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- /*
- Copyright (c) 2020 Sogou, Inc.
- 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 __RPC_MESSAGE_SRPC_H__
- #define __RPC_MESSAGE_SRPC_H__
- #ifdef _WIN32
- #include <workflow/PlatformSocket.h>
- #else
- #include <arpa/inet.h>
- #endif
- #include <workflow/HttpMessage.h>
- #include "rpc_message.h"
- #include "rpc_basic.h"
- #include "rpc_thrift_idl.h"
- #include "rpc_buffer.h"
- namespace srpc
- {
- static constexpr int SRPC_HEADER_SIZE = 16;
- // define srpc protocol
- class SRPCMessage : public RPCMessage
- {
- public:
- SRPCMessage();
- virtual ~SRPCMessage();
- int encode(struct iovec vectors[], int max, size_t size_limit);
- int append(const void *buf, size_t *size, size_t size_limit);
- bool serialize_meta();
- bool deserialize_meta();
- int get_compress_type() const override;
- int get_data_type() const override;
- void set_compress_type(int type) override;
- void set_data_type(int type) override;
- void set_attachment_nocopy(const char *attachment, size_t len);
- bool get_attachment_nocopy(const char **attachment, size_t *len) const;
- bool set_meta_module_data(const RPCModuleData& data) override;
- bool get_meta_module_data(RPCModuleData& data) const override;
- public:
- using RPCMessage::serialize;
- using RPCMessage::deserialize;
- int serialize(const ProtobufIDLMessage *pb_msg) override;
- int deserialize(ProtobufIDLMessage *pb_msg) override;
- int serialize(const ThriftIDLMessage *thrift_msg) override;
- int deserialize(ThriftIDLMessage *thrift_msg) override;
- int compress() override;
- int decompress() override;
- public:
- RPCBuffer *get_buffer() const { return this->buf; }
- size_t get_message_len() const { return this->message_len; }
- void set_message_len(size_t len) { this->message_len = len; }
- protected:
- void init_meta();
- // "SRPC" + META_LEN + MESSAGE_LEN + RESERVED
- char header[SRPC_HEADER_SIZE];
- RPCBuffer *buf;
- char *meta_buf;
- size_t nreceived;
- size_t meta_len;
- size_t message_len;
- ProtobufIDLMessage *meta;
- };
- class SRPCRequest : public SRPCMessage
- {
- public:
- const std::string& get_service_name() const;
- const std::string& get_method_name() const;
- void set_service_name(const std::string& service_name);
- void set_method_name(const std::string& method_name);
- };
- class SRPCResponse : public SRPCMessage
- {
- public:
- int get_status_code() const;
- int get_error() const;
- const char *get_errmsg() const;
- void set_status_code(int code);
- void set_error(int error);
- };
- class SRPCStdRequest : public protocol::ProtocolMessage, public RPCRequest, public SRPCRequest
- {
- public:
- int encode(struct iovec vectors[], int max) override
- {
- return this->SRPCRequest::encode(vectors, max, this->size_limit);
- }
- int append(const void *buf, size_t *size) override
- {
- return this->SRPCRequest::append(buf, size, this->size_limit);
- }
- public:
- bool serialize_meta() override
- {
- return this->SRPCRequest::serialize_meta();
- }
- bool deserialize_meta() override
- {
- return this->SRPCRequest::deserialize_meta();
- }
- public:
- const std::string& get_service_name() const override
- {
- return this->SRPCRequest::get_service_name();
- }
- const std::string& get_method_name() const override
- {
- return this->SRPCRequest::get_method_name();
- }
- void set_service_name(const std::string& service_name) override
- {
- return this->SRPCRequest::set_service_name(service_name);
- }
- void set_method_name(const std::string& method_name) override
- {
- return this->SRPCRequest::set_method_name(method_name);
- }
- bool set_meta_module_data(const RPCModuleData& data) override
- {
- return this->SRPCMessage::set_meta_module_data(data);
- }
- bool get_meta_module_data(RPCModuleData& data) const override
- {
- return this->SRPCMessage::get_meta_module_data(data);
- }
- public:
- SRPCStdRequest() { this->size_limit = RPC_BODY_SIZE_LIMIT; }
- };
- class SRPCStdResponse : public protocol::ProtocolMessage, public RPCResponse, public SRPCResponse
- {
- public:
- int encode(struct iovec vectors[], int max) override
- {
- return this->SRPCResponse::encode(vectors, max, this->size_limit);
- }
- int append(const void *buf, size_t *size) override
- {
- return this->SRPCResponse::append(buf, size, this->size_limit);
- }
- public:
- bool serialize_meta() override
- {
- return this->SRPCResponse::serialize_meta();
- }
- bool deserialize_meta() override
