On 24 oct. 2010, at 19:03, eveningnick eveningnick wrote: > Hello! > I am wondering, if NSTask can be replaced with low-level fork/exec > calls. Looking through forums, i often met statements that launching a > process with "fork/exec" is not an "OS X way", especially if i am > using Cocoa framework (and i am using Cocoa!).
Yes you can use fork/exec, that's what NSTask does. > What i want to do - is to launch an application and just leave it > running (i don't want to wait until it terminates, and i don't need > its exitcode - my app spawns it and forgets about it, doing other > jobs). Another condition - this application should be launched by > executing its binary, rather than through emulation of a doubleclick > on its *.app bundle (my bundle has several executables - maybe this > also not Mac-way, but it is done for modularity and safety of the > application, when one part crashes, the rest shouldn't crash - anyway, > the visible behavior of my app is what user expects) - and I read that > Launch Services doesn't support launching separate binaries - only > bundles are supported. Are you sure about that? > What could be the pitfalls with using fork/exec method? I have found > it's the most appropriate solution for me, though i don't have a lot > of experience with Mac programming. > > To avoid "Zombie processes" i am using double-forking > (Parent->TemporaryProcess->Child, where TemporaryProcess exits right > after its own forking, and Parent "waitpid"s for TemporaryPS to finish > - as long as TemporaryProcess terminates, Child's parent becomes the > root process). Not great but should work. Better would be to use LaunchServices, if not possible I would use SMJobSubmit() (ServicesManagement framework). Thomas_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
