/*
- * Copyright (C) 2016-2019 "IoT.bzh"
+ * Copyright (C) 2015-2020 "IoT.bzh"
* Author: José Bollo <jose.bollo@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
#include <cstdlib>
#include <cstdarg>
#include <functional>
+#include <string>
/* ensure version */
#ifndef AFB_BINDING_VERSION
/* pre-declaration of classes */
/*************************************************************************/
+class api;
class arg;
class event;
class req;
/* effective declaration of classes */
/*************************************************************************/
+/* apis */
+class api
+{
+protected:
+ afb_api_t api_;
+public:
+ using call_cb = void (*)(void *closure, struct json_object *object, const char *error, const char *info, afb_api_t api);
+ using queue_cb = void (*)(int signum, void *arg);
+ using event_cb = void (*)(void *, const char *, struct json_object *, afb_api_t);
+ using preinit_cb = int (*)(void *, afb_api_t);
+ using verb_cb = void (*)(afb_req_t req);
+ using onevent_cb = void (*)(afb_api_t api, const char *event, struct json_object *object);
+ using oninit_cb = int (*)(afb_api_t api);
+
+ api();
+ api(afb_api_t a);
+ api(const api &other) = delete;
+ api(api &&other);
+ ~api();
+ api &operator=(const api &other) = delete;
+ api &operator=(api &&other);
+
+ operator afb_api_t() const;
+ afb_api_t operator->() const;
+
+ /* General functions */
+ const char *name() const;
+ void *get_userdata() const;
+ void set_userdata(void *value) const;
+ int require_api(const char *name, int initialized) const;
+ int require_api(const std::string &name, int initialized) const;
+
+ /* Verbosity functions */
+ int wants_log_level(int level) const;
+ void vverbose(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;
+
+ /* Data retrieval functions */
+ int rootdir_get_fd() const;
+ int rootdir_open_locale(const char *filename, int flags, const char *locale) const;
+ int rootdir_open_locale(const std::string &filename, int flags, const std::string &locale) const;
+ struct json_object *settings() const;
+
+ /* Calls and job functions */
+ void call(const char *apiname, const char *verb, struct json_object *args, call_cb callback, void *closure) const;
+ void call(const std::string &apiname, const std::string &verb, struct json_object *args, call_cb callback, void *closure) const;
+ int call_sync(const char *apiname, const char *verb, struct json_object *args, struct json_object **object, char **error, char **info) const;
+ int call_sync(const std::string &apiname, const std::string &verb, struct json_object *args, struct json_object **object, std::string &error, std::string &info) const;
+ int queue_job(queue_cb callback, void *argument, void *group, int timeout) const;
+
+ /* Event functions */
+ int broadcast_event(const char *name, struct json_object *object) const;
+ int broadcast_event(const std::string &name, struct json_object *object) const;
+ event make_event(const char *name) const;
+ event make_event(const std::string &name) const;
+ int event_handler_add(const char *pattern, event_cb callback, void *closure) const;
+ int event_handler_add(const std::string &pattern, event_cb callback, void *closure) const;
+ int event_handler_del(const char *pattern, void **closure) const;
+ int event_handler_del(const std::string &pattern, void **closure) const;
+
+ /* Systemd functions */
+ struct sd_event *get_event_loop() const;
+ struct sd_bus *get_user_bus() const;
+ struct sd_bus *get_system_bus() const;
+
+ /* Dynamic api functions */
+ api new_api(const char *apiname, const char *info, int noconcurrency, preinit_cb preinit, void *closure) const;
+ api new_api(const std::string &apiname, const std::string &info, int noconcurrency, preinit_cb preinit, void *closure) const;
+ int set_verbs(const struct afb_verb_v2 *verbs) const;
+ int set_verbs(const struct afb_verb_v3 *verbs) const;
+ int add_verb(const char *verb, const char *info, verb_cb callback, void *vcbdata, const struct afb_auth *auth, uint32_t session, int glob) const;
+ int add_verb(const std::string &verb, const std::string &info, verb_cb callback, void *vcbdata, const struct afb_auth *auth, uint32_t session, int glob) const;
+ int del_verb(const char *verb, void **vcbdata) const;
+ int del_verb(const std::string &verb, void **vcbdata) const;
+ int on_event(onevent_cb onevent) const;
+ int on_init(oninit_cb oninit) const;
+ int provide_class(const char *name) const;
+ int provide_class(const std::string &name) const;
