Initial Commit as submodule

1 files changed, 0 insertions, 1068 deletions

diff --git a/ctl-binding/ctl-lua.c b/ctl-binding/ctl-lua.c
deleted file mode 100644
index 2c80205..0000000
--- a/ctl-binding/ctl-lua.c
+++ /dev/null
@@ -1,1068 +0,0 @@
-/*
- * 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, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * ref:
- *  (manual) https://www.lua.org/manual/5.3/manual.html
- *  (lua->C) http://www.troubleshooters.com/codecorn/lua/lua_c_calls_lua.htm#_Anatomy_of_a_Lua_Call
- *  (lua/C Var) http://acamara.es/blog/2012/08/passing-variables-from-lua-5-2-to-c-and-vice-versa/
- *  (Lua/C Lib)https://john.nachtimwald.com/2014/07/12/wrapping-a-c-library-in-lua/
- *  (Lua/C Table) https://gist.github.com/SONIC3D/10388137
- *  (Lua/C Nested table) https://stackoverflow.com/questions/45699144/lua-nested-table-from-lua-to-c
- *  (Lua/C Wrapper) https://stackoverflow.com/questions/45699950/lua-passing-handle-to-function-created-with-newlib
- *
- */
-
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <string.h>
-
-
-#include "ctl-binding.h"
-#include "wrap-json.h"
-
-#define LUA_FIST_ARG 2  // when using luaL_newlib calllback receive libtable as 1st arg
-#define LUA_MSG_MAX_LENGTH 512
-#define JSON_ERROR (json_object*)-1
-static afb_req NULL_AFBREQ = {};
-
-
-static  lua_State* luaState;
-
-#define CTX_MAGIC 123456789
-#define CTX_TOKEN "AFB_ctx"
-
-typedef struct {
-    char *name;
-    int  count;
-    afb_event event;
-} LuaAfbEvent;
-static LuaAfbEvent *luaDefaultEvt;
-
-typedef struct {
-    int ctxMagic;
-    afb_req request;
-    void *handle;
-    char *info;
-} LuaAfbContextT;
-
-typedef struct {
-  const char *callback;
-  json_object *context;
-  void *handle;
-} LuaCallServiceT;
-
-typedef enum {
-    AFB_MSG_INFO,
-    AFB_MSG_WARNING,
-    AFB_MSG_NOTICE,
-    AFB_MSG_DEBUG,
-    AFB_MSG_ERROR,
-} LuaAfbMessageT;
-
-/*
- * Note(Fulup): I fail to use luaL_setmetatable and replaced it with a simple opaque
- * handle while waiting for someone smarter than me to find a better solution
- *  https://stackoverflow.com/questions/45596493/lua-using-lua-newuserdata-from-lua-pcall
- */
-
-STATIC LuaAfbContextT *LuaCtxCheck (lua_State *luaState, int index) {
-  LuaAfbContextT *afbContext;
-  //luaL_checktype(luaState, index, LUA_TUSERDATA);
-  //afbContext = (LuaAfbContextT *)luaL_checkudata(luaState, index, CTX_TOKEN);
-  luaL_checktype(luaState, index, LUA_TLIGHTUSERDATA);
-  afbContext = (LuaAfbContextT *) lua_touserdata(luaState, index);
-  if (afbContext == NULL && afbContext->ctxMagic != CTX_MAGIC) {
-      luaL_error(luaState, "Fail to retrieve user data context=%s", CTX_TOKEN);
-      AFB_ERROR ("afbContextCheck error retrieving afbContext");
-      return NULL;
-  }
-  return afbContext;
-}
-
-STATIC LuaAfbContextT *LuaCtxPush (lua_State *luaState, afb_req request, void *handle, const char* info) {
-  // LuaAfbContextT *afbContext = (LuaAfbContextT *)lua_newuserdata(luaState, sizeof(LuaAfbContextT));
-  // luaL_setmetatable(luaState, CTX_TOKEN);
-  LuaAfbContextT *afbContext = (LuaAfbContextT *)calloc(1, sizeof(LuaAfbContextT));
-  lua_pushlightuserdata(luaState, afbContext);
-  if (!afbContext) {
-      AFB_ERROR ("LuaCtxPush fail to allocate user data context");
-      return NULL;
-  }
-  afbContext->ctxMagic=CTX_MAGIC;
-  afbContext->info=strdup(info);
-  afbContext->request= request;
-  afbContext->handle= handle;
-  return afbContext;
-}
-
-STATIC void LuaCtxFree (LuaAfbContextT *afbContext) {
-    free(afbContext->info);
-    free(afbContext);
-}
-
-// Push a json structure on the stack as a LUA table
-STATIC int LuaPushArgument (json_object *argsJ) {
-
-    //AFB_NOTICE("LuaPushArgument argsJ=%s", json_object_get_string(argsJ));
-
-    json_type jtype= json_object_get_type(argsJ);
-    switch (jtype) {
-        case json_type_object: {
-            lua_newtable (luaState);
-            json_object_object_foreach (argsJ, key, val) {
-                int done = LuaPushArgument (val);
-                if (done) {
-                    lua_setfield(luaState,-2, key);
-                }
-            }
-            break;
-        }
-        case json_type_array: {
-            int length= json_object_array_length(argsJ);
-            lua_newtable (luaState);
-            for (int idx=0; idx < length; idx ++) {
-                json_object *val=json_object_array_get_idx(argsJ, idx);
-                LuaPushArgument (val);
-                lua_seti (luaState,-2, idx);
-            }
-            break;
-        }
-        case json_type_int:
-            lua_pushinteger(luaState, json_object_get_int(argsJ));
-            break;
-        case json_type_string:
-            lua_pushstring(luaState, json_object_get_string(argsJ));
-            break;
-        case json_type_boolean:
-            lua_pushboolean(luaState, json_object_get_boolean(argsJ));
