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-rw-r--r--include/afb/c++/binding-wrap.hpp692
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diff --git a/include/afb/c++/binding-wrap.hpp b/include/afb/c++/binding-wrap.hpp
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+/*
+ * Copyright (C) 2016-2019 "IoT.bzh"
+ * Author: José Bollo <jose.bollo@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <cstddef>
+#include <cstdlib>
+#include <cstdarg>
+#include <functional>
+
+/* ensure version */
+#ifndef AFB_BINDING_VERSION
+# define AFB_BINDING_VERSION 3
+#endif
+
+/* check the version */
+#if AFB_BINDING_VERSION < 2
+# error "AFB_BINDING_VERSION must be at least 2 but 3 is prefered"
+#endif
+
+/* get C definitions of bindings */
+extern "C" {
+#include "afb-binding.h"
+}
+
+namespace afb {
+/*************************************************************************/
+/* pre-declaration of classes */
+/*************************************************************************/
+
+class arg;
+class event;
+class req;
+
+/*************************************************************************/
+/* declaration of functions */
+/*************************************************************************/
+
+int broadcast_event(const char *name, json_object *object = nullptr);
+
+event make_event(const char *name);
+
+void verbose(int level, const char *file, int line, const char * func, const char *fmt, va_list args);
+
+void verbose(int level, const char *file, int line, const char * func, const char *fmt, ...);
+
+int rootdir_get_fd();
+
+int rootdir_open_locale_fd(const char *filename, int flags, const char *locale = nullptr);
+
+int queue_job(void (*callback)(int signum, void *arg), void *argument, void *group, int timeout);
+
+int require_api(const char *apiname, bool initialized = true);
+
+int add_alias(const char *apiname, const char *aliasname);
+
+int verbosity();
+
+bool wants_errors();
+bool wants_warnings();
+bool wants_notices();
+bool wants_infos();
+bool wants_debugs();
+
+#if AFB_BINDING_VERSION >= 3
+void call(const char *api, const char *verb, struct json_object *args, void (*callback)(void*closure, int iserror, struct json_object *result, afb_api_t api), void *closure);
+
+template <class T> void call(const char *api, const char *verb, struct json_object *args, void (*callback)(T*closure, int iserror, struct json_object *result, afb_api_t api), T *closure);
+
+bool callsync(const char *api, const char *verb, struct json_object *args, struct json_object *&result);
+#else
+void call(const char *api, const char *verb, struct json_object *args, void (*callback)(void*closure, int iserror, struct json_object *result), void *closure);
+
+template <class T> void call(const char *api, const char *verb, struct json_object *args, void (*callback)(T*closure, int iserror, struct json_object *result), T *closure);
+#endif
+
+bool callsync(const char *api, const char *verb, struct json_object *args, struct json_object *&result);
+
+/*************************************************************************/
+/* effective declaration of classes */
+/*************************************************************************/
+
+/* events */
+class event
+{
+ afb_event_t event_;
+public:
+ event() { invalidate(); }
+ event(afb_event_t e);
+ event(const event &other);
+ event &operator=(const event &other);
+
+ operator afb_event_t() const;
+ afb_event_t operator->() const;
+
+ operator bool() const;
+ bool is_valid() const;
+
+ void invalidate();
+
+ int broadcast(json_object *object) const;
+ int push(json_object *object) const;
+
+ void unref();
+ void addref();
+ const char *name() const;
+};
+
+/* args */
+class arg
+{
+ struct afb_arg arg_;
+public:
+ arg() = delete;
+ arg(const struct afb_arg &a);
+ arg(const arg &other);
+ arg &operator=(const arg &other);
+
+ operator const struct afb_arg&() const;
+
