- struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq);
-
- return afb_xreq_subscribe(subcall->xreq.caller, eventid);
-}
-
-static int subcall_unsubscribe_cb(struct afb_xreq *xreq, struct afb_eventid *eventid)
-{
- struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq);
-
- return afb_xreq_unsubscribe(subcall->xreq.caller, eventid);
-}
-
-static void subcall_reply_cb(struct afb_xreq *xreq, int status, struct json_object *result)
-{
- struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq);
-
- subcall->completion(subcall, status, result);
- json_object_put(result);
- afb_xreq_unhooked_unref(&subcall->xreq);
-}
-
-static void subcall_destroy_cb(struct afb_xreq *xreq)
-{
- struct subcall *subcall = CONTAINER_OF_XREQ(struct subcall, xreq);
-
- json_object_put(subcall->xreq.json);
- afb_cred_unref(subcall->xreq.cred);
- free(subcall);
-}
-
-const struct afb_xreq_query_itf afb_xreq_subcall_itf = {
- .reply = subcall_reply_cb,
- .unref = subcall_destroy_cb,
- .subscribe = subcall_subscribe_cb,
- .unsubscribe = subcall_unsubscribe_cb
-};
-
-static struct subcall *subcall_alloc(
- struct afb_xreq *caller,
- const char *api,
- const char *verb,
- struct json_object *args
-)
-{
- struct subcall *subcall;
- size_t lenapi, lenverb;
- char *copy;
-
- lenapi = 1 + strlen(api);
- lenverb = 1 + strlen(verb);
- subcall = malloc(lenapi + lenverb + sizeof *subcall);
- if (!subcall)
- ERROR("out of memory");
- else {
- copy = (char*)&subcall[1];
- memcpy(copy, api, lenapi);
- api = copy;
- copy = ©[lenapi];
- memcpy(copy, verb, lenverb);
- verb = copy;
-
- afb_xreq_init(&subcall->xreq, &afb_xreq_subcall_itf);
- afb_context_subinit(&subcall->xreq.context, &caller->context);
- subcall->xreq.cred = afb_cred_addref(caller->cred);
- subcall->xreq.json = args;
- subcall->xreq.request.api = api;
- subcall->xreq.request.verb = verb;
- subcall->xreq.caller = caller;
- afb_xreq_unhooked_addref(caller);
- }
- return subcall;
-}
-
-
-static void subcall_on_reply(struct subcall *subcall, int status, struct json_object *result)
-{
- subcall->callback(subcall->closure, status, result);
-}
-
-static void subcall_req_on_reply(struct subcall *subcall, int status, struct json_object *result)
-{
- subcall->callback_req(subcall->closure, status, result, to_req(subcall->xreq.caller));
-}
-
-static void subcall_request_on_reply(struct subcall *subcall, int status, struct json_object *result)
-{
- subcall->callback_request(subcall->closure, status, result, to_request(subcall->xreq.caller));
-}
-
-static void subcall_hooked_on_reply(struct subcall *subcall, int status, struct json_object *result)
-{
- afb_hook_xreq_subcall_result(subcall->xreq.caller, status, result);
- subcall_on_reply(subcall, status, result);
-}
-
-static void subcall_req_hooked_on_reply(struct subcall *subcall, int status, struct json_object *result)
-{
- afb_hook_xreq_subcall_req_result(subcall->xreq.caller, status, result);
- subcall_req_on_reply(subcall, status, result);
-}
-
-static void subcall_request_hooked_on_reply(struct subcall *subcall, int status, struct json_object *result)
-{
- afb_hook_xreq_subcall_result(subcall->xreq.caller, status, result);
- subcall_request_on_reply(subcall, status, result);
-}
-
-static void subcall_reply_direct_cb(void *closure, int status, struct json_object *result)
-{
- struct afb_xreq *xreq = closure;
-
- if (xreq->replied) {
- ERROR("subcall replied more than one time!!");
- json_object_put(result);
- } else {
- xreq->replied = 1;
- subcall_reply_cb(xreq, status, result);
- }
-}
-
-static void subcall_process(struct subcall *subcall, void (*completion)(struct subcall*, int, struct json_object*))
-{
