Re: StartupItems
Re: StartupItems
- Subject: Re: StartupItems
- From: "Finlay Dobbie" <email@hidden>
- Date: Mon, 15 May 2006 20:00:40 +0100
On 15/05/06, Peter Bierman <email@hidden> wrote:
At 10:45 AM +0100 5/15/06, Finlay Dobbie wrote:
>On 15/05/06, Kevin Van Vechten <email@hidden> wrote:
>>Lastly, StartupItems are on their way out, and unless you're seeking
>>compatibility with pre-Tiger (10.4) systems, you'd be better off
>>using a launchd plist.
>
>launchd doesn't have daemon dependency support, last I checked.
That's because the dependency mechanism is much tighter than strings.
launchd allows daemons to "publish" a service via an IPC mechanism
such as a socket or mach port. Clients connect to the known port, and
bing! the service appears.
That's all well and good if you're in control of all the variables in
the equation and don't mind special-casing OS X support.
That's much more efficient than starting a service and vending a name
hoping someone wants to use it, or wants to wait for it.
Depends. In a server environment, I'd want the service available and
ready to take client connections immediately - without any startup
overhead - especially if it needs to perform lengthy initialisation.
-- Finlay
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