blob: 83c3da28bc7e5f8645deac145c5c3e6d5d3581f7 (
plain)
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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
// $Id$
#include "ace/OS_NS_stdlib.h"
#include "ace/Message_Block.h"
#ifndef JAWS_BUILD_DLL
#define JAWS_BUILD_DLL
#endif
#include "jaws3/Concurrency.h"
#include "jaws3/THYBRID_Concurrency.h"
#include "jaws3/Protocol_Handler.h"
#include "jaws3/Options.h"
JAWS_THYBRID_Concurrency::JAWS_THYBRID_Concurrency (void)
: getting_ (0)
, min_number_of_threads_ (1)
, max_number_of_threads_ (-1)
, shutdown_task_ (0)
, error_ (0)
{
const char *value;
value = JAWS_Options::instance ()->getenv ("JAWS_MIN_THYBRID_THREADS");
if (value != 0)
this->min_number_of_threads_ = ACE_OS::atoi (value);
else
this->min_number_of_threads_ =
ACE_OS::atoi (JAWS_DEFAULT_MIN_THYBRID_THREADS);
if (this->min_number_of_threads_ <= 0)
this->min_number_of_threads_ = 1;
value = JAWS_Options::instance ()->getenv ("JAWS_MAX_THYBRID_THREADS");
if (value != 0)
this->max_number_of_threads_ = ACE_OS::atoi (value);
else
this->max_number_of_threads_ =
ACE_OS::atoi (JAWS_DEFAULT_MAX_THYBRID_THREADS);
if (this->max_number_of_threads_ <= 0)
this->max_number_of_threads_ = -1;
else if (this->max_number_of_threads_ < this->min_number_of_threads_)
this->max_number_of_threads_ = this->min_number_of_threads_;
int r;
r = this->activate (THR_BOUND | THR_JOINABLE, this->min_number_of_threads_);
if (r < 0)
{
this->shutdown_task_ = 1;
this->error_ = 1;
}
}
int
JAWS_THYBRID_Concurrency::putq (JAWS_Protocol_Handler *ph)
{
if (this->error_)
return -1;
JAWS_CONCURRENCY_TASK *task = this;
int result = task->putq (& ph->mb_);
if (result != -1)
{
if (this->getting_ < this->min_number_of_threads_
&& (this->max_number_of_threads_ < 0
|| this->thr_count () < (size_t) this->max_number_of_threads_))
{
int r;
r = this->activate ( THR_BOUND | THR_JOINABLE
, 1 // number of threads
, 1 // force active
);
if (r < 0)
{
// ACE_ERROR
return -1;
}
}
}
return result;
}
int
JAWS_THYBRID_Concurrency::getq (JAWS_Protocol_Handler *&ph)
{
ph = 0;
JAWS_CONCURRENCY_TASK *task = this;
if (this->shutdown_task_ && task->msg_queue ()->message_count () == 0)
return -1;
int getting = ++(this->getting_);
if (getting > this->min_number_of_threads_)
{
if (task->msg_queue ()->message_count () == 0)
{
--(this->getting_);
return -1;
}
}
ACE_Message_Block *mb = 0;
int result = task->getq (mb);
if (result != -1)
{
ph = (JAWS_Protocol_Handler *) mb->base ();
if (ph == 0)
{
// Shutdown this task;
this->shutdown_task_ = 1;
if (this->getting_ > 1)
{
task->putq (mb);
result = -1;
}
}
}
--(this->getting_);
return result;
}
|