-            break;
-        case json_type_double:
-            lua_pushnumber(luaState, json_object_get_double(argsJ));
-            break;
-        case json_type_null:
-            AFB_WARNING("LuaPushArgument: NULL object type %s", json_object_get_string(argsJ));
-            return 0;
-            break;
-
-        default:
-            AFB_ERROR("LuaPushArgument: unsupported Json object type %s", json_object_get_string(argsJ));
-            return 0;
-    }
-    return 1;
-}
-
-STATIC  json_object *LuaPopOneArg (lua_State* luaState, int idx);
-
-// Move a table from Internal Lua representation to Json one
-// Numeric table are transformed in json array, string one in object
-// Mix numeric/string key are not supported
-STATIC json_object *LuaTableToJson (lua_State* luaState, int index) {
-    #define LUA_KEY_INDEX -2
-    #define LUA_VALUE_INDEX -1
-
-    int idx;
-    int tableType;
-    json_object *tableJ= NULL;
-
-    lua_pushnil(luaState); // 1st key
-    if (index < 0) index--;
-    for (idx=1; lua_next(luaState, index) != 0; idx++) {
-
-        // uses 'key' (at index -2) and 'value' (at index -1)
-        if (lua_type(luaState,LUA_KEY_INDEX) == LUA_TSTRING) {
-
-            if (!tableJ) {
-                tableJ= json_object_new_object();
-                tableType=LUA_TSTRING;
-            } else if (tableType != LUA_TSTRING){
-                AFB_ERROR("MIX Lua Table with key string/numeric not supported");
-                return NULL;
-            }
-
-            const char *key= lua_tostring(luaState, LUA_KEY_INDEX);
-            json_object *argJ= LuaPopOneArg(luaState, LUA_VALUE_INDEX);
-            json_object_object_add(tableJ, key, argJ);
-
-        } else {
-            if (!tableJ) {
-                tableJ= json_object_new_array();
-                tableType=LUA_TNUMBER;
-            } else if(tableType != LUA_TNUMBER) {
-                AFB_ERROR("MIX Lua Table with key numeric/string not supported");
-                return NULL;
-            }
-
-            json_object *argJ= LuaPopOneArg(luaState, LUA_VALUE_INDEX);
-            json_object_array_add(tableJ, argJ);
-        }
-
-
-        lua_pop(luaState, 1); // removes 'value'; keeps 'key' for next iteration
-    }
-
-    // Query is empty free empty json object
-    if (idx == 1) {
-        json_object_put(tableJ);
-        return NULL;
-    }
-    return tableJ;
-}
-
-STATIC  json_object *LuaPopOneArg (lua_State* luaState, int idx) {
-    json_object *value=NULL;
-
-    int luaType = lua_type(luaState, idx);
-    switch(luaType)  {
-        case LUA_TNUMBER: {
-            lua_Number number= lua_tonumber(luaState, idx);;
-            int nombre = (int)number; // evil trick to determine wether n fits in an integer. (stolen from ltcl.c)
-            if (number == nombre) {
-                value= json_object_new_int((int)number);
-            } else {
-                value= json_object_new_double(number);
-            }
-            break;
-        }
-        case LUA_TBOOLEAN:
-            value=  json_object_new_boolean(lua_toboolean(luaState, idx));
-            break;
-        case LUA_TSTRING:
-           value=  json_object_new_string(lua_tostring(luaState, idx));
-            break;
-        case LUA_TTABLE:
-            value= LuaTableToJson(luaState, idx);
-            break;
-        case LUA_TNIL:
-            value=json_object_new_string("nil") ;
-            break;
-        case LUA_TUSERDATA:
-            value=json_object_new_int64((int64_t)lua_touserdata(luaState, idx)); // store userdata as int !!!
-            break;
-
-        default:
-            AFB_NOTICE ("LuaPopOneArg: script returned Unknown/Unsupported idx=%d type:%d/%s", idx, luaType, lua_typename(luaState, luaType));
-            value=NULL;
-    }
-
-    return value;
-}
-
-static json_object *LuaPopArgs (lua_State* luaState, int start) {
-    json_object *responseJ;
-
-    int stop = lua_gettop(luaState);
-    if(stop-start <0) return NULL;
-
-    // start at 2 because we are using a function array lib
-    if (start == stop) {
-        responseJ=LuaPopOneArg (luaState, start);
-    } else {
-        // loop on remaining return arguments
-        responseJ= json_object_new_array();
-        for (int idx=start; idx <= stop; idx++) {
-            json_object *argJ=LuaPopOneArg (luaState, idx);
-            if (!argJ) goto OnErrorExit;
-            json_object_array_add(responseJ, argJ);
-       }
-    }
-
-    return responseJ;
-
-  OnErrorExit:
-    return NULL;
-}
-
-
-STATIC int LuaFormatMessage(lua_State* luaState, LuaAfbMessageT action) {
-    char *message;
-
-    json_object *responseJ= LuaPopArgs(luaState, LUA_FIST_ARG);
-
-    if (!responseJ) {
-        luaL_error(luaState,"LuaFormatMessage empty message");
-        goto OnErrorExit;
-    }
-
-    // if we have only on argument just return the value.
