X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=GHC%2FConc.lhs;h=8476498c1f2d1caba26efdd6a7b0d53c3919b417;hb=04a66406a173c23a85081d3768a0364a03d6af5c;hp=6b258ded18c9fae6537fc590531d97ae66f45145;hpb=0425e42d530ad34fbef2529a20ba326dbd4109b7;p=ghc-base.git diff --git a/GHC/Conc.lhs b/GHC/Conc.lhs index 6b258de..8476498 100644 --- a/GHC/Conc.lhs +++ b/GHC/Conc.lhs @@ -573,24 +573,26 @@ service_loop wakeup readfds writefds ptimeval old_reqs old_delays = do fdSet wakeup readfds maxfd <- buildFdSets 0 readfds writefds reqs - -- check the current time and wake up any thread in threadDelay whose - -- timeout has expired. Also find the timeout value for the select() call. - now <- getTicksOfDay - (delays', timeout) <- getDelay now ptimeval delays - -- perform the select() - let do_select = do + let do_select delays = do + -- check the current time and wake up any thread in + -- threadDelay whose timeout has expired. Also find the + -- timeout value for the select() call. + now <- getTicksOfDay + (delays', timeout) <- getDelay now ptimeval delays + res <- c_select ((max wakeup maxfd)+1) readfds writefds nullPtr timeout if (res == -1) then do err <- getErrno if err == eINTR - then do_select - else return res + then do_select delays' + else return (res,delays') else - return res - res <- do_select + return (res,delays') + + (res,delays') <- do_select delays -- ToDo: check result b <- takeMVar prodding