Ed Tanous | fca2cbe | 2021-01-28 14:49:59 -0800 | [diff] [blame^] | 1 | #pragma once |
| 2 | |
| 3 | extern "C" |
| 4 | { |
| 5 | #include <nghttp2/nghttp2.h> |
| 6 | } |
| 7 | |
| 8 | #include "logging.hpp" |
| 9 | |
| 10 | #include <span> |
| 11 | |
| 12 | /* This file contains RAII compatible adapters for nghttp2 structures. They |
| 13 | * attempt to be as close to a direct call as possible, while keeping the RAII |
| 14 | * lifetime safety for the various classes.*/ |
| 15 | |
| 16 | struct nghttp2_session; |
| 17 | |
| 18 | struct nghttp2_session_callbacks |
| 19 | { |
| 20 | friend nghttp2_session; |
| 21 | nghttp2_session_callbacks() |
| 22 | { |
| 23 | nghttp2_session_callbacks_new(&ptr); |
| 24 | } |
| 25 | |
| 26 | ~nghttp2_session_callbacks() |
| 27 | { |
| 28 | nghttp2_session_callbacks_del(ptr); |
| 29 | } |
| 30 | |
| 31 | nghttp2_session_callbacks(const nghttp2_session_callbacks&) = delete; |
| 32 | nghttp2_session_callbacks& |
| 33 | operator=(const nghttp2_session_callbacks&) = delete; |
| 34 | nghttp2_session_callbacks(nghttp2_session_callbacks&&) = delete; |
| 35 | nghttp2_session_callbacks& operator=(nghttp2_session_callbacks&&) = delete; |
| 36 | |
| 37 | void setSendCallback(nghttp2_send_callback sendCallback) |
| 38 | { |
| 39 | nghttp2_session_callbacks_set_send_callback(ptr, sendCallback); |
| 40 | } |
| 41 | |
| 42 | void setOnFrameRecvCallback(nghttp2_on_frame_recv_callback recvCallback) |
| 43 | { |
| 44 | nghttp2_session_callbacks_set_on_frame_recv_callback(ptr, recvCallback); |
| 45 | } |
| 46 | |
| 47 | void setOnStreamCloseCallback(nghttp2_on_stream_close_callback onClose) |
| 48 | { |
| 49 | nghttp2_session_callbacks_set_on_stream_close_callback(ptr, onClose); |
| 50 | } |
| 51 | |
| 52 | void setOnHeaderCallback(nghttp2_on_header_callback onHeader) |
| 53 | { |
| 54 | nghttp2_session_callbacks_set_on_header_callback(ptr, onHeader); |
| 55 | } |
| 56 | |
| 57 | void setOnBeginHeadersCallback( |
| 58 | nghttp2_on_begin_headers_callback onBeginHeaders) |
| 59 | { |
| 60 | nghttp2_session_callbacks_set_on_begin_headers_callback(ptr, |
| 61 | onBeginHeaders); |
| 62 | } |
| 63 | |
| 64 | void setSendDataCallback(nghttp2_send_data_callback onSendData) |
| 65 | { |
| 66 | nghttp2_session_callbacks_set_send_data_callback(ptr, onSendData); |
| 67 | } |
| 68 | void setBeforeFrameSendCallback( |
| 69 | nghttp2_before_frame_send_callback beforeSendFrame) |
| 70 | { |
| 71 | nghttp2_session_callbacks_set_before_frame_send_callback( |
| 72 | ptr, beforeSendFrame); |
| 73 | } |
| 74 | void |
| 75 | setAfterFrameSendCallback(nghttp2_on_frame_send_callback afterSendFrame) |
| 76 | { |
| 77 | nghttp2_session_callbacks_set_on_frame_send_callback(ptr, |
| 78 | afterSendFrame); |
| 79 | } |
| 80 | void setAfterFrameNoSendCallback( |
| 81 | nghttp2_on_frame_not_send_callback afterSendFrame) |
| 82 | { |
| 83 | nghttp2_session_callbacks_set_on_frame_not_send_callback( |
| 84 | ptr, afterSendFrame); |
| 85 | } |
| 86 | |
| 87 | private: |
| 88 | nghttp2_session_callbacks* get() |
| 89 | { |
| 90 | return ptr; |
| 91 | } |
| 92 | |
| 93 | nghttp2_session_callbacks* ptr = nullptr; |
| 94 | }; |
| 95 | |
| 96 | struct nghttp2_session |
| 97 | { |
| 98 | explicit nghttp2_session(nghttp2_session_callbacks& callbacks) |
| 99 | { |
| 100 | if (nghttp2_session_server_new(&ptr, callbacks.get(), nullptr) != 0) |
| 101 | { |
| 102 | BMCWEB_LOG_ERROR << "nghttp2_session_server_new failed"; |
| 103 | return; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | ~nghttp2_session() |
| 108 | { |
| 109 | nghttp2_session_del(ptr); |
| 110 | } |
| 111 | |
| 112 | // explicitly uncopyable |
| 113 | nghttp2_session(const nghttp2_session&) = delete; |
| 114 | nghttp2_session& operator=(const nghttp2_session&) = delete; |
| 115 | |
| 116 | nghttp2_session(nghttp2_session&& other) noexcept : ptr(other.ptr) |
| 117 | { |
| 118 | other.ptr = nullptr; |
| 119 | } |
| 120 | |
| 121 | nghttp2_session& operator=(nghttp2_session&& other) noexcept = delete; |
| 122 | |
| 123 | int submitSettings(std::span<nghttp2_settings_entry> iv) |
| 124 | { |
| 125 | return nghttp2_submit_settings(ptr, NGHTTP2_FLAG_NONE, iv.data(), |
| 126 | iv.size()); |
| 127 | } |
| 128 | void setUserData(void* object) |
| 129 | { |
| 130 | nghttp2_session_set_user_data(ptr, object); |
| 131 | } |
| 132 | |
| 133 | ssize_t memRecv(std::span<const uint8_t> buffer) |
| 134 | { |
| 135 | return nghttp2_session_mem_recv(ptr, buffer.data(), buffer.size()); |
| 136 | } |
| 137 | |
| 138 | ssize_t send() |
| 139 | { |
| 140 | return nghttp2_session_send(ptr); |
| 141 | } |
| 142 | |
| 143 | int submitResponse(int32_t streamId, std::span<const nghttp2_nv> headers, |
| 144 | const nghttp2_data_provider* dataPrd) |
| 145 | { |
| 146 | return nghttp2_submit_response(ptr, streamId, headers.data(), |
| 147 | headers.size(), dataPrd); |
| 148 | } |
| 149 | |
| 150 | private: |
| 151 | nghttp2_session* ptr = nullptr; |
| 152 | }; |