--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+#ifndef RGW_ASIO_CLIENT_H
+#define RGW_ASIO_CLIENT_H
+
+#include <boost/asio/ip/tcp.hpp>
+#include <beast/http/message.hpp>
+#include <beast/http/message_parser.hpp>
+#include <beast/core/flat_streambuf.hpp>
+#include "include/assert.h"
+
+#include "rgw_client_io.h"
+
+namespace rgw {
+namespace asio {
+
+/// streaming message body interface
+struct streaming_body {
+ using value_type = boost::asio::mutable_buffer;
+
+ class reader {
+ value_type& buffer;
+ public:
+ using mutable_buffers_type = boost::asio::mutable_buffers_1;
+
+ static const bool is_direct{true}; // reads directly into user buffer
+
+ template<bool isRequest, class Fields>
+ explicit reader(beast::http::message<isRequest, streaming_body, Fields>& m)
+ : buffer(m.body)
+ {}
+
+ void init() {}
+ void init(uint64_t content_length) {}
+ void finish() {}
+
+ mutable_buffers_type prepare(size_t n) {
+ n = std::min(n, boost::asio::buffer_size(buffer));
+ auto position = boost::asio::buffer_cast<char*>(buffer);
+ return {position, n};
+ }
+
+ void commit(size_t n) {
+ buffer = buffer + n;
+ }
+ };
+};
+
+using header_type = beast::http::fields;
+using parser_type = beast::http::message_parser<true, streaming_body, header_type>;
+
+class ClientIO : public io::RestfulClient,
+ public io::BuffererSink {
+ private:
+ using tcp = boost::asio::ip::tcp;
+ tcp::socket& socket;
+ parser_type& parser;
+ beast::flat_streambuf& buffer; //< parse buffer
+
+ bool conn_keepalive{false};
+ bool conn_close{false};
+ RGWEnv env;
+
+ rgw::io::StaticOutputBufferer<> txbuf;
+
+ size_t write_data(const char *buf, size_t len) override;
+ size_t read_data(char *buf, size_t max);
+
+ public:
+ ClientIO(tcp::socket& socket, parser_type& parser,
+ beast::flat_streambuf& buffer);
+ ~ClientIO() override;
+
+ bool get_conn_close() const { return conn_close; }
+
+ void init_env(CephContext *cct) override;
+ size_t complete_request() override;
+ void flush() override;
+ size_t send_status(int status, const char *status_name) override;
+ size_t send_100_continue() override;
+ size_t send_header(const boost::string_ref& name,
+ const boost::string_ref& value) override;
+ size_t send_content_length(uint64_t len) override;
+ size_t complete_header() override;
+
+ size_t recv_body(char* buf, size_t max) override {
+ return read_data(buf, max);
+ }
+
+ size_t send_body(const char* buf, size_t len) override {
+ return write_data(buf, len);
+ }
+
+ RGWEnv& get_env() noexcept override {
+ return env;
+ }
+};
+
+} // namespace asio
+} // namespace rgw
+
+#endif // RGW_ASIO_CLIENT_H