- {
- return this->SRPCResponse::deserialize_meta();
- }
- public:
- int get_status_code() const override
- {
- return this->SRPCResponse::get_status_code();
- }
- int get_error() const override
- {
- return this->SRPCResponse::get_error();
- }
- const char *get_errmsg() const override
- {
- return this->SRPCResponse::get_errmsg();
- }
- void set_status_code(int code) override
- {
- return this->SRPCResponse::set_status_code(code);
- }
- void set_error(int error) override
- {
- return this->SRPCResponse::set_error(error);
- }
- bool set_meta_module_data(const RPCModuleData& data) override
- {
- return this->SRPCMessage::set_meta_module_data(data);
- }
- bool get_meta_module_data(RPCModuleData& data) const override
- {
- return this->SRPCMessage::get_meta_module_data(data);
- }
- public:
- SRPCStdResponse() { this->size_limit = RPC_BODY_SIZE_LIMIT; }
- };
- class SRPCHttpRequest : public protocol::HttpRequest, public RPCRequest, public SRPCRequest
- {
- public:
- bool serialize_meta() override;
- bool deserialize_meta() override;
- public:
- const std::string& get_service_name() const override
- {
- return this->SRPCRequest::get_service_name();
- }
- const std::string& get_method_name() const override
- {
- return this->SRPCRequest::get_method_name();
- }
- void set_service_name(const std::string& service_name) override
- {
- return this->SRPCRequest::set_service_name(service_name);
- }
- void set_method_name(const std::string& method_name) override
- {
- return this->SRPCRequest::set_method_name(method_name);
- }
- bool set_meta_module_data(const RPCModuleData& data) override;
- bool get_meta_module_data(RPCModuleData& data) const override;
- bool set_http_header(const std::string& name,
- const std::string& value) override;
- bool add_http_header(const std::string& name,
- const std::string& value) override;
- bool get_http_header(const std::string& name,
- std::string& value) const override;
- public:
- SRPCHttpRequest() { this->size_limit = RPC_BODY_SIZE_LIMIT; }
- };
- class SRPCHttpResponse : public protocol::HttpResponse, public RPCResponse, public SRPCResponse
- {
- public:
- bool serialize_meta() override;
- bool deserialize_meta() override;
- public:
- int get_status_code() const override
- {
- return this->SRPCResponse::get_status_code();
- }
- int get_error() const override
- {
- return this->SRPCResponse::get_error();
- }
- const char *get_errmsg() const override
- {
- return this->SRPCResponse::get_errmsg();
- }
- void set_status_code(int code) override
- {
- return this->SRPCResponse::set_status_code(code);
- }
- void set_error(int error) override
- {
- return this->SRPCResponse::set_error(error);
- }
- bool set_http_code(int code) override
- {
- return this->protocol::HttpResponse::set_status_code(std::to_string(code));
- }
- bool set_meta_module_data(const RPCModuleData& data) override;
- bool get_meta_module_data(RPCModuleData& data) const override;
- bool set_http_header(const std::string& name,
- const std::string& value) override;
- bool add_http_header(const std::string& name,
- const std::string& value) override;
- bool get_http_header(const std::string& name,
- std::string& value) const override;
- public:
- SRPCHttpResponse() { this->size_limit = RPC_BODY_SIZE_LIMIT; }
- };
- ////////
- // inl
- inline SRPCMessage::~SRPCMessage()
- {
- delete []this->meta_buf;
- delete this->meta;
- delete this->buf;
- }
- inline int SRPCMessage::encode(struct iovec vectors[], int max, size_t size_limit)
- {
- if (this->message_len > 0x7FFFFFFF)
- {
- errno = EOVERFLOW;
- return -1;
- }
- char *p = this->header;
- memcpy(p, "SRPC", 4);
- p += 4;
- *(uint32_t *)(p) = htonl((uint32_t)this->meta_len);
- p += 4;
- *(uint32_t *)(p) = htonl((uint32_t)this->message_len);
- vectors[0].iov_base = this->header;
- vectors[0].iov_len = SRPC_HEADER_SIZE;
- vectors[1].iov_base = this->meta_buf;
- vectors[1].iov_len = this->meta_len;
- int ret = this->buf->encode(vectors + 2, max - 2);
- return ret < 0 ? ret : ret + 2;
- }
- inline bool SRPCMessage::serialize_meta()
- {
- this->meta_len = this->meta->ByteSizeLong();
- this->meta_buf = new char[this->meta_len];
- return this->meta->SerializeToArray(this->meta_buf, (int)this->meta_len);
- }
- inline bool SRPCMessage::deserialize_meta()
- {
- return this->meta->ParseFromArray(this->meta_buf, (int)this->meta_len);
- }
- } // namespace srpc
- #endif
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