14 static const struct blobmsg_policy instance_attr
[__INSTANCE_ATTR_MAX
] = {
15 [INSTANCE_ATTR_COMMAND
] = { "command", BLOBMSG_TYPE_ARRAY
},
16 [INSTANCE_ATTR_ENV
] = { "env", BLOBMSG_TYPE_TABLE
},
17 [INSTANCE_ATTR_DATA
] = { "data", BLOBMSG_TYPE_TABLE
},
21 instance_run(struct service_instance
*in
)
23 struct blobmsg_list_node
*var
;
24 struct blob_attr
*cur
;
26 int argc
= 1; /* NULL terminated */
29 blobmsg_for_each_attr(cur
, in
->command
, rem
)
32 blobmsg_list_for_each(&in
->env
, var
)
33 putenv(blobmsg_data(var
->data
));
35 argv
= alloca(sizeof(char *) * argc
);
38 blobmsg_for_each_attr(cur
, in
->command
, rem
)
39 argv
[argc
++] = blobmsg_data(cur
);
42 execvp(argv
[0], argv
);
47 instance_start(struct service_instance
*in
)
67 DPRINTF("Started instance %s::%s\n", in
->srv
->name
, in
->name
);
69 uloop_process_add(&in
->proc
);
73 instance_timeout(struct uloop_timeout
*t
)
75 struct service_instance
*in
;
77 in
= container_of(t
, struct service_instance
, timeout
);
78 kill(in
->proc
.pid
, SIGKILL
);
79 uloop_process_delete(&in
->proc
);
80 in
->proc
.cb(&in
->proc
, -1);
84 instance_exit(struct uloop_process
*p
, int ret
)
86 struct service_instance
*in
;
88 in
= container_of(p
, struct service_instance
, proc
);
89 uloop_timeout_cancel(&in
->timeout
);
95 instance_stop(struct service_instance
*in
, bool restart
)
97 if (!in
->proc
.pending
)
100 kill(in
->proc
.pid
, SIGTERM
);
104 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
109 if (!blob_attr_equal(in
->command
, in_new
->command
))
112 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
115 if (!blobmsg_list_equal(&in
->data
, &in_new
->data
))
122 instance_config_parse(struct service_instance
*in
)
124 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
125 struct blob_attr
*cur
, *cur2
;
129 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
130 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
132 cur
= tb
[INSTANCE_ATTR_COMMAND
];
136 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
139 blobmsg_for_each_attr(cur2
, cur
, rem
) {
148 if ((cur
= tb
[INSTANCE_ATTR_ENV
])) {
149 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
151 blobmsg_list_fill(&in
->env
, blobmsg_data(cur
), blobmsg_data_len(cur
));
154 if ((cur
= tb
[INSTANCE_ATTR_DATA
])) {
155 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
157 blobmsg_list_fill(&in
->data
, blobmsg_data(cur
), blobmsg_data_len(cur
));
164 instance_config_cleanup(struct service_instance
*in
)
166 blobmsg_list_free(&in
->env
);
167 blobmsg_list_free(&in
->data
);
171 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
173 instance_config_cleanup(in
);
174 blobmsg_list_move(&in
->env
, &in_src
->env
);
175 blobmsg_list_move(&in
->data
, &in_src
->data
);
176 in
->command
= in_src
->command
;
177 in
->name
= in_src
->name
;
181 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
183 bool changed
= instance_config_changed(in
, in_new
);
185 in
->config
= in_new
->config
;
190 instance_stop(in
, true);
191 instance_config_move(in
, in_new
);
196 instance_free(struct service_instance
*in
)
198 uloop_process_delete(&in
->proc
);
199 uloop_timeout_cancel(&in
->timeout
);
200 instance_config_cleanup(in
);
205 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
208 in
->name
= blobmsg_name(config
);
210 in
->timeout
.cb
= instance_timeout
;
211 in
->proc
.cb
= instance_exit
;
213 blobmsg_list_simple_init(&in
->env
);
214 blobmsg_list_simple_init(&in
->data
);
215 in
->valid
= instance_config_parse(in
);
218 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
)
222 i
= blobmsg_open_table(b
, in
->name
);
223 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
224 if (in
->proc
.pending
)
225 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
226 blobmsg_add_blob(b
, in
->command
);
227 blobmsg_close_table(b
, i
);