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);