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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "biruda_cmdline.h"
#include "confuse.h"
#include "master.h"
#include "worker.h"
#include "coordinator.h"
static const char *DEFAULT_CONFIG_FILE = "/etc/biruda/biruda.conf";
static const unsigned int DEFAULT_WEBSERVER_PORT = 8080;
static const char *DEFAULT_WEBSERVER_HOST = "localhost";
static const unsigned int DEFAULT_WEBSERVER_THREADS = 4;
static struct gengetopt_args_info *global_args_info = NULL;
static int parse_options_and_arguments( int argc, char *argv[], struct gengetopt_args_info *args_info )
{
struct cmdline_parser_params params;
cmdline_parser_params_init( ¶ms );
cmdline_parser_init( args_info );
if( cmdline_parser_ext( argc, argv, args_info, ¶ms ) != 0 ) {
cmdline_parser_free( args_info );
return 1;
}
return 0;
}
static int test_config( const struct gengetopt_args_info *args_info )
{
return 0;
}
static int read_config( const char *filename, cfg_t **cfg )
{
cfg_opt_t opts_master[] = {
CFG_STR( "control", 0, CFGF_NODEFAULT ),
CFG_END( )
};
cfg_opt_t opts_coordinator[] = {
CFG_STR( "control", 0, CFGF_NODEFAULT ),
CFG_END( )
};
cfg_opt_t opts_worker[] = {
CFG_STR( "control", 0, CFGF_NODEFAULT ),
CFG_END( )
};
cfg_opt_t opts_webserver[] = {
CFG_STR( "host", (char *)DEFAULT_WEBSERVER_HOST, CFGF_NONE ),
CFG_INT( "port", DEFAULT_WEBSERVER_PORT, CFGF_NONE ),
CFG_INT( "threads", DEFAULT_WEBSERVER_THREADS, CFGF_NONE ),
CFG_END( )
};
cfg_opt_t opts[] = {
CFG_SEC( "master", opts_master, CFGF_MULTI ),
CFG_SEC( "coordinator", opts_coordinator, CFGF_MULTI ),
CFG_SEC( "worker", opts_worker, CFGF_MULTI | CFGF_TITLE ),
CFG_SEC( "webserver", opts_webserver, 0 ),
CFG_END( )
};
*cfg = cfg_init( opts, CFGF_NONE );
switch( cfg_parse( *cfg, filename ) ) {
case CFG_FILE_ERROR:
fprintf( stderr, "ERROR: configuration file '%s' could not be read: %s\n",
filename, strerror( errno ) );
return 1;
case CFG_PARSE_ERROR:
return 1;
case CFG_SUCCESS:
break;
}
return 0;
}
static void print_config( struct gengetopt_args_info *args_info, cfg_t *cfg )
{
cfg_t *master_cfg = cfg_getnsec( cfg, "master", 0 );
unsigned int has_master = cfg_size( cfg, "master" );
if( has_master ) {
puts( "Master:" );
printf( " Control channel: %s\n", cfg_getstr( master_cfg, "control" ) );
puts( "" );
}
cfg_t *coordinator_cfg = cfg_getnsec( cfg, "coordinator", 0 );
unsigned int has_coordinator = cfg_size( cfg, "coordinator" );
if( has_coordinator ) {
puts( "Coordinator:" );
printf( " Control channel: %s\n", cfg_getstr( coordinator_cfg, "control" ) );
puts( "" );
}
unsigned int nof_workers = cfg_size( cfg, "worker" );
if( nof_workers > 0 ) {
printf( "Workers:\n" );
for( unsigned int i = 0; i < nof_workers; i++ ) {
cfg_t *worker_cfg = cfg_getnsec( cfg, "worker", i );
printf( " Worker %s:\n", cfg_title( worker_cfg ) );
printf( " Control channel: %s\n", cfg_getstr( worker_cfg, "control" ) );
}
puts( "" );
}
cfg_t *webserver_cfg = cfg_getnsec( cfg, "webserver", 0 );
puts( "Webserver:" );
printf( " Host: %s\n", cfg_getstr( webserver_cfg, "host" ) );
printf( " Port: %ld\n", cfg_getint( webserver_cfg, "port" ) );
printf( " Number of threads: %ld\n", cfg_getint( webserver_cfg, "threads" ) );
puts( "" );
}
static int create_master( cfg_t *cfg )
{
cfg_t *master_cfg = cfg_getnsec( cfg, "master", 0 );
char *control = cfg_getstr( master_cfg, "control" );
return master_init( control );
}
static int create_coordinator( cfg_t *cfg )
{
cfg_t *master_cfg = cfg_getnsec( cfg, "coordinator", 0 );
char *control = cfg_getstr( master_cfg, "control" );
return coordinator_init( control );
}
int main( int argc, char *argv[] )
{
struct gengetopt_args_info args_info;
cfg_t *cfg;
if( parse_options_and_arguments( argc, argv, &args_info ) ) {
exit( EXIT_FAILURE );
}
if( read_config( args_info.config_file_given ?
args_info.config_file_arg : DEFAULT_CONFIG_FILE, &cfg ) ) {
cfg_free( cfg );
cmdline_parser_free( &args_info );
return 1;
}
if( args_info.test_given ) {
cfg_free( cfg );
cmdline_parser_free( &args_info );
return( ( test_config( &args_info ) == 0 ) ? EXIT_SUCCESS : EXIT_FAILURE );
}
if( args_info.print_given ) {
print_config( &args_info, cfg );
cfg_free( cfg );
cmdline_parser_free( &args_info );
return( ( test_config( &args_info ) == 0 ) ? EXIT_SUCCESS : EXIT_FAILURE );
}
unsigned int has_master = cfg_size( cfg, "master" );
if( has_master ) {
if( create_master( cfg ) != 0 ) {
fprintf( stderr, "FATAL: Unable to create master thread!\n" );
cfg_free( cfg );
cmdline_parser_free( &args_info );
exit( EXIT_FAILURE );
}
}
unsigned int has_coordinator = cfg_size( cfg, "coordinator" );
if( has_coordinator ) {
if( create_coordinator( cfg ) != 0 ) {
fprintf( stderr, "FATAL: Unable to create coordinator thread!\n" );
cfg_free( cfg );
cmdline_parser_free( &args_info );
exit( EXIT_FAILURE );
}
}
sleep( 4 );
if( has_coordinator ) {
coordinator_terminate( );
}
if( has_master ) {
master_terminate( );
}
if( has_coordinator ) {
coordinator_free( );
}
if( has_master ) {
master_free( );
}
cfg_free( cfg );
cmdline_parser_free( &args_info );
exit( EXIT_SUCCESS );
}
|
