/* * 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. * * references: * https://gist.github.com/ghedo/963382 * http://alsa-utils.sourcearchive.com/documentation/1.0.15/aplay_8c-source.html */ #define _GNU_SOURCE #define BUFFER_FRAME_COUNT 10 /* max frames in buffer */ #define WAIT_TIMER_US 1000000 /* default waiting timer 1s */ #define I2C_MAX_DATA_SZ 32 /* max. number of bytes to be written to i2c */ #define CTRL_MAX_DATA_SZ 45 /* max. number of bytes to be written to control * channel */ #include <systemd/sd-event.h> #include <sys/types.h> #include <sys/stat.h> #include <stdio.h> #include <fcntl.h> #include <string.h> #include <unistd.h> #include <time.h> #include <assert.h> #include <errno.h> #include <dirent.h> #include "ucs_binding.h" #include "ucs_interface.h" #include <wrap-json.h> #define MAX_FILENAME_LEN (100) #define RX_BUFFER (64) #define XML_CONFIG_FOLDER "/var/" #define XML_CONFIG_FILE "config_multichannel_audio_kit.xml" /** Internal structure, enabling multiple instances of this component. * \note Do not access any of this variables. * */ typedef struct { int fileHandle; int fileFlags; char fileName[MAX_FILENAME_LEN]; uint8_t rxBuffer[RX_BUFFER]; uint32_t rxLen; } CdevData_t; typedef struct { CdevData_t rx; CdevData_t tx; UCSI_Data_t ucsiData; UcsXmlVal_t* ucsConfig; } ucsContextT; typedef struct { struct afb_event node_event; } EventData_t; typedef struct { struct afb_event rx_event; } EventDataRx_t; static ucsContextT *ucsContextS = NULL; static EventData_t *eventData = NULL; static EventDataRx_t *eventDataRx = NULL; PUBLIC void UcsXml_CB_OnError(const char format[], uint16_t vargsCnt, ...) { /*AFB_DEBUG (afbIface, format, args); */ va_list args; va_start (args, vargsCnt); vfprintf (stderr, format, args); va_end(args); va_list argptr; char outbuf[300]; va_start(argptr, vargsCnt); vsprintf(outbuf, format, argptr); va_end(argptr); AFB_WARNING ("%s", outbuf); } PUBLIC uint16_t UCSI_CB_OnGetTime(void *pTag) { struct timespec currentTime; uint16_t timer; pTag = pTag; if (clock_gettime(CLOCK_MONOTONIC_RAW, ¤tTime)) { assert(false); return 0; } timer = (uint16_t) ((currentTime.tv_sec * 1000 ) + ( currentTime.tv_nsec / 1000000 )); return(timer); } STATIC int onTimerCB (sd_event_source* source,uint64_t timer, void* pTag) { ucsContextT *ucsContext = (ucsContextT*) pTag; sd_event_source_unref(source); UCSI_Timeout(&ucsContext->ucsiData); return 0; } void UCSI_CB_OnNetworkState(void *pTag, bool isAvailable, uint16_t packetBandwidth, uint8_t amountOfNodes) { AFB_NOTICE ("Network is available=%d, bw=%d, nodeCnt=%d", isAvailable, packetBandwidth, amountOfNodes); } /* UCS2 Interface Timer Callback */ PUBLIC void UCSI_CB_OnSetServiceTimer(void *pTag, uint16_t timeout) { uint64_t usec; /* set a timer with 250ms accuracy */ sd_event_now(afb_daemon_get_event_loop(), CLOCK_BOOTTIME, &usec); sd_event_add_time(afb_daemon_get_event_loop(), NULL, CLOCK_MONOTONIC, usec + (timeout*1000), 250, onTimerCB, pTag); } /** * \brief Callback when ever an Unicens forms a human readable message. * This can be error events or when enabled also debug messages. * \note This function must be implemented by the integrator * \param pTag - Pointer given by the integrator by UCSI_Init * \param format - Zero terminated format string (following printf rules) * \param vargsCnt - Amount of parameters stored in "..." */ void UCSI_CB_OnUserMessage(void *pTag, bool isError, const char format[], uint16_t