On Wed, Mar 31, 2010 at 12:24:21PM +0900, Murali K. Vemuri wrote: >unfortunately, my process does not block. So, I cannot use "watch" on >it. >is there any alternative applet to do this? > >Thanks & regards >Murali > >On Tue, 2010-03-30 at 21:54 -0500, Rob Landley wrote: >> On Tuesday 30 March 2010 20:55:50 Murali K. Vemuri wrote: >> > Hi , >> > >> > I use busybox version 1.16.1. >> > I have two processes that have to be running all the time, but with some >> > differences in behavior. >> > >> > process 1: This process must be up and running all the time, but need >> > not be re-run every now and then. All I need is to ensure this process >> > exits, its automatically re-run.
/etc/inittab: null::respawn:/usr/local/sbin/my_process1 (assuming it doesn't need a tty) >> > >> > process 2: this process has a life span of about 20 seconds. So, I need >> > to make sure every 20 sec, this is run. This process exits >> > automatically. if you want to automatically respawn it then i'd just respawn it like process1. If you need a delay between runs, then respawn a script that does something like: cat /usr/local/sbin/my_process2.sh<<EOF #!/bin/sh /usr/local/sbin/my_process2 sleep 5 EOF chmod +x /usr/local/sbin/my_process2.sh See examples/inittab for further details on how to configure init. >> > >> > In the second case, I use "watch -t -n 25 process2" and that serves my >> > purpose. >> > But how do I achieve the process 1 functionality? >> >> If your process blocks, "watch -n 1 your process should work" just in the >> first >> case as in the second. Watch won't interrupt it if it takes longer than 1 >> second to run, that's just how long it blocks between invocations. >> >> Try "watch -n 1 sleep 10" to see what I mean. _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
