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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2013, Digium, Inc.
*
* David M. Lee, II <dlee@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief Stasis Message Bus configuration API.
*
* \author David M. Lee, II <dlee@digium.com>
*/
/*** MODULEINFO
<support_level>core</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/config_options.h"
#include "asterisk/stasis.h"
#include "asterisk/threadpool.h"
#include <limits.h>
/*** DOCUMENTATION
<configInfo name="stasis" language="en_US">
<synopsis>Stasis message bus configuration.</synopsis>
<configFile name="stasis.conf">
<configObject name="threadpool">
<synopsis>Threadpool configuration.</synopsis>
<configOption name="initial_size" default="0">
<synopsis>Initial number of threads in the message bus threadpool.</synopsis>
</configOption>
<configOption name="idle_timeout_sec" default="20">
<synopsis>Number of seconds for an idle thread to be disposed of.</synopsis>
</configOption>
<configOption name="max_size" default="200">
<synopsis>Maximum number of threads in the threadpool.</synopsis>
</configOption>
</configObject>
</configFile>
</configInfo>
***/
/*! \brief Locking container for safe configuration access. */
static AO2_GLOBAL_OBJ_STATIC(confs);
struct stasis_threadpool_conf {
int initial_size;
int idle_timeout_sec;
int max_size;
};
struct stasis_conf {
struct stasis_threadpool_conf *threadpool;
};
/*! \brief Mapping of the stasis conf struct's globals to the
* threadpool context in the config file. */
static struct aco_type threadpool_option = {
.type = ACO_GLOBAL,
.name = "threadpool",
.item_offset = offsetof(struct stasis_conf, threadpool),
.category = "^threadpool$",
.category_match = ACO_WHITELIST,
};
static struct aco_type *threadpool_options[] = ACO_TYPES(&threadpool_option);
#define CONF_FILENAME "stasis.conf"
/*! \brief The conf file that's processed for the module. */
static struct aco_file conf_file = {
/*! The config file name. */
.filename = CONF_FILENAME,
/*! The mapping object types to be processed. */
.types = ACO_TYPES(&threadpool_option),
};
static void conf_dtor(void *obj)
{
struct stasis_conf *conf = obj;
ao2_cleanup(conf->threadpool);
conf->threadpool = NULL;
}
static void *conf_alloc(void)
{
RAII_VAR(struct stasis_conf *, conf, NULL, ao2_cleanup);
conf = ao2_alloc_options(sizeof(*conf), conf_dtor,
AO2_ALLOC_OPT_LOCK_NOLOCK);
if (!conf) {
return NULL;
}
conf->threadpool = ao2_alloc_options(sizeof(*conf->threadpool), NULL,
AO2_ALLOC_OPT_LOCK_NOLOCK);
if (!conf->threadpool) {
return NULL;
}
aco_set_defaults(&threadpool_option, "threadpool", conf->threadpool);
ao2_ref(conf, +1);
return conf;
}
CONFIG_INFO_CORE("stasis", cfg_info, confs, conf_alloc,
.files = ACO_FILES(&conf_file));
void stasis_config_get_threadpool_options(
struct ast_threadpool_options *threadpool_options)
{
RAII_VAR(struct stasis_conf *, conf, NULL, ao2_cleanup);
conf = ao2_global_obj_ref(confs);
ast_assert(conf && conf->threadpool);
{
struct ast_threadpool_options newopts = {
.version = AST_THREADPOOL_OPTIONS_VERSION,
.initial_size = conf->threadpool->initial_size,
.auto_increment = 1,
.idle_timeout = conf->threadpool->idle_timeout_sec,
.max_size = conf->threadpool->max_size,
};
*threadpool_options = newopts;
}
}
/*! \brief Load (or reload) configuration. */
static int process_config(int reload)
{
RAII_VAR(struct stasis_conf *, conf, conf_alloc(), ao2_cleanup);
switch (aco_process_config(&cfg_info, reload)) {
case ACO_PROCESS_ERROR:
if (conf && !reload
&& !aco_set_defaults(&threadpool_option, "threadpool", conf->threadpool)) {
ast_log(AST_LOG_NOTICE, "Failed to process Stasis configuration; using defaults\n");
ao2_global_obj_replace_unref(confs, conf);
return 0;
}
return -1;
case ACO_PROCESS_OK:
case ACO_PROCESS_UNCHANGED:
break;
}
return 0;
}
static void config_exit(void)
{
aco_info_destroy(&cfg_info);
ao2_global_obj_release(confs);
}
int stasis_config_init(void)
{
if (aco_info_init(&cfg_info)) {
aco_info_destroy(&cfg_info);
return -1;
}
ast_register_atexit(config_exit);
/* threadpool section */
aco_option_register(&cfg_info, "initial_size", ACO_EXACT,
threadpool_options, "0", OPT_INT_T, PARSE_IN_RANGE,
FLDSET(struct stasis_threadpool_conf, initial_size), 0,
INT_MAX);
aco_option_register(&cfg_info, "idle_timeout_sec", ACO_EXACT,
threadpool_options, "20", OPT_INT_T, PARSE_IN_RANGE,
FLDSET(struct stasis_threadpool_conf, idle_timeout_sec), 0,
INT_MAX);
aco_option_register(&cfg_info, "max_size", ACO_EXACT,
threadpool_options, "200", OPT_INT_T, PARSE_IN_RANGE,
FLDSET(struct stasis_threadpool_conf, max_size), 0, INT_MAX);
return process_config(0);
}
|
