#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
+#include <pthread.h>
+
#include <json-c/json.h>
+#define AFB_BINDING_VERSION 2
#include <afb/afb-binding.h>
-const struct afb_binding_interface *interface;
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
struct event
{
strcpy(e->tag, tag);
/* make the event */
- e->event = afb_daemon_make_event(interface->daemon, name);
+ e->event = afb_daemon_make_event(name);
if (!e->event.closure) { free(e); return -1; }
/* link */
return 0;
}
-static int event_subscribe(struct afb_req request, const char *tag)
+static int event_subscribe(afb_req request, const char *tag)
{
struct event *e;
e = event_get(tag);
return e ? afb_req_subscribe(request, e->event) : -1;
}
-static int event_unsubscribe(struct afb_req request, const char *tag)
+static int event_unsubscribe(afb_req request, const char *tag)
{
struct event *e;
e = event_get(tag);
}
// Sample Generic Ping Debug API
-static void ping(struct afb_req request, json_object *jresp, const char *tag)
+static void ping(afb_req request, json_object *jresp, const char *tag)
{
static int pingcount = 0;
json_object *query = afb_req_json(request);
afb_req_success_f(request, jresp, "Ping Binder Daemon tag=%s count=%d query=%s", tag, ++pingcount, json_object_to_json_string(query));
}
-static void pingSample (struct afb_req request)
+static void pingSample (afb_req request)
{
ping(request, json_object_new_string ("Some String"), "pingSample");
}
-static void pingFail (struct afb_req request)
+static void pingFail (afb_req request)
{
afb_req_fail(request, "failed", "Ping Binder Daemon fails");
}
-static void pingNull (struct afb_req request)
+static void pingNull (afb_req request)
{
ping(request, NULL, "pingNull");
}
-static void pingBug (struct afb_req request)
+static void pingBug (afb_req request)
{
- ping((struct afb_req){NULL,NULL}, NULL, "pingBug");
+ ping((afb_req){NULL,NULL}, NULL, "pingBug");
}
-static void pingEvent(struct afb_req request)
+static void pingEvent(afb_req request)
{
json_object *query = afb_req_json(request);
- afb_daemon_broadcast_event(interface->daemon, "event", json_object_get(query));
+ afb_daemon_broadcast_event("event", json_object_get(query));
ping(request, json_object_get(query), "event");
}
// For samples https://linuxprograms.wordpress.com/2010/05/20/json-c-libjson-tutorial/
-static void pingJson (struct afb_req request) {
+static void pingJson (afb_req request) {
json_object *jresp, *embed;
jresp = json_object_new_object();
static void subcallcb (void *prequest, int iserror, json_object *object)
{
- struct afb_req request = afb_req_unstore(prequest);
+ afb_req request = afb_req_unstore(prequest);
if (iserror)
afb_req_fail(request, "failed", json_object_to_json_string(object));
else
- afb_req_success(request, object, NULL);
+ afb_req_success(request, json_object_get(object), NULL);
afb_req_unref(request);
}
-static void subcall (struct afb_req request)
+static void subcall (afb_req request)
{
const char *api = afb_req_value(request, "api");
const char *verb = afb_req_value(request, "verb");
afb_req_subcall(request, api, verb, object, subcallcb, afb_req_store(request));
}
-static void eventadd (struct afb_req request)
+static void subcallsync (afb_req request)
+{
+ int rc;
+ const char *api = afb_req_value(request, "api");
+ const char *verb = afb_req_value(request, "verb");
+ const char *args = afb_req_value(request, "args");
+ json_object *result, *object = api && verb && args ? json_tokener_parse(args) : NULL;
+
+ if (object == NULL)
+ afb_req_fail(request, "failed", "bad arguments");
+ else {
+ rc = afb_req_subcall_sync(request, api, verb, object, &result);
+ if (rc)
+ afb_req_success(request, result, NULL);
+ else {
+ afb_req_fail(request, "failed", json_object_to_json_string(result));
+ json_object_put(result);
