T06:32:45+00:00

Approved by:	re (kensmith)

Nit: avoid shadowing truncate(2) with a local variable.

2007-05-23T12:09:33+00:00

Fix stupid braino in previous commit.

2007-05-23T10:06:03+00:00

If (flags & O_TRUNC), don't truncate the file until we've successfully

2007-05-23T08:12:34+00:00

locked it.

MFC after:	3 weeks

Well gag me with a spoon... I'm so used to working at high WARNS levels

2007-05-10T15:01:42+00:00

that I make stupid fundamental mistakes like this when I don't.