Thomas Munro <tmu...@postgresql.org> writes: > To make \watch react quickly when the user quits the pager or presses > ^C, and also to increase the accuracy of its timing and decrease the > rate of useless context switches, change the main loop of the \watch > command to use sigwait() rather than a sleeping/polling loop, on Unix.
I think this is going to fall over on gaur, which doesn't have POSIX-style sigwait. We've escaped dealing with that so far because our only existing use of sigwait is hidden under #if defined(ENABLE_THREAD_SAFETY) && !defined(WIN32) Perhaps the easiest answer is to make the #if conditional for this code look like that too. regards, tom lane