feat grpc: update to grpc 1.50.2

update grpc to 1.50.2
update grpcio to 1.50.0

Удаленные патчи:
06-flow_control.patch - логика в upstream удалена
10-fix-crash-on-fork.patch - логика в upstream удалена
12-coverity-fix.patch - логика в upstream удалена
20-P2166-string-nullptr.patch - в upstream временный объект вместо nullptr
PR29209-fix-heap-use-after-free.patch - решение есть в upstream

Добавленные патчи:
pr33085_fix_epoll1_engine_reinit.patch
21-windows_build.patch

1 files changed, 95 insertions, 0 deletions

diff --git a/contrib/libs/grpc/include/grpcpp/ext/call_metric_recorder.h b/contrib/libs/grpc/include/grpcpp/ext/call_metric_recorder.h
new file mode 100644
index 0000000000..91e25760f3
--- /dev/null
+++ b/contrib/libs/grpc/include/grpcpp/ext/call_metric_recorder.h
@@ -0,0 +1,95 @@
+/*
+ *
+ * Copyright 2022 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPCPP_EXT_CALL_METRIC_RECORDER_H
+#define GRPCPP_EXT_CALL_METRIC_RECORDER_H
+
+#include <memory>
+#include <util/generic/string.h>
+#include <util/string/cast.h>
+
+#include "y_absl/strings/string_view.h"
+#include "y_absl/types/optional.h"
+
+#include <grpcpp/impl/codegen/slice.h>
+#include <grpcpp/impl/codegen/sync.h>
+
+namespace grpc_core {
+class Arena;
+struct BackendMetricData;
+}  // namespace grpc_core
+
+namespace grpc {
+class ServerBuilder;
+
+namespace experimental {
+class OrcaServerInterceptor;
+
+// Registers the per-rpc orca load reporter into the \a ServerBuilder.
+// Once this is done, the server will automatically send the load metrics
+// after each RPC as they were reported. In order to report load metrics,
+// call the \a ServerContext::ExperimentalGetCallMetricRecorder() method to
+// retrieve the recorder for the current call.
+void EnableCallMetricRecording(ServerBuilder*);
+
+/// Records call metrics for the purpose of load balancing.
+/// During an RPC, call \a ServerContext::ExperimentalGetCallMetricRecorder()
+/// method to retrive the recorder for the current call.
+class CallMetricRecorder {
+ public:
+  explicit CallMetricRecorder(grpc_core::Arena* arena);
+  ~CallMetricRecorder();
+
+  /// Records a call metric measurement for CPU utilization.
+  /// Multiple calls to this method will override the stored value.
+  CallMetricRecorder& RecordCpuUtilizationMetric(double value);
+
+  /// Records a call metric measurement for memory utilization.
+  /// Multiple calls to this method will override the stored value.
+  CallMetricRecorder& RecordMemoryUtilizationMetric(double value);
+
+  /// Records a call metric measurement for utilization.
+  /// Multiple calls to this method with the same name will
+  /// override the corresponding stored value. The lifetime of the
+  /// name string needs to be longer than the lifetime of the RPC
+  /// itself, since it's going to be sent as trailers after the RPC
+  /// finishes. It is assumed the strings are common names that
+  /// are global constants.
+  CallMetricRecorder& RecordUtilizationMetric(string_ref name, double value);
+
+  /// Records a call metric measurement for request cost.
+  /// Multiple calls to this method with the same name will
+  /// override the corresponding stored value. The lifetime of the
+  /// name string needs to be longer than the lifetime of the RPC
+  /// itself, since it's going to be sent as trailers after the RPC
+  /// finishes. It is assumed the strings are common names that
+  /// are global constants.
+  CallMetricRecorder& RecordRequestCostMetric(string_ref name, double value);
+
+ private:
+  y_absl::optional<TString> CreateSerializedReport();
+
+  internal::Mutex mu_;
+  grpc_core::BackendMetricData* backend_metric_data_ Y_ABSL_GUARDED_BY(&mu_);
+  friend class experimental::OrcaServerInterceptor;
+};
+
+}  // namespace experimental
+}  // namespace grpc
+
+#endif  // GRPCPP_EXT_CALL_METRIC_RECORDER_H