diff options
| -rw-r--r-- | bindings/samples/CMakeLists.txt | 12 | ||||
| -rw-r--r-- | bindings/samples/hello2.c | 541 |
2 files changed, 553 insertions, 0 deletions
diff --git a/bindings/samples/CMakeLists.txt b/bindings/samples/CMakeLists.txt index d4e85e30..e7b96474 100644 --- a/bindings/samples/CMakeLists.txt +++ b/bindings/samples/CMakeLists.txt @@ -104,6 +104,18 @@ INSTALL(TARGETS hi3 LIBRARY DESTINATION ${binding_install_dir}) ################################################## +# hello2 +################################################## +ADD_LIBRARY(hello2 MODULE hello2.c) +SET_TARGET_PROPERTIES(hello2 PROPERTIES + PREFIX "" + LINK_FLAGS "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/export.map" +) +TARGET_LINK_LIBRARIES(hello2 ${link_libraries}) +INSTALL(TARGETS hello2 + LIBRARY DESTINATION ${binding_install_dir}) + +################################################## # hello3 ################################################## ADD_LIBRARY(hello3 MODULE hello3.c) diff --git a/bindings/samples/hello2.c b/bindings/samples/hello2.c new file mode 100644 index 00000000..0aff86b5 --- /dev/null +++ b/bindings/samples/hello2.c @@ -0,0 +1,541 @@ +/* + * Copyright (C) 2015, 2016, 2017 "IoT.bzh" + * Author "Fulup Ar Foll" + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#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> + +static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; + +struct event +{ + struct event *next; + afb_event_t event; + char tag[1]; +}; + +static struct event *events = 0; + +/* searchs the event of tag */ +static struct event *event_get(const char *tag) +{ + struct event *e = events; + while(e && strcmp(e->tag, tag)) + e = e->next; + return e; +} + +/* deletes the event of tag */ +static int event_del(const char *tag) +{ + struct event *e, **p; + + /* check exists */ + e = event_get(tag); + if (!e) return -1; + + /* unlink */ + p = &events; + while(*p != e) p = &(*p)->next; + *p = e->next; + + /* destroys */ + afb_event_unref(e->event); + free(e); + return 0; +} + +/* creates the event of tag */ +static int event_add(const char *tag, const char *name) +{ + struct event *e; + + /* check valid tag */ + e = event_get(tag); + if (e) return -1; + + /* creation */ + e = malloc(strlen(tag) + sizeof *e); + if (!e) return -1; + strcpy(e->tag, tag); + + /* make the event */ + e->event = afb_daemon_make_event(name); + if (!e->event.closure) { free(e); return -1; } + + /* link */ + e->next = events; + events = e; + return 0; +} + +static int event_subscribe(afb_req_t request, const char *tag) +{ + struct event *e; + e = event_get(tag); + return e ? afb_req_subscribe(request, e->event) : -1; +} + +static int event_unsubscribe(afb_req_t request, const char *tag) +{ + struct event *e; + e = event_get(tag); + return e ? afb_req_unsubscribe(request, e->event) : -1; +} + +static int event_push(struct json_object *args, const char *tag) +{ + struct event *e; + e = event_get(tag); + return e ? afb_event_push(e->event, json_object_get(args)) : -1; +} + +static int event_broadcast(struct json_object *args, const char *tag) +{ + struct event *e; + e = event_get(tag); + return e ? afb_event_broadcast(e->event, json_object_get(args)) : -1; +} + +// Sample Generic Ping Debug API +static void ping(afb_req_t 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 (afb_req_t request) +{ + ping(request, json_object_new_string ("Some String"), "pingSample"); +} + +static void pingFail (afb_req_t request) +{ + afb_req_fail(request, "failed", "Ping Binder Daemon fails"); +} + +static void pingNull (afb_req_t request) +{ + ping(request, NULL, "pingNull"); +} + +static void pingBug (afb_req_t request) +{ + ping((afb_req_t){NULL,NULL}, NULL, "pingBug"); +} + +static void pingEvent(afb_req_t request) +{ + json_object *query = afb_req_json(request); + 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 (afb_req_t request) { + json_object *jresp, *embed; + + jresp = json_object_new_object(); + json_object_object_add(jresp, "myString", json_object_new_string ("Some String")); + json_object_object_add(jresp, "myInt", json_object_new_int (1234)); + + embed = json_object_new_object(); + json_object_object_add(embed, "subObjString", json_object_new_string ("Some String")); + json_object_object_add(embed, "subObjInt", json_object_new_int (5678)); + + json_object_object_add(jresp,"eobj", embed); + + ping(request, jresp, "pingJson"); +} + +static void subcallcb (void *prequest, int status, json_object *object) +{ + afb_req_t request = afb_req_unstore(prequest); + if (status < 0) + 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 subcall (afb_req_t 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_req_subcall(request, api, verb, object, subcallcb, afb_req_store(request)); +} + +static void subcallreqcb (void *prequest, int status, json_object *object, afb_req_t request) +{ + if (status < 0) + afb_req_fail(request, "failed", json_object_to_json_string(object)); + else + afb_req_success(request, json_object_get(object), NULL); +} + +static void subcallreq (afb_req_t 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_req_subcall_req(request, api, verb, object, subcallreqcb, NULL); +} + +static void subcallsync (afb_req_t 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 >= 0) + 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_t 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 (afb_req_t 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 (afb_req_t 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 (afb_req_t 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 (afb_req_t 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 status, json_object *object) +{ + afb_req_t request = afb_req_unstore(prequest); + if (status < 0) + 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_t 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_t 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 >= 0) + afb_req_success(request, result, NULL); + else { + afb_req_fail(request, "failed", json_object_to_json_string(result)); + json_object_put(result); + } + } +} + +static void verbose (afb_req_t request) +{ + 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_t 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; + + AFB_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 void broadcast(afb_req_t request) +{ + const char *tag = afb_req_value(request, "tag"); + const char *name = afb_req_value(request, "name"); + const char *data = afb_req_value(request, "data"); + json_object *object = data ? json_tokener_parse(data) : NULL; + + if (tag != NULL) { + pthread_mutex_lock(&mutex); + if (0 > event_broadcast(object, tag)) + afb_req_fail(request, "failed", "broadcast error"); + else + afb_req_success(request, NULL, NULL); + pthread_mutex_unlock(&mutex); + } else if (name != NULL) { + if (0 > afb_daemon_broadcast_event(name, object)) + afb_req_fail(request, "failed", "broadcast error"); + else + afb_req_success(request, NULL, NULL); + } else { + afb_req_fail(request, "failed", "bad arguments"); + } + json_object_put(object); +} + +static void hasperm (afb_req_t request) +{ + const char *perm = afb_req_value(request, "perm"); + if (afb_req_has_permission(request, perm)) + afb_req_success_f(request, NULL, "permission %s granted", perm?:"(null)"); + else + afb_req_fail_f(request, "not-granted", "permission %s NOT granted", perm?:"(null)"); +} + +static void appid (afb_req_t request) +{ + char *aid = afb_req_get_application_id(request); + afb_req_success_f(request, aid ? json_object_new_string(aid) : NULL, "application is %s", aid?:"?"); + free(aid); +} + +static void uid (afb_req_t request) +{ + int uid = afb_req_get_uid(request); + afb_req_success_f(request, json_object_new_int(uid), "uid is %d", uid); +} + +static void closess (afb_req_t request) +{ + afb_req_session_close(request); + afb_req_success(request, NULL, "session closed"); +} + +static void setloa (afb_req_t request) +{ + int loa = json_object_get_int(afb_req_json(request)); + afb_req_session_set_LOA(request, loa); + afb_req_success_f(request, NULL, "LOA set to %d", loa); +} + +static void setctx (afb_req_t request, int force) +{ + struct json_object *x = afb_req_json(request); + afb_req_context_make(request, force, (void*)json_object_get, (void*)json_object_put, x); + afb_req_success_f(request, json_object_get(x), "context set (force = %d)", force); +} + +static void setctxset (afb_req_t request) +{ + setctx(request, 1); +} + +static void setctxif (afb_req_t request) +{ + setctx(request, 0); +} + +static void getctx (afb_req_t request) +{ + struct json_object *x = afb_req_context_make(request, 0, 0, 0, 0); + afb_req_success(request, json_object_get(x), "returning the context"); +} + +static void info (afb_req_t request) +{ + afb_req_success(request, afb_req_get_client_info(request), NULL); +} + +static int preinit() +{ + AFB_NOTICE("hello binding comes to live"); + return 0; +} + +static int init() +{ + AFB_NOTICE("hello binding starting"); + return 0; +} + +static void onevent(const char *event, struct json_object *object) +{ + AFB_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 afb_verb_v2 verbs[]= { + { .verb="ping", .callback=pingSample }, + { .verb="pingfail", .callback=pingFail }, + { .verb="pingnull", .callback=pingNull }, + { .verb="pingbug", .callback=pingBug }, + { .verb="pingJson", .callback=pingJson }, + { .verb="pingevent", .callback=pingEvent }, + { .verb="subcall", .callback=subcall }, + { .verb="subcallreq", .callback=subcallreq }, + { .verb="subcallsync", .callback=subcallsync }, + { .verb="eventadd", .callback=eventadd }, + { .verb="eventdel", .callback=eventdel }, + { .verb="eventsub", .callback=eventsub }, + { .verb="eventunsub", .callback=eventunsub }, + { .verb="eventpush", .callback=eventpush }, + { .verb="call", .callback=call }, + { .verb="callsync", .callback=callsync }, + { .verb="verbose", .callback=verbose }, + { .verb="broadcast", .callback=broadcast }, + { .verb="hasperm", .callback=hasperm }, + { .verb="appid", .callback=appid }, + { .verb="uid", .callback=uid }, + { .verb="exit", .callback=exitnow }, + { .verb="close", .callback=closess }, + { .verb="set-loa", .callback=setloa }, + { .verb="setctx", .callback=setctxset }, + { .verb="setctxif", .callback=setctxif }, + { .verb="getctx", .callback=getctx }, + { .verb="info", .callback=info }, + { .verb=NULL} +}; + +#if !defined(APINAME) +#define APINAME "hello2" +#endif + +const afb_binding_v2 afbBindingV2 = { + .api = APINAME, + .specification = NULL, + .verbs = verbs, + .preinit = preinit, + .init = init, + .onevent = onevent +}; + |