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
|
#include "grpc_io.h"
#include <contrib/libs/grpc/include/grpc/grpc.h>
#include <contrib/libs/grpc/src/core/lib/config/core_configuration.h>
#include <contrib/libs/grpc/src/core/lib/event_engine/thread_pool.h>
#include <contrib/libs/grpc/src/core/lib/iomgr/exec_ctx.h>
#include <contrib/libs/grpc/src/core/lib/iomgr/executor.h>
#include <contrib/libs/grpc/src/core/lib/surface/completion_queue.h>
#include <contrib/libs/grpc/include/grpc/impl/codegen/log.h>
#include <util/generic/yexception.h>
#include <util/string/cast.h>
#include <util/system/env.h>
#include <util/system/mutex.h>
#include <util/system/thread.h>
namespace NUnifiedAgent {
namespace {
std::once_flag GrpcConfigured{};
} // namespace
TGrpcNotification::TGrpcNotification(grpc::CompletionQueue& completionQueue, THolder<IIOCallback>&& ioCallback)
: CompletionQueue(completionQueue)
, IOCallback(std::move(ioCallback))
, Completion(MakeHolder<grpc_cq_completion>())
, InQueue(false)
{
}
TGrpcNotification::~TGrpcNotification() = default;
void TGrpcNotification::Trigger() {
{
bool inQueue = false;
if (!InQueue.compare_exchange_strong(inQueue, true)) {
return;
}
}
grpc_core::ApplicationCallbackExecCtx callbackExecCtx;
grpc_core::ExecCtx execCtx;
IOCallback->Ref();
Y_ABORT_UNLESS(grpc_cq_begin_op(CompletionQueue.cq(), this));
grpc_cq_end_op(CompletionQueue.cq(), this, y_absl::OkStatus(),
[](void* self, grpc_cq_completion*) {
Y_ABORT_UNLESS(static_cast<TGrpcNotification*>(self)->InQueue.exchange(false));
},
this, Completion.Get());
}
bool TGrpcNotification::FinalizeResult(void** tag, bool*) {
*tag = IOCallback.Get();
return true;
}
TGrpcTimer::TGrpcTimer(grpc::CompletionQueue& completionQueue, THolder<IIOCallback>&& ioCallback)
: CompletionQueue(completionQueue)
, IOCallback(std::move(ioCallback))
, Alarm()
, AlarmIsSet(false)
, NextTriggerTime(Nothing())
{
}
void TGrpcTimer::Set(TInstant triggerTime) {
if (AlarmIsSet) {
NextTriggerTime = triggerTime;
Alarm.Cancel();
} else {
AlarmIsSet = true;
Alarm.Set(&CompletionQueue, InstantToTimespec(triggerTime), Ref());
}
}
void TGrpcTimer::Cancel() {
NextTriggerTime.Clear();
if (AlarmIsSet) {
Alarm.Cancel();
}
}
IIOCallback* TGrpcTimer::Ref() {
IOCallback->Ref();
return this;
}
void TGrpcTimer::OnIOCompleted(EIOStatus status) {
Y_ABORT_UNLESS(AlarmIsSet);
if (NextTriggerTime) {
Alarm.Set(&CompletionQueue, InstantToTimespec(*NextTriggerTime), this);
NextTriggerTime.Clear();
} else {
AlarmIsSet = false;
IOCallback->OnIOCompleted(status);
}
}
TGrpcCompletionQueuePoller::TGrpcCompletionQueuePoller(grpc::CompletionQueue& queue)
: Queue(queue)
, Thread()
{
}
void TGrpcCompletionQueuePoller::Start() {
Thread = std::thread([this]() {
TThread::SetCurrentThreadName("ua_grpc_cq");
void* tag;
bool ok;
while (Queue.Next(&tag, &ok)) {
try {
static_cast<IIOCallback*>(tag)->OnIOCompleted(ok ? EIOStatus::Ok : EIOStatus::Error);
} catch (...) {
Y_ABORT("unexpected exception [%s]", CurrentExceptionMessage().c_str());
}
}
});
}
void TGrpcCompletionQueuePoller::Join() {
Thread.join();
}
TGrpcCompletionQueueHost::TGrpcCompletionQueueHost()
: CompletionQueue()
, Poller(CompletionQueue)
{
}
void TGrpcCompletionQueueHost::Start() {
Poller.Start();
}
void TGrpcCompletionQueueHost::Stop() {
CompletionQueue.Shutdown();
Poller.Join();
}
gpr_timespec InstantToTimespec(TInstant instant) {
gpr_timespec result;
result.clock_type = GPR_CLOCK_REALTIME;
result.tv_sec = static_cast<int64_t>(instant.Seconds());
result.tv_nsec = instant.NanoSecondsOfSecond();
return result;
}
void EnsureGrpcConfigured() {
std::call_once(GrpcConfigured, []() {
// Set thread limits before any gRPC activity (these are static parameters)
const auto limitStr = GetEnv("UA_GRPC_EXECUTOR_THREADS_LIMIT");
ui64 limit;
if (limitStr.empty() || !TryFromString(limitStr, limit)) {
limit = 2;
}
grpc_core::Executor::SetThreadsLimit(limit);
grpc_event_engine::experimental::ThreadPool::SetThreadsLimit(limit);
// Force CoreConfiguration initialization to register all service config parsers
// This fixes UNIFIEDAGENT-1341 without forcing full grpc_init() which would
// interfere with other library initializations (e.g., Arrow in YDB)
// Let grpc_init() happen naturally when first channel is created
grpc_core::CoreConfiguration::Get();
});
}
void StartGrpcTracing() {
grpc_tracer_set_enabled("all", true);
gpr_set_log_verbosity(GPR_LOG_SEVERITY_DEBUG);
}
void FinishGrpcTracing() {
grpc_tracer_set_enabled("all", false);
gpr_set_log_verbosity(GPR_LOG_SEVERITY_ERROR);
}
} // namespace NUnifiedAgent
|