- subcall->completion = completion;
- if (subcall->xreq.caller->queryitf->subcall) {
- subcall->xreq.caller->queryitf->subcall(
- subcall->xreq.caller, subcall->xreq.request.api, subcall->xreq.request.verb,
- subcall->xreq.json, subcall_reply_direct_cb, &subcall->xreq);
- } else {
- afb_xreq_unhooked_addref(&subcall->xreq);
- afb_xreq_process(&subcall->xreq, subcall->xreq.caller->apiset);
- }
-}
-
-static void subcall(struct subcall *subcall, void (*callback)(void*, int, struct json_object*), void *cb_closure)
-{
- subcall->callback = callback;
- subcall->closure = cb_closure;
- subcall_process(subcall, subcall_on_reply);
-}
-
-static void subcall_req(struct subcall *subcall, void (*callback)(void*, int, struct json_object*, struct afb_req), void *cb_closure)
-{
- subcall->callback_req = callback;
- subcall->closure = cb_closure;
- subcall_process(subcall, subcall_req_on_reply);
-}
-
-static void subcall_request(struct subcall *subcall, void (*callback)(void*, int, struct json_object*, struct afb_request*), void *cb_closure)
-{
- subcall->callback_request = callback;
- subcall->closure = cb_closure;
- subcall_process(subcall, subcall_request_on_reply);
-}
-
-static void subcall_hooked(struct subcall *subcall, void (*callback)(void*, int, struct json_object*), void *cb_closure)
-{
- subcall->callback = callback;
- subcall->closure = cb_closure;
- subcall_process(subcall, subcall_hooked_on_reply);
-}
-
-static void subcall_req_hooked(struct subcall *subcall, void (*callback)(void*, int, struct json_object*, struct afb_req), void *cb_closure)
-{
- subcall->callback_req = callback;
- subcall->closure = cb_closure;
- subcall_process(subcall, subcall_req_hooked_on_reply);
-}
-
-static void subcall_request_hooked(struct subcall *subcall, void (*callback)(void*, int, struct json_object*, struct afb_request*), void *cb_closure)
-{
- subcall->callback_request = callback;
- subcall->closure = cb_closure;
- subcall_process(subcall, subcall_request_hooked_on_reply);
-}
-
-static void subcall_sync_leave(struct subcall *subcall)
-{
- struct jobloop *jobloop = __atomic_exchange_n(&subcall->jobloop, NULL, __ATOMIC_RELAXED);
- if (jobloop)
- jobs_leave(jobloop);
-}
-
-static void subcall_sync_reply(struct subcall *subcall, int status, struct json_object *result)
-{
- subcall->status = status;
- subcall->result = json_object_get(result);
- subcall_sync_leave(subcall);
-}
-
-static void subcall_sync_enter(int signum, void *closure, struct jobloop *jobloop)
-{
- struct subcall *subcall = closure;
-
- if (!signum) {
- subcall->jobloop = jobloop;
- subcall->result = NULL;
- subcall->status = 0;
- subcall_process(subcall, subcall_sync_reply);
- } else {
- subcall->status = -1;
- subcall_sync_leave(subcall);
- }
-}
-
-static int subcallsync(struct subcall *subcall, struct json_object **result)
-{
- int rc;
-
- afb_xreq_unhooked_addref(&subcall->xreq);
- rc = jobs_enter(NULL, 0, subcall_sync_enter, subcall);
- *result = subcall->result;
- if (rc < 0 || subcall->status < 0) {
- *result = *result ?: afb_msg_json_internal_error();
- rc = -1;
- }
- afb_xreq_unhooked_unref(&subcall->xreq);
- return rc;
-}
-
-/******************************************************************************/
-
-static void vinfo(void *first, void *second, const char *fmt, va_list args, void (*fun)(void*,void*,const char*))
-{
- char *info;
- if (fmt == NULL || vasprintf(&info, fmt, args) < 0)
- info = NULL;
- fun(first, second, info);
- free(info);
-}
-
-/******************************************************************************/
-
-static struct json_object *xreq_json_cb(struct afb_request *closure)
-{
- struct afb_xreq *xreq = from_request(closure);