Simplified distributed block storage with strong consistency, like in Ceph
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// Copyright (c) Vitaliy Filippov, 2019+
// License: VNPL-1.1 or GNU GPL-2.0+ (see for details)
#pragma once
#include <string>
#include <vector>
#include <map>
#include <functional>
#include "json11/json11.hpp"
#define WS_TEXT 1
#define WS_BINARY 2
#define WS_CLOSE 8
#define WS_PING 9
#define WS_PONG 10
class timerfd_manager_t;
struct http_options_t
int timeout;
bool want_streaming;
struct http_response_t
bool eof = false;
int error_code = 0;
int status_code = 0;
std::string status_line;
std::map<std::string, std::string> headers;
int ws_msg_type = -1;
std::string body;
struct http_co_t;
struct websocket_t
http_co_t *co;
void post_message(int type, const std::string & msg);
void close();
void parse_http_headers(std::string & res, http_response_t *parsed);
std::vector<std::string> getifaddr_list(bool include_v6 = false);
uint64_t stoull_full(const std::string & str, int base = 10);
std::string strtolower(const std::string & in);
void http_request(timerfd_manager_t *tfd, const std::string & host, const std::string & request,
const http_options_t & options, std::function<void(const http_response_t *response)> callback);
void http_request_json(timerfd_manager_t *tfd, const std::string & host, const std::string & request,
int timeout, std::function<void(std::string, json11::Json r)> callback);
websocket_t* open_websocket(timerfd_manager_t *tfd, const std::string & host, const std::string & path,
int timeout, std::function<void(const http_response_t *msg)> callback);