-    if (json_object_get_type(responseJ)!=json_type_array || json_object_array_length(responseJ) <2) {
-        message= (char*)json_object_get_string(responseJ);
-        goto PrintMessage;
-    }
-
-    // extract format and push all other parameter on the stack
-    message = alloca (LUA_MSG_MAX_LENGTH);
-    const char *format = json_object_get_string(json_object_array_get_idx(responseJ, 0));
-
-    int arrayIdx=1;
-    int targetIdx=0;
-
-    for (int idx=0; format[idx] !='\0'; idx++) {
-
-        if (format[idx]=='%' && format[idx] !='\0') {
-            json_object *slotJ= json_object_array_get_idx(responseJ, arrayIdx);
-            //if (slotJ) AFB_NOTICE("**** idx=%d slotJ=%s", arrayIdx, json_object_get_string(slotJ));
-
-
-            switch (format[++idx]) {
-                case 'd':
-                    if (slotJ) targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"%d", json_object_get_int(slotJ));
-                    else  targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"nil");
-                    arrayIdx++;
-                    break;
-                case 'f':
-                    if (slotJ) targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"%f", json_object_get_double(slotJ));
-                    else  targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"nil");
-                    arrayIdx++;
-                    break;
-
-                case'%':
-                    message[targetIdx]='%';
-                    targetIdx++;
-                    break;
-
-                case 's':
-                default:
-                    if (slotJ) targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"%s", json_object_get_string(slotJ));
-                    else  targetIdx += snprintf (&message[targetIdx], LUA_MSG_MAX_LENGTH-targetIdx,"nil");
-                    arrayIdx++;
-                }
-
-        } else {
-            if (targetIdx >= LUA_MSG_MAX_LENGTH) {
-                AFB_WARNING ("LuaFormatMessage: message[%s] owerverflow LUA_MSG_MAX_LENGTH=%d", format, LUA_MSG_MAX_LENGTH);
-                targetIdx --; // move backward for EOL
-                break;
-            } else {
-                message[targetIdx++] = format[idx];
-            }
-        }
-    }
-    message[targetIdx]='\0';
-
-PrintMessage:
-    switch (action) {
-        case  AFB_MSG_WARNING:
-            AFB_WARNING ("%s", message);
-            break;
-        case AFB_MSG_NOTICE:
-            AFB_NOTICE ("%s", message);
-            break;
-        case AFB_MSG_DEBUG:
-            AFB_DEBUG ("%s", message);
-            break;
-        case AFB_MSG_INFO:
-            AFB_INFO ("%s", message);
-            break;
-        case AFB_MSG_ERROR:
-        default:
-            AFB_ERROR ("%s", message);
-    }
-    return 0;  // nothing return to lua
-
-  OnErrorExit: // on argument to return (the error message)
-    return 1;
-}
-
-STATIC int LuaPrintInfo(lua_State* luaState) {
-    int err=LuaFormatMessage (luaState, AFB_MSG_INFO);
-    return err;
-}
-
-STATIC int LuaPrintError(lua_State* luaState) {
-    int err=LuaFormatMessage (luaState, AFB_MSG_ERROR);
-    return err; // no value return
-}
-
-STATIC int LuaPrintWarning(lua_State* luaState) {
-    int err=LuaFormatMessage (luaState, AFB_MSG_WARNING);
-    return err;
-}
-
-STATIC int LuaPrintNotice(lua_State* luaState) {
-    int err=LuaFormatMessage (luaState, AFB_MSG_NOTICE);
-    return err;
-}
-
-STATIC int LuaPrintDebug(lua_State* luaState) {
-    int err=LuaFormatMessage (luaState, AFB_MSG_DEBUG);
-    return err;
-}
-
-STATIC int LuaAfbSuccess(lua_State* luaState) {
-    LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
-    if (!afbContext) goto OnErrorExit;
-
-    // ignore context argument
-    json_object *responseJ= LuaPopArgs(luaState, LUA_FIST_ARG+1);
-    if (responseJ == JSON_ERROR) return 1;
-
-    afb_req_success(afbContext->request, responseJ, NULL);
-
-    LuaCtxFree(afbContext);
-    return 0;
-
- OnErrorExit:
-        lua_error(luaState);
-        return 1;
-}
-
-STATIC int LuaAfbFail(lua_State* luaState) {
-    LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
-    if (!afbContext) goto OnErrorExit;
-
-    json_object *responseJ= LuaPopArgs(luaState, LUA_FIST_ARG+1);
-    if (responseJ == JSON_ERROR) return 1;
-
-    afb_req_fail(afbContext->request, afbContext->info, json_object_get_string(responseJ));