+ int require_class(const char *name) const;
+ int require_class(const std::string &name) const;
+ void seal() const;
+ int delete_api() const;
+ int add_alias(const char *name, const char *as_name) const;
+ int add_alias(const std::string &name, const std::string &as_name) const;
+};
+
/* events */
class event
{
afb_event_t event_;
public:
- event() { invalidate(); }
+ event();
event(afb_event_t e);
event(const event &other);
+ event(event &&other);
+ ~event();
event &operator=(const event &other);
+ event &operator=(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 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;
int get_uid() const;
json_object *get_client_info() const;
+
+ template < class T = void >
+ class contextclass {
+
+ friend class req;
+ afb_req_t req_;
+ contextclass(afb_req_t r) : req_(r) {}
+ static void default_destroyer(T*t) { delete t; }
+
+ public:
+ inline operator T *() const { return get(); }
+ inline operator T &() const { return *get(); }
+ inline T* get() const {
+ return reinterpret_cast<T*>(
+ afb_req_context(req_, 0,
+ nullptr,
+ nullptr,
+ nullptr));
+ }
+
+ inline void set(T *value, void (*destroyer)(T*) = default_destroyer) const {
+ afb_req_context(req_, 1,
+ nullptr,
+ reinterpret_cast<void(*)(void*)>(destroyer),
+ reinterpret_cast<void*>(value));
+ }
+
+ inline void unset() { set(nullptr); }
+ inline void clear() { set(nullptr); }
+
+ inline T *lazy(T *(*allocator)() = []()->T*{return new T();}, void (*destroyer)(T*) = [](T*t){delete t;}) const {
+ return reinterpret_cast<T*>(
+ afb_req_context(req_, 0,
+ [allocator](void*)->T*{return allocator();},
+ reinterpret_cast<void(*)(void*)>(destroyer),
+ nullptr));
+ }
+
+ template <class I>
+ inline T *lazy(I *i, T *(*allocator)(I*) = [](I*i)->T*{return new T(i);}, void (*destroyer)(T*) = [](T*t){delete t;}) const {
+ return reinterpret_cast<T*>(
+ afb_req_context(req_, 0,
+ [allocator](void*i)->T*{return allocator(reinterpret_cast<I*>(i));},
+ reinterpret_cast<void(*)(void*)>(destroyer),
+ reinterpret_cast<void*>(i)));
+ }
+ };
+
+ template < class T > contextclass<T> context() const { return contextclass<T>(req_); }
};
/*************************************************************************/
/* effective declaration of classes */
/*************************************************************************/
+/* apis */
+inline api::api() : api_{nullptr} { }
+inline api::api(afb_api_t a) : api_{a} { }
+inline api::api(api &&other) : api_{other.api_} { other.api_ = nullptr; }
+inline api::~api() { api_ = nullptr; }
+inline api &api::operator=(api &&other) { api_ = other.api_; other.api_ = nullptr; return *this;}
+inline api::operator afb_api_t() const { return api_; }
+inline afb_api_t api::operator->() const { return api_; }
+inline const char *api::name() const { return afb_api_name(api_); }
+inline void *api::get_userdata() const { return afb_api_get_userdata(api_); }
+inline void api::set_userdata(void *value) const { afb_api_set_userdata(api_, value); }
+inline int api::require_api(const char *name, int initialized) const { return afb_api_require_api(api_, name, initialized); }
+inline int api::require_api(const std::string& name, int initialized) const { return afb_api_require_api(api_, name.c_str(), initialized); }
+inline int api::wants_log_level(int level) const { return afb_api_wants_log_level(api_, level); }
+inline void api::vverbose(int level, const char *file, int line, const char *func, const char *fmt, va_list args) const { afb_api_vverbose(api_, level, file, line, func, fmt, args); }
+inline void api::verbose(int level, const char *file, int line, const char *func, const char *fmt, ...) const
+{
+ va_list args;
+ va_start(args, fmt);
+ vverbose(level, file, line, func, fmt, args);
+ va_end(args);
+}
+inline int api::rootdir_get_fd() const { return afb_api_rootdir_get_fd(api_); }
+inline int api::rootdir_open_locale(const char *filename, int flags, const char *locale) const { return afb_api_rootdir_open_locale(api_, filename, flags, locale); }
+inline int api::rootdir_open_locale(const std::string &filename, int flags, const std::string &locale) const { return afb_api_rootdir_open_locale(api_, filename.c_str(), flags, locale.c_str()); }
+inline struct json_object *api::settings() const { return afb_api_settings(api_); }
+inline void api::call(const char *apiname, const char *verb, struct json_object *args, call_cb callback, void *closure) const { afb_api_call(api_, apiname, verb, args, callback, closure); }
