UDPConnection/cpp_impl/src/UDPC_Defines.hpp

297 lines
8.5 KiB
C++

// vim: foldmethod=marker
#ifndef UDPC_DEFINES_HPP
#define UDPC_DEFINES_HPP
#define UDPC_CONTEXT_IDENTIFIER 0x902F4DB3
#define UDPC_SENT_PKTS_MAX_SIZE 33
#define UDPC_QUEUED_PKTS_MAX_SIZE 32
#define UDPC_RECEIVED_PKTS_MAX_SIZE 50
#define UDPC_ID_CONNECT 0x80000000
#define UDPC_ID_PING 0x40000000
#define UDPC_ID_NO_REC_CHK 0x20000000
#define UDPC_ID_RESENDING 0x10000000
#define UDPC_ATOSTR_BUFCOUNT 32
#define UDPC_ATOSTR_BUFSIZE 40
#define UDPC_ATOSTR_SIZE (UDPC_ATOSTR_BUFCOUNT * UDPC_ATOSTR_BUFSIZE)
#include <atomic>
#include <bitset>
#include <chrono>
#include <cstdint>
#include <deque>
#include <unordered_map>
#include <unordered_set>
#include <queue>
#include <random>
#include <memory>
#include <thread>
#include <mutex>
#include <iostream>
#include "TSQueue.hpp"
#include "UDPConnection.h"
namespace UDPC {
static const auto ONE_SECOND = std::chrono::seconds(1);
static const auto TEN_SECONDS = std::chrono::seconds(10);
static const auto THIRTY_SECONDS = std::chrono::seconds(30);
static const auto INIT_PKT_INTERVAL_DT = std::chrono::seconds(5);
static const auto HEARTBEAT_PKT_INTERVAL_DT = std::chrono::milliseconds(150);
static const auto PACKET_TIMEOUT_TIME = ONE_SECOND;
static const auto GOOD_RTT_LIMIT = std::chrono::milliseconds(250);
static const auto CONNECTION_TIMEOUT = TEN_SECONDS;
static const auto GOOD_MODE_SEND_RATE = std::chrono::microseconds(33333);
static const auto BAD_MODE_SEND_RATE = std::chrono::milliseconds(100);
// forward declaration
struct Context;
struct SentPktInfo {
typedef std::shared_ptr<SentPktInfo> Ptr;
SentPktInfo();
uint32_t id;
std::chrono::steady_clock::time_point sentTime;
};
struct ConnectionIdHasher {
std::size_t operator()(const UDPC_ConnectionId& key) const;
};
struct IPV6_Hasher {
std::size_t operator()(const struct in6_addr& addr) const;
};
struct ConnectionData {
ConnectionData();
ConnectionData(bool isServer, Context *ctx, struct in6_addr addr, uint32_t scope_id, uint16_t port);
// copy
ConnectionData(const ConnectionData& other) = delete;
ConnectionData& operator=(const ConnectionData& other) = delete;
// move
ConnectionData(ConnectionData&& other) = default;
ConnectionData& operator=(ConnectionData&& other) = default;
void cleanupSentPkts();
/*
* 0 - trigger send
* 1 - is good mode
* 2 - is good rtt
* 3 - initiating connection
* 4 - is id set
*/
std::bitset<32> flags;
uint32_t id;
uint32_t lseq;
uint32_t rseq;
uint32_t ack;
std::chrono::steady_clock::duration timer;
std::chrono::steady_clock::duration toggleT;
std::chrono::steady_clock::duration toggleTimer;
std::chrono::steady_clock::duration toggledTimer;
struct in6_addr addr; // in network order
uint32_t scope_id;
uint16_t port; // in native order
std::deque<UDPC_PacketInfo> sentPkts;
TSQueue<UDPC_PacketInfo> sendPkts;
TSQueue<UDPC_PacketInfo> priorityPkts;
TSQueue<UDPC_PacketInfo> receivedPkts;
// pkt id to pkt shared_ptr
std::unordered_map<uint32_t, SentPktInfo::Ptr> sentInfoMap;
std::chrono::steady_clock::time_point received;
std::chrono::steady_clock::time_point sent;
std::chrono::steady_clock::duration rtt;
}; // struct ConnectionData
struct Context {
public:
Context(bool isThreaded);
void log(UDPC_LoggingType) {}
template<typename... Targs>
void log(UDPC_LoggingType type, Targs... args) {
log_impl(type, args...);
}
private:
void log_impl(UDPC_LoggingType) {}
template<typename... Targs>
void log_impl(UDPC_LoggingType type, Targs... args) { // {{{
switch(loggingType.load()) {
case UDPC_LoggingType::SILENT:
return;
case UDPC_LoggingType::ERROR:
if(type == UDPC_LoggingType::ERROR) {
