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/*
* Copyright (C) 2016 "IoT.bzh"
* Author Fulup Ar Foll <fulup@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, something express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef _CTL_PLUGIN_INCLUDE_
#define _CTL_PLUGIN_INCLUDE_
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <json-c/json.h>
#include "afb-definitions.h"
#ifndef CTL_PLUGIN_MAGIC
#define CTL_PLUGIN_MAGIC 852369147
#endif
#ifndef UNUSED_ARG
#define UNUSED_ARG(x) UNUSED_ ## x __attribute__((__unused__))
#define UNUSED_FUNCTION(x) __attribute__((__unused__)) UNUSED_ ## x
#endif
#ifdef CONTROL_SUPPORT_LUA
typedef struct luaL_Reg luaL_Reg;
typedef struct CtlLua2cFuncT {
luaL_Reg *l2cFunc;
const char *prefix;
int l2cCount;
} CtlLua2cFuncT;
#endif
typedef struct {
const char *uid;
const long magic;
} CtlPluginMagicT;
typedef struct {
const char *uid;
const char *info;
AFB_ApiT api;
void *dlHandle;
void *context;
#ifdef CONTROL_SUPPORT_LUA
CtlLua2cFuncT *ctlL2cFunc;
#endif
} CtlPluginT;
typedef enum {
CTL_TYPE_NONE=0,
CTL_TYPE_API,
CTL_TYPE_CB,
CTL_TYPE_LUA,
} CtlActionTypeT;
typedef enum {
CTL_STATUS_DONE=0,
CTL_STATUS_ERR=-1,
CTL_STATUS_EVT=1,
CTL_STATUS_FREE=2,
} CtlActionStatusT;
typedef struct {
const char *uid;
AFB_ApiT api;
AFB_ReqT request;
void *context;
CtlActionStatusT status;
} CtlSourceT;
typedef struct {
const char *uid;
const char *info;
const char *privileges;
AFB_ApiT api;
json_object *argsJ;
CtlActionTypeT type;
union {
struct {
const char* api;
const char* verb;
} subcall;
struct {
const char* plugin;
const char* funcname;
} lua;
struct {
const char* funcname;
int (*callback)(CtlSourceT *source, json_object *argsJ, json_object *queryJ);
CtlPluginT *plugin;
} cb;
} exec;
} CtlActionT;
extern CtlPluginT *ctlPlugins;
typedef int(*DispatchPluginInstallCbT)(CtlPluginT *plugin, void* handle);
#define MACRO_STR_VALUE(arg) #arg
#define CTLP_CAPI_REGISTER(pluglabel) CtlPluginMagicT CtlPluginMagic={.uid=pluglabel,.magic=CTL_PLUGIN_MAGIC}; struct afb_binding_data_v2;
#define CTLP_ONLOAD(plugin, handle) int CtlPluginOnload(CtlPluginT *plugin, void* handle)
#define CTLP_INIT(plugin, handle) int CtlPluginInit(CtlPluginT *plugin, void* handle)
#define CTLP_CAPI(funcname, source, argsJ, queryJ) int funcname(CtlSourceT *source, json_object* argsJ, json_object* queryJ)
// LUA2c Wrapper macro. Allows to call C code from Lua script
typedef int (*Lua2cFunctionT)(CtlSourceT *source, json_object *argsJ, json_object **responseJ);
typedef int (*Lua2cWrapperT) (void*luaHandle, const char *funcname, Lua2cFunctionT callback);
#define CTLP_LUA_REGISTER(pluglabel) Lua2cWrapperT Lua2cWrap; CTLP_CAPI_REGISTER(pluglabel);
#define CTLP_LUA2C(funcname, source, argsJ, responseJ) int funcname (CtlSourceT* source, json_object* argsJ, json_object** responseJ);\
int lua2c_ ## funcname (void* luaState){return((*Lua2cWrap)(luaState, MACRO_STR_VALUE(funcname), funcname));};\
int funcname (CtlSourceT* source, json_object* argsJ, json_object** responseJ)
extern char *GetDefaultPluginSearchPath(AFB_ApiT apiHandle, const char *prefix);
#ifdef __cplusplus
}
#endif
#endif /* _CTL_PLUGIN_INCLUDE_ */
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