1 // Copyright 2023 gRPC authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include <grpc/support/port_platform.h> 16 17 #include "src/core/ext/transport/chttp2/transport/max_concurrent_streams_policy.h" 18 19 #include <utility> 20 21 #include <grpc/support/log.h> 22 23 namespace grpc_core { 24 AddDemerit()25void Chttp2MaxConcurrentStreamsPolicy::AddDemerit() { 26 ++new_demerits_; 27 ++unacked_demerits_; 28 } 29 FlushedSettings()30void Chttp2MaxConcurrentStreamsPolicy::FlushedSettings() { 31 sent_demerits_ += std::exchange(new_demerits_, 0); 32 } 33 AckLastSend()34void Chttp2MaxConcurrentStreamsPolicy::AckLastSend() { 35 GPR_ASSERT(unacked_demerits_ >= sent_demerits_); 36 unacked_demerits_ -= std::exchange(sent_demerits_, 0); 37 } 38 AdvertiseValue() const39uint32_t Chttp2MaxConcurrentStreamsPolicy::AdvertiseValue() const { 40 if (target_ < unacked_demerits_) return 0; 41 return target_ - unacked_demerits_; 42 } 43 44 } // namespace grpc_core 45