pioneer/src/ServerAgent.h

125 lines
3.0 KiB
C++

// Copyright © 2008-2021 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
#ifdef ENABLE_SERVER_AGENT
#ifndef SERVERAGENT_H
#define SERVERAGENT_H
#include "libs.h"
#include <curl/curl.h>
#include <json/json.h>
#include <map>
#include <queue>
class ServerAgent {
public:
virtual ~ServerAgent() {}
typedef sigc::slot<void, const Json &, void *> SuccessCallback;
typedef sigc::slot<void, const std::string &, void *> FailCallback;
virtual void Call(const std::string &method, const Json &data, SuccessCallback onSuccess, FailCallback onFail, void *userdata) = 0;
virtual void ProcessResponses() = 0;
protected:
static void IgnoreSuccessCallback(const Json &data) {}
static void IgnoreFailCallback(const std::string &error) {}
};
class NullServerAgent : public ServerAgent {
public:
virtual void Call(const std::string &method, const Json &data, ServerAgent::SuccessCallback onSuccess = sigc::ptr_fun(&ServerAgent::IgnoreSuccessCallback), ServerAgent::FailCallback onFail = sigc::ptr_fun(&ServerAgent::IgnoreFailCallback), void *userdata = 0);
virtual void ProcessResponses();
private:
struct Response {
Response(FailCallback _onFail, void *_userdata) :
onFail(_onFail),
userdata(_userdata)
{}
FailCallback onFail;
void *userdata;
};
std::queue<Response> m_queue;
};
class HTTPServerAgent : public ServerAgent {
public:
HTTPServerAgent(const std::string &endpoint);
virtual ~HTTPServerAgent();
virtual void Call(const std::string &method, const Json &data, SuccessCallback onSuccess = sigc::ptr_fun(&ServerAgent::IgnoreSuccessCallback), FailCallback onFail = sigc::ptr_fun(&ServerAgent::IgnoreFailCallback), void *userdata = 0);
virtual void ProcessResponses();
private:
struct Request {
Request(const std::string &_method, const Json &_data, SuccessCallback _onSuccess, FailCallback _onFail, void *_userdata) :
method(_method),
data(_data),
onSuccess(_onSuccess),
onFail(_onFail),
userdata(_userdata) {}
const std::string method;
const Json data;
std::string buffer;
SuccessCallback onSuccess;
FailCallback onFail;
void *userdata;
};
struct Response {
Response(SuccessCallback _onSuccess, FailCallback _onFail, void *_userdata) :
success(false),
onSuccess(_onSuccess),
onFail(_onFail),
userdata(_userdata) {}
bool success;
std::string buffer;
SuccessCallback onSuccess;
Json data;
FailCallback onFail;
void *userdata;
};
static int ThreadEntry(void *data);
void ThreadMain();
static const std::string &UserAgent();
static size_t FillRequestBuffer(char *ptr, size_t size, size_t nmemb, void *userdata);
static size_t FillResponseBuffer(char *ptr, size_t size, size_t nmemb, void *userdata);
static bool s_initialised;
const std::string m_endpoint;
SDL_Thread *m_thread;
CURL *m_curl;
curl_slist *m_curlHeaders;
std::queue<Request> m_requestQueue;
SDL_mutex *m_requestQueueLock;
SDL_cond *m_requestQueueCond;
std::queue<Response> m_responseQueue;
SDL_mutex *m_responseQueueLock;
};
#endif
#endif // ENABLE_SERVER_AGENT