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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
#pragma once
#include <library/cpp/actors/core/actor.h>
#include <library/cpp/actors/core/events.h>
#include <library/cpp/actors/core/interconnect.h>
#include <library/cpp/actors/core/hfunc.h>
#include <ydb/library/yql/utils/actors/rich_actor.h>
#include <ydb/library/yql/utils/log/log.h>
namespace NYql {
enum EExecutorPoolType {
Main,
FullResultWriter,
TotalCount,
};
template <typename EventType>
struct TRichActorFutureCallback : public TRichActor<TRichActorFutureCallback<EventType>> {
using TCallback = std::function<void(TAutoPtr<NActors::TEventHandle<EventType>>&)>;
using TFailure = std::function<void(void)>;
using TBase = TRichActor<TRichActorFutureCallback<EventType>>;
static constexpr char ActorName[] = "YQL_DQ_ACTOR_FUTURE_CALLBACK";
TRichActorFutureCallback(TCallback&& callback, TFailure&& failure, TDuration timeout)
: TBase(&TRichActorFutureCallback::StateWaitForEvent)
, Callback(std::move(callback))
, Failure(std::move(failure))
, Timeout(timeout)
{ }
private:
const TCallback Callback;
const TFailure Failure;
const TDuration Timeout;
bool TimerStarted = false;
NActors::TSchedulerCookieHolder TimerCookieHolder;
STRICT_STFUNC(StateWaitForEvent,
HFunc(EventType, Handle)
cFunc(NActors::TEvents::TEvBootstrap::EventType, OnFailure)
hFunc(NActors::TEvInterconnect::TEvNodeConnected, [this] (NActors::TEvInterconnect::TEvNodeConnected::TPtr& ev) mutable {
this->Subscribe(ev->Get()->NodeId);
})
hFunc(NActors::TEvInterconnect::TEvNodeDisconnected, [this] (NActors::TEvInterconnect::TEvNodeDisconnected::TPtr& ev) mutable {
this->Unsubscribe(ev->Get()->NodeId);
TimerStarted = true;
OnFailure();
})
hFunc(NActors::TEvents::TEvUndelivered, [this] (NActors::TEvents::TEvUndelivered::TPtr& ev) mutable {
this->Unsubscribe(ev->Sender.NodeId());
TimerStarted = true;
OnFailure();
})
)
void Handle(typename EventType::TPtr ev, const NActors::TActorContext& ctx) {
Y_UNUSED(ctx);
Callback(ev);
this->PassAway();
}
TAutoPtr<NActors::IEventHandle> AfterRegister(const NActors::TActorId& self, const NActors::TActorId& parentId) override {
return new NActors::IEventHandle(self, parentId, new NActors::TEvents::TEvBootstrap, 0);
}
void OnFailure() {
if (TimerStarted) {
Failure();
this->PassAway();
} else {
TimerStarted = true;
TimerCookieHolder.Reset(NActors::ISchedulerCookie::Make2Way());
this->Schedule(Timeout, new NActors::TEvents::TEvBootstrap, TimerCookieHolder.Get());
}
}
};
template <class TDerived>
class TSynchronizableRichActor : public TRichActor<TDerived> {
public:
using TBase = TRichActor<TDerived>;
template <class TEvType>
using TCallback = std::function<void(typename TEvType::TPtr&)>;
using TAbstractCallback = std::function<void(TAutoPtr<NActors::IEventHandle>&)>;
using THandler = typename TBase::TReceiveFunc;
enum ESyncState {
E_IDLE,
E_SYNC_REQUESTED,
E_SYNC_RECEIVED,
};
template <class... Args>
explicit TSynchronizableRichActor(Args&&... args)
: TRichActor<TDerived>(std::forward<Args>(args)...) {}
template <class TEvType>
void Synchronize(TCallback<TEvType> callback) {
switch (SyncState_) {
case E_SYNC_REQUESTED:
throw yexception() << "Synchronization was already requested";
break;
case E_IDLE:
[[fallthrough]];
case E_SYNC_RECEIVED:
InterruptedHandler_ = TBase::CurrentStateFunc();
SyncCallback_ = [callback](TAutoPtr<NActors::IEventHandle>& ev) {
auto* x = reinterpret_cast<typename TEvType::TPtr*>(&ev);
callback(*x);
};
TBase::Become(&TSynchronizableRichActor::SyncHandler);
ExpectedEventType_ = TEvType::EventType;
SyncState_ = E_SYNC_REQUESTED;
break;
}
}
protected:
void AddCriticalEventType(ui32 type) {
CriticalEventTypes_.insert(type);
}
private:
THandler InterruptedHandler_{nullptr};
TDeque<TAutoPtr<NActors::IEventHandle>> DelayedEvents_{};
TAbstractCallback SyncCallback_{nullptr};
ESyncState SyncState_{E_IDLE};
ui32 ExpectedEventType_{0};
THashSet<ui32> CriticalEventTypes_{};
void SyncHandler(TAutoPtr<NActors::IEventHandle>& ev, const NActors::TActorContext& ctx) {
const ui32 etype = ev->GetTypeRewrite();
if (etype == ExpectedEventType_) {
OnSync(ev, ctx);
} else if (CriticalEventTypes_.contains(etype)) {
(this->*InterruptedHandler_)(ev, ctx);
} else {
EnqueueEvent(ev);
}
}
void OnSync(TAutoPtr<NActors::IEventHandle>& ev, const NActors::TActorContext& ctx) {
YQL_LOG(DEBUG) << "OnSync(): delayed messages " << DelayedEvents_.size();
SyncState_ = E_SYNC_RECEIVED;
TBase::Become(InterruptedHandler_);
SyncCallback_(ev);
if (SyncState_ == E_SYNC_REQUESTED) {
return;
}
SyncCallback_ = nullptr;
while (!DelayedEvents_.empty()) {
auto event = std::move(DelayedEvents_.front());
DelayedEvents_.pop_front();
InterruptedHandler_ = TBase::CurrentStateFunc();
(this->*InterruptedHandler_)(event, ctx);
if (SyncState_ == E_SYNC_REQUESTED) {
return;
}
}
InterruptedHandler_ = nullptr;
ExpectedEventType_ = 0;
SyncState_ = E_IDLE;
}
void EnqueueEvent(TAutoPtr<NActors::IEventHandle>& ev) {
DelayedEvents_.emplace_back(ev.Release());
}
};
} // namespace NYql
|
