/usr/share/cagefs-skeleton/usr/include/grpc/event_engine/internal
// Copyright 2021 The 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_EVENT_ENGINE_INTERNAL_MEMORY_ALLOCATOR_IMPL_H #define GRPC_EVENT_ENGINE_INTERNAL_MEMORY_ALLOCATOR_IMPL_H #include <grpc/impl/codegen/port_platform.h> #include <algorithm> #include <memory> #include <type_traits> #include <vector> #include <grpc/event_engine/memory_request.h> #include <grpc/slice.h> namespace grpc_event_engine { namespace experimental { namespace internal { /// Underlying memory allocation interface. /// This is an internal interface, not intended to be used by users. /// Its interface is subject to change at any time. class MemoryAllocatorImpl : public std::enable_shared_from_this<MemoryAllocatorImpl> { public: MemoryAllocatorImpl() {} virtual ~MemoryAllocatorImpl() {} MemoryAllocatorImpl(const MemoryAllocatorImpl&) = delete; MemoryAllocatorImpl& operator=(const MemoryAllocatorImpl&) = delete; /// Reserve bytes from the quota. /// If we enter overcommit, reclamation will begin concurrently. /// Returns the number of bytes reserved. /// If MemoryRequest is invalid, this function will abort. /// If MemoryRequest is valid, this function is infallible, and will always /// succeed at reserving the some number of bytes between request.min() and /// request.max() inclusively. virtual size_t Reserve(MemoryRequest request) = 0; /// Release some bytes that were previously reserved. /// If more bytes are released than were reserved, we will have undefined /// behavior. virtual void Release(size_t n) = 0; /// Shutdown this allocator. /// Further usage of Reserve() is undefined behavior. virtual void Shutdown() = 0; }; } // namespace internal } // namespace experimental } // namespace grpc_event_engine #endif // GRPC_EVENT_ENGINE_INTERNAL_MEMORY_ALLOCATOR_IMPL_H
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memory_allocator_impl.h
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