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
|
#include "libsock/server/clients.hpp"
#include "libsock/server/client.hpp"
#include <algorithm>
#include <any>
#include <ranges>
#include <stdexcept>
#include <unistd.h>
#include <utility>
using namespace LibSock::Server;
void Clients::shutdownClients(std::optional<std::function<std::any(const std::vector<std::pair<std::jthread, SP<Client>>> &)>> cb) {
if (m_vClients.empty())
return;
if (cb)
(*cb)(m_vClients);
for (auto &[thread, client] : m_vClients) {
if (thread.joinable())
thread.detach();
client.reset();
}
m_vClients.clear();
}
Clients::Clients() {
if (std::atexit([]() {
pClients->shutdownClients();
}))
void(); // failed to register exit handler...
if (pClients)
throw std::runtime_error("server:client: ClientManager already exist");
pClients = SP<Clients>(this);
};
Clients::~Clients() {
for (auto &[thread, client] : m_vClients) {
if (thread.joinable())
thread.detach();
kick(WP<Client>(client));
}
}
WP<Client> Clients::newClient(std::optional<std::function<std::any(WP<Client>)>> cb) {
SP client = SP<Client>(new Client());
auto &instance = m_vClients.emplace_back(std::jthread([client]() { client->run(); }), client);
instance.second->self = std::weak_ptr<Client>(instance.second);
if (cb)
(*cb)(instance.second);
return instance.second;
}
void Clients::broadcast(const std::string &msg, std::optional<std::weak_ptr<Client>> self) {
broadcast(SData{msg, self});
}
void Clients::broadcast(const SData &msg) {
for (const auto &[thread, client] : m_vClients) {
if (!client)
continue;
client->write(msg.msg);
}
m_vDatas.push_back(msg);
}
SP<Client> Clients::getByIp(const std::string &ip) const {
auto it = std::ranges::find_if(m_vClients, [&ip](const auto &s) { return s.second->getIp() == ip; });
return it != m_vClients.end() ? it->second : nullptr;
}
std::vector<SP<Client>> Clients::getClients() const {
return m_vClients | std::views::transform([](const auto &s) { return s.second; }) | std::ranges::to<std::vector>();
}
std::vector<SData> Clients::getDatas() const {
return m_vDatas;
}
void Clients::kick(WP<Client> clientWeak, const bool kill, const std::string &reason, std::optional<std::function<std::any(const std::vector<std::pair<std::jthread, SP<Client>>>::iterator &)>> cb) {
auto client = clientWeak.lock();
if (!client)
return;
for (auto it = m_vClients.begin(); it != m_vClients.end(); ++it) {
if (it->second == client) {
if (client)
// this only exist when the client is registered
// not sure why the second is null
if (cb)
(*cb)(it);
if (!reason.empty())
client->write(reason);
const auto native_handle = it->first.native_handle();
if (it->first.joinable())
it->first.detach(); // .detach the thread since it's removing itself
it->second.reset();
m_vClients.erase(it);
if (kill && native_handle != 0)
// cancel(terminal/kill) the thread if it doesn't exit on its own
// pthread_cancel cuz it's the safest https://stackoverflow.com/a/3438576
// need a condition because it might crash if the thread is already dead
pthread_cancel(native_handle);
return;
}
}
}
|
