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detect when USB serial adapters have been pulled on OSX

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(was spinning in poll())
This commit is contained in:
gardners 2013-04-26 16:51:31 +09:30
parent 05d4c14188
commit bca0145b13
1 changed files with 5 additions and 0 deletions
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5
fdqueue.c
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@ -303,7 +303,12 @@ int fd_poll()
if (fds[i].revents) {
int fd = fds[i].fd;
/* Call the alarm callback with the socket in non-blocking mode */
errno=0;
set_nonblock(fd);
// Work around OSX behaviour that doesn't set POLLERR on
// devices that have been deconfigured, e.g., a USB serial adapter
// that has been removed.
if (errno == ENXIO) fds[i].revents|=POLLERR;
call_alarm(fd_callbacks[i], fds[i].revents);
/* The alarm may have closed and unwatched the descriptor, make sure this descriptor still matches */
if (i<fdcount && fds[i].fd == fd)