1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
3 #ifndef RGW_ASIO_CLIENT_H
4 #define RGW_ASIO_CLIENT_H
6 #include <boost/asio/ip/tcp.hpp>
7 #include <beast/http/message.hpp>
8 #include <beast/http/message_parser.hpp>
9 #include <beast/core/flat_streambuf.hpp>
10 #include "include/assert.h"
12 #include "rgw_client_io.h"
17 /// streaming message body interface
18 struct streaming_body {
19 using value_type = boost::asio::mutable_buffer;
24 using mutable_buffers_type = boost::asio::mutable_buffers_1;
26 static const bool is_direct{true}; // reads directly into user buffer
28 template<bool isRequest, class Fields>
29 explicit reader(beast::http::message<isRequest, streaming_body, Fields>& m)
34 void init(uint64_t content_length) {}
37 mutable_buffers_type prepare(size_t n) {
38 n = std::min(n, boost::asio::buffer_size(buffer));
39 auto position = boost::asio::buffer_cast<char*>(buffer);
43 void commit(size_t n) {
49 using header_type = beast::http::fields;
50 using parser_type = beast::http::message_parser<true, streaming_body, header_type>;
52 class ClientIO : public io::RestfulClient,
53 public io::BuffererSink {
55 using tcp = boost::asio::ip::tcp;
58 beast::flat_streambuf& buffer; //< parse buffer
60 bool conn_keepalive{false};
61 bool conn_close{false};
64 rgw::io::StaticOutputBufferer<> txbuf;
66 size_t write_data(const char *buf, size_t len) override;
67 size_t read_data(char *buf, size_t max);
70 ClientIO(tcp::socket& socket, parser_type& parser,
71 beast::flat_streambuf& buffer);
74 bool get_conn_close() const { return conn_close; }
76 void init_env(CephContext *cct) override;
77 size_t complete_request() override;
78 void flush() override;
79 size_t send_status(int status, const char *status_name) override;
80 size_t send_100_continue() override;
81 size_t send_header(const boost::string_ref& name,
82 const boost::string_ref& value) override;
83 size_t send_content_length(uint64_t len) override;
84 size_t complete_header() override;
86 size_t recv_body(char* buf, size_t max) override {
87 return read_data(buf, max);
90 size_t send_body(const char* buf, size_t len) override {
91 return write_data(buf, len);
94 RGWEnv& get_env() noexcept override {
102 #endif // RGW_ASIO_CLIENT_H