jilles 0a8c57af78 Add pwait utility, which waits for any process to terminate.
This is similar to the Solaris utility of the same name.

Some use cases:
* rc.subr's wait_for_pids
* interactive use, e.g. to shut down the computer when some task is done
  even if the task is already running

Discussed on:	hackers@
2009-11-17 22:47:20 +00:00
..
2009-10-15 18:17:29 +00:00
2009-06-23 23:30:56 +00:00
2009-10-17 15:53:15 +00:00
2009-01-30 16:23:57 +00:00
2009-06-23 23:30:56 +00:00
2006-12-18 15:45:01 +00:00
2007-03-04 19:52:07 +00:00
2009-11-02 12:35:38 +00:00
2009-06-23 23:30:56 +00:00
2007-03-04 09:15:12 +00:00
2006-12-27 11:28:00 +00:00
2009-09-04 21:49:37 +00:00
2009-11-17 07:29:35 +00:00
2006-12-27 12:14:56 +00:00
2009-09-07 16:19:32 +00:00
2005-08-07 09:11:38 +00:00
2009-10-15 18:17:29 +00:00