|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types=1); |
|
3
|
|
|
|
|
4
|
|
|
namespace MySQLReplication\Socket; |
|
5
|
|
|
|
|
6
|
|
|
class Socket implements SocketInterface |
|
7
|
|
|
{ |
|
8
|
|
|
private $socket; |
|
9
|
|
|
|
|
10
|
|
|
public function __destruct() |
|
11
|
|
|
{ |
|
12
|
|
|
$this->close(); |
|
13
|
|
|
} |
|
14
|
|
|
|
|
15
|
|
|
public function close(): void |
|
16
|
|
|
{ |
|
17
|
|
|
if ($this->isConnected()) { |
|
18
|
|
|
socket_shutdown($this->socket); |
|
19
|
|
|
socket_close($this->socket); |
|
20
|
|
|
} |
|
21
|
|
|
$this->socket = null; |
|
22
|
|
|
} |
|
23
|
|
|
|
|
24
|
|
|
public function isConnected(): bool |
|
25
|
|
|
{ |
|
26
|
|
|
return is_resource($this->socket) || $this->socket instanceof \Socket; |
|
27
|
|
|
} |
|
28
|
|
|
|
|
29
|
|
|
public function connectToStream(string $host, int $port): void |
|
30
|
|
|
{ |
|
31
|
|
|
$this->socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); |
|
32
|
|
|
if (!$this->socket) { |
|
33
|
|
|
throw new SocketException( |
|
34
|
|
|
SocketException::SOCKET_UNABLE_TO_CREATE_MESSAGE . $this->getSocketErrorMessage(), |
|
35
|
|
|
SocketException::SOCKET_UNABLE_TO_CREATE_CODE |
|
36
|
|
|
); |
|
37
|
|
|
} |
|
38
|
|
|
socket_set_block($this->socket); |
|
39
|
|
|
socket_set_option($this->socket, SOL_SOCKET, SO_KEEPALIVE, 1); |
|
40
|
|
|
|
|
41
|
|
|
if (!socket_connect($this->socket, $host, $port)) { |
|
42
|
|
|
throw new SocketException($this->getSocketErrorMessage(), $this->getSocketErrorCode()); |
|
43
|
|
|
} |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
private function getSocketErrorMessage(): string |
|
47
|
|
|
{ |
|
48
|
|
|
return socket_strerror($this->getSocketErrorCode()); |
|
49
|
|
|
} |
|
50
|
|
|
|
|
51
|
|
|
private function getSocketErrorCode(): int |
|
52
|
|
|
{ |
|
53
|
|
|
return socket_last_error(); |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
public function readFromSocket(int $length): string |
|
57
|
|
|
{ |
|
58
|
|
|
$received = socket_recv($this->socket, $buf, $length, MSG_WAITALL); |
|
59
|
|
|
if ($length === $received) { |
|
60
|
|
|
return $buf; |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
// http://php.net/manual/en/function.socket-recv.php#47182 |
|
64
|
|
|
if (0 === $received) { |
|
65
|
|
|
throw new SocketException( |
|
66
|
|
|
SocketException::SOCKET_DISCONNECTED_MESSAGE, |
|
67
|
|
|
SocketException::SOCKET_DISCONNECTED_CODE |
|
68
|
|
|
); |
|
69
|
|
|
} |
|
70
|
|
|
|
|
71
|
|
|
throw new SocketException($this->getSocketErrorMessage(), $this->getSocketErrorCode()); |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
public function writeToSocket(string $data): void |
|
75
|
|
|
{ |
|
76
|
|
|
if (!socket_write($this->socket, $data, strlen($data))) { |
|
77
|
|
|
throw new SocketException( |
|
78
|
|
|
SocketException::SOCKET_UNABLE_TO_WRITE_MESSAGE . $this->getSocketErrorMessage(), |
|
79
|
|
|
SocketException::SOCKET_UNABLE_TO_WRITE_CODE |
|
80
|
|
|
); |
|
81
|
|
|
} |
|
82
|
|
|
} |
|
83
|
|
|
} |
Moln /
php-mysql-replication