-
-    LuaCtxFree(afbContext);
-    return 0;
-
- OnErrorExit:
-        lua_error(luaState);
-        return 1;
-}
-
-STATIC void LuaAfbServiceCB(void *handle, int iserror, struct json_object *responseJ) {
-    LuaCallServiceT *contextCB= (LuaCallServiceT*)handle;
-    int count=1;
-
-    lua_getglobal(luaState, contextCB->callback);
-
-    // push error status & response
-    lua_pushboolean(luaState, iserror);
-    count+= LuaPushArgument(responseJ);
-    count+= LuaPushArgument(contextCB->context);
-
-    int err=lua_pcall(luaState, count, LUA_MULTRET, 0);
-    if (err) {
-        AFB_ERROR ("LUA-SERICE-CB:FAIL response=%s err=%s", json_object_get_string(responseJ), lua_tostring(luaState,-1) );
-    }
-
-    free (contextCB);
-}
-
-
-STATIC int LuaAfbService(lua_State* luaState) {
-    int count = lua_gettop(luaState);
-
-    // note: argument start at 2 because of AFB: table
-    if (count <5 || !lua_isstring(luaState, 2) || !lua_isstring(luaState, 3) || !lua_istable(luaState, 4) || !lua_isstring(luaState, 5)) {
-        lua_pushliteral (luaState, "ERROR: syntax AFB:service(api, verb, {[Lua Table]})");
-        goto OnErrorExit;
-    }
-
-    // get api/verb+query
-    const char *api = lua_tostring(luaState,2);
-    const char *verb= lua_tostring(luaState,3);
-    json_object *queryJ= LuaTableToJson(luaState, 4);
-    if (queryJ == JSON_ERROR) return 1;
-
-    LuaCallServiceT *contextCB = calloc (1, sizeof(LuaCallServiceT));
-    contextCB->callback= lua_tostring(luaState, 5);
-    contextCB->context =  LuaPopArgs(luaState, 6);
-
-    afb_service_call(api, verb, queryJ, LuaAfbServiceCB, contextCB);
-
-    return 0; // no value return
-
-  OnErrorExit:
-        lua_error(luaState);
-        return 1;
-}
-
-STATIC int LuaAfbServiceSync(lua_State* luaState) {
-    int count = lua_gettop(luaState);
-    json_object *responseJ;
-
-    // note: argument start at 2 because of AFB: table
-    if (count <3 || !lua_isstring(luaState, 2) || !lua_isstring(luaState, 3) || !lua_istable(luaState, 4)) {
-        lua_pushliteral (luaState, "ERROR: syntax AFB:servsync(api, verb, {[Lua Table]})");
-        goto OnErrorExit;
-    }
-
-    // get api/verb+query
-    const char *api = lua_tostring(luaState,2);
-    const char *verb= lua_tostring(luaState,3);
-    json_object *queryJ= LuaTableToJson(luaState, 4);
-
-    int iserror=afb_service_call_sync (api, verb, queryJ, &responseJ);
-
-    // push error status & response
-    count=1; lua_pushboolean(luaState, iserror);
-    count+= LuaPushArgument(responseJ);
-
-    return count; // return count values
-
-  OnErrorExit:
-        lua_error(luaState);
-        return 1;
-}
-
-STATIC int LuaAfbEventPush(lua_State* luaState) {
-    LuaAfbEvent *afbevt;
-    int index;
-
-    // if no private event handle then use default binding event
-    if (lua_islightuserdata(luaState, LUA_FIST_ARG)) {
-        afbevt = (LuaAfbEvent*) lua_touserdata(luaState, LUA_FIST_ARG);
-        index=LUA_FIST_ARG+1;
-    } else {
-        index=LUA_FIST_ARG;
-        afbevt=luaDefaultEvt;
-    }
-
-    if (!afb_event_is_valid(afbevt->event)) {
-        lua_pushliteral (luaState, "LuaAfbMakePush-Fail invalid event");
-        goto OnErrorExit;
-    }
-
-    json_object *ctlEventJ= LuaTableToJson(luaState, index);
-    if (!ctlEventJ) {
-        lua_pushliteral (luaState, "LuaAfbEventPush-Syntax is AFB:signal ([evtHandle], {lua table})");
-        goto OnErrorExit;
-    }
-
-    int done = afb_event_push(afbevt->event, ctlEventJ);
-    if (!done) {
-        lua_pushliteral (luaState, "LuaAfbEventPush-Fail No Subscriber to event");
-        AFB_ERROR ("LuaAfbEventPush-Fail name subscriber event=%s count=%d", afbevt->name, afbevt->count);
-        goto OnErrorExit;
-    }
-    afbevt->count++;
-    return 0;
-
-  OnErrorExit:
-        lua_error(luaState);
-        return 1;
-}
-
-STATIC int LuaAfbEventSubscribe(lua_State* luaState) {
-    LuaAfbEvent *afbevt;
-
-    LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
-    if (!afbContext) {
-        lua_pushliteral (luaState, "LuaAfbEventSubscribe-Fail Invalid request handle");
-        goto OnErrorExit;
-    }
-
-    // if no private event handle then use default binding event
-    if (lua_islightuserdata(luaState, LUA_FIST_ARG+1)) {
-        afbevt = (LuaAfbEvent*) lua_touserdata(luaState, LUA_FIST_ARG+1);