+ bool has_name() const;
+ bool has_value() const;
+ bool has_path() const;
+
+ const char *name() const;
+ const char *value() const;
+ const char *path() const;
+};
+
+/* req(uest) */
+class req
+{
+ afb_req_t req_;
+
+public:
+ req() = delete;
+ req(afb_req_t r);
+ req(const req &other);
+ req &operator=(const req &other);
+
+ operator afb_req_t() const;
+ afb_req_t operator->() const;
+
+ operator bool() const;
+ bool is_valid() const;
+
+ arg get(const char *name) const;
+
+ const char *value(const char *name) const;
+
+ const char *path(const char *name) const;
+
+ json_object *json() const;
+
+ void reply(json_object *obj = nullptr, const char *error = nullptr, const char *info = nullptr) const;
+ void replyf(json_object *obj, const char *error, const char *info, ...) const;
+ void replyv(json_object *obj, const char *error, const char *info, va_list args) const;
+
+ void success(json_object *obj = nullptr, const char *info = nullptr) const;
+ void successf(json_object *obj, const char *info, ...) const;
+ void successv(json_object *obj, const char *info, va_list args) const;
+
+ void fail(const char *error = "failed", const char *info = nullptr) const;
+ void failf(const char *error, const char *info, ...) const;
+ void failv(const char *error, const char *info, va_list args) const;
+
+ template < class T > T *context() const;
+
+ void addref() const;
+
+ void unref() const;
+
+ void session_close() const;
+
+ bool session_set_LOA(unsigned level) const;
+
+ bool subscribe(const event &event) const;
+
+ bool unsubscribe(const event &event) const;
+
+ void subcall(const char *api, const char *verb, json_object *args, void (*callback)(void *closure, int iserror, json_object *result, afb_req_t req), void *closure) const;
+ template <class T> void subcall(const char *api, const char *verb, json_object *args, void (*callback)(T *closure, int iserror, json_object *result, afb_req_t req), T *closure) const;
+
+ bool subcallsync(const char *api, const char *verb, json_object *args, struct json_object *&result) const;
+
+#if AFB_BINDING_VERSION >= 3
+ void subcall(const char *api, const char *verb, json_object *args, int flags, void (*callback)(void *closure, json_object *object, const char *error, const char *info, afb_req_t req), void *closure) const;
+
+ template <class T> void subcall(const char *api, const char *verb, json_object *args, int flags, void (*callback)(T *closure, json_object *object, const char *error, const char *info, afb_req_t req), T *closure) const;
+
+ bool subcallsync(const char *api, const char *verb, json_object *args, int flags, struct json_object *&object, char *&error, char *&info) const;
+#endif
+
+ void verbose(int level, const char *file, int line, const char * func, const char *fmt, va_list args) const;
+
+ void verbose(int level, const char *file, int line, const char * func, const char *fmt, ...) const;
+
+ bool has_permission(const char *permission) const;
+
+ char *get_application_id() const;
+
+ int get_uid() const;
+
+ json_object *get_client_info() const;
+};
+
+/*************************************************************************/
+/* effective declaration of classes */
+/*************************************************************************/
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////////////////////////////
+
+
+/*************************************************************************/
+/* effective declaration of classes */
+/*************************************************************************/
+
+/* events */
+inline event::event(afb_event_t e) : event_(e) { }
+inline event::event(const event &other) : event_(other.event_) { }
+inline event &event::operator=(const event &other) { event_ = other.event_; return *this; }
+
+inline event::operator afb_event_t() const { return event_; }
+inline afb_event_t event::operator->() const { return event_; }
+
+inline event::operator bool() const { return is_valid(); }
+inline bool event::is_valid() const { return afb_event_is_valid(event_); }
+
+#if AFB_BINDING_VERSION >= 3
+inline void event::invalidate() { event_ = nullptr; }
+#else
+inline void event::invalidate() { event_ = { nullptr, nullptr }; }
+#endif
+
+inline int event::broadcast(json_object *object) const { return afb_event_broadcast(event_, object); }
+inline int event::push(json_object *object) const { return afb_event_push(event_, object); }
+
+inline void event::unref() { afb_event_unref(event_); invalidate(); }
+inline void event::addref() { afb_event_addref(event_); }
+inline const char *event::name() const { return afb_event_name(event_); }
+
+/* args */
+inline arg::arg(const struct afb_arg &a) : arg_(a) {}
+inline arg::arg(const arg &other) : arg_(other.arg_) {}
+inline arg &arg::operator=(const arg &other) { arg_ = other.arg_; return *this; }
+
+inline arg::operator const struct afb_arg&() const { return arg_; }
+
+inline bool arg::has_name() const { return !!arg_.name; }
+inline bool arg::has_value() const { return !!arg_.value; }
+inline bool arg::has_path() const { return !!arg_.path; }
+
+inline const char *arg::name() const { return arg_.name; }
+inline const char *arg::value() const { return arg_.value; }
+inline const char *arg::path() const { return arg_.path; }
+
+/* req(uests)s */
+
+
+inline req::req(afb_req_t r) : req_(r) {}
+inline req::req(const req &other) : req_(other.req_) {}
+inline req &req::operator=(const req &other) { req_ = other.req_; return *this; }
+
+inline req::operator afb_req_t() const { return req_; }
+inline afb_req_t req::operator->() const { return req_; }
+
+inline req::operator bool() const { return is_valid(); }
+inline bool req::is_valid() const { return afb_req_is_valid(req_); }
+
+inline arg req::get(const char *name) const { return arg(afb_req_get(req_, name)); }
+
+inline const char *req::value(const char *name) const { return afb_req_value(req_, name); }
+
+inline const char *req::path(const char *name) const { return afb_req_path(req_, name); }
+
+inline json_object *req::json() const { return afb_req_json(req_); }
+
+inline void req::reply(json_object *obj, const char *error, const char *info) const { afb_req_reply(req_, obj, error, info); }
+inline void req::replyv(json_object *obj, const char *error, const char *info, va_list args) const { afb_req_reply_v(req_, obj, error, info, args); }
+inline void req::replyf(json_object *obj, const char *error, const char *info, ...) const
+{
+ va_list args;
+ va_start(args, info);
+ replyv(obj, error, info, args);
+ va_end(args);
+}
+
+inline void req::success(json_object *obj, const char *info) const { reply(obj, nullptr, info); }
+inline void req::successv(json_object *obj, const char *info, va_list args) const { replyv(obj, nullptr, info, args); }
+inline void req::successf(json_object *obj, const char *info, ...) const
+{
+ va_list args;
+ va_start(args, info);
+ successv(obj, info, args);
+ va_end(args);
+}
+
+inline void req::fail(const char *error, const char *info) const { reply(nullptr, error, info); }
+inline void req::failv(const char *error, const char *info, va_list args) const { replyv(nullptr, error, info, args); }
+inline void req::failf(const char *error, const char *info, ...) const
+{
+ va_list args;
+ va_start(args, info);
+ failv(error, info, args);
+ va_end(args);
+}
+
+template < class T >
+inline T *req::context() const
+{
+#if AFB_BINDING_VERSION >= 3
+ T* (*creater)(void*) = [](){return new T();};
+ void (*freer)(T*) = [](T*t){delete t;};
+ return reinterpret_cast<T*>(afb_req_context(req_, 0,
+ reinterpret_cast<void *(*)(void*)>(creater),
+ reinterpret_cast<void (*)(void*)>(freer), nullptr));
+#else
+ T* (*creater)() = [](){return new T();};
+ void (*freer)(T*) = [](T*t){delete t;};
+ return reinterpret_cast<T*>(afb_req_context(req_,
+ reinterpret_cast<void *(*)()>(creater),
+ reinterpret_cast<void (*)(void*)>(freer)));
+#endif
+}
+
+inline void req::addref() const { afb_req_addref(req_); }
+
+inline void req::unref() const { afb_req_unref(req_); }
+
+inline void req::session_close() const { afb_req_session_close(req_); }
+
+inline bool req::session_set_LOA(unsigned level) const { return !afb_req_session_set_LOA(req_, level); }
+
+inline bool req::subscribe(const event &event) const { return !afb_req_subscribe(req_, event); }
+
+inline bool req::unsubscribe(const event &event) const { return !afb_req_unsubscribe(req_, event); }
+
+
+
+
+
+#if AFB_BINDING_VERSION >= 3
+
+inline void req::subcall(const char *api, const char *verb, json_object *args, int flags, void (*callback)(void *closure, json_object *result, const char *error, const char *info, afb_req_t req), void *closure) const
+{
+ afb_req_subcall(req_, api, verb, args, flags, callback, closure);
+}
+
+template <class T>
+inline void req::subcall(const char *api, const char *verb, json_object *args, int flags, void (*callback)(T *closure, json_object *result, const char *error, const char *info, afb_req_t req), T *closure) const
+{
+ subcall(api, verb, args, flags, reinterpret_cast<void(*)(void*,json_object*,const char*,const char*,afb_req_t)>(callback), reinterpret_cast<void*>(closure));
+}
+
+inline bool req::subcallsync(const char *api, const char *verb, json_object *args, int flags, struct json_object *&object, char *&error, char *&info) const
+{
+ return !afb_req_subcall_sync(req_, api, verb, args, flags, &object, &error, &info);
+}
+
+#endif
+
+inline void req::subcall(const char *api, const char *verb, json_object *args, void (*callback)(void *closure, int iserror, json_object *result, afb_req_t req), void *closure) const
+{
+#if AFB_BINDING_VERSION >= 3
+ afb_req_subcall_legacy(req_, api, verb, args, callback, closure);
+#else
+ afb_req_subcall_req(req_, api, verb, args, callback, closure);
+#endif
+}
+
+template <class T>
+inline void req::subcall(const char *api, const char *verb, json_object *args, void (*callback)(T *closure, int iserror, json_object *result, afb_req_t req), T *closure) const
+{
+ subcall(api, verb, args, reinterpret_cast<void(*)(void*,int,json_object*,afb_req_t)>(callback), reinterpret_cast<void*>(closure));
+}
+
+inline bool req::subcallsync(const char *api, const char *verb, json_object *args, struct json_object *&result) const
+{
+#if AFB_BINDING_VERSION >= 3
+ return !afb_req_subcall_sync_legacy(req_, api, verb, args, &result);
+#else
+ return !afb_req_subcall_sync(req_, api, verb, args, &result);
+#endif
+}
+
+inline void req::verbose(int level, const char *file, int line, const char * func, const char *fmt, va_list args) const
+{
+ afb_req_verbose(req_, level, file, line, func, fmt, args);
+}
+
+inline void req::verbose(int level, const char *file, int line, const char * func, const char *fmt, ...) const
+{
+ va_list args;
+ va_start(args, fmt);
+ afb_req_verbose(req_, level, file, line, func, fmt, args);
+ va_end(args);
+}
+
+inline bool req::has_permission(const char *permission) const
+{
+ return bool(afb_req_has_permission(req_, permission));
+}
+
+inline char *req::get_application_id() const
+{
+ return afb_req_get_application_id(req_);
+}
+
+inline int req::get_uid() const
+{
+ return afb_req_get_uid(req_);
+}
+
+inline json_object *req::get_client_info() const
+{
+ return afb_req_get_client_info(req_);
+}
+
+/* commons */
+inline int broadcast_event(const char *name, json_object *object)
+ { return afb_daemon_broadcast_event(name, object); }
+
+inline event make_event(const char *name)
+ { return afb_daemon_make_event(name); }
+
+inline void verbose(int level, const char *file, int line, const char * func, const char *fmt, va_list args)
+ { afb_daemon_verbose(level, file, line, func, fmt, args); }
+
+inline void verbose(int level, const char *file, int line, const char * func, const char *fmt, ...)
+ { va_list args; va_start(args, fmt); verbose(level, file, line, func, fmt, args); va_end(args); }
+
+inline int rootdir_get_fd()
+ { return afb_daemon_rootdir_get_fd(); }
+
+inline int rootdir_open_locale_fd(const char *filename, int flags, const char *locale)
+ { return afb_daemon_rootdir_open_locale(filename, flags, locale); }
+
+inline int queue_job(void (*callback)(int signum, void *arg), void *argument, void *group, int timeout)
+ { return afb_daemon_queue_job(callback, argument, group, timeout); }
+
+inline int require_api(const char *apiname, bool initialized)
+ { return afb_daemon_require_api(apiname, int(initialized)); }
+
+inline int add_alias(const char *apiname, const char *aliasname)
+ { return afb_daemon_add_alias(apiname, aliasname); }
+
+#if AFB_BINDING_VERSION >= 3
+inline int logmask()
+ { return afb_get_logmask(); }
+#else
+inline int logmask()
+ { return (1 << (1 + afb_get_verbosity() + AFB_SYSLOG_LEVEL_ERROR)) - 1; }
+#endif
+
+inline bool wants_errors()
+ { return AFB_SYSLOG_MASK_WANT_ERROR(logmask()); }
+
+inline bool wants_warnings()
+ { return AFB_SYSLOG_MASK_WANT_WARNING(logmask()); }
+
+inline bool wants_notices()
+ { return AFB_SYSLOG_MASK_WANT_NOTICE(logmask()); }
+
+inline bool wants_infos()
+ { return AFB_SYSLOG_MASK_WANT_INFO(logmask()); }
+
+inline bool wants_debugs()
+ { return AFB_SYSLOG_MASK_WANT_DEBUG(logmask()); }
+
+#if AFB_BINDING_VERSION >= 3
+inline void call(const char *api, const char *verb, struct json_object *args, void (*callback)(void*closure, struct json_object *result, const char *error, const char *info, afb_api_t api), void *closure)
+{
+ afb_service_call(api, verb, args, callback, closure);
+}
+
+template <class T>
+inline void call(const char *api, const char *verb, struct json_object *args, void (*callback)(T*closure, struct json_object *result, const char *error, const char *info, afb_api_t api), T *closure)
+{
+ afb_service_call(api, verb, args, reinterpret_cast<void(*)(void*,int,json_object*,afb_api_t)>(callback), reinterpret_cast<void*>(closure));
+}
+
+inline bool callsync(const char *api, const char *verb, struct json_object *args, struct json_object *&result, char *&error, char *&info)
+{
+ return !!afb_service_call_sync(api, verb, args, &result, &error, &info);
+}
+#else
+inline void call(const char *api, const char *verb, struct json_object *args, void (*callback)(void*closure, int iserror, struct json_object *result), void *closure)
+{
+ afb_service_call(api, verb, args, callback, closure);
+}
+
+template <class T>
+inline void call(const char *api, const char *verb, struct json_object *args, void (*callback)(T*closure, int iserror, struct json_object *result), T *closure)
+{
+ afb_service_call(api, verb, args, reinterpret_cast<void(*)(void*,int,json_object*)>(callback), reinterpret_cast<void*>(closure));
+}
+
+inline bool callsync(const char *api, const char *verb, struct json_object *args, struct json_object *&result)
+{
+ return !!afb_service_call_sync(api, verb, args, &result);
+}
+#endif
+
+/*************************************************************************/
+/* declaration of the binding's authorization s */
+/*************************************************************************/
+
+constexpr afb_auth auth_no()
+{
+ afb_auth r = { afb_auth_No, 0, 0};
+ r.type = afb_auth_No;
+ return r;
+}
+
+constexpr afb_auth auth_yes()
+{
+ afb_auth r = { afb_auth_No, 0, 0};
+ r.type = afb_auth_Yes;
+ return r;
+}
+
+constexpr afb_auth auth_token()
+{
+ afb_auth r = { afb_auth_No, 0, 0};
+ r.type = afb_auth_Token;
+ return r;
+}
+
+constexpr afb_auth auth_LOA(unsigned loa)
+{
+ afb_auth r = { afb_auth_No, 0, 0};
+ r.type = afb_auth_LOA;
+ r.loa = loa;
+ return r;
+}
+
+constexpr afb_auth auth_permission(const char *permission)
+{
+ afb_auth r = { afb_auth_No, 0, 0};
+ r.type = afb_auth_Permission;
+ r.text = permission;
+ return r;
+}
+
+constexpr afb_auth auth_not(const afb_auth *other)
+{
+ afb_auth r = { afb_auth_No, 0, 0};
+ r.type = afb_auth_Not;
+ r.first = other;
+ return r;
+}
+
+constexpr afb_auth auth_not(const afb_auth &other)
+{
+ return auth_not(&other);
+}
+
+constexpr afb_auth auth_or(const afb_auth *first, const afb_auth *next)
+{
+ afb_auth r = { afb_auth_No, 0, 0};
+ r.type = afb_auth_Or;
+ r.first = first;
+ r.next = next;
+ return r;
+}
+
+constexpr afb_auth auth_or(const afb_auth &first, const afb_auth &next)
+{
+ return auth_or(&first, &next);
+}
+
+constexpr afb_auth auth_and(const afb_auth *first, const afb_auth *next)
+{
+ afb_auth r = { afb_auth_No, 0, 0};
+ r.type = afb_auth_And;
+ r.first = first;
+ r.next = next;
+ return r;
+}
+
+constexpr afb_auth auth_and(const afb_auth &first, const afb_auth &next)
+{
+ return auth_and(&first, &next);
+}
+
+constexpr afb_verb_t verb(
+ const char *name,
+ void (*callback)(afb_req_t),
+ const char *info = nullptr,
+ uint16_t session = 0,
+ const afb_auth *auth = nullptr
+#if AFB_BINDING_VERSION >= 3
+ ,
+ bool glob = false,
+ void *vcbdata = nullptr
+#endif
+)
+{
+#if AFB_BINDING_VERSION >= 3
+ afb_verb_t r = { 0, 0, 0, 0, 0, 0, 0 };
+#else
+ afb_verb_t r = { 0, 0, 0, 0, 0 };
+#endif
+ r.verb = name;
+ r.callback = callback;
+ r.info = info;
+ r.session = session;
+ r.auth = auth;
+#if AFB_BINDING_VERSION >= 3
+ r.glob = (unsigned)glob;
+ r.vcbdata = vcbdata;
+#endif
+ return r;
+}
+
+constexpr afb_verb_t verbend()
+{
+ afb_verb_t r = verb(nullptr, nullptr);
+ return r;
+}
+
+constexpr afb_binding_t binding(
+ const char *name,
+ const afb_verb_t *verbs,
+ const char *info = nullptr,
+#if AFB_BINDING_VERSION >= 3
+ int (*init)(afb_api_t) = nullptr,
+ const char *specification = nullptr,
+ void (*onevent)(afb_api_t, const char*, struct json_object*) = nullptr,
+ bool noconcurrency = false,
+ int (*preinit)(afb_api_t) = nullptr,
+ void *userdata = nullptr
+#else
+ int (*init)() = nullptr,
+ const char *specification = nullptr,
+ void (*onevent)(const char*, struct json_object*) = nullptr,
+ bool noconcurrency = false,
+ int (*preinit)() = nullptr
+#endif
+)
+{
+#if AFB_BINDING_VERSION >= 3
+ afb_binding_t r = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+#else
+ afb_binding_t r = { 0, 0, 0, 0, 0, 0, 0, 0 };
+#endif
+ r.api = name;
+ r.specification = specification;
+ r.info = info;
+ r.verbs = verbs;
+ r.preinit = preinit;
+ r.init = init;
+ r.onevent = onevent;
+ r.noconcurrency = noconcurrency ? 1 : 0;
+#if AFB_BINDING_VERSION >= 3
+ r.userdata = userdata;
+#endif
+ return r;
+};
+
+/*************************************************************************/
+/*** E N D ***/
+/*************************************************************************/
+}