-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Bjorn,
On 11/25/2013 02:57 PM, Björn Stenberg wrote: > Hi. > > I'm looking into adding DANE support to libcurl using the unbound > library. Curl has an asynchronous API that supports a high number > of parallel connections. Some use cases involve thousands of > parallel connections to different hosts. > > My understanding of > https://unbound.net/documentation/libunbound-tutorial-4.html is > that the libunbound asynchronous API uses a periodic polling call > for each separate name lookup. This means that if we have a large > number of lookups, a lot of work has to be performed just for > waiting. > > I would like to propose that the caller gets a file descriptor for > each lookup, so he can use select() to wait on all pending lookups > without having to loop through them. With ub_fd() you can get a file descriptor for all of the open queries for that ub_context. And then use select() to wait on it? If libcurl uses libevent internally, there is currently an experimental API in svn trunk libunbound/unbound-event.h that exposes a hook where you can get unbound to add its events to your libevent event loop. Best regards, Wouter -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJSk1rGAAoJEJ9vHC1+BF+NhZ8QAIo0GDHCzYlIkuhxlweMk1DJ mH/JFwakAepu9biGdb1hhSDE6qjyTKhaBfkjXsHOUL1YOuy1HRMn5dzxeFCrwh60 GYyoRB8l0N6CfpAwJcrzti2WANXMec5sNVEFZkMqfZbJ0mzpbLnegOmdZrspSAhl idZTxxnatu4JDVlQ27Dl9XpHgAV7T5zxSDBlqKLM6ny21xXEzHjFdkX/XjNO5j0o KUauokmpVcTFTwXTu+JvADFbnelIj63S6o4bH1HlOyKA7PlDaMaXCNs+uhV5wNOB gcRcOlCmhYrvqIpkSu0UjNZv1gNdaGO9US6uVpkdDcybc62Mzwwxqf0PNqHM4Yp1 Y2MNLJlp5T7WBfrswuT0mmEScujojlozJKHofTqw3WXwNy7aBFJyVEF7WxhW9In1 p9Bck0qVmN7BfJ369nO1BQkP9UFadAf3q3Rtw0kQhraiblZ6YC+ZAbLaOPfh81iS wca9qxcVvdlXq3Q6STsxe49WLP2C2pWwxfQHHxtVQbLWJ/yddVo/L3wmBJ5eRkW4 Zl6V9t0QBG+Fn+njAidkAfJqeueJYUTwYHhv7tyCVc1etRDZXM+vEZOrENrYUf4c kawJA8CvQ/Xji9shHl1onf2z/KKuzziI56mnpbESj4vo78NzX5p8h8kdZ3kO/QNN Wj2535vGz8m/rPzAvDCX =EyE1 -----END PGP SIGNATURE----- _______________________________________________ Unbound-users mailing list [email protected] http://unbound.nlnetlabs.nl/mailman/listinfo/unbound-users
