Apple seems to have pulled the ancient "Moriarity" example which demonstrates basic use of NSTask, but my cleanup of it should still work.
<https://github.com/aglee/MoreArty> --Andy On Aug 13, 2012, at 6:42 PM, Kyle Sluder <[email protected]> wrote: > On Mon, Aug 13, 2012, at 02:17 PM, Charlie Dickman wrote: >> I'm trying to get the output from a vm_stat command using the following >> code. My app hangs in the [vmRead availableData] call as it should if >> there is no data available but it never comes back. What am I doing >> wrong? I have searched through the sample code on apples developer site >> with no luck. >> >> NSPipe *vmPipe = [NSPipe pipe]; >> NSFileHandle *vmRead = [vmPipe fileHandleForReading]; >> >> [vm setLaunchPath: @"/usr/bin/vm_stat"]; // 1 page = 4096 >> bytes >> [vm setStandardOutput: vmPipe]; >> [vm launch]; >> NSData *vmData = nil; >> int vmDataLength = 0; >> do { >> vmData = [vmRead availableData]; >> vmDataLength = [vmData length]; >> } while (vmDataLength != 0); > > > You can't do this. You need to run the runloop. > > --Kyle Sluder > _______________________________________________ > > Cocoa-dev mailing list ([email protected]) > > 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: > https://lists.apple.com/mailman/options/cocoa-dev/aglee%40mac.com > > This email sent to [email protected] _______________________________________________ Cocoa-dev mailing list ([email protected]) 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