-    } else {
-        afbevt=luaDefaultEvt;
-    }
-
-    if (!afb_event_is_valid(afbevt->event)) {
-        lua_pushliteral (luaState, "LuaAfbMakePush-Fail invalid event handle");
-        goto OnErrorExit;
-    }
-
-    int err = afb_req_subscribe(afbContext->request, afbevt->event);
-    if (err) {
-        lua_pushliteral (luaState, "LuaAfbEventSubscribe-Fail No Subscriber to event");
-        AFB_ERROR ("LuaAfbEventPush-Fail name subscriber event=%s count=%d", afbevt->name, afbevt->count);
-        goto OnErrorExit;
-    }
-    afbevt->count++;
-    return 0;
-
-  OnErrorExit:
-        lua_error(luaState);
-        return 1;
-}
-
-STATIC int LuaAfbEventMake(lua_State* luaState) {
-    int count = lua_gettop(luaState);
-    LuaAfbEvent *afbevt=calloc(1,sizeof(LuaAfbEvent));
-
-    if (count != LUA_FIST_ARG || !lua_isstring(luaState, LUA_FIST_ARG)) {
-        lua_pushliteral (luaState, "LuaAfbEventMake-Syntax is evtHandle= AFB:event ('myEventName')");
-        goto OnErrorExit;
-    }
-
-    // event name should be the only argument
-    afbevt->name= strdup (lua_tostring(luaState,LUA_FIST_ARG));
-
-    // create a new binder event
-    afbevt->event = afb_daemon_make_event(afbevt->name);
-    if (!afb_event_is_valid(afbevt->event)) {
-        lua_pushliteral (luaState, "LuaAfbEventMake-Fail to Create Binder event");
-        goto OnErrorExit;
-    }
-
-    // push event handler as a LUA opaque handle
-    lua_pushlightuserdata(luaState, afbevt);
-    return 1;
-
-  OnErrorExit:
-        lua_error(luaState);
-        return 1;
-}
-
-// Function call from LUA when lua2c plugin L2C is used
-PUBLIC int Lua2cWrapper(lua_State* luaState, char *funcname, Lua2cFunctionT callback, void *context) {
-
-    json_object *argsJ= LuaPopArgs(luaState, LUA_FIST_ARG+1);
-    int response = (*callback) (funcname, argsJ, context);
-
-    // push response to LUA
-    lua_pushinteger(luaState, response);
-    return 1;
-}
-
-// Generated some fake event based on watchdog/counter
-PUBLIC int LuaCallFunc (DispatchSourceT source, DispatchActionT *action, json_object *queryJ) {
-
-    int err, count;
-
-    json_object* argsJ  = action->argsJ;
-    const char*  func   = action->call;
-
-    // load function (should exist in CONTROL_PATH_LUA
-    lua_getglobal(luaState, func);
-
-    // push source on the stack
-    count=1;
-    lua_pushinteger(luaState, source);
-
-    // push argsJ on the stack
-    if (!argsJ) {
-        lua_pushnil(luaState);
-        count++;
-    } else {
-        count+= LuaPushArgument (argsJ);
-    }
-
-    // push queryJ on the stack
-    if (!queryJ) {
-        lua_pushnil(luaState);
-        count++;
-    } else {
-        count+= LuaPushArgument (queryJ);
-    }
-
-    // effectively exec LUA script code
-    err=lua_pcall(luaState, count, 1, 0);
-    if (err)  {
-        AFB_ERROR("LuaCallFunc Fail calling %s error=%s", func, lua_tostring(luaState,-1));
-        goto OnErrorExit;
-    }
-
-    // return LUA script value
-    int rc= (int)lua_tointeger(luaState, -1);
-    return rc;
-
-  OnErrorExit:
-    return -1;
-}
-
-
-// Execute LUA code from received API request
-STATIC void LuaDoAction (LuaDoActionT action, afb_req request) {
-
-    int err, count=0;
-
-    json_object* queryJ = afb_req_json(request);
-
-    switch (action) {
-
-        case LUA_DOSTRING: {
-            const char *script = json_object_get_string(queryJ);
-            err=luaL_loadstring(luaState, script);
-            if (err) {
-                AFB_ERROR ("LUA-DO-COMPILE:FAIL String=%s err=%s", script, lua_tostring(luaState,-1) );
-                goto OnErrorExit;
-            }
-            // Push AFB client context on the stack
-            LuaAfbContextT *afbContext= LuaCtxPush(luaState, request,NULL,script);
-            if (!afbContext) goto OnErrorExit;
-
-            break;
-        }
-
-        case LUA_DOCALL: {
-            const char *func;
-            json_object *argsJ=NULL;
-
-            err= wrap_json_unpack (queryJ, "{s:s, s?o !}", "target", &func, "args", &argsJ);
-            if (err) {
-                AFB_ERROR ("LUA-DOCALL-SYNTAX missing target|args query=%s", json_object_get_string(queryJ));
-                goto OnErrorExit;
-            }
-
-            // load function (should exist in CONTROL_PATH_LUA
-            lua_getglobal(luaState, func);
-
