feat grpc: update to grpc 1.53.1

update grpc to 1.53.1
update grpcio/py3 to 1.53.1

Added patches:
    22-grpc-code-output.patch - allow translation of grpc code to internal string type.
    23-max-thread-limitation.patch - to provide interface for settings of thread number limit, as
    grpc::DynamicThreadPool doesn't provide interface to limit thread number anymore.
    24-support_for-non-abort-grpc.patch - generate exception instead of application crash
    25-forkable-destruction-order.patch - correct forkable logic for TimerManager
    27-skip-child-post-fork-operations.patch - allow to skip child post fork operations to exclude UB (used for unified agent only)
    pr33495_fox_nested_fork.patch - fix issues with nested forks
    pr33582_fork_handler.patch - disable fork handler support  if it is not requested intentionally

1 files changed, 30 insertions, 51 deletions

diff --git a/contrib/libs/grpc/src/cpp/server/dynamic_thread_pool.h b/contrib/libs/grpc/src/cpp/server/dynamic_thread_pool.h
index 34de51a59c..30da5d1de5 100644
--- a/contrib/libs/grpc/src/cpp/server/dynamic_thread_pool.h
+++ b/contrib/libs/grpc/src/cpp/server/dynamic_thread_pool.h
@@ -1,66 +1,45 @@
-/*
- *
- * Copyright 2015 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 GRPC_INTERNAL_CPP_DYNAMIC_THREAD_POOL_H
-#define GRPC_INTERNAL_CPP_DYNAMIC_THREAD_POOL_H
+//
+//
+// Copyright 2015 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 GRPC_SRC_CPP_SERVER_DYNAMIC_THREAD_POOL_H
+#define GRPC_SRC_CPP_SERVER_DYNAMIC_THREAD_POOL_H
 
 #include <functional>
-#include <list>
-#include <queue>
+#include <memory>
+
+#include <grpc/event_engine/event_engine.h>
 
-#include "src/core/lib/gprpp/sync.h"
-#include "src/core/lib/gprpp/thd.h"
+#include "src/core/lib/event_engine/default_event_engine.h"
 #include "src/cpp/server/thread_pool_interface.h"
 
 namespace grpc {
 
 class DynamicThreadPool final : public ThreadPoolInterface {
  public:
-  explicit DynamicThreadPool(int reserve_threads);
-  ~DynamicThreadPool() override;
-
-  void Add(const std::function<void()>& callback) override;
+  void Add(const std::function<void()>& callback) override {
+    event_engine_->Run(callback);
+  }
 
  private:
-  class DynamicThread {
-   public:
-    explicit DynamicThread(DynamicThreadPool* pool);
-    ~DynamicThread();
-
-   private:
-    DynamicThreadPool* pool_;
-    grpc_core::Thread thd_;
-    void ThreadFunc();
-  };
-  grpc_core::Mutex mu_;
-  grpc_core::CondVar cv_;
-  grpc_core::CondVar shutdown_cv_;
-  bool shutdown_;
-  std::queue<std::function<void()>> callbacks_;
-  int reserve_threads_;
-  int nthreads_;
-  int threads_waiting_;
-  std::list<DynamicThread*> dead_threads_;
-
-  void ThreadFunc();
-  static void ReapThreads(std::list<DynamicThread*>* tlist);
+  std::shared_ptr<grpc_event_engine::experimental::EventEngine> event_engine_ =
+      grpc_event_engine::experimental::GetDefaultEventEngine();
 };
 
 }  // namespace grpc
 
-#endif  // GRPC_INTERNAL_CPP_DYNAMIC_THREAD_POOL_H
+#endif  // GRPC_SRC_CPP_SERVER_DYNAMIC_THREAD_POOL_H