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103 lines
3.6 KiB
103 lines
3.6 KiB
/* |
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* |
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* Copyright 2018 gRPC authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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#ifndef GRPCPP_IMPL_CODEGEN_CALLBACK_COMMON_H |
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#define GRPCPP_IMPL_CODEGEN_CALLBACK_COMMON_H |
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#include <functional> |
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#include <grpcpp/impl/codegen/call.h> |
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#include <grpcpp/impl/codegen/channel_interface.h> |
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#include <grpcpp/impl/codegen/config.h> |
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#include <grpcpp/impl/codegen/core_codegen_interface.h> |
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#include <grpcpp/impl/codegen/status.h> |
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// Forward declarations |
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namespace grpc_core { |
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class CQCallbackInterface; |
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}; |
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namespace grpc { |
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namespace internal { |
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class CallbackWithStatusTag { |
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public: |
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// always allocated against a call arena, no memory free required |
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static void operator delete(void* ptr, std::size_t size) { |
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assert(size == sizeof(CallbackWithStatusTag)); |
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} |
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// This operator should never be called as the memory should be freed as part |
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// of the arena destruction. It only exists to provide a matching operator |
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// delete to the operator new so that some compilers will not complain (see |
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// https://github.com/grpc/grpc/issues/11301) Note at the time of adding this |
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// there are no tests catching the compiler warning. |
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static void operator delete(void*, void*) { assert(0); } |
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CallbackWithStatusTag(grpc_call* call, std::function<void(Status)> f, |
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CompletionQueueTag* ops); |
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~CallbackWithStatusTag() {} |
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void* tag() { return static_cast<void*>(impl_); } |
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Status* status_ptr() { return status_; } |
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CompletionQueueTag* ops() { return ops_; } |
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// force_run can not be performed on a tag if operations using this tag |
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// have been sent to PerformOpsOnCall. It is intended for error conditions |
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// that are detected before the operations are internally processed. |
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void force_run(Status s); |
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private: |
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grpc_core::CQCallbackInterface* impl_; |
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Status* status_; |
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CompletionQueueTag* ops_; |
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}; |
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class CallbackWithSuccessTag { |
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public: |
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// always allocated against a call arena, no memory free required |
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static void operator delete(void* ptr, std::size_t size) { |
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assert(size == sizeof(CallbackWithSuccessTag)); |
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} |
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// This operator should never be called as the memory should be freed as part |
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// of the arena destruction. It only exists to provide a matching operator |
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// delete to the operator new so that some compilers will not complain (see |
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// https://github.com/grpc/grpc/issues/11301) Note at the time of adding this |
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// there are no tests catching the compiler warning. |
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static void operator delete(void*, void*) { assert(0); } |
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CallbackWithSuccessTag(grpc_call* call, std::function<void(bool)> f, |
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CompletionQueueTag* ops); |
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void* tag() { return static_cast<void*>(impl_); } |
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CompletionQueueTag* ops() { return ops_; } |
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// force_run can not be performed on a tag if operations using this tag |
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// have been sent to PerformOpsOnCall. It is intended for error conditions |
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// that are detected before the operations are internally processed. |
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void force_run(bool ok); |
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private: |
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grpc_core::CQCallbackInterface* impl_; |
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CompletionQueueTag* ops_; |
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}; |
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} // namespace internal |
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} // namespace grpc |
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#endif // GRPCPP_IMPL_CODEGEN_CALLBACK_COMMON_H
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