-            // Push AFB client context on the stack
-            LuaAfbContextT *afbContext= LuaCtxPush(luaState, request, NULL, func);
-            if (!afbContext) goto OnErrorExit;
-
-            // push query on the stack
-            if (!argsJ) {
-                lua_pushnil(luaState);
-                count++;
-            } else {
-                count+= LuaPushArgument (argsJ);
-            }
-
-            break;
-        }
-
-        case LUA_DOSCRIPT: {   // Fulup need to fix argument passing
-            char *filename; char*fullpath;
-            char luaScriptPath[CONTROL_MAXPATH_LEN];
-            int index;
-
-            // scan luascript search path once
-            static json_object *luaScriptPathJ =NULL;
-
-            // extract value from query
-            const char *target=NULL,*func=NULL;
-            json_object *argsJ=NULL;
-            err= wrap_json_unpack (queryJ, "{s:s,s?s,s?s,s?o !}","target", &target,"path",&luaScriptPathJ,"function",&func,"args",&argsJ);
-            if (err) {
-                AFB_ERROR ("LUA-DOSCRIPT-SYNTAX:missing target|[path]|[function]|[args] query=%s", json_object_get_string(queryJ));
-                goto OnErrorExit;
-            }
-
-            // search for filename=script in CONTROL_LUA_PATH
-            if (!luaScriptPathJ)  {
-                strncpy(luaScriptPath,CONTROL_DOSCRIPT_PRE, sizeof(luaScriptPath));
-                strncat(luaScriptPath,"-", sizeof(luaScriptPath)-strlen(luaScriptPath)-1);
-                strncat(luaScriptPath,target, sizeof(luaScriptPath)-strlen(luaScriptPath)-1);
-                luaScriptPathJ= ScanForConfig(CONTROL_LUA_PATH , CTL_SCAN_RECURSIVE,luaScriptPath,".lua");
-            }
-            for (index=0; index < json_object_array_length(luaScriptPathJ); index++) {
-                json_object *entryJ=json_object_array_get_idx(luaScriptPathJ, index);
-
-                err= wrap_json_unpack (entryJ, "{s:s, s:s !}", "fullpath",  &fullpath,"filename", &filename);
-                if (err) {
-                    AFB_ERROR ("LUA-DOSCRIPT-SCAN:HOOPs invalid config file path = %s", json_object_get_string(entryJ));
-                    goto OnErrorExit;
-                }
-
-                if (index > 0) AFB_WARNING("LUA-DOSCRIPT-SCAN:Ignore second script=%s path=%s", filename, fullpath);
-                else {
-                    strncpy (luaScriptPath, fullpath, sizeof(luaScriptPath));
-                    strncat (luaScriptPath, "/", sizeof(luaScriptPath)-strlen(luaScriptPath)-1);
-                    strncat (luaScriptPath, filename, sizeof(luaScriptPath)-strlen(luaScriptPath)-1);
-                }
-            }
-
-            err= luaL_loadfile(luaState, luaScriptPath);
-            if (err) {
-                AFB_ERROR ("LUA-DOSCRIPT HOOPs Error in LUA loading scripts=%s err=%s", luaScriptPath, lua_tostring(luaState,-1));
-                goto OnErrorExit;
-            }
-
-            // script was loaded we need to parse to make it executable
-            err=lua_pcall(luaState, 0, 0, 0);
-            if (err) {
-                AFB_ERROR ("LUA-DOSCRIPT:FAIL to load %s", luaScriptPath);
-                goto OnErrorExit;
-            }
-
-            // if no func name given try to deduct from filename
-            if (!func && (func=(char*)GetMidleName(filename))!=NULL) {
-                strncpy(luaScriptPath,"_", sizeof(luaScriptPath));
-                strncat(luaScriptPath,func, sizeof(luaScriptPath)-strlen(luaScriptPath)-1);
-                func=luaScriptPath;
-            }
-            if (!func) {
-                AFB_ERROR ("LUA-DOSCRIPT:FAIL to deduct funcname from %s", filename);
-                goto OnErrorExit;
-            }
-
-            // load function (should exist in CONTROL_PATH_LUA
-            lua_getglobal(luaState, func);
-
-            // Push AFB client context on the stack
-            LuaAfbContextT *afbContext= LuaCtxPush(luaState, request, NULL, func);
-            if (!afbContext) goto OnErrorExit;
-
-            // push function arguments
-            if (!argsJ) {
-                lua_pushnil(luaState);
-                count++;
-            } else {
-                count+= LuaPushArgument(argsJ);
-            }
-
-            break;
-        }
-
-        default:
-            AFB_ERROR ("LUA-DOSCRIPT-ACTION unknown query=%s", json_object_get_string(queryJ));
