|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Petrica\StatsdSystem\Statsd\Connection; |
|
4
|
|
|
|
|
5
|
|
|
use Domnikl\Statsd\Connection; |
|
6
|
|
|
|
|
7
|
|
|
class UdpSocket extends Connection\InetSocket implements Connection |
|
8
|
|
|
{ |
|
9
|
|
|
/** |
|
10
|
|
|
* the used UDP socket resource |
|
11
|
|
|
* |
|
12
|
|
|
* @var resource|null|false |
|
13
|
|
|
*/ |
|
14
|
|
|
private $socket; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* @var bool |
|
18
|
|
|
*/ |
|
19
|
|
|
private $isConnected; |
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* sends a message to the socket |
|
23
|
|
|
* |
|
24
|
|
|
* @param string $message |
|
25
|
|
|
* |
|
26
|
|
|
* @codeCoverageIgnore |
|
27
|
|
|
* this is ignored because it writes to an actual socket and is not testable |
|
28
|
|
|
*/ |
|
29
|
|
|
public function send($message) |
|
30
|
|
|
{ |
|
31
|
|
|
try { |
|
32
|
|
|
parent::send($message); |
|
33
|
|
|
} catch (\Exception $e) { |
|
34
|
|
|
// ignore it: stats logging failure shouldn't stop the whole app |
|
35
|
|
|
} |
|
36
|
|
|
} |
|
37
|
|
|
|
|
38
|
|
|
/** |
|
39
|
|
|
* Manually close current connection |
|
40
|
|
|
*/ |
|
41
|
|
|
public function close() |
|
42
|
|
|
{ |
|
43
|
|
|
if ($this->isConnected()) { |
|
44
|
|
|
@fclose($this->socket); |
|
|
|
|
|
|
45
|
|
|
$this->isConnected = false; |
|
46
|
|
|
} |
|
47
|
|
|
} |
|
48
|
|
|
|
|
49
|
|
|
/** |
|
50
|
|
|
* @param string $message |
|
51
|
|
|
*/ |
|
52
|
|
|
protected function writeToSocket($message) |
|
53
|
|
|
{ |
|
54
|
|
|
// suppress all errors |
|
55
|
|
|
@fwrite($this->socket, $message); |
|
|
|
|
|
|
56
|
|
|
} |
|
57
|
|
|
|
|
58
|
|
|
/** |
|
59
|
|
|
* @param string $host |
|
60
|
|
|
* @param int $port |
|
61
|
|
|
* @param int|null $timeout |
|
62
|
|
|
* @param bool $persistent |
|
63
|
|
|
*/ |
|
64
|
|
|
protected function connect($host, $port, $timeout, $persistent = false) |
|
65
|
|
|
{ |
|
66
|
|
|
$errorNumber = null; |
|
67
|
|
|
$errorMessage = null; |
|
68
|
|
|
|
|
69
|
|
|
$url = sprintf("udp://%s", $host); |
|
70
|
|
|
|
|
71
|
|
|
if ($persistent) { |
|
72
|
|
|
$this->socket = @pfsockopen($url, $port, $errorNumber, $errorMessage, $timeout); |
|
73
|
|
|
} else { |
|
74
|
|
|
$this->socket = @fsockopen($url, $port, $errorNumber, $errorMessage, $timeout); |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
$this->isConnected = true; |
|
78
|
|
|
} |
|
79
|
|
|
|
|
80
|
|
|
/** |
|
81
|
|
|
* checks whether the socket connection is alive |
|
82
|
|
|
* |
|
83
|
|
|
* only tries to connect once |
|
84
|
|
|
* |
|
85
|
|
|
* ever after isConnected will return true, |
|
86
|
|
|
* because $this->socket is then false |
|
87
|
|
|
* |
|
88
|
|
|
* @return bool |
|
89
|
|
|
*/ |
|
90
|
|
|
protected function isConnected() |
|
91
|
|
|
{ |
|
92
|
|
|
return $this->isConnected; |
|
93
|
|
|
} |
|
94
|
|
|
} |
If you suppress an error, we recommend checking for the error condition explicitly: