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@media only all and (prefers-color-scheme: dark) {
.highlight .hll { background-color: #49483e }
.highlight .c { color: #75715e } /* Comment */
.highlight .err { color: #960050; background-color: #1e0010 } /* Error */
.highlight .k { color: #66d9ef } /* Keyword */
.highlight .l { color: #ae81ff } /* Literal */
.highlight .n { color: #f8f8f2 } /* Name */
.highlight .o { color: #f92672 } /* Operator */
.highlight .p { color: #f8f8f2 } /* Punctuation */
.highlight .ch { color: #75715e } /* Comment.Hashbang */
.highlight .cm { color: #75715e } /* Comment.Multiline */
.highlight .cp { color: #75715e } /* Comment.Preproc */
.highlight .cpf { color: #75715e } /* Comment.PreprocFile */
.highlight .c1 { color: #75715e } /* Comment.Single */
.highlight .cs { color: #75715e } /* Comment.Special */
.highlight .gd { color: #f92672 } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gi { color: #a6e22e } /* Generic.Inserted */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #75715e } /* Generic.Subheading */
.highlight .kc { color: #66d9ef } /* Keyword.Constant */
.highlight .kd { color: #66d9ef } /* Keyword.Declaration */
.highlight .kn { color: #f92672 } /* Keyword.Namespace */
.highlight .kp { color: #66d9ef } /* Keyword.Pseudo */
.highlight .kr { color: #66d9ef } /* Keyword.Reserved */
.highlight .kt { color: #66d9ef } /* Keyword.Type */
.highlight .ld { color: #e6db74 } /* Literal.Date */
.highlight .m { color: #ae81ff } /* Literal.Number */
.highlight .s { color: #e6db74 } /* Literal.String */
.highlight .na { color: #a6e22e } /* Name.Attribute */
.highlight .nb { color: #f8f8f2 } /* Name.Builtin */
.highlight .nc { color: #a6e22e } /* Name.Class */
.highlight .no { color: #66d9ef } /* Name.Constant */
.highlight .nd { color: #a6e22e } /* Name.Decorator */
.highlight .ni { color: #f8f8f2 } /* Name.Entity */
.highlight .ne { color: #a6e22e } /* Name.Exception */
.highlight .nf { color: #a6e22e } /* Name.Function */
.highlight .nl { color: #f8f8f2 } /* Name.Label */
.highlight .nn { color: #f8f8f2 } /* Name.Namespace */
.highlight .nx { color: #a6e22e } /* Name.Other */
.highlight .py { color: #f8f8f2 } /* Name.Property */
.highlight .nt { color: #f92672 } /* Name.Tag */
.highlight .nv { color: #f8f8f2 } /* Name.Variable */
.highlight .ow { color: #f92672 } /* Operator.Word */
.highlight .w { color: #f8f8f2 } /* Text.Whitespace */
.highlight .mb { color: #ae81ff } /* Literal.Number.Bin */
.highlight .mf { color: #ae81ff } /* Literal.Number.Float */
.highlight .mh { color: #ae81ff } /* Literal.Number.Hex */
.highlight .mi { color: #ae81ff } /* Literal.Number.Integer */
.highlight .mo { color: #ae81ff } /* Literal.Number.Oct */
.highlight .sa { color: #e6db74 } /* Literal.String.Affix */
.highlight .sb { color: #e6db74 } /* Literal.String.Backtick */
.highlight .sc { color: #e6db74 } /* Literal.String.Char */
.highlight .dl { color: #e6db74 } /* Literal.String.Delimiter */
.highlight .sd { color: #e6db74 } /* Literal.String.Doc */
.highlight .s2 { color: #e6db74 } /* Literal.String.Double */
.highlight .se { color: #ae81ff } /* Literal.String.Escape */
.highlight .sh { color: #e6db74 } /* Literal.String.Heredoc */
.highlight .si { color: #e6db74 } /* Literal.String.Interpol */
.highlight .sx { color: #e6db74 } /* Literal.String.Other */
.highlight .sr { color: #e6db74 } /* Literal.String.Regex */
.highlight .s1 { color: #e6db74 } /* Literal.String.Single */
.highlight .ss { color: #e6db74 } /* Literal.String.Symbol */
.highlight .bp { color: #f8f8f2 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #a6e22e } /* Name.Function.Magic */
.highlight .vc { color: #f8f8f2 } /* Name.Variable.Class */
.highlight .vg { color: #f8f8f2 } /* Name.Variable.Global */
.highlight .vi { color: #f8f8f2 } /* Name.Variable.Instance */
.highlight .vm { color: #f8f8f2 } /* Name.Variable.Magic */
.highlight .il { color: #ae81ff } /* Literal.Number.Integer.Long */
}
@media (prefers-color-scheme: light) {
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f/*
* Copyright (C) 2015, 2016 "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 <json-c/json.h>
#include <afb/afb-binding.h>
const struct afb_binding_interface *interface;
struct event
{
struct event *next;
struct afb_event 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_drop(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(interface->daemon, name);
if (!e->event.closure) { free(e); return -1; }
/* link */
e->next = events;
events = e;
return 0;
}
static int event_subscribe(struct 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)
{
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;
}
// Sample Generic Ping Debug API
static void ping(struct 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)
{
ping(request, json_object_new_string ("Some String"), "pingSample");
}
static void pingFail (struct afb_req request)
{
afb_req_fail(request, "failed", "Ping Binder Daemon fails");
}
static void pingNull (struct afb_req request)
{
ping(request, NULL, "pingNull");
}
static void pingBug (struct afb_req request)
{
ping((struct afb_req){NULL,NULL}, NULL, "pingBug");
}
static void pingEvent(struct afb_req request)
{
json_object *query = afb_req_json(request);
afb_daemon_broadcast_event(interface->daemon, "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) {
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 iserror, json_object *object)
{
struct 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_unref(request);
}
static void subcall (struct 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_req_subcall(request, api, verb, object, subcallcb, afb_req_store(request));
}
static void eventadd (struct afb_req request)
{
const char *tag = afb_req_value(request, "tag");
const char *name = afb_req_value(request, "name");
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);
}
static void eventdel (struct afb_req request)
{
const char *tag = afb_req_value(request, "tag");
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);
}
static void eventsub (struct afb_req request)
{
const char *tag = afb_req_value(request, "tag");
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);
}
static void eventunsub (struct afb_req request)
{
const char *tag = afb_req_value(request, "tag");
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);
}
static void eventpush (struct 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;
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);
}
// 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'"},
{NULL}
};
static const struct afb_binding plugin_desc = {
.type = AFB_BINDING_VERSION_1,
.v1 = {
.info = "Minimal Hello World Sample",
.prefix = "hello",
.verbs = verbs
}
};
const struct afb_binding *afbBindingV1Register (const struct afb_binding_interface *itf)
{
interface = itf;
return &plugin_desc;
}
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