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feat: Add register_callback_rpc_handler and ServerRPCPtr
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| // Copyright 2023 Dennis Hezel | ||
| // | ||
| // 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. | ||
|
|
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| #ifndef AGRPC_DETAIL_REGISTER_CALLBACK_RPC_HANDLER_HPP | ||
| #define AGRPC_DETAIL_REGISTER_CALLBACK_RPC_HANDLER_HPP | ||
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| #include <agrpc/bind_allocator.hpp> | ||
| #include <agrpc/detail/config.hpp> | ||
| #include <agrpc/detail/register_rpc_handler_asio_base.hpp> | ||
| #include <agrpc/detail/server_rpc_with_request.hpp> | ||
| #include <agrpc/grpc_context.hpp> | ||
| #include <agrpc/server_rpc_ptr.hpp> | ||
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| AGRPC_NAMESPACE_BEGIN() | ||
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| namespace detail | ||
| { | ||
| template <class ServerRPC, class RPCHandler, class CompletionHandler> | ||
| struct RegisterCallbackRPCHandlerOperation | ||
| : detail::RegisterRPCHandlerOperationAsioBase<ServerRPC, RPCHandler, CompletionHandler> | ||
| { | ||
| using Base = detail::RegisterRPCHandlerOperationAsioBase<ServerRPC, RPCHandler, CompletionHandler>; | ||
| using typename Base::Allocator; | ||
| using typename Base::RefCountGuard; | ||
| using typename Base::RPCRequest; | ||
| using typename Base::ServerRPCExecutor; | ||
| using typename Base::Service; | ||
| using ServerRPCWithRequest = ServerRPCWithRequest<ServerRPC>; | ||
|
Check failure on line 39 in src/agrpc/detail/register_callback_rpc_handler.hpp
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| using ServerRPCPtr = agrpc::ServerRPCPtr<ServerRPC>; | ||
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| struct ServerRPCAllocation : ServerRPCWithRequest | ||
| { | ||
| ServerRPCAllocation(const ServerRPCExecutor& executor, RegisterCallbackRPCHandlerOperation& self) | ||
| : ServerRPCWithRequest(executor), self_(self) | ||
| { | ||
| } | ||
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| RegisterCallbackRPCHandlerOperation& self_; | ||
| }; | ||
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| static void wait_for_done_deleter(ServerRPCWithRequest* ptr) noexcept | ||
| { | ||
| auto& self = *static_cast<ServerRPCAllocation*>(ptr); | ||
| [[maybe_unused]] RefCountGuard a{self.self_}; | ||
| [[maybe_unused]] detail::AllocationGuard b{&self, self.self_.get_allocator()}; | ||
| } | ||
|
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| static void deleter(ServerRPCWithRequest* ptr) noexcept | ||
| { | ||
| auto& self = *static_cast<ServerRPCAllocation*>(ptr); | ||
| RefCountGuard guard{self.self_}; | ||
| detail::AllocationGuard alloc_guard{&self, self.self_.get_allocator()}; | ||
| auto& rpc = ptr->rpc_; | ||
| if (!detail::ServerRPCContextBaseAccess::is_finished(rpc)) | ||
| { | ||
| rpc.cancel(); | ||
| } | ||
| if constexpr (ServerRPC::Traits::NOTIFY_WHEN_DONE) | ||
| { | ||
| if (!rpc.is_done()) | ||
| { | ||
| rpc.wait_for_done([ptr = ServerRPCPtr{ptr, &wait_for_done_deleter}](const detail::ErrorCode&) {}); | ||
| guard.release(); | ||
| alloc_guard.release(); | ||
| } | ||
| } | ||
| } | ||
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| template <class Ch> | ||
| RegisterCallbackRPCHandlerOperation(const ServerRPCExecutor& executor, Service& service, RPCHandler&& rpc_handler, | ||
| Ch&& completion_handler) | ||
| : Base(executor, service, static_cast<RPCHandler&&>(rpc_handler), static_cast<Ch&&>(completion_handler), | ||
| &detail::register_rpc_handler_asio_do_complete<RegisterCallbackRPCHandlerOperation>) | ||
| { | ||
| initiate(); | ||
| } | ||
|
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| void initiate() | ||