std::cerr << "ERROR: ";
} else {
return;
}
break;
case UDPC_LoggingType::WARNING:
switch(type) {
case UDPC_LoggingType::ERROR:
std::cerr << "ERROR: ";
break;
case UDPC_LoggingType::WARNING:
std::cerr << "WARNING: ";
break;
default:
return;
}
break;
case UDPC_LoggingType::VERBOSE:
switch(type) {
case UDPC_LoggingType::ERROR:
std::cerr << "ERROR: ";
break;
case UDPC_LoggingType::WARNING:
std::cerr << "WARNING: ";
break;
case UDPC_LoggingType::VERBOSE:
std::cerr << "VERBOSE: ";
break;
default:
return;
}
break;
case UDPC_LoggingType::INFO:
switch(type) {
case UDPC_LoggingType::ERROR:
std::cerr << "ERROR: ";
break;
case UDPC_LoggingType::WARNING:
std::cerr << "WARNING: ";
break;
case UDPC_LoggingType::VERBOSE:
std::cerr << "VERBOSE: ";
break;
case UDPC_LoggingType::INFO:
std::cerr << "INFO: ";
break;
default:
return;
}
break;
default:
return;
}
log_impl_next(type, args...);
} // }}}
void log_impl_next(UDPC_LoggingType) {
std::cerr << '\n';
}
template<typename T, typename... Targs>
void log_impl_next(UDPC_LoggingType type, T value, Targs... args) { // {{{
switch(loggingType.load()) {
case UDPC_LoggingType::SILENT:
return;
case UDPC_LoggingType::ERROR:
if(type == UDPC_LoggingType::ERROR) {
std::cerr << value;
}
break;
case UDPC_LoggingType::WARNING:
if(type == UDPC_LoggingType::ERROR || type == UDPC_LoggingType::WARNING) {
std::cerr << value;
}
break;
case UDPC_LoggingType::VERBOSE:
if(type == UDPC_LoggingType::ERROR || type == UDPC_LoggingType::WARNING
|| type == UDPC_LoggingType::VERBOSE) {
std::cerr << value;
}
break;
case UDPC_LoggingType::INFO:
if(type == UDPC_LoggingType::ERROR || type == UDPC_LoggingType::WARNING
|| type == UDPC_LoggingType::VERBOSE
|| type == UDPC_LoggingType::INFO) {
std::cerr << value;
}
break;
}
log_impl_next(type, args...);
} // }}}
public:
void update_impl();
uint_fast32_t _contextIdentifier;
char recvBuf[UDPC_PACKET_MAX_SIZE];
/*
* 0 - is threaded
* 1 - is client
* 2 - is accepting new connections
*/
std::bitset<32> flags;
std::atomic_bool isAcceptNewConnections;
std::atomic_uint32_t protocolID;
std::atomic_uint_fast8_t loggingType;
std::atomic_uint32_t atostrBufIndex;
char atostrBuf[UDPC_ATOSTR_SIZE];
int socketHandle;
struct sockaddr_in6 socketInfo;
std::chrono::steady_clock::time_point lastUpdated;
// ipv6 address and port (as UDPC_ConnectionId) to ConnectionData
std::unordered_map<UDPC_ConnectionId, ConnectionData, ConnectionIdHasher> conMap;
// ipv6 address to all connected UDPC_ConnectionId
std::unordered_map<struct in6_addr, std::unordered_set<UDPC_ConnectionId, ConnectionIdHasher>, IPV6_Hasher> addrConMap;
// id to ipv6 address and port (as UDPC_ConnectionId)
std::unordered_map<uint32_t, UDPC_ConnectionId> idMap;
std::default_random_engine rng_engine;
std::thread thread;
std::atomic_bool threadRunning;
std::mutex mutex;
}; // struct Context
Context *verifyContext(UDPC_HContext ctx);
bool isBigEndian();
/*
* flags:
* - 0x1 - connect
* - 0x2 - ping
* - 0x4 - no_rec_chk
* - 0x8 - resending
*/
void preparePacket(char *data, uint32_t protocolID, uint32_t conID,
uint32_t rseq, uint32_t ack, uint32_t *seqID, int flags);
uint32_t generateConnectionID(Context &ctx);
float durationToFSec(const std::chrono::steady_clock::duration& duration);
float timePointsToFSec(
const std::chrono::steady_clock::time_point& older,
const std::chrono::steady_clock::time_point& newer);
UDPC_PacketInfo get_empty_pinfo();
void threadedUpdate(Context *ctx);
} // namespace UDPC
bool operator ==(const UDPC_ConnectionId& a, const UDPC_ConnectionId& b);
bool operator ==(const struct in6_addr& a, const struct in6_addr& b);
#endif