|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* Async sockets |
|
4
|
|
|
* |
|
5
|
|
|
* @copyright Copyright (c) 2015-2017, Efimov Evgenij <[email protected]> |
|
6
|
|
|
* |
|
7
|
|
|
* This source file is subject to the MIT license that is bundled |
|
8
|
|
|
* with this source code in the file LICENSE. |
|
9
|
|
|
*/ |
|
10
|
|
|
namespace AsyncSockets\RequestExecutor; |
|
11
|
|
|
|
|
12
|
|
|
use AsyncSockets\Event\Event; |
|
13
|
|
|
use AsyncSockets\Event\EventType; |
|
14
|
|
|
use AsyncSockets\Socket\SocketInterface; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* Class ConstantLimitationSolver |
|
18
|
|
|
*/ |
|
19
|
|
|
class ConstantLimitationSolver implements LimitationSolverInterface, EventHandlerInterface |
|
20
|
|
|
{ |
|
21
|
|
|
/** |
|
22
|
|
|
* Limit of running requests |
|
23
|
|
|
* |
|
24
|
|
|
* @var int |
|
25
|
|
|
*/ |
|
26
|
|
|
private $limit; |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* Key with number of active requests in execution context |
|
30
|
|
|
* |
|
31
|
|
|
* @var string |
|
32
|
|
|
*/ |
|
33
|
|
|
private $key; |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* ConstantLimitationSolver constructor. |
|
37
|
|
|
* |
|
38
|
|
|
* @param int $limit Limit of running requests |
|
39
|
|
|
*/ |
|
40
|
6 |
|
public function __construct($limit) |
|
41
|
|
|
{ |
|
42
|
6 |
|
$this->limit = $limit; |
|
43
|
6 |
|
$this->key = uniqid(__CLASS__, true); |
|
44
|
6 |
|
} |
|
45
|
|
|
|
|
46
|
|
|
/** {@inheritdoc} */ |
|
47
|
6 |
|
public function initialize(RequestExecutorInterface $executor, ExecutionContext $executionContext) |
|
48
|
|
|
{ |
|
49
|
6 |
|
$executionContext->inNamespace($this->key)->set('active_requests', 0); |
|
50
|
6 |
|
} |
|
51
|
|
|
|
|
52
|
|
|
/** {@inheritdoc} */ |
|
53
|
6 |
|
public function finalize(RequestExecutorInterface $executor, ExecutionContext $executionContext) |
|
54
|
|
|
{ |
|
55
|
|
|
// empty body |
|
56
|
6 |
|
} |
|
57
|
|
|
|
|
58
|
|
|
/** {@inheritdoc} */ |
|
59
|
2 |
|
public function decide( |
|
60
|
|
|
RequestExecutorInterface $executor, |
|
61
|
|
|
SocketInterface $socket, |
|
62
|
|
|
ExecutionContext $executionContext, |
|
63
|
|
|
$totalSockets |
|
64
|
|
|
) { |
|
65
|
2 |
|
$activeRequests = $executionContext->inNamespace($this->key)->get('active_requests'); |
|
66
|
2 |
|
if ($activeRequests + 1 <= $this->limit) { |
|
67
|
2 |
|
return self::DECISION_OK; |
|
68
|
|
|
} else { |
|
69
|
1 |
|
return self::DECISION_PROCESS_SCHEDULED; |
|
70
|
|
|
} |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
/** {@inheritdoc} */ |
|
74
|
2 |
|
public function invokeEvent( |
|
75
|
|
|
Event $event, |
|
76
|
|
|
RequestExecutorInterface $executor, |
|
77
|
|
|
SocketInterface $socket, |
|
78
|
|
|
ExecutionContext $context |
|
79
|
|
|
) { |
|
80
|
2 |
|
switch ($event->getType()) { |
|
81
|
2 |
|
case EventType::INITIALIZE: |
|
82
|
2 |
|
$this->onSocketRequestInitialize($context); |
|
83
|
2 |
|
break; |
|
84
|
1 |
|
case EventType::FINALIZE: |
|
85
|
1 |
|
$this->onSocketRequestFinalize($context); |
|
86
|
1 |
|
break; |
|
87
|
2 |
|
} |
|
88
|
2 |
|
} |
|
89
|
|
|
|
|
90
|
|
|
/** |
|
91
|
|
|
* Process socket initialize event |
|
92
|
|
|
* |
|
93
|
|
|
* @param ExecutionContext $executionContext Execution context |
|
94
|
|
|
* |
|
95
|
|
|
* @return void |
|
96
|
|
|
*/ |
|
97
|
2 |
|
private function onSocketRequestInitialize(ExecutionContext $executionContext) |
|
98
|
|
|
{ |
|
99
|
2 |
|
$context = $executionContext->inNamespace($this->key); |
|
100
|
2 |
|
$context->set( |
|
101
|
2 |
|
'active_requests', |
|
102
|
2 |
|
$context->get('active_requests') + 1 |
|
103
|
2 |
|
); |
|
104
|
2 |
|
} |
|
105
|
|
|
|
|
106
|
|
|
/** |
|
107
|
|
|
* Process request termination |
|
108
|
|
|
* |
|
109
|
|
|
* @param ExecutionContext $executionContext Execution context |
|
110
|
|
|
* |
|
111
|
|
|
* @return void |
|
112
|
|
|
*/ |
|
113
|
1 |
|
private function onSocketRequestFinalize(ExecutionContext $executionContext) |
|
114
|
|
|
{ |
|
115
|
1 |
|
$context = $executionContext->inNamespace($this->key); |
|
116
|
1 |
|
$context->set( |
|
117
|
1 |
|
'active_requests', |
|
118
|
1 |
|
$context->get('active_requests') - 1 |
|
119
|
1 |
|
); |
|
120
|
1 |
|
} |
|
121
|
|
|
} |
|
122
|
|
|
|
edefimov /
async-sockets
