aboutsummaryrefslogtreecommitdiff
path: root/src/hotstuff_client.cpp
blob: b32bcb5523430f3a6e6cd356c82fb4d49bfd7a14 (plain) (blame)
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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
#include <cassert>
#include <random>
#include <signal.h>
#include "salticidae/type.h"
#include "salticidae/netaddr.h"
#include "salticidae/network.h"
#include "salticidae/util.h"

#include "hotstuff/util.h"
#include "hotstuff/type.h"
#include "hotstuff/client.h"

using salticidae::Config;
using salticidae::MsgNetwork;

using hotstuff::ReplicaID;
using hotstuff::NetAddr;
using hotstuff::EventContext;
using hotstuff::MsgReqCmd;
using hotstuff::MsgRespCmd;
using hotstuff::CommandDummy;
using hotstuff::Finality;
using hotstuff::HotStuffError;
using hotstuff::uint256_t;
using hotstuff::opcode_t;
using hotstuff::command_t;

EventContext eb;
ReplicaID proposer;
size_t max_async_num;
int max_iter_num;
uint32_t cid;
uint32_t cnt = 0;
uint32_t nfaulty;

struct Request {
    ReplicaID rid;
    command_t cmd;
    size_t confirmed;
    salticidae::ElapsedTime et;
    Request(ReplicaID rid, const command_t &cmd):
        rid(rid), cmd(cmd), confirmed(0) { et.start(); }
};

std::unordered_map<ReplicaID, MsgNetwork<opcode_t>::conn_t> conns;
std::unordered_map<const uint256_t, Request> waiting;
std::vector<NetAddr> replicas;
std::vector<std::pair<struct timeval, double>> elapsed;
MsgNetwork<opcode_t> mn(eb, 10, 10, 4096);

void connect_all() {
    for (size_t i = 0; i < replicas.size(); i++)
        conns.insert(std::make_pair(i, mn.connect(replicas[i])));
}

void set_proposer(ReplicaID rid) {
    proposer = rid;
//    auto it = conns.find(rid);
//    if (it == conns.end())
//        conns.insert(std::make_pair(rid, mn.connect(replicas[rid])));
}

void try_send() {
    while (waiting.size() < max_async_num && max_iter_num)
    {
        auto cmd = new CommandDummy(cid, cnt++);
        //mn.send_msg(MsgReqCmd(*cmd), *conns.at(proposer));
        for (auto &p: conns)
            mn.send_msg(MsgReqCmd(*cmd), *(p.second));
#ifndef HOTSTUFF_ENABLE_BENCHMARK
        HOTSTUFF_LOG_INFO("send new cmd %.10s",
                            get_hex(cmd->get_hash()).c_str());
#endif
        waiting.insert(std::make_pair(
            cmd->get_hash(), Request(proposer, cmd)));
        if (max_iter_num > 0)
            max_iter_num--;
    }
}

void client_resp_cmd_handler(MsgRespCmd &&msg, MsgNetwork<opcode_t>::Conn &) {
    auto &fin = msg.fin;
    HOTSTUFF_LOG_DEBUG("got %s", std::string(msg.fin).c_str());
    const uint256_t &cmd_hash = fin.cmd_hash;
    auto it = waiting.find(cmd_hash);
    auto &et = it->second.et;
    if (it == waiting.end()) return;
    et.stop();
//    if (fin.rid != proposer)
//    {
//        HOTSTUFF_LOG_INFO("reconnect to the new proposer");
//        set_proposer(fin.rid);
//    }
//    if (fin.rid != it->second.rid)
//    {
//        mn.send_msg(MsgReqCmd(*(waiting.find(cmd_hash)->second.cmd)),
//                    *conns.at(proposer));
//#ifndef HOTSTUFF_ENABLE_BENCHMARK
//        HOTSTUFF_LOG_INFO("resend cmd %.10s",
//                            get_hex(cmd_hash).c_str());
//#endif
//        et.start();
//        it->second.rid = proposer;
//        return;
//    }
    if (++it->second.confirmed <= nfaulty) return; // wait for f + 1 ack
#ifndef HOTSTUFF_ENABLE_BENCHMARK
    HOTSTUFF_LOG_INFO("got %s, wall: %.3f, cpu: %.3f",
                        std::string(fin).c_str(),
                        et.elapsed_sec, et.cpu_elapsed_sec);
#else
    struct timeval tv;
    gettimeofday(&tv, nullptr);
    elapsed.push_back(std::make_pair(tv, et.elapsed_sec));
#endif
    waiting.erase(it);
    try_send();
}

std::pair<std::string, std::string> split_ip_port_cport(const std::string &s) {
    auto ret = salticidae::trim_all(salticidae::split(s, ";"));
    return std::make_pair(ret[0], ret[1]);
}

void signal_handler(int) {
    throw HotStuffError("got terminal signal");
}

int main(int argc, char **argv) {
    Config config("hotstuff.conf");

    signal(SIGTERM, signal_handler);
    signal(SIGINT, signal_handler);

    auto opt_idx = Config::OptValInt::create(0);
    auto opt_replicas = Config::OptValStrVec::create();
    auto opt_max_iter_num = Config::OptValInt::create(100);
    auto opt_max_async_num = Config::OptValInt::create(10);
    auto opt_cid = Config::OptValInt::create(-1);

    mn.reg_handler(client_resp_cmd_handler);

    try {
        config.add_opt("idx", opt_idx, Config::SET_VAL);
        config.add_opt("cid", opt_cid, Config::SET_VAL);
        config.add_opt("replica", opt_replicas, Config::APPEND);
        config.add_opt("iter", opt_max_iter_num, Config::SET_VAL);
        config.add_opt("max-async", opt_max_async_num, Config::SET_VAL);
        config.parse(argc, argv);
        auto idx = opt_idx->get();
        max_iter_num = opt_max_iter_num->get();
        max_async_num = opt_max_async_num->get();
        std::vector<std::pair<std::string, std::string>> raw;
        for (const auto &s: opt_replicas->get())
        {
            auto res = salticidae::trim_all(salticidae::split(s, ","));
            if (res.size() != 2)
                throw HotStuffError("format error");
            raw.push_back(std::make_pair(res[0], res[1]));
        }

        if (!(0 <= idx && (size_t)idx < raw.size() && raw.size() > 0))
            throw std::invalid_argument("out of range");
        cid = opt_cid->get() != -1 ? opt_cid->get() : idx;
        for (const auto &p: raw)
        {
            auto _p = split_ip_port_cport(p.first);
            size_t _;
            replicas.push_back(NetAddr(NetAddr(_p.first).ip, htons(stoi(_p.second, &_))));
        }

        nfaulty = (replicas.size() - 1) / 3;
        HOTSTUFF_LOG_INFO("nfaulty = %zu", nfaulty);
        connect_all();
        set_proposer(idx);
        try_send();
        eb.dispatch();
    } catch (HotStuffError &e) {
        HOTSTUFF_LOG_ERROR("exception: %s", std::string(e).c_str());
#ifdef HOTSTUFF_ENABLE_BENCHMARK
        for (const auto &e: elapsed)
        {
            char fmt[64];
            struct tm *tmp = localtime(&e.first.tv_sec);
            strftime(fmt, sizeof fmt, "%Y-%m-%d %H:%M:%S.%%06u [hotstuff info] %%.6f\n", tmp);
            fprintf(stderr, fmt, e.first.tv_usec, e.second);
        }
#endif
    }
    return 0;
}