vargsCnt, ...) { va_list argptr; char outbuf[300]; pTag = pTag; va_start(argptr, vargsCnt); vsprintf(outbuf, format, argptr); va_end(argptr); AFB_NOTICE ("%s",outbuf); } /** UCSI_Service cannot be called directly within UNICENS context, need to service stack through mainloop */ STATIC int OnServiceRequiredCB (sd_event_source *source, uint64_t usec, void *pTag) { ucsContextT *ucsContext = (ucsContextT*) pTag; sd_event_source_unref(source); UCSI_Service(&ucsContext->ucsiData); return (0); } /* UCS Callback fire when ever UNICENS needs to be serviced */ PUBLIC void UCSI_CB_OnServiceRequired(void *pTag) { /* push an asynchronous request for loopback to call UCSI_Service */ sd_event_add_time(afb_daemon_get_event_loop(), NULL, CLOCK_MONOTONIC, 0, 0, OnServiceRequiredCB, pTag); } /* Callback when ever this UNICENS wants to send a message to INIC. */ PUBLIC void UCSI_CB_OnTxRequest(void *pTag, const uint8_t *pData, uint32_t len) { ucsContextT *ucsContext = (ucsContextT*) pTag; CdevData_t *cdevTx = &ucsContext->tx; uint32_t total = 0; if (NULL == pData || 0 == len) return; if (O_RDONLY == cdevTx->fileFlags) return; if (-1 == cdevTx->fileHandle) cdevTx->fileHandle = open(cdevTx->fileName, cdevTx->fileFlags); if (-1 == cdevTx->fileHandle) return; while(total < len) { ssize_t written = write(cdevTx->fileHandle, &pData[total], (len - total)); if (0 >= written) { /* Silently ignore write error (only occur in non-blocking mode) */ break; } total += (uint32_t) written; } } /** UcsXml_FreeVal be called directly within UNICENS context, need to service stack through mainloop */ STATIC int OnStopCB (sd_event_source *source, uint64_t usec, void *pTag) { if (NULL != ucsContextS && NULL != ucsContextS->ucsConfig) { UcsXml_FreeVal(ucsContextS->ucsConfig); ucsContextS->ucsConfig = NULL; } return 0; } /** * \brief Callback when UNICENS instance has been stopped. * \note This event can be used to free memory holding the resources * passed with UCSI_NewConfig * \note This function must be implemented by the integrator * \param pTag - Pointer given by the integrator by UCSI_Init */ void UCSI_CB_OnStop(void *pTag) { AFB_NOTICE ("UNICENS stopped"); /* push an asynchronous request for loopback to call UcsXml_FreeVal */ sd_event_add_time(afb_daemon_get_event_loop(), NULL, CLOCK_MONOTONIC, 0, 0, OnStopCB, pTag); } /* helper function: wraps Rx message in json and triggers notification */ STATIC void NotifyEventRxMsg(uint16_t src_addr, uint16_t msg_id, uint8_t *data_ptr, uint32_t data_sz) { if (!eventDataRx) return; if (data_sz > CTRL_MAX_DATA_SZ) { AFB_NOTICE("RX-MSG: discarded, payload exceeds %d bytes", CTRL_MAX_DATA_SZ); return; } json_object *j_query = NULL; int node = (int)src_addr; int msgid = (int)msg_id; size_t data_size = (size_t)data_sz; /* skip data attribute if possible, wrap_json_unpack may fail to deal with * an empty Base64 string */ if (data_size > 0) wrap_json_pack(&j_query, "{s:i, s:i, s:Y*}", "node", node, "msgid", msgid, "data", data_ptr, data_size); else wrap_json_pack(&j_query, "{s:i, s:i}", "node", node, "msgid", msgid); afb_event_push(eventDataRx->rx_event, j_query); } /** Asynchronous processing of Rx messages in mainloop is recommended */ STATIC int OnAmsMessageReceivedCB (sd_event_source *source, void *pTag) { ucsContextT *ucsContext = (ucsContextT*) pTag; uint32_t data_sz = 0U; uint8_t *data_ptr = NULL; uint16_t msg_id = 0U; uint16_t src_addr = 0U; while (UCSI_GetAmsMessage(&ucsContext->ucsiData, &msg_id, &src_addr, &data_ptr, &data_sz)) { NotifyEventRxMsg(src_addr, msg_id, data_ptr, data_sz); AFB_DEBUG("RX-MSG: src=0x%04X, msg_id=0x%04X, size=%d", src_addr, msg_id, data_sz); UCSI_ReleaseAmsMessage(&ucsContext->ucsiData); } return 0; } /** This callback will be raised, when ever an applicative message on the control channel arrived */ void UCSI_CB_OnAmsMessageReceived(void *pTag) { static sd_event_source *src_ptr = NULL; if (!src_ptr) { /* first time usage: create and trigger event source */ sd_event_add_defer(afb_daemon_get_event_loop(), &src_ptr, &OnAmsMessageReceivedCB, pTag); } else { sd_event_source_set_enabled(src_ptr, SD_EVENT_ONESHOT); } } void UCSI_CB_OnRouteResult(void *pTag, uint16_t routeId, bool isActive, uint16_t connectionLabel) { AFB_NOTICE ("Route 0x%X is active=%d, connection label=0x%X", routeId, isActive, connectionLabel); } void UCSI_CB_OnGpioStateChange(void *pTag, uint16_t nodeAddress, uint8_t gpioPinId, bool isHighState) { AFB_NOTICE ("GPIO state of node 0x%X changed, pin=%d isHigh=%d", nodeAddress, gpioPinId, isHighState); } PUBLIC void UCSI_CB_OnMgrReport(void *pTag, Ucs_MgrReport_t code, uint16_t nodeAddress, Ucs_Rm_Node_t *pNode){ bool available; if (code == UCS_MGR_REP_AVAILABLE) { available = true; } else if (code == UCS_MGR_REP_NOT_AVAILABLE) { available = false; } else { /*untracked event - just exit*/ return; } if (eventData) { json_object *j_event_info = json_object_new_object(); json_object_object_add(j_event_info, "node", json_object_new_int(nodeAddress)); json_object_object_add(j_event_info, "available", json_object_new_boolean(available)); afb_event_push(eventData->node_event, j_event_info); } } bool Cdev_Init(CdevData_t *d, const char *fileName, bool read, bool write) { if (NULL == d || NULL == fileName) goto OnErrorExit; memset(d, 0, sizeof(CdevData_t)); strncpy(d->fileName, fileName, MAX_FILENAME_LEN); d->fileHandle = -1; if (read && write) d->fileFlags = O_RDWR | O_NONBLOCK; else if (read) d->fileFlags = O_RDONLY | O_NONBLOCK; else if (write) d->fileFlags = O_WRONLY | O_NONBLOCK; /* open file to enable event loop */ d->fileHandle = open(d->fileName, d->fileFlags); if (d->fileHandle <= 0) goto OnErrorExit; return true; OnErrorExit: return false; } static bool InitializeCdevs(ucsContextT *ucsContext) { if(!Cdev_Init(&ucsContext->tx, CONTROL_CDEV_TX, false, true)) return false; if(!Cdev_Init(&ucsContext->rx, CONTROL_CDEV_RX, true, false)) return false; return true; } /* Callback fire when something is avaliable on MOST cdev */ int onReadCB (sd_event_source* src, int fileFd, uint32_t revents, void* pTag) { ucsContextT *ucsContext =( ucsContextT*) pTag; ssize_t len; uint8_t pBuffer[RX_BUFFER]; int ok; len = read (ucsContext->rx.fileHandle, &pBuffer, sizeof(pBuffer)); if (0 == len) return 0; ok= UCSI_ProcessRxData(&ucsContext->ucsiData, pBuffer, (uint16_t)len); if (!ok) { AFB_DEBUG ("Buffer overrun (not handle)"); /* Buffer overrun could replay pBuffer */ } return 0; } STATIC char* GetDefaultConfig(void) { char const *data_path = getenv("AFM_APP_INSTALL_DIR"); if (!data_path) { AFB_ERROR("AFM_APP_INSTALL_DIR is not defined"); } else { size_t size; char * config_path; AFB_NOTICE("AFM_APP_INSTALL_DIR is: %s", data_path); size = strlen(data_path) + strlen(XML_CONFIG_FOLDER) + strlen(XML_CONFIG_FILE) + 2; config_path = malloc(size); if (config_path != NULL) { snprintf(config_path, size, "%s%s%s", data_path, XML_CONFIG_FOLDER, XML_CONFIG_FILE); if(access(config_path, R_OK ) == 0) { AFB_NOTICE("Default configuration: %s", config_path); return config_path; } } } return NULL; } STATIC UcsXmlVal_t* ParseFile(const char *filename) { char *xmlBuffer; ssize_t readSize; int fdHandle ; struct stat fdStat; UcsXmlVal_t *ucsConfig = NULL; fdHandle = open(filename, O_RDONLY); if (fdHandle <= 0) { AFB_ERROR("File not accessible: '%s' err=%s", filename, strerror(fdHandle)); goto OnErrorExit; } /* read file into buffer as a \0 terminated string */ fstat(fdHandle, &fdStat); xmlBuffer = (char*)alloca(fdStat.st_size + 1); readSize = read(fdHandle, xmlBuffer, fdStat.st_size); close(fdHandle); xmlBuffer[readSize] = '\0'; /* In any case, terminate it. */ if (readSize != fdStat.st_size) { AFB_ERROR("File to read fullfile '%s' size(%d!=%d)", filename, (int)readSize, (int)fdStat.st_size); goto OnErrorExit; } ucsConfig = UcsXml_Parse(xmlBuffer); if (!ucsConfig) { AFB_ERROR("File XML invalid: '%s'", filename); goto OnErrorExit; } AFB_NOTICE ("Parsing result: %d Nodes, %d Scripts, Ethernet Bandwith %d bytes = %.2f MBit/s", ucsConfig->nodSize, ucsConfig->routesSize, ucsConfig->packetBw, (48 * 8 * ucsConfig->packetBw / 1000.0)); return (ucsConfig); OnErrorExit: return NULL; } PUBLIC int StartConfiguration(const char *filename) { static ucsContextT ucsContext = { 0 }; sd_event_source *evtSource; int err; /* Read and parse XML file */ ucsContext.ucsConfig = ParseFile(filename); if (NULL == ucsContext.ucsConfig) { AFB_ERROR ("Cannot access or load file: '%s'", filename); goto OnErrorExit; } /* When ucsContextS is set, do not initalize UNICENS, CDEVs or system hooks, just load new XML */ if (!ucsContextS) { if (!ucsContextS && !InitializeCdevs(&ucsContext)) { AFB_ERROR ("Fail to initialise device [rx=%s tx=%s]", CONTROL_CDEV_RX, CONTROL_CDEV_TX); goto OnErrorExit; } /* Initialise UNICENS Config Data Structure */ UCSI_Init(&ucsContext.ucsiData, &ucsContext); /* register aplayHandle file fd into binder mainloop */ err = sd_event_add_io(afb_daemon_get_event_loop(), &evtSource, ucsContext.rx.fileHandle, EPOLLIN, onReadCB, &ucsContext); if (err < 0) { AFB_ERROR ("Cannot hook events to mainloop"); goto OnErrorExit; } /* save this in a statical variable until ucs2vol move to C */ ucsContextS = &ucsContext; } /* Initialise UNICENS with parsed config */ if (!UCSI_NewConfig(&ucsContext.ucsiData, ucsContext.ucsConfig)) { AFB_ERROR ("Fail to initialize UNICENS"); goto OnErrorExit; } return 0; OnErrorExit: return -1; } PUBLIC void ucs2_initialise (struct afb_req request) { const char *filename = afb_req_value(request, "filename"); if (!filename) { afb_req_fail_f (request, "filename-missing", "No filename given"); goto OnErrorExit; } if (StartConfiguration(filename) != 0) { afb_req_fail_f (request, "load-failed", "Cannot parse file and start UNICENS"); goto OnErrorExit; } afb_req_success(request,NULL,"UNICENS-active"); OnErrorExit: return; } // List Avaliable Configuration Files PUBLIC void ucs2_listconfig (struct afb_req request) { struct json_object *queryJ, *tmpJ, *responseJ; DIR *dirHandle; char *dirPath, *dirList; int error=0; queryJ = afb_req_json(request); if (queryJ && json_object_object_get_ex (queryJ, "cfgpath" , &tmpJ)) { dirList = strdup (json_object_get_string(tmpJ)); } else { dirList = strdup (UCS2_CFG_PATH); AFB_NOTICE ("fgpath:missing uses UCS2_CFG_PATH=%s", UCS2_CFG_PATH); } responseJ = json_object_new_array(); for (dirPath= strtok(dirList, ":"); dirPath && *dirPath; dirPath=strtok(NULL,":")) { struct dirent *dirEnt; dirHandle = opendir (dirPath); if (!dirHandle) { AFB_NOTICE ("ucs2_listconfig dir=%s not readable", dirPath); error++; continue; } AFB_NOTICE ("ucs2_listconfig scanning: %s", dirPath); while ((dirEnt = readdir(dirHandle)) != NULL) { // Unknown type is accepted to support dump filesystems if (dirEnt->d_type == DT_REG || dirEnt->d_type == DT_UNKNOWN) { struct json_object *pathJ = json_object_new_object(); json_object_object_add(pathJ, "dirpath", json_object_new_string(dirPath)); json_object_object_add(pathJ, "basename", json_object_new_string(dirEnt->d_name)); json_object_array_add(responseJ, pathJ); } } } free (dirList); if (!error) afb_req_success(request,responseJ,NULL); else { char info[40]; snprintf (info, sizeof(info), "[%d] where not scanned", error); afb_req_success(request,responseJ, info); } return; } PUBLIC void ucs2_subscribe (struct afb_req request) { if (!eventData) { eventData = malloc(sizeof(EventData_t)); if (eventData) { eventData->node_event = afb_daemon_make_event ("node-availibility"); } if (!eventData || !afb_event_is_valid(eventData->node_event)) { afb_req_fail_f (request, "create-event", "Cannot create or register event"); goto OnExitError; } } if (afb_req_subscribe(request, eventData->node_event) != 0) { afb_req_fail_f (request, "subscribe-event", "Cannot subscribe to event"); goto OnExitError; } afb_req_success(request,NULL,"event subscription successful"); OnExitError: return; } PUBLIC void ucs2_subscriberx (struct afb_req request) { if (!eventDataRx) { eventDataRx = malloc(sizeof(EventDataRx_t)); if (eventDataRx) { eventDataRx->rx_event = afb_daemon_make_event("rx-message"); } if (!eventDataRx || !afb_event_is_valid(eventDataRx->rx_event)) { afb_req_fail_f(request, "create-event", "Cannot create or register event"); goto OnExitError; } } if (afb_req_subscribe(request, eventDataRx->rx_event) != 0) { afb_req_fail_f (request, "subscribe-event", "Cannot subscribe to event"); goto OnExitError; } afb_req_success(request,NULL,"event subscription successful"); OnExitError: return; } static json_object * ucs2_validate_command (struct afb_req request, const char* func_name) { struct json_object *j_obj = NULL; if (!ucsContextS) { /* check UNICENS is initialized */ afb_req_fail_f(request, "unicens-init", "Load a configuration before calling %s.", func_name); goto OnErrorExit; } j_obj = afb_req_json(request); if (!j_obj) { afb_req_fail_f(request, "query-notjson","query=%s not a valid json entry", afb_req_value(request,"")); goto OnErrorExit; } AFB_DEBUG("request: %s", json_object_to_json_string(j_obj)); if (json_object_get_type(j_obj)==json_type_array) { int len = json_object_array_length(j_obj); if (len == 1) { /* only support 1 command in array */ j_obj = json_object_array_get_idx(j_obj, 0); } else { afb_req_fail_f(request, "query-array", "query of multiple %s commands is not supported", func_name); j_obj = NULL; goto OnErrorExit; } } OnErrorExit: return j_obj; } STATIC void ucs2_writei2c_CB (void *result_ptr, void *request_ptr) { if (request_ptr){ afb_req *req = (afb_req *)request_ptr; Ucs_I2c_ResultCode_t *res = (Ucs_I2c_ResultCode_t *)result_ptr; if (!res) { afb_req_fail(*req, "processing","busy or lost initialization"); } else if (*res != UCS_I2C_RES_SUCCESS){ afb_req_fail_f(*req, "error-result", "result code: %d", *res); } else { afb_req_success(*req, NULL, "success"); } afb_req_unref(*req); free(request_ptr); } else { AFB_NOTICE("write_i2c: ambiguous response data"); } } /* write a single i2c command */ STATIC void ucs2_writei2c_cmd(struct afb_req request, json_object *j_obj) { static uint8_t i2c_data[I2C_MAX_DATA_SZ]; uint8_t i2c_data_sz = 0; uint16_t node_addr = 0; struct afb_req *async_req_ptr = NULL; json_object *j_tmp; json_bool key_found; if (json_object_object_get_ex(j_obj, "node", &j_tmp)) { node_addr = (uint16_t)json_object_get_int(j_tmp); AFB_NOTICE("node_address: 0x%02X", node_addr); if (node_addr == 0) { afb_req_fail_f(request, "query-params","param node invalid type"); goto OnErrorExit; } } else { afb_req_fail_f(request, "query-params","param node missing"); goto OnErrorExit; } key_found = json_object_object_get_ex(j_obj, "data", &j_tmp); if (key_found && (json_object_get_type(j_tmp)==json_type_array)) { int size = json_object_array_length(j_tmp); if ((size > 0) && (size <= I2C_MAX_DATA_SZ)) { int32_t i; int32_t val; struct json_object *j_elem; for (i = 0; i < size; i++) { j_elem = json_object_array_get_idx(j_tmp, i); val = json_object_get_int(j_elem); if ((val < 0) && (val > 0xFF)){ i = 0; break; } i2c_data[i] = (uint8_t)json_object_get_int(j_elem); } i2c_data_sz = (uint8_t)i; } } if (i2c_data_sz == 0) { AFB_NOTICE("data: invalid or not found"); afb_req_fail_f(request, "query-params","params wrong or missing"); goto OnErrorExit; } async_req_ptr = malloc(sizeof(afb_req)); *async_req_ptr = request; if (UCSI_I2CWrite( &ucsContextS->ucsiData, /* UCSI_Data_t *pPriv*/ node_addr, /* uint16_t targetAddress*/ false, /* bool isBurst*/ 0u, /* block count */ 0x2Au, /* i2c slave address */ 0x03E8u, /* timeout 1000 milliseconds */ i2c_data_sz, /* uint8_t dataLen */ &i2c_data[0], /* uint8_t *pData */ &ucs2_writei2c_CB, /* callback*/ (void*)async_req_ptr /* callback argument */ )) { /* asynchronous command is running */ afb_req_addref(request); } else { AFB_NOTICE("i2c write: scheduling command failed"); afb_req_fail_f(request, "query-command-queue","command queue overload"); free(async_req_ptr); async_req_ptr = NULL; goto OnErrorExit; } OnErrorExit: return; } /* parse array or single command */ PUBLIC void ucs2_writei2c (struct afb_req request) { struct json_object *j_obj; j_obj = ucs2_validate_command(request, "writei2c"); if (j_obj) { ucs2_writei2c_cmd(request, j_obj); } } PUBLIC void ucs2_sendmessage(struct afb_req req) { uint8_t *data_ptr = NULL; size_t data_sz = 0; int ret, node_addr, msg_id = 0; struct json_object *j_obj; j_obj = ucs2_validate_command(req, "sendmessageb64"); if (!j_obj) { AFB_NOTICE("validation of command failed"); goto OnErrorExit; } ret = wrap_json_unpack(j_obj, "{s:i, s:i, s?Y}", "node", &node_addr, "msgid", &msg_id, "data", &data_ptr, &data_sz); if ((ret==0) && UCSI_SendAmsMessage(&ucsContextS->ucsiData, msg_id, node_addr, &data_ptr[0], data_sz) ) { afb_req_success(req, NULL, "sendmessageb64 started successful"); } else { AFB_ERROR("sendmessageb64: scheduling command failed. ret: %d", ret); afb_req_fail_f(req, "query-command-queue","ambiguous command or queue overload"); goto OnErrorExit; } OnErrorExit: if (data_ptr) { free(data_ptr); } return; } PUBLIC int ucs2_initbinding(void) { #ifndef DISABLE_AUTOSTART char *filename = GetDefaultConfig(); if (filename != NULL) { AFB_NOTICE("AUTO-LOAD configuration: %s", filename); if (StartConfiguration(filename) == 0) { AFB_NOTICE("AUTO-LOAD successful"); } else { AFB_NOTICE("AUTO-LOAD failed"); } free(filename); } #endif return 0; }