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Kernel: Add CLOCK_REALTIME support to the TimerQueue

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This allows us to use blocking timeouts with either monotonic or
real time for all blockers. Which means that clock_nanosleep()
now also supports CLOCK_REALTIME.

Also, switch alarm() to use CLOCK_REALTIME as per specification.
This commit is contained in:
Tom 2020-12-01 16:53:47 -07:00 • committed by Andreas Kling
parent 4c1e27ec65
commit 12cf6f8650
9 changed files with 182 additions and 97 deletions
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Kernel/Time/TimeManagement.h
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@ -29,6 +29,7 @@
#include <AK/NonnullRefPtrVector.h>
#include <AK/RefPtr.h>
#include <AK/Types.h>
#include <Kernel/KResult.h>
#include <Kernel/UnixTypes.h>
namespace Kernel {
@ -49,6 +50,7 @@ public:
static timespec ticks_to_time(u64 ticks, time_t ticks_per_second);
static u64 time_to_ticks(const timespec& tspec, time_t ticks_per_second);
KResultOr<timespec> current_time(clockid_t clock_id) const;
timespec monotonic_time() const;
timespec epoch_time() const;
void set_epoch_time(timespec);