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);