Would a dispatch queue get what he's looking for? On Jun 28, 2016, at 3:11 PM, Gary L. Wade wrote:
> The simplest way to do what you're asking is to not send another request > until your completion handler finishes. > -- > Gary L. Wade (Sent from my iPhone) > http://www.garywade.com/ > >> On Jun 28, 2016, at 12:52 PM, Jim Adams <jim.ad...@sas.com> wrote: >> >> I have an application that has the requirement that the accesses to the >> server be single threaded, i.e. the second request cannot go through until >> the first request has completed. I am using NSURLSession and >> NSURLSessionDataTask. I have set the Maximum Concurrent Host number in the >> configuration to 1 but I have seen evidence that there are simultaneous >> requests going up to my servers. >> >> Actually I don’t think they are truly simultaneous, just that the completion >> handler doesn’t finish before the next request goes out. Is there a way to >> make the next request wait until the completion block is exited? >> >> My evidence comes from looking in the server logs. I have 3 servers in AWS >> behind an ELB. If I am able to get the cookies back from the server before >> sending the next request then my request will go to the same server that the >> last request went to. If I don’t wait then then the request goes to a random >> server. If I watch the logs I can see the requests come in on multiple >> servers. >> > > > _______________________________________________ > > 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: > https://lists.apple.com/mailman/options/cocoa-dev/zav%40mac.com > > This email sent to z...@mac.com _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