+inline void api::call(const std::string &apiname, const std::string &verb, struct json_object *args, call_cb callback, void *closure) const { afb_api_call(api_, apiname.c_str(), verb.c_str(), args, callback, closure); }
+inline int api::call_sync(const char *apiname, const char *verb, struct json_object *args, struct json_object **object, char **error, char **info) const { return afb_api_call_sync(api_, apiname, verb, args, object, error, info); }
+inline int api::call_sync(const std::string &apiname, const std::string &verb, struct json_object *args, struct json_object **object, std::string &error, std::string& info) const
+{
+ char *err, *inf;
+ int ret = afb_api_call_sync(api_, apiname.c_str(), verb.c_str(), args, object, &err, &inf);
+ error = err;
+ info = inf;
+ return ret;
+}
+inline int api::queue_job(queue_cb callback, void *argument, void *group, int timeout) const { return afb_api_queue_job(api_, callback, argument, group, timeout); }
+inline int api::broadcast_event(const char *name, struct json_object *object) const { return afb_api_broadcast_event(api_, name, object); }
+inline int api::broadcast_event(const std::string &name, struct json_object *object) const { return afb_api_broadcast_event(api_, name.c_str(), object); }
+inline event api::make_event(const char *name) const { return event(afb_api_make_event(api_, name)); }
+inline event api::make_event(const std::string &name) const { return event(afb_api_make_event(api_, name.c_str())); }
+inline int api::event_handler_add(const char *pattern, event_cb callback, void *closure) const { return afb_api_event_handler_add(api_, pattern, callback, closure); }
+inline int api::event_handler_add(const std::string &pattern, event_cb callback, void *closure) const { return afb_api_event_handler_add(api_, pattern.c_str(), callback, closure); }
+inline int api::event_handler_del(const char *pattern, void **closure) const { return afb_api_event_handler_del(api_, pattern, closure); }
+inline int api::event_handler_del(const std::string &pattern, void **closure) const { return afb_api_event_handler_del(api_, pattern.c_str(), closure); }
+inline struct sd_event *api::get_event_loop() const { return afb_api_get_event_loop(api_); }
+inline struct sd_bus *api::get_user_bus() const { return afb_api_get_user_bus(api_); }
+inline struct sd_bus *api::get_system_bus() const { return afb_api_get_system_bus(api_); }
+inline api api::new_api(const char *apiname, const char *info, int noconcurrency, preinit_cb preinit, void *closure) const { return api(afb_api_new_api(api_, apiname, info, noconcurrency, preinit, closure)); }
+inline api api::new_api(const std::string &apiname, const std::string &info, int noconcurrency, preinit_cb preinit, void *closure) const { return api(afb_api_new_api(api_, apiname.c_str(), info.c_str(), noconcurrency, preinit, closure)); }
+inline int api::set_verbs(const struct afb_verb_v2 *verbs) const { return afb_api_set_verbs_v2(api_, verbs); }
+inline int api::set_verbs(const struct afb_verb_v3 *verbs) const { return afb_api_set_verbs_v3(api_, verbs); }
+inline int api::add_verb(const char *verb, const char *info, verb_cb callback, void *vcbdata, const struct afb_auth *auth, uint32_t session, int glob) const { return afb_api_add_verb(api_, verb, info, callback, vcbdata, auth, session, glob); }
+inline int api::add_verb(const std::string &verb, const std::string &info, verb_cb callback, void *vcbdata, const struct afb_auth *auth, uint32_t session, int glob) const { return afb_api_add_verb(api_, verb.c_str(), info.c_str(), callback, vcbdata, auth, session, glob); }
+inline int api::del_verb(const char *verb, void **vcbdata) const { return afb_api_del_verb(api_, verb, vcbdata); }
+inline int api::del_verb(const std::string &verb, void **vcbdata) const { return afb_api_del_verb(api_, verb.c_str(), vcbdata); }
+inline int api::on_event(onevent_cb onevent) const { return afb_api_on_event(api_, onevent); }
+inline int api::on_init(oninit_cb oninit) const { return afb_api_on_init(api_, oninit); }
+inline int api::provide_class(const char *name) const { return afb_api_provide_class(api_, name); }
+inline int api::provide_class(const std::string &name) const { return afb_api_provide_class(api_, name.c_str()); }
+inline int api::require_class(const char *name) const { return afb_api_require_class(api_, name); }
+inline int api::require_class(const std::string &name) const { return afb_api_require_class(api_, name.c_str()); }
+inline void api::seal() const { afb_api_seal(api_); }
+inline int api::delete_api() const { return afb_api_delete_api(api_); }
+inline int api::add_alias(const char *name, const char *as_name) const { return afb_api_add_alias(api_, name, as_name); }
+inline int api::add_alias(const std::string &name, const std::string &as_name) const { return afb_api_add_alias(api_, name.c_str(), as_name.c_str()); }
+
/* events */
-inline event::event(afb_event_t e) : event_(e) { }
-inline event::event(const event &other) : event_(other.event_) { }
+inline event::event() : event_{nullptr} { }
+inline event::event(afb_event_t e) : event_{e} { }
+inline event::event(event &&other) : event_{other.event_} { other.event_ = nullptr; }
+inline event::event(const event &other) : event_{other.event_} { addref(); }
+inline event::~event() { unref(); }
inline event &event::operator=(const event &other) { event_ = other.event_; return *this; }
+inline event &event::operator=(event &&other) { event_ = other.event_; other.event_ = nullptr; 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_); }
-inline void event::invalidate() { event_ = nullptr; }
-
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::unref() { if (event_) { afb_event_unref(event_); } event_ = nullptr; }
inline void event::addref() { afb_event_addref(event_); }
inline const char *event::name() const { return afb_event_name(event_); }
/* 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; }
va_end(args);
}
-template < class T >
-inline T *req::context() const
-{
- 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));
-}
-
inline void req::addref() const { afb_req_addref(req_); }
inline void req::unref() const { afb_req_unref(req_); }
constexpr afb_auth auth_no()
{
- afb_auth r = { afb_auth_No, 0, 0};
+ afb_auth r = { afb_auth_No, {0}, nullptr};
r.type = afb_auth_No;
return r;
}
constexpr afb_auth auth_yes()
{
- afb_auth r = { afb_auth_No, 0, 0};
+ afb_auth r = { afb_auth_No, {0}, nullptr};
r.type = afb_auth_Yes;
return r;
}
constexpr afb_auth auth_token()
{
- afb_auth r = { afb_auth_No, 0, 0};
+ afb_auth r = { afb_auth_No, {0}, nullptr};
r.type = afb_auth_Token;
return r;
}
constexpr afb_auth auth_LOA(unsigned loa)
{
- afb_auth r = { afb_auth_No, 0, 0};
+ afb_auth r = { afb_auth_No, {0}, nullptr};
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};
+ afb_auth r = { afb_auth_No, {0}, nullptr};
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};
+ afb_auth r = { afb_auth_No, {0}, nullptr};
r.type = afb_auth_Not;
r.first = other;
return r;
constexpr afb_auth auth_or(const afb_auth *first, const afb_auth *next)
{
- afb_auth r = { afb_auth_No, 0, 0};
+ afb_auth r = { afb_auth_No, {0}, nullptr};
r.type = afb_auth_Or;
r.first = first;
r.next = next;
constexpr afb_auth auth_and(const afb_auth *first, const afb_auth *next)
{
- afb_auth r = { afb_auth_No, 0, 0};
+ afb_auth r = { afb_auth_No, {0}, nullptr};
r.type = afb_auth_And;
r.first = first;
r.next = next;
void *vcbdata = nullptr
)
{
- afb_verb_t r = { 0, 0, 0, 0, 0, 0, 0 };
- r.verb = name;
- r.callback = callback;
- r.info = info;
- r.session = session;
- r.auth = auth;
- r.glob = (unsigned)glob;
- r.vcbdata = vcbdata;
- return r;
+ return { name, callback, auth, info, vcbdata, session, glob };
+}
+
+void __attribute__((weak)) __afb__verb__cb__for__global__(afb_req_t r)
+{
+ void *vcbdata;
+ void (*callback)(req);
+
+ vcbdata = afb_req_get_vcbdata(r);
+ callback = reinterpret_cast<void(*)(req)>(vcbdata);
+ callback(req(r));
+}
+
+constexpr afb_verb_t verb(
+ const char *name,
+ void (*callback)(req),
+ const char *info = nullptr,
+ uint16_t session = 0,
+ const afb_auth *auth = nullptr,
+ bool glob = false
+)
+{
+ return verb(
+ name,
+ __afb__verb__cb__for__global__,
+ info,
+ session,
+ auth,
+ glob,
+ *(void**)(&callback)
+ );
}
constexpr afb_verb_t verbend()
{
- afb_verb_t r = verb(nullptr, nullptr);
- return r;
+ return { 0, 0, 0, 0, 0, 0, 0 };
}
constexpr afb_binding_t binding(
void *userdata = nullptr
)
{
- afb_binding_t r = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
- 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;
- r.userdata = userdata;
- return r;
+ return {
+ name, specification, info, verbs, preinit, init, onevent, userdata,
+ nullptr, nullptr, nullptr, static_cast<unsigned int>(noconcurrency) };
};
/*************************************************************************/