aboutsummaryrefslogtreecommitdiffstats
path: root/library/cpp/actors/core/scheduler_basic.h
blob: 6921bd07e2a468c1b1bc5d8ff80695b384748b1e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
#pragma once

#include "actorsystem.h"
#include "monotonic.h"
#include "scheduler_queue.h"
#include <library/cpp/actors/util/queue_chunk.h>
#include <library/cpp/threading/future/legacy_future.h> 
#include <util/generic/hash.h>
#include <util/generic/map.h>

namespace NActors {

    class TBasicSchedulerThread: public ISchedulerThread {
        // TODO: replace with NUMA-local threads and per-thread schedules
        const TSchedulerConfig Config;

        struct TMonCounters;
        const THolder<TMonCounters> MonCounters;

        TActorSystem* ActorSystem;
        volatile ui64* CurrentTimestamp;
        volatile ui64* CurrentMonotonic;

        ui32 TotalReaders;
        TArrayHolder<NSchedulerQueue::TReader*> Readers;

        volatile bool StopFlag;

        typedef TMap<ui64, TAutoPtr<NSchedulerQueue::TQueueType>> TMomentMap; // intrasecond queues
        typedef THashMap<ui64, TAutoPtr<TMomentMap>> TScheduleMap;            // over-second schedule

        TScheduleMap ScheduleMap;

        THolder<NThreading::TLegacyFuture<void, false>> MainCycle;

        static const ui64 IntrasecondThreshold = 1048576; // ~second

        void CycleFunc();

    public:
        TBasicSchedulerThread(const TSchedulerConfig& config = TSchedulerConfig());
        ~TBasicSchedulerThread();

        void Prepare(TActorSystem* actorSystem, volatile ui64* currentTimestamp, volatile ui64* currentMonotonic) override;
        void PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) override;

        void PrepareStart() override;
        void Start() override;
        void PrepareStop() override;
        void Stop() override;
    };

    class TMockSchedulerThread: public ISchedulerThread {
    public:
        virtual ~TMockSchedulerThread() override {
        }

        void Prepare(TActorSystem* actorSystem, volatile ui64* currentTimestamp, volatile ui64* currentMonotonic) override {
            Y_UNUSED(actorSystem);
            *currentTimestamp = TInstant::Now().MicroSeconds();
            *currentMonotonic = GetMonotonicMicroSeconds();
        }

        void PrepareSchedules(NSchedulerQueue::TReader** readers, ui32 scheduleReadersCount) override {
            Y_UNUSED(readers);
            Y_UNUSED(scheduleReadersCount);
        }

        void Start() override {
        }

        void PrepareStop() override {
        }

        void Stop() override {
        }
    };

    ISchedulerThread* CreateSchedulerThread(const TSchedulerConfig& cfg);

}