[launchd-dev] Creating a Launch Agent (per user) on demand when client app is open

[Quinn "The Eskimo!"]

On 15 Jan 2015, at 12:25, Piotr Panasewicz <piotr.panasewicz at mac.com> wrote:

> I would like to create a Launch Agent that would start on demand when my bundle app requires it.

I'm not sure I understand your requirements correctly, but the best way to achieve the goal as summarised by the above sentence is to have the agent listen on an IPC channel and have the app send a message on that channel.  And the IPC channel of choice these days is XPC, via the very nice NSXPCConnection API.

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Quinn "The Eskimo!"                    <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware