V7_PRIVATE v7_val_t mk_cfunction_obj_with_proto(struct v7 *v7,
v7_cfunction_t *f, int num_args,
v7_val_t proto) {
struct gc_tmp_frame tf = new_tmp_frame(v7);
v7_val_t res = mk_cfunction_obj(v7, f, num_args);
tmp_stack_push(&tf, &res);
v7_def(v7, res, "prototype", 9, (V7_DESC_ENUMERABLE(0) | V7_DESC_WRITABLE(0) |
V7_DESC_CONFIGURABLE(0)),
proto);
v7_def(v7, proto, "constructor", 11, V7_DESC_ENUMERABLE(0), res);
tmp_frame_cleanup(&tf);
return res;
}
/*
* `on` method on a mqtt client object registers an event handler
* for a given event type. Recognized event types:
*
* - `connect`: invoked on sucessfull connection (mqtt connack message)
* - `error`: invoked on connection error
* - `close`: invoked when the connection gets closed
* - `message`: invoked when a new message is received. The callback
* receives (topic, message) arguments, both strings
*/
enum v7_err MQTT_on(struct v7 *v7, v7_val_t *res) {
enum v7_err rcode = V7_OK;
v7_val_t evv = v7_arg(v7, 0);
v7_val_t cb = v7_arg(v7, 1);
const char *ev, *key = NULL;
ev = v7_get_cstring(v7, &evv);
if (strcmp(ev, "connect") == 0) {
key = SJ_MQTT_CONNECT_CB;
} else if (strcmp(ev, "message") == 0) {
key = SJ_MQTT_MESSAGE_CB;
} else if (strcmp(ev, "error") == 0) {
key = SJ_MQTT_ERROR_CB;
} else if (strcmp(ev, "close") == 0) {
key = SJ_MQTT_CLOSE_CB;
} else {
rcode = v7_throwf(v7, "Error", "unsupported protocol");
goto clean;
}
v7_def(v7, v7_get_this(v7), key, ~0, V7_DESC_ENUMERABLE(0), cb);
(void) res;
clean:
return rcode;
}
V7_PRIVATE
val_t mk_js_function(struct v7 *v7, struct v7_generic_object *scope,
val_t proto) {
struct v7_js_function *f;
val_t fval = V7_NULL;
struct gc_tmp_frame tf = new_tmp_frame(v7);
tmp_stack_push(&tf, &proto);
tmp_stack_push(&tf, &fval);
f = new_function(v7);
if (f == NULL) {
/* fval is left `null` */
goto cleanup;
}
#if defined(V7_ENABLE_ENTITY_IDS)
f->base.entity_id_base = V7_ENTITY_ID_PART_OBJ;
f->base.entity_id_spec = V7_ENTITY_ID_PART_JS_FUNC;
#endif
fval = js_function_to_value(f);
f->base.properties = NULL;
f->scope = scope;
/*
* Before setting a `V7_OBJ_FUNCTION` flag, make sure we don't have
* `V7_OBJ_DENSE_ARRAY` flag set
*/
assert(!(f->base.attributes & V7_OBJ_DENSE_ARRAY));
f->base.attributes |= V7_OBJ_FUNCTION;
/* TODO(mkm): lazily create these properties on first access */
if (v7_is_object(proto)) {
v7_def(v7, proto, "constructor", 11, V7_DESC_ENUMERABLE(0), fval);
v7_def(v7, fval, "prototype", 9,
V7_DESC_ENUMERABLE(0) | V7_DESC_CONFIGURABLE(0), proto);
}
cleanup:
tmp_frame_cleanup(&tf);
return fval;
}
V7_PRIVATE
v7_val_t mk_cfunction_obj(struct v7 *v7, v7_cfunction_t *f, int num_args) {
val_t obj = mk_object(v7, v7->vals.function_prototype);
struct gc_tmp_frame tf = new_tmp_frame(v7);
tmp_stack_push(&tf, &obj);
v7_def(v7, obj, "", 0, _V7_DESC_HIDDEN(1), v7_mk_cfunction(f));
if (num_args >= 0) {
v7_def(v7, obj, "length", 6, (V7_DESC_ENUMERABLE(0) | V7_DESC_WRITABLE(0) |
V7_DESC_CONFIGURABLE(0)),
v7_mk_number(v7, num_args));
}
tmp_frame_cleanup(&tf);
return obj;
}
static enum v7_err MyThing_ctor(struct v7 *v7, v7_val_t *res) {
v7_val_t this_obj = v7_get_this(v7);
v7_val_t arg0 = v7_arg(v7, 0);
v7_def(v7, this_obj, "__arg", ~0 /* = strlen */, V7_DESC_ENUMERABLE(0), arg0);
/*
* A constructor function can access the newly created object with
* `v7_get_this()`. The constructor can override the result of the `new`
* expression by explicitly setting `res` to another object. Any non-object
* value set into `res` will be ignored. This matches the JavaScript
* constructor return value semantics.
