grand-central-dispatch tutorials

How can I check a dispatch queue is empty or not?

Apr 23, 2018

Should a `.barrier` on a concurrent queue become active immediately?

Oct 30, 2022

swift grand-central-dispatch swift3 xcode8

dispatch_async a custom queue never exits block

Feb 26, 2022

objective-c ios multithreading grand-central-dispatch

Running code from a specific thread in Swift

Jul 24, 2018

ios swift grand-central-dispatch nsthread

Resolving Data Race in iOS Swift

Oct 23, 2022

swift grand-central-dispatch data-race

How can I create a reference cycle using dispatchQueues?

Sep 11, 2022

swift memory-management memory-leaks closures grand-central-dispatch

Dispatch Group wait stuck forever

Dec 28, 2021

ios swift grand-central-dispatch

How to notify a UITableViewController that data is ready to be displayed?

Jun 12, 2020

iphone objective-c asynchronous uitableview grand-central-dispatch

Parallel processing in Python à la Grand Central Dispatch?

Jul 21, 2022

python parallel-processing grand-central-dispatch

dispatch_write() and dispatch_read() usage

May 26, 2016

macos file-io grand-central-dispatch

periodically update textfield inside a NSTableCellView with a timer

Jun 19, 2022

swift timer grand-central-dispatch nstableview

Downloading files in serial order using NSURLConnection in iOS

Apr 05, 2022

ios objective-c ios7 ios8 grand-central-dispatch

How to execute a task after location permission granted ios

Jun 10, 2022

ios swift permissions grand-central-dispatch cllocationmanager

How do I use Grand Central Dispatch to kick off one asynchronous call?

Sep 26, 2022

objective-c cocoa grand-central-dispatch

ios coredata updates not seen on different managed object contexts - data is different between contexts

Aug 21, 2019

objective-c ios core-data grand-central-dispatch

Is dataWithContentsOfURL bad when launching the app?

Jul 03, 2022

objective-c multithreading grand-central-dispatch

Getting EXC_BAD_ACCESS when using dispatch_async with Core Data

May 01, 2021

iphone objective-c core-data automatic-ref-counting grand-central-dispatch

Detect CPU cores on iOS device [duplicate]

Jan 19, 2018

ios objective-c grand-central-dispatch

UICollectionView Cell Image changing as it comes into view with GCD

Apr 09, 2022

iphone ios ipad grand-central-dispatch uicollectionview

dispatch_source_cancel on a suspended timer causes EXC_BAD_INSTRUCTION

Feb 09, 2022

iphone ios ios5 grand-central-dispatch dispatchertimer

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