-            goto OnErrorExit;
-    }
-
-    // effectively exec LUA code (afb_reply/fail done later from callback)
-    err=lua_pcall(luaState, count+1, 0, 0);
-    if (err) {
-        AFB_ERROR ("LUA-DO-EXEC:FAIL query=%s err=%s", json_object_get_string(queryJ), lua_tostring(luaState,-1));
-        goto OnErrorExit;
-    }
-    return;
-
- OnErrorExit:
-    afb_req_fail(request,"LUA:ERROR", lua_tostring(luaState,-1));
-    return;
-}
-
-PUBLIC void ctlapi_execlua (afb_req request) {
-    LuaDoAction (LUA_DOSTRING, request);
-}
-
-PUBLIC void ctlapi_request (afb_req request) {
-    LuaDoAction (LUA_DOCALL, request);
-}
-
-PUBLIC void ctlapi_debuglua (afb_req request) {
-    LuaDoAction (LUA_DOSCRIPT, request);
-}
-
-STATIC int LuaTimerClear (lua_State* luaState) {
-
-    // Get Timer Handle
-    LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
-    if (!afbContext) goto OnErrorExit;
-
-    // retrieve useful information opaque handle
-    TimerHandleT *timerHandle = (TimerHandleT*)afbContext->handle;
-
-    AFB_NOTICE ("LuaTimerClear timer=%s", timerHandle->label);
-    TimerEvtStop(timerHandle);
-
-    return 0; //happy end
-
-OnErrorExit:
-    return 1;
-}
-STATIC int LuaTimerGet (lua_State* luaState) {
-
-    // Get Timer Handle
-    LuaAfbContextT *afbContext= LuaCtxCheck(luaState, LUA_FIST_ARG);
-    if (!afbContext) goto OnErrorExit;
-
-    // retrieve useful information opaque handle
-    TimerHandleT *timerHandle = (TimerHandleT*)afbContext->handle;
-
-    // create response as a JSON object
-    json_object *responseJ= json_object_new_object();
-    json_object_object_add(responseJ,"label", json_object_new_string(timerHandle->label));
-    json_object_object_add(responseJ,"delay", json_object_new_int(timerHandle->delay));
-    json_object_object_add(responseJ,"count", json_object_new_int(timerHandle->count));
-
-    // return JSON object as Lua table
-    int count=LuaPushArgument(responseJ);
-
-    // free json object
-    json_object_put(responseJ);
-
-    return count; // return argument
-
-OnErrorExit:
-    return 0;
-}
-
-// Timer Callback
-
-// Set timer
-STATIC int LuaTimerSetCB (void *handle) {
-    LuaCallServiceT *contextCB =(LuaCallServiceT*) handle;
-    TimerHandleT *timerHandle = (TimerHandleT*) contextCB->handle;
-    int count;
-
-    // push timer handle and user context on Lua stack
-    lua_getglobal(luaState, contextCB->callback);
-
-    // Push timer handle
-    LuaAfbContextT *afbContext= LuaCtxPush(luaState, NULL_AFBREQ, contextCB->handle, timerHandle->label);
-    if (!afbContext) goto OnErrorExit;
-    count=1;
-
-    // Push user Context
-    count+= LuaPushArgument(contextCB->context);
-
-    int err=lua_pcall(luaState, count, LUA_MULTRET, 0);
-    if (err) {
-        AFB_ERROR ("LUA-TIMER-CB:FAIL response=%s err=%s", json_object_get_string(contextCB->context), lua_tostring(luaState,-1));
-        goto OnErrorExit;
-    }
-
-    // get return parameter
-    if (!lua_isboolean(luaState, -1)) {
-        return (lua_toboolean(luaState, -1));
-    }
-
-    // timer last run free context resource
-    if (timerHandle->count == 1) {
-        LuaCtxFree(afbContext);
-    }
-    return 0;  // By default we are happy
-
- OnErrorExit:
-    return 1;  // stop timer
-}
-
-STATIC int LuaTimerSet(lua_State* luaState) {
-    const char *label=NULL, *info=NULL;
-    int delay=0, count=0;
-
-    json_object *timerJ = LuaPopOneArg(luaState, LUA_FIST_ARG);
-    const char *callback = lua_tostring(luaState, LUA_FIST_ARG + 1);
-    json_object *contextJ = LuaPopOneArg(luaState, LUA_FIST_ARG + 2);
-
-    if (lua_gettop(luaState) != LUA_FIST_ARG+2 || !timerJ || !callback || !contextJ) {
-        lua_pushliteral(luaState, "LuaTimerSet-Syntax timerset (timerT, 'callback', contextT)");
-        goto OnErrorExit;
-    }
-
-    int err = wrap_json_unpack(timerJ, "{ss, s?s si, si !}", "label", &label, "info", &info, "delay", &delay, "count", &count);
-    if (err) {
-        lua_pushliteral(luaState, "LuaTimerSet-Syntax timerT={label:xxx delay:ms, count:xx}");
-        goto OnErrorExit;
-    }
-
-    // everything look fine create timer structure
-    TimerHandleT *timerHandle = malloc (sizeof (TimerHandleT));
-    timerHandle->delay=delay;
-    timerHandle->count=count;
-    timerHandle->label=label;
-
-    // Allocate handle to store context and callback
