Add a new `W' flag, that when used in conjunction with the `Z' flag or the

`J' flag means that newsyslog should wait for previously started compression
jobs to complete before starting a new one for this entry.  When it is used
along with the `G' flag, in the case when several logfiles match the pattern
and should be compressed, the newsyslog will compress logs one by one,
ensuring that only one compression job is running at a time.

This prevents newsyslog(8) from overloading system by starting several
compression jobs on big files simultaneously.

Sponsored by:	Porta Software Ltd
MFC after:	2 weeks

1 files changed, 18 insertions, 0 deletions

diff --git a/usr.sbin/newsyslog/newsyslog.8 b/usr.sbin/newsyslog/newsyslog.8
index 03f540b..ea24206 100644
--- a/usr.sbin/newsyslog/newsyslog.8
+++ b/usr.sbin/newsyslog/newsyslog.8
@@ -292,6 +292,7 @@ turned over should not be included.  The
 flag means nothing, but can be used as a placeholder when the
 .Ar path_to_pid_file
 field is specified.
+The
 .Ar G
 flag means that the specified
 .Ar logfile_name
@@ -302,6 +303,23 @@ options.
 See
 .Xr glob 3
 for details on syntax and matching rules.
+The
+.Ar W
+flag
+in conjunction with the
+.Ar Z
+flag or the
+.Ar J
+flag means that
+.Nm
+should wait for previously started compression jobs to complete before
+starting a new one for this entry.  When it is used along with the
+.Ar G
+flag, in the case when several logfiles match the pattern and should be
+compressed, the
+.Nm
+will compress logs one by one, ensuring that only one compression job
+is running at a time.
 .It Ar path_to_pid_file
 This optional field specifies
 the file name to read to find the daemon process id.  If this