1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
#pragma once
#include <erebos/network.h>
#include "network/protocol.h"
#include <condition_variable>
#include <mutex>
#include <shared_mutex>
#include <thread>
#include <vector>
#include <netinet/in.h>
using std::condition_variable;
using std::monostate;
using std::mutex;
using std::optional;
using std::shared_lock;
using std::shared_mutex;
using std::shared_ptr;
using std::string;
using std::thread;
using std::unique_ptr;
using std::variant;
using std::vector;
using std::tuple;
using std::weak_ptr;
using std::enable_shared_from_this;
namespace chrono = std::chrono;
using chrono::steady_clock;
namespace erebos {
class ReplyBuilder;
struct WaitingRef;
struct Server::Peer
{
Peer(const Peer &) = delete;
Peer & operator=(const Peer &) = delete;
Priv & server;
NetworkProtocol::Connection connection;
variant<monostate,
shared_ptr<struct WaitingRef>,
Identity> identity;
vector<shared_ptr<WaitingRef>> identityUpdates;
Storage tempStorage;
PartialStorage partStorage;
vector<tuple<UUID, shared_ptr<WaitingRef>>> serviceQueue {};
vector< shared_ptr< NetworkProtocol::InStream >> dataResponseStreams {};
vector< Digest > requestedData {};
shared_ptr<erebos::Peer::Priv> lpeer = nullptr;
void updateIdentity(ReplyBuilder &, vector<shared_ptr<erebos::Peer::Priv>> & notifyPeers);
void updateChannel(ReplyBuilder &);
void finalizeChannel(ReplyBuilder &, unique_ptr<Channel>);
void updateService(ReplyBuilder &, vector<tuple<shared_ptr<erebos::Peer::Priv>, Service &, Ref>> & readyServices);
void checkDataResponseStreams( ReplyBuilder & );
};
struct Peer::Priv : enable_shared_from_this<Peer::Priv>
{
weak_ptr<Server::Peer> speer;
weak_ptr<PeerList::Priv> list;
size_t listIndex;
void notifyWatchers();
void runServicesHandler(Service & service, Ref ref);
};
struct PeerList::Priv : enable_shared_from_this<PeerList::Priv>
{
mutex dataMutex;
vector<shared_ptr<Peer::Priv>> peers;
vector<function<void(size_t, const Peer *)>> watchers;
void push(const shared_ptr<Server::Peer> &);
};
struct Server::Priv
{
Priv(const Head<LocalState> & local, const Identity & self);
~Priv();
shared_ptr<Priv> getptr();
void startThreads();
void doListen();
void doAnnounce();
bool isSelfAddress(const sockaddr_in6 & paddr);
Peer * findPeer(NetworkProtocol::Connection::Id cid) const;
Peer & getPeer(const sockaddr_in6 & paddr);
Peer & addPeer(NetworkProtocol::Connection conn);
void handlePacket(Peer &, const NetworkProtocol::Header &, ReplyBuilder &);
void handleLocalHeadChange(const Head<LocalState> &);
constexpr static uint16_t discoveryPort { 29665 };
constexpr static chrono::seconds announceInterval { 60 };
mutable mutex dataMutex;
condition_variable announceCondvar;
bool finish = false;
shared_mutex selfMutex;
Identity self;
const Bhv<LocalState> localState;
thread threadListen;
thread threadAnnounce;
vector<shared_ptr<Peer>> peers;
PeerList plist;
vector<struct NetworkProtocol::Header> outgoing;
vector<weak_ptr<WaitingRef>> waiting;
NetworkProtocol protocol;
vector<in_addr> localAddresses;
vector<in_addr> bcastAddresses;
// Stop watching before destroying other data
WatchedHead<LocalState> localHead;
// Start destruction with finalizing services
vector<unique_ptr<Service>> services;
};
class ReplyBuilder
{
public:
using Header = NetworkProtocol::Header;
void header( Header::Item && );
void body( const Ref & );
void stream( shared_ptr< NetworkProtocol::OutStream >);
const vector< Header::Item > & header() const { return mheader; }
vector< Object > body() const;
shared_ptr< NetworkProtocol::OutStream > stream() const { return mstream; }
size_t size() const;
private:
vector< Header::Item > mheader;
vector< Ref > mbody;
size_t bodySize = 0;
shared_ptr< NetworkProtocol::OutStream > mstream;
};
struct WaitingRef
{
const Storage storage;
const PartialRef ref;
vector< Digest > missing;
optional< Ref > check();
optional< Ref > check( ReplyBuilder &, const vector< Digest > &);
};
}
|