| { | ||
| auto ptr = detail::allocate<ServerRPCAllocation>(this->get_allocator(), this->get_executor(), *this); | ||
| this->increment_ref_count(); | ||
| perform_request_and_repeat({ptr.release(), &deleter}); | ||
| } | ||
|
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| void initiate_next() | ||
| { | ||
| if AGRPC_LIKELY (!this->is_stopped()) | ||
| { | ||
| initiate(); | ||
| } | ||
| } | ||
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| void perform_request_and_repeat(ServerRPCPtr&& ptr) | ||
| { | ||
| auto& rpc = *ptr.server_rpc_; | ||
| rpc.start(rpc.rpc_, this->service(), | ||
| bind_allocator( | ||
| [this, ptr = static_cast<ServerRPCPtr&&>(ptr)](bool ok) mutable | ||
| { | ||
| if (ok) | ||
| { | ||
| initiate_next(); | ||
| AGRPC_TRY | ||
| { | ||
| ptr.server_rpc_->invoke(this->rpc_handler(), static_cast<ServerRPCPtr&&>(ptr)); | ||
| } | ||
| AGRPC_CATCH(...) | ||
| { | ||
| // Technically `this` could already be deallocated at this point but we rely on the | ||
| // fact that completing this operation is done in a manner similar to asio::post and | ||
| // therefore never before this lambda ends. | ||
| this->set_error(std::current_exception()); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| [[maybe_unused]] RefCountGuard a{*this}; | ||
| [[maybe_unused]] detail::AllocationGuard b{ | ||
| static_cast<ServerRPCAllocation*>(ptr.release()), this->get_allocator()}; | ||
| } | ||
| })); | ||
| } | ||
|
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| template <class Function> | ||
| decltype(auto) bind_allocator(Function&& function) | ||
| { | ||
| if constexpr (detail::IS_STD_ALLOCATOR<Allocator>) | ||
| { | ||
| return static_cast<Function&&>(function); | ||
| } | ||
| else | ||
| { | ||
| return agrpc::AllocatorBinder(this->get_allocator(), static_cast<Function&&>(function)); | ||
| } | ||
| } | ||
| }; | ||
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| template <class ServerRPC> | ||
| using RegisterCallbackRPCHandlerInitiator = | ||
| detail::RegisterRPCHandlerInitiator<ServerRPC, RegisterCallbackRPCHandlerOperation>; | ||
| } | ||
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| AGRPC_NAMESPACE_END | ||
|
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| #endif // AGRPC_DETAIL_REGISTER_CALLBACK_RPC_HANDLER_HPP | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| // Copyright 2023 Dennis Hezel | ||
| // | ||
| // 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. | ||
|
|
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| #ifndef AGRPC_DETAIL_SERVER_RPC_WITH_REQUEST_HPP | ||
| #define AGRPC_DETAIL_SERVER_RPC_WITH_REQUEST_HPP | ||
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| #include <agrpc/detail/rpc_request.hpp> | ||
| #include <agrpc/detail/server_rpc_context_base.hpp> | ||
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| AGRPC_NAMESPACE_BEGIN() | ||
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| namespace detail | ||
| { | ||
| template <class ServerRPC> | ||
| struct ServerRPCWithRequest | ||
|
Check failure on line 26 in src/agrpc/detail/server_rpc_with_request.hpp
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| : detail::RPCRequest<typename ServerRPC::Request, detail::has_initial_request(ServerRPC::TYPE)> | ||
| { | ||
| ServerRPCWithRequest(const typename ServerRPC::executor_type& executor) | ||
| : rpc_(detail::ServerRPCContextBaseAccess::construct<ServerRPC>(executor)) | ||
| { | ||
| } | ||
|
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| ServerRPC rpc_; | ||
| }; | ||
| } | ||
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| AGRPC_NAMESPACE_END | ||
|
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| #endif // AGRPC_DETAIL_SERVER_RPC_WITH_REQUEST_HPP | ||
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