+ }
+ }
+}
+
+static void eventadd (afb_req request)
{
const char *tag = afb_req_value(request, "tag");
const char *name = afb_req_value(request, "name");
+ pthread_mutex_lock(&mutex);
if (tag == NULL || name == NULL)
afb_req_fail(request, "failed", "bad arguments");
else if (0 != event_add(tag, name))
afb_req_fail(request, "failed", "creation error");
else
afb_req_success(request, NULL, NULL);
+ pthread_mutex_unlock(&mutex);
}
-static void eventdel (struct afb_req request)
+static void eventdel (afb_req request)
{
const char *tag = afb_req_value(request, "tag");
+ pthread_mutex_lock(&mutex);
if (tag == NULL)
afb_req_fail(request, "failed", "bad arguments");
else if (0 != event_del(tag))
afb_req_fail(request, "failed", "deletion error");
else
afb_req_success(request, NULL, NULL);
+ pthread_mutex_unlock(&mutex);
}
-static void eventsub (struct afb_req request)
+static void eventsub (afb_req request)
{
const char *tag = afb_req_value(request, "tag");
+ pthread_mutex_lock(&mutex);
if (tag == NULL)
afb_req_fail(request, "failed", "bad arguments");
else if (0 != event_subscribe(request, tag))
afb_req_fail(request, "failed", "subscription error");
else
afb_req_success(request, NULL, NULL);
+ pthread_mutex_unlock(&mutex);
}
-static void eventunsub (struct afb_req request)
+static void eventunsub (afb_req request)
{
const char *tag = afb_req_value(request, "tag");
+ pthread_mutex_lock(&mutex);
if (tag == NULL)
afb_req_fail(request, "failed", "bad arguments");
else if (0 != event_unsubscribe(request, tag))
afb_req_fail(request, "failed", "unsubscription error");
else
afb_req_success(request, NULL, NULL);
+ pthread_mutex_unlock(&mutex);
}
-static void eventpush (struct afb_req request)
+static void eventpush (afb_req request)
{
const char *tag = afb_req_value(request, "tag");
const char *data = afb_req_value(request, "data");
json_object *object = data ? json_tokener_parse(data) : NULL;
+ pthread_mutex_lock(&mutex);
if (tag == NULL)
afb_req_fail(request, "failed", "bad arguments");
else if (0 > event_push(object, tag))
afb_req_fail(request, "failed", "push error");
else
afb_req_success(request, NULL, NULL);
+ pthread_mutex_unlock(&mutex);
+ json_object_put(object);
+}
+
+static void callcb (void *prequest, int iserror, json_object *object)
+{
+ afb_req request = afb_req_unstore(prequest);
+ if (iserror)
+ afb_req_fail(request, "failed", json_object_to_json_string(object));
+ else
+ afb_req_success(request, json_object_get(object), NULL);
+ afb_req_unref(request);
+}
+
+static void call (afb_req request)
+{
+ const char *api = afb_req_value(request, "api");
+ const char *verb = afb_req_value(request, "verb");
+ const char *args = afb_req_value(request, "args");
+ json_object *object = api && verb && args ? json_tokener_parse(args) : NULL;
+
+ if (object == NULL)
+ afb_req_fail(request, "failed", "bad arguments");
+ else
+ afb_service_call(api, verb, object, callcb, afb_req_store(request));
+}
+
+static void callsync (afb_req request)
+{
+ int rc;
+ const char *api = afb_req_value(request, "api");
+ const char *verb = afb_req_value(request, "verb");
+ const char *args = afb_req_value(request, "args");
+ json_object *result, *object = api && verb && args ? json_tokener_parse(args) : NULL;
+
+ if (object == NULL)
+ afb_req_fail(request, "failed", "bad arguments");
+ else {
+ rc = afb_service_call_sync(api, verb, object, &result);
+ if (rc)
+ afb_req_success(request, result, NULL);
+ else {
+ afb_req_fail(request, "failed", json_object_to_json_string(result));
+ json_object_put(result);
+ }
+ }
}
-static void exitnow (struct afb_req request)
+static void verbose (afb_req request)
{
- exit(0);
+ int level = 5;
+ json_object *query = afb_req_json(request), *l;
+
+ if (json_object_is_type(query,json_type_int))
+ level = json_object_get_int(query);
