| // |
| // Copyright 2016 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_SRC_CORE_EXT_FILTERS_MESSAGE_SIZE_MESSAGE_SIZE_FILTER_H |
| #define GRPC_SRC_CORE_EXT_FILTERS_MESSAGE_SIZE_MESSAGE_SIZE_FILTER_H |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "absl/strings/string_view.h" |
| #include "absl/types/optional.h" |
| |
| #include "src/core/lib/channel/channel_args.h" |
| #include "src/core/lib/channel/channel_fwd.h" |
| #include "src/core/lib/channel/channel_stack.h" |
| #include "src/core/lib/channel/context.h" |
| #include "src/core/lib/config/core_configuration.h" |
| #include "src/core/lib/gprpp/validation_errors.h" |
| #include "src/core/lib/json/json.h" |
| #include "src/core/lib/json/json_args.h" |
| #include "src/core/lib/json/json_object_loader.h" |
| #include "src/core/lib/service_config/service_config_parser.h" |
| |
| extern const grpc_channel_filter grpc_message_size_filter; |
| |
| namespace grpc_core { |
| |
| class MessageSizeParsedConfig : public ServiceConfigParser::ParsedConfig { |
| public: |
| absl::optional<uint32_t> max_send_size() const { return max_send_size_; } |
| absl::optional<uint32_t> max_recv_size() const { return max_recv_size_; } |
| |
| MessageSizeParsedConfig() = default; |
| |
| MessageSizeParsedConfig(absl::optional<uint32_t> max_send_size, |
| absl::optional<uint32_t> max_recv_size) |
| : max_send_size_(max_send_size), max_recv_size_(max_recv_size) {} |
| |
| static const MessageSizeParsedConfig* GetFromCallContext( |
| const grpc_call_context_element* context, |
| size_t service_config_parser_index); |
| |
| static MessageSizeParsedConfig GetFromChannelArgs(const ChannelArgs& args); |
| |
| static const JsonLoaderInterface* JsonLoader(const JsonArgs&); |
| |
| private: |
| absl::optional<uint32_t> max_send_size_; |
| absl::optional<uint32_t> max_recv_size_; |
| }; |
| |
| class MessageSizeParser : public ServiceConfigParser::Parser { |
| public: |
| absl::string_view name() const override { return parser_name(); } |
| |
| std::unique_ptr<ServiceConfigParser::ParsedConfig> ParsePerMethodParams( |
| const ChannelArgs& /*args*/, const Json& json, |
| ValidationErrors* errors) override; |
| |
| static void Register(CoreConfiguration::Builder* builder); |
| |
| static size_t ParserIndex(); |
| |
| private: |
| static absl::string_view parser_name() { return "message_size"; } |
| }; |
| |
| absl::optional<uint32_t> GetMaxRecvSizeFromChannelArgs(const ChannelArgs& args); |
| absl::optional<uint32_t> GetMaxSendSizeFromChannelArgs(const ChannelArgs& args); |
| |
| } // namespace grpc_core |
| |
| #endif // GRPC_SRC_CORE_EXT_FILTERS_MESSAGE_SIZE_MESSAGE_SIZE_FILTER_H |