*/
(void) res; /* no warning */
return V7_OK;
}
void sj_mqtt_api_setup(struct v7 *v7) {
v7_val_t mqtt_proto = v7_mk_object(v7);
v7_val_t mqtt_connect =
v7_mk_function_with_proto(v7, sj_mqtt_connect, mqtt_proto);
v7_val_t mqtt;
v7_own(v7, &mqtt_connect);
mqtt = v7_mk_object(v7);
v7_own(v7, &mqtt);
v7_set(v7, mqtt, "connect", ~0, mqtt_connect);
v7_def(v7, mqtt, "proto", ~0, V7_DESC_ENUMERABLE(0), mqtt_proto);
v7_set_method(v7, mqtt_proto, "publish", MQTT_publish);
v7_set_method(v7, mqtt_proto, "subscribe", MQTT_subscribe);
v7_set_method(v7, mqtt_proto, "on", MQTT_on);
v7_set(v7, v7_get_global(v7), "MQTT", ~0, mqtt);
v7_disown(v7, &mqtt);
v7_disown(v7, &mqtt_connect);
}
void init_updater_clubby(struct v7 *v7) {
(void) v7;
#ifndef DISABLE_C_CLUBBY
#ifndef CS_DISABLE_JS
s_v7 = v7;
v7_val_t updater = v7_mk_object(v7);
v7_val_t sys = v7_get(v7, v7_get_global(v7), "Sys", ~0);
s_updater_notify_cb = V7_UNDEFINED;
v7_own(v7, &s_updater_notify_cb);
v7_def(v7, sys, "updater", ~0, V7_DESC_ENUMERABLE(0), updater);
v7_set_method(v7, updater, "notify", Updater_notify);
v7_set_method(v7, updater, "start", Updater_startupdate);
v7_def(s_v7, updater, "GOT_REQUEST", ~0,
(V7_DESC_WRITABLE(0) | V7_DESC_CONFIGURABLE(0)),
v7_mk_number(v7, UJS_GOT_REQUEST));
v7_def(s_v7, updater, "COMPLETED", ~0,
(V7_DESC_WRITABLE(0) | V7_DESC_CONFIGURABLE(0)),
v7_mk_number(v7, UJS_COMPLETED));
v7_def(s_v7, updater, "NOTHING_TODO", ~0,
(V7_DESC_WRITABLE(0) | V7_DESC_CONFIGURABLE(0)),
v7_mk_number(v7, UJS_NOTHING_TODO));
v7_def(s_v7, updater, "FAILED", ~0,
(V7_DESC_WRITABLE(0) | V7_DESC_CONFIGURABLE(0)),
v7_mk_number(v7, UJS_ERROR));
#endif
sj_clubby_register_global_command("/v1/SWUpdate.Update", handle_update_req,
NULL);
sj_clubby_register_global_command(clubby_cmd_ready, handle_clubby_ready,
NULL);
#endif
}
