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leverage of new kevent timer granularity functionality #113

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Merged
merged 1 commit into from
Jul 20, 2016
Merged

leverage of new kevent timer granularity functionality #113

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3 changes: 3 additions & 0 deletions src/shims/linux_stubs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -82,10 +82,13 @@ typedef void (*dispatch_mach_msg_destructor_t)(void*);

#define IGNORE_KEVENT64_EXT /* will force the kevent64_s.ext[] to not be used -> leeway ignored */

#ifndef NOTE_SECONDS
#define NOTE_SECONDS 0x01
#define NOTE_USECONDS 0x02
#define NOTE_NSECONDS 0x04
#define NOTE_ABSOLUTE 0x08
#define KEVENT_NSEC_NOT_SUPPORTED
#endif
#define NOTE_CRITICAL 0x10
#define NOTE_BACKGROUND 0x20
#define NOTE_LEEWAY 0x40
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4 changes: 4 additions & 0 deletions src/source.c
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Expand Up @@ -2341,11 +2341,15 @@ _dispatch_kevent_timer_set_delay(_dispatch_kevent_qos_s *ke, uint64_t delay,
{
// call to update nows[]
_dispatch_source_timer_now(nows, DISPATCH_TIMER_KIND_WALL);
#if KEVENT_NSEC_NOT_SUPPORTED
// adjust nsec based delay to msec based and ignore leeway
delay /= 1000000L;
if ((int64_t)(delay) <= 0) {
delay = 1; // if value <= 0 the dispatch will stop
}
#else
ke->fflags |= NOTE_NSECONDS;
#endif
ke->data = (int64_t)delay;
}

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