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 setenv(blobmsg_name(var
->data
), blobmsg_data(var
->data
), 1);
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 DPRINTF("Instance %s::%s exit with error code %d\n", in
->srv
->name
, in
->name
, ret
);
90 uloop_timeout_cancel(&in
->timeout
);
96 instance_stop(struct service_instance
*in
, bool restart
)
98 if (!in
->proc
.pending
)
101 kill(in
->proc
.pid
, SIGTERM
);
105 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
110 if (!blob_attr_equal(in
->command
, in_new
->command
))
113 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
116 if (!blobmsg_list_equal(&in
->data
, &in_new
->data
))
123 instance_config_parse(struct service_instance
*in
)
125 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
126 struct blob_attr
*cur
, *cur2
;
130 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
131 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
133 cur
= tb
[INSTANCE_ATTR_COMMAND
];
137 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
140 blobmsg_for_each_attr(cur2
, cur
, rem
) {
149 if ((cur
= tb
[INSTANCE_ATTR_ENV
])) {
150 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
152 blobmsg_list_fill(&in
->env
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
155 if ((cur
= tb
[INSTANCE_ATTR_DATA
])) {
156 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
158 blobmsg_list_fill(&in
->data
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
165 instance_config_cleanup(struct service_instance
*in
)
167 blobmsg_list_free(&in
->env
);
168 blobmsg_list_free(&in
->data
);
172 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
174 instance_config_cleanup(in
);
175 blobmsg_list_move(&in
->env
, &in_src
->env
);
176 blobmsg_list_move(&in
->data
, &in_src
->data
);
177 in
->command
= in_src
->command
;
178 in
->name
= in_src
->name
;
182 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
184 bool changed
= instance_config_changed(in
, in_new
);
186 in
->config
= in_new
->config
;
191 instance_stop(in
, true);
192 instance_config_move(in
, in_new
);
197 instance_free(struct service_instance
*in
)
199 uloop_process_delete(&in
->proc
);
200 uloop_timeout_cancel(&in
->timeout
);
201 instance_config_cleanup(in
);
206 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
209 in
->name
= blobmsg_name(config
);
211 in
->timeout
.cb
= instance_timeout
;
212 in
->proc
.cb
= instance_exit
;
214 blobmsg_list_simple_init(&in
->env
);
215 blobmsg_list_simple_init(&in
->data
);
216 in
->valid
= instance_config_parse(in
);
219 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
)
223 i
= blobmsg_open_table(b
, in
->name
);
224 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
225 if (in
->proc
.pending
)
226 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
227 blobmsg_add_blob(b
, in
->command
);
228 blobmsg_close_table(b
, i
);