100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
/*
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*
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* Copyright 2019 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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#include "src/cpp/server/external_connection_acceptor_impl.h"
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#include <memory>
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#include <utility>
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#include <grpc/support/log.h>
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#include <grpcpp/server_builder.h>
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#include <grpcpp/support/byte_buffer.h>
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#include <grpcpp/support/channel_arguments.h>
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namespace grpc {
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namespace internal {
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namespace {
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// The actual type to return to user. It co-owns the internal impl object with
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// the server.
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class AcceptorWrapper : public experimental::ExternalConnectionAcceptor {
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public:
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explicit AcceptorWrapper(std::shared_ptr<ExternalConnectionAcceptorImpl> impl)
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: impl_(std::move(impl)) {}
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void HandleNewConnection(NewConnectionParameters* p) override {
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impl_->HandleNewConnection(p);
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}
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private:
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std::shared_ptr<ExternalConnectionAcceptorImpl> impl_;
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};
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} // namespace
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ExternalConnectionAcceptorImpl::ExternalConnectionAcceptorImpl(
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const std::string& name,
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ServerBuilder::experimental_type::ExternalConnectionType type,
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std::shared_ptr<ServerCredentials> creds)
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: name_(name), creds_(std::move(creds)) {
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GPR_ASSERT(type ==
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ServerBuilder::experimental_type::ExternalConnectionType::FROM_FD);
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}
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std::unique_ptr<experimental::ExternalConnectionAcceptor>
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ExternalConnectionAcceptorImpl::GetAcceptor() {
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grpc_core::MutexLock lock(&mu_);
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GPR_ASSERT(!has_acceptor_);
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has_acceptor_ = true;
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return std::unique_ptr<experimental::ExternalConnectionAcceptor>(
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new AcceptorWrapper(shared_from_this()));
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}
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void ExternalConnectionAcceptorImpl::HandleNewConnection(
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experimental::ExternalConnectionAcceptor::NewConnectionParameters* p) {
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grpc_core::MutexLock lock(&mu_);
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if (shutdown_ || !started_) {
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// TODO(yangg) clean up.
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gpr_log(
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GPR_ERROR,
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"NOT handling external connection with fd %d, started %d, shutdown %d",
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p->fd, started_, shutdown_);
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return;
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}
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if (handler_) {
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handler_->Handle(p->listener_fd, p->fd, p->read_buffer.c_buffer());
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}
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}
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void ExternalConnectionAcceptorImpl::Shutdown() {
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grpc_core::MutexLock lock(&mu_);
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shutdown_ = true;
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}
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void ExternalConnectionAcceptorImpl::Start() {
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grpc_core::MutexLock lock(&mu_);
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GPR_ASSERT(!started_);
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GPR_ASSERT(has_acceptor_);
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GPR_ASSERT(!shutdown_);
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started_ = true;
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}
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void ExternalConnectionAcceptorImpl::SetToChannelArgs(ChannelArguments* args) {
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args->SetPointer(name_, &handler_);
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}
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} // namespace internal
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} // namespace grpc
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