Hello, I have multiple threads, one of them is realtime, one other is responsible for controlling the service.
The controlling thread blocks on some linux sockets, the realtime one has a select on a RT socket and a timeout. I now have the problem that I need to wake up the other thread under some circumstances, not always (then I would just poll), but potentially in regular burst (forwarding packets). >From the docs, XDDP seems the only solution, I wonder if there are more. 1) Connect the threads with a XDDP socket, add the fd in the select calls. 2) Atleast when Linux is waking up Xenomai, I could use an IDDP/BUFP socket with the linux thread then being promoted for the duration of the call. 3) Signals? Could they be used to interrupt the select (both linux and cobalt variant)?. The POSIX skin has no pselect so I wonder how I would make sure the signal is only delivered during select All the RTIPC sockets seem to use a global pool of ports, and I believe XDDP to be rather heavyweight.I am looking for an efficient way (in total CPU time) to unblock a thread, It does not need to have lowest latency. (Note that this is in the same process, so I would prefer something like socketpair to open up an anonymous "pipe" not feeding from global ports). Mit besten Grüßen / Kind regards NORBERT LANGE AT-DES ANDRITZ HYDRO GmbH Eibesbrunnergasse 20 1120 Vienna / AUSTRIA p: +43 50805 56684 norbert.la...@andritz.com andritz.com ________________________________ This message and any attachments are solely for the use of the intended recipients. They may contain privileged and/or confidential information or other information protected from disclosure. If you are not an intended recipient, you are hereby notified that you received this email in error and that any review, dissemination, distribution or copying of this email and any attachment is strictly prohibited. If you have received this email in error, please contact the sender and delete the message and any attachment from your system. ANDRITZ HYDRO GmbH Rechtsform/ Legal form: Gesellschaft mit beschränkter Haftung / Corporation Firmensitz/ Registered seat: Wien Firmenbuchgericht/ Court of registry: Handelsgericht Wien Firmenbuchnummer/ Company registration: FN 61833 g DVR: 0605077 UID-Nr.: ATU14756806 Thank You ________________________________