+ else if (json_object_object_get_ex(query, "level", &l) && json_object_is_type(l, json_type_int))
+ level = json_object_get_int(l);
+
+ if (!json_object_object_get_ex(query,"message",&l))
+ l = query;
+
+ AFB_REQ_VERBOSE(request, level, "verbose called for %s", json_object_get_string(l));
+ afb_req_success(request, NULL, NULL);
+}
+
+static void exitnow (afb_req request)
+{
+ int code = 0;
+ json_object *query = afb_req_json(request), *l;
+
+ if (json_object_is_type(query,json_type_int))
+ code = json_object_get_int(query);
+ else if (json_object_object_get_ex(query, "code", &l) && json_object_is_type(l, json_type_int))
+ code = json_object_get_int(l);
+
+ if (!json_object_object_get_ex(query,"reason",&l))
+ l = NULL;
+
+ REQ_NOTICE(request, "in phase of exiting with code %d, reason: %s", code, l ? json_object_get_string(l) : "unknown");
+ afb_req_success(request, NULL, NULL);
+ exit(code);
+}
+
+static int preinit()
+{
+ NOTICE("hello binding comes to live");
+ return 0;
+}
+
+static int init()
+{
+ NOTICE("hello binding starting");
+ return 0;
+}
+
+static void onevent(const char *event, struct json_object *object)
+{
+ NOTICE("received event %s(%s)", event, json_object_to_json_string(object));
}
// NOTE: this sample does not use session to keep test a basic as possible
// in real application most APIs should be protected with AFB_SESSION_CHECK
-static const struct afb_verb_desc_v1 verbs[]= {
- {"ping" , AFB_SESSION_NONE, pingSample , "Ping Application Framework"},
- {"pingfail" , AFB_SESSION_NONE, pingFail , "Fails"},
- {"pingnull" , AFB_SESSION_NONE, pingNull , "Return NULL"},
- {"pingbug" , AFB_SESSION_NONE, pingBug , "Do a Memory Violation"},
- {"pingJson" , AFB_SESSION_NONE, pingJson , "Return a JSON object"},
- {"pingevent", AFB_SESSION_NONE, pingEvent , "Send an event"},
- {"subcall", AFB_SESSION_NONE, subcall , "Call api/verb(args)"},
- {"eventadd", AFB_SESSION_NONE, eventadd , "adds the event of 'name' for the 'tag'"},
- {"eventdel", AFB_SESSION_NONE, eventdel , "deletes the event of 'tag'"},
- {"eventsub", AFB_SESSION_NONE, eventsub , "subscribes to the event of 'tag'"},
- {"eventunsub",AFB_SESSION_NONE, eventunsub , "unsubscribes to the event of 'tag'"},
- {"eventpush", AFB_SESSION_NONE, eventpush , "pushs the event of 'tag' with the 'data'"},
- {"exit", AFB_SESSION_NONE, exitnow , "exits from afb-daemon"},
- {NULL}
+static const afb_verb_v2 verbs[]= {
+ { "ping" , pingSample , NULL, AFB_SESSION_NONE },
+ { "pingfail" , pingFail , NULL, AFB_SESSION_NONE },
+ { "pingnull" , pingNull , NULL, AFB_SESSION_NONE },
+ { "pingbug" , pingBug , NULL, AFB_SESSION_NONE },
+ { "pingJson" , pingJson , NULL, AFB_SESSION_NONE },
+ { "pingevent", pingEvent , NULL, AFB_SESSION_NONE },
+ { "subcall", subcall , NULL, AFB_SESSION_NONE },
+ { "subcallsync", subcallsync, NULL, AFB_SESSION_NONE },
+ { "eventadd", eventadd , NULL, AFB_SESSION_NONE },
+ { "eventdel", eventdel , NULL, AFB_SESSION_NONE },
+ { "eventsub", eventsub , NULL, AFB_SESSION_NONE },
+ { "eventunsub", eventunsub , NULL, AFB_SESSION_NONE },
+ { "eventpush", eventpush , NULL, AFB_SESSION_NONE },
+ { "call", call , NULL, AFB_SESSION_NONE },
+ { "callsync", callsync , NULL, AFB_SESSION_NONE },
+ { "verbose", verbose , NULL, AFB_SESSION_NONE },
+ { "exit", exitnow , NULL, AFB_SESSION_NONE },
+ { NULL}
};
-static const struct afb_binding plugin_desc = {
- .type = AFB_BINDING_VERSION_1,
- .v1 = {
- .info = "Minimal Hello World Sample",
- .prefix = "hello",
- .verbs = verbs
- }
+const afb_binding_v2 afbBindingV2 = {
+ .api = "hello",
+ .specification = NULL,
+ .verbs = verbs,
+ .preinit = preinit,
+ .init = init,
+ .onevent = onevent
};
-const struct afb_binding *afbBindingV1Register (const struct afb_binding_interface *itf)
-{
- interface = itf;
- return &plugin_desc;
-}