A NOTE has been added to this issue. ====================================================================== http://austingroupbugs.net/view.php?id=1186 ====================================================================== Reported By: davmac Assigned To: ====================================================================== Project: 1003.1(2016)/Issue7+TC2 Issue ID: 1186 Category: System Interfaces Type: Clarification Requested Severity: Editorial Priority: normal Status: New Name: Davin McCall Organization: User Reference: Section: pselect Page Number: 1554-1555 Line Number: 50880 Interp Status: --- Final Accepted Text: ====================================================================== Date Submitted: 2018-02-02 18:47 UTC Last Modified: 2018-02-04 20:00 UTC ====================================================================== Summary: pselect specification allows for race condition that pselect was created to avoid ======================================================================
---------------------------------------------------------------------- (0003918) jilles (reporter) - 2018-02-04 20:00 http://austingroupbugs.net/view.php?id=1186#c3918 ---------------------------------------------------------------------- See also issue 680 and the thread on austin-group-l titled "pselect() clarification" from 18-20 April 2013. The intent seems to be that [EINTR] occur only when a signal interrupts blocking and no descriptors are ready, but a signal may be delivered even if [EINTR] does not occur. There are implementations such as FreeBSD that can both deliver a signal and return ready descriptors in a single call. The requirement that the signal mask shall be replaced before examining the descriptors must apparently be interpreted differently than a pthread_sigmask() call, so that the signal handler is not immediately invoked, but will be invoked before pselect() returns, even if descriptors are ready or the timeout is 0. Issue History Date Modified Username Field Change ====================================================================== 2018-02-02 18:47 davmac New Issue 2018-02-02 18:47 davmac Name => Davin McCall 2018-02-02 18:47 davmac Section => pselect 2018-02-02 18:47 davmac Page Number => 1554-1555 2018-02-02 18:47 davmac Line Number => 50880 2018-02-02 19:33 davmac Note Added: 0003917 2018-02-04 20:00 jilles Note Added: 0003918 ======================================================================
