2009/8/18 Per Jessen <per@xxxxxxxxxxxx>: > Jim Lucas wrote: > >> Does anybody know how to use PHP as a daemon without the use of >> pcntl_fork. >> > > Sure. Just start it and leave it running. > >> I want to launch a daemon out of the /etc/rc.local when the system >> starts. > > Yep, I do that all the time. > >> Anybody have any idea on how to do this? > > On an openSUSE system I would just use 'startproc', but elsewhere you > could use setsid or nohup. I.e. create your CLI script with a > hash-bang, then start it > > nohup <script> 2>&1 1>/dev/null & > > > /Per Again, that's not a daemon. If it is sufficient to run a background process then that's fine, but that doesn't make it a daemon (although it shares some things in common with a daemon). The background process still has a controlling terminal (even if input and output have been redirected), and a fully-implemented daemon will typically perform other tasks which make it a good system citizen, such as: becoming session leader, chroot'ing to / so that the filesystem it was started from can be unmounted if necessary, and so on. The difference may or may not be important, depending on the task at hand. However, if an admin thinks he's got a daemon on his hands he may wonder why things behave weird if what he really has is just something which fakes it with & and nohup, since none of the important daemon housekeeping has been dealt with. Torben -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
