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Implement notifyd-based notification strategy for universal variables

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(OS X specific)
This commit is contained in:
ridiculousfish
2014-04-30 15:50:03 -07:00
parent 08d6e515c7
commit 60c8012e9e
4 changed files with 151 additions and 12 deletions
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18
input_common.cpp
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@@ -116,7 +116,15 @@ static wint_t readb()
/* Get our uvar notifier */
universal_notifier_t &notifier = universal_notifier_t::default_notifier();
/* Get the suggested delay */
/* Get the notification fd (possibly none) */
int notifier_fd = notifier.notification_fd();
if (notifier_fd > 0)
{
FD_SET(notifier_fd, &fdset);
fd_max = maxi(fd_max, notifier_fd);
}
/* Get the suggested delay (possibly none) */
struct timeval tv = {};
const unsigned long usecs_delay = notifier.usec_delay_between_polls();
if (usecs_delay > 0)
@@ -180,9 +188,15 @@ static wint_t readb()
}
}
/* Notifiers either poll or have an fd, not both. So at most one of these branches will be taken. */
if (notifier.poll())
{
fprintf(stderr, "Change note\n");
env_universal_barrier();
}
if (notifier_fd > 0 && FD_ISSET(notifier_fd, &fdset))
{
notifier.drain_notification_fd(notifier_fd);
env_universal_barrier();
}