-    LuaCallServiceT *contextCB = calloc (1, sizeof(LuaCallServiceT));
-    contextCB->callback= callback;
-    contextCB->context = contextJ;
-    contextCB->handle  = timerHandle;
-
-    // fire timer
-    TimerEvtStart (timerHandle, LuaTimerSetCB, contextCB);
-
-    return 0;  // Happy No Return Function
-
-OnErrorExit:
-    lua_error(luaState);
-    return 1; // return error code
-}
-
-// Register a new L2c list of LUA user plugin commands
-PUBLIC void LuaL2cNewLib(const char *label, luaL_Reg *l2cFunc, int count) {
-    // luaL_newlib(luaState, l2cFunc); macro does not work with pointer :(
-    luaL_checkversion(luaState);
-    lua_createtable(luaState, 0, count+1);
-    luaL_setfuncs(luaState,l2cFunc,0);
-    lua_setglobal(luaState, label);
-}
-
-static const luaL_Reg afbFunction[] = {
-    {"timerclear", LuaTimerClear},
-    {"timerget"  , LuaTimerGet},
-    {"timerset"  , LuaTimerSet},
-    {"notice"    , LuaPrintNotice},
-    {"info"      , LuaPrintInfo},
-    {"warning"   , LuaPrintWarning},
-    {"debug"     , LuaPrintDebug},
-    {"error"     , LuaPrintError},
-    {"servsync"  , LuaAfbServiceSync},
-    {"service"   , LuaAfbService},
-    {"success"   , LuaAfbSuccess},
-    {"fail"      , LuaAfbFail},
-    {"subscribe" , LuaAfbEventSubscribe},
-    {"evtmake"   , LuaAfbEventMake},
-    {"evtpush"   , LuaAfbEventPush},
-
-    {NULL, NULL}  /* sentinel */
-};
-
-// Create Binding Event at Init
-PUBLIC int LuaLibInit () {
-    int err, index;
-
-    // search for default policy config file
-    char fullprefix[CONTROL_MAXPATH_LEN];
-    strncpy (fullprefix, CONTROL_CONFIG_PRE "-", sizeof(fullprefix));
-    strncat (fullprefix, GetBinderName(), sizeof(fullprefix)-strlen(fullprefix)-1);
-    strncat (fullprefix, "-", sizeof(fullprefix)-strlen(fullprefix)-1);
-
-    const char *dirList= getenv("CONTROL_LUA_PATH");
-    if (!dirList) dirList=CONTROL_LUA_PATH;
-
-    json_object *luaScriptPathJ = ScanForConfig(dirList , CTL_SCAN_RECURSIVE, fullprefix, "lua");
-
-    // open a new LUA interpretor
-    luaState = luaL_newstate();
-    if (!luaState)  {
-        AFB_ERROR ("LUA_INIT: Fail to open lua interpretor");
-        goto OnErrorExit;
-    }
-
-    // load auxiliary libraries
-    luaL_openlibs(luaState);
-
-    // redirect print to AFB_NOTICE
-    luaL_newlib(luaState, afbFunction);
-    lua_setglobal(luaState, "AFB");
-
-    // create default lua event to send test pause/resume
-    luaDefaultEvt=calloc(1,sizeof(LuaAfbEvent));
-    luaDefaultEvt->name=CONTROL_LUA_EVENT;
-    luaDefaultEvt->event = afb_daemon_make_event(CONTROL_LUA_EVENT);
-    if (!afb_event_is_valid(luaDefaultEvt->event)) {
-        AFB_ERROR ("POLCTL_INIT: Cannot register lua-events=%s ", CONTROL_LUA_EVENT);
-        goto OnErrorExit;;
-    }
-
-    // load+exec any file found in LUA search path
-    for (index=0; index < json_object_array_length(luaScriptPathJ); index++) {
-        json_object *entryJ=json_object_array_get_idx(luaScriptPathJ, index);
-
-        char *filename; char*fullpath;
-        err= wrap_json_unpack (entryJ, "{s:s, s:s !}", "fullpath",  &fullpath,"filename", &filename);
-        if (err) {
-            AFB_ERROR ("LUA-INIT HOOPs invalid config file path = %s", json_object_get_string(entryJ));
-            goto OnErrorExit;
-        }
-
-        char filepath[CONTROL_MAXPATH_LEN];
-        strncpy(filepath, fullpath, sizeof(filepath));
-        strncat(filepath, "/", sizeof(filepath)-strlen(filepath)-1);
-        strncat(filepath, filename, sizeof(filepath)-strlen(filepath)-1);
-        err= luaL_loadfile(luaState, filepath);
-        if (err) {
-            AFB_ERROR ("LUA-LOAD HOOPs Error in LUA loading scripts=%s err=%s", filepath, lua_tostring(luaState,-1));
-            goto OnErrorExit;
-        }
-
-        // exec/compil script
-        err = lua_pcall(luaState, 0, 0, 0);
-        if (err) {
-            AFB_ERROR ("LUA-LOAD HOOPs Error in LUA exec scripts=%s err=%s", filepath, lua_tostring(luaState,-1));
-            goto OnErrorExit;
-        }
-    }
-
-    // no policy config found remove control API from binder
-    if (index == 0)  {
-        AFB_WARNING ("POLICY-INIT:WARNING (setenv CONTROL_LUA_PATH) No LUA '%s*.lua' in '%s'", fullprefix, dirList);
-    }
-
-    AFB_DEBUG ("Audio control-LUA Init Done");
-    return 0;
-
- OnErrorExit:
-    return 1;
-}