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#include <cassert>
#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::ElapsedTime;
using salticidae::trim_all;
using salticidae::split;
using salticidae::MsgNetwork;
using hotstuff::ReplicaID;
using hotstuff::NetAddr;
using hotstuff::EventContext;
using hotstuff::uint256_t;
using hotstuff::MsgClient;
using hotstuff::CommandDummy;
using hotstuff::command_t;
using hotstuff::Finality;
using hotstuff::HotStuffError;
EventContext eb;
ReplicaID proposer;
size_t max_async_num;
int max_iter_num;
struct Request {
ReplicaID rid;
command_t cmd;
ElapsedTime et;
Request(ReplicaID rid, const command_t &cmd):
rid(rid), cmd(cmd) { et.start(); }
};
std::unordered_map<int, salticidae::RingBuffer> buffers;
std::unordered_map<const uint256_t, Request> waiting;
MsgNetwork<MsgClient> mn(eb, 10, 0, 2, 4096);
std::unordered_map<ReplicaID, MsgNetwork<MsgClient>::conn_t> conns;
std::vector<NetAddr> replicas;
void set_proposer(ReplicaID rid) {
proposer = rid;
auto it = conns.find(rid);
if (it == conns.end())
conns.insert(std::make_pair(rid, mn.create_conn(replicas[rid])));
}
void try_send() {
while (waiting.size() < max_async_num && max_iter_num)
{
auto cmd = CommandDummy::make_cmd();
MsgClient msg;
msg.gen_reqcmd(*cmd);
mn.send_msg(msg, conns.find(proposer)->second);
HOTSTUFF_LOG_INFO("send new cmd %.10s",
get_hex(cmd->get_hash()).c_str());
waiting.insert(std::make_pair(
cmd->get_hash(), Request(proposer, cmd)));
if (max_iter_num > 0)
max_iter_num--;
}
}
void on_receive(const MsgClient &msg, MsgNetwork<MsgClient>::conn_t) {
Finality fin;
HOTSTUFF_LOG_DEBUG("got %s", std::string(msg).c_str());
if (!msg.verify_checksum())
HOTSTUFF_LOG_ERROR("incorrect checksum %08x", msg.get_checksum());
msg.parse_respcmd(fin);
const uint256_t &cmd_hash = fin.cmd_hash;
auto it = waiting.find(cmd_hash);
if (fin.rid != proposer)
{
HOTSTUFF_LOG_INFO("reconnect to the new proposer");
set_proposer(fin.rid);
}
if (fin.rid != it->second.rid)
{
MsgClient msg;
msg.gen_reqcmd(*(waiting.find(cmd_hash)->second.cmd));
mn.send_msg(msg, conns.find(proposer)->second);
HOTSTUFF_LOG_INFO("resend cmd %.10s",
get_hex(cmd_hash).c_str());
it->second.et.start();
it->second.rid = proposer;
return;
}
HOTSTUFF_LOG_INFO(
"got response for %.10s: <decision=%d, blk=%.10s>",
get_hex(cmd_hash).c_str(),
fin.decision,
get_hex(fin.blk_hash).c_str());
if (it == waiting.end()) return;
waiting.erase(it);
try_send();
}
std::pair<std::string, std::string> split_ip_port_cport(const std::string &s) {
auto ret = trim_all(split(s, ";"));
return std::make_pair(ret[0], ret[1]);
}
int main(int argc, char **argv) {
Config config("hotstuff.conf");
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);
mn.reg_handler(hotstuff::RESP_CMD, on_receive);
try {
config.add_opt("idx", opt_idx, 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 = trim_all(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");
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, &_))));
}
set_proposer(idx);
try_send();
eb.dispatch();
} catch (HotStuffError &e) {
HOTSTUFF_LOG_ERROR("exception: %s", std::string(e).c_str());
}
return 0;
}
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