aqhome: completed adapting to msgio2 interface.
This commit is contained in:
Martin Preuss
274
apps/aqhome-mqttlog/messages.c
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274
apps/aqhome-mqttlog/messages.c
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/****************************************************************************
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* This file is part of the project AqHome.
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* AqHome (c) by 2023 Martin Preuss, all rights reserved.
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*
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* The license for this file can be found in the file COPYING which you
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* should have received along with this file.
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****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "./messages.h"
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#include "aqhome/mqtt/msg_mqtt_publish.h"
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#include <gwenhywfar/json_read.h>
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#include <gwenhywfar/db.h>
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#include <gwenhywfar/directory.h>
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#include <gwenhywfar/text.h>
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#include <gwenhywfar/debug.h>
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static const ITEM *_getItemForTopic(const ITEM_LIST *itemList, const char *topic);
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void _handlePublishMsg(const char *baseFolder, const ITEM_LIST *itemList, const GWEN_MSG *msg);
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void _handlePublish(const char *baseFolder, const ITEM_LIST *itemList, const char *topic, const char *value);
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void _handleRawMsgForItem(const char *baseFolder, const ITEM *item, const char *value);
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void _handleJsonMsgForItem(const char *baseFolder, const ITEM *item, const char *value);
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void _handleJsonItemVar(const char *baseFolder, const ITEM *item, const ITEMVAR *itemVar, GWEN_JSON_ELEM *jeRoot);
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void _writeValueAccordingToItem(const char *baseFolder, const ITEM *item, const ITEMVAR *itemVar, const char *value);
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void _writeToFile(const char *filename, const char *txt);
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ITEM_LIST *AqHomeMqttLog_ReadItems(GWEN_DB_NODE *dbArgs)
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{
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const char *itemFile;
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itemFile=GWEN_DB_GetCharValue(dbArgs, "itemfile", 0, NULL);
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if (itemFile && *itemFile) {
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ITEM_LIST *itemList;
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GWEN_DB_NODE *dbItemList;
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GWEN_DB_NODE *dbItem;
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int rv;
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dbItemList=GWEN_DB_Group_new("items");
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rv=GWEN_DB_ReadFile(dbItemList, itemFile,
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GWEN_DB_FLAGS_DEFAULT |
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GWEN_PATH_FLAGS_CREATE_GROUP |
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GWEN_DB_FLAGS_ALLOW_EMPTY_STREAM);
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if (rv<0) {
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DBG_ERROR(NULL, "Error reading item file \"%s\" (%d)", itemFile, rv);
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GWEN_DB_Group_free(dbItemList);
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return NULL;
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}
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itemList=Item_List_new();
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dbItem=GWEN_DB_FindFirstGroup(dbItemList, "item");
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while(dbItem) {
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ITEM *item;
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item=Item_fromDb(dbItem);
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Item_List_Add(item, itemList);
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dbItem=GWEN_DB_FindNextGroup(dbItem, "item");
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}
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GWEN_DB_Group_free(dbItemList);
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if (Item_List_GetCount(itemList)==0) {
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DBG_INFO(NULL, "No items in file");
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Item_List_free(itemList);
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return NULL;
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}
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return itemList;
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}
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return NULL;
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}
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void AqHomeMqttLog_HandlePublishMsg(const char *baseFolder, const ITEM_LIST *itemList, const GWEN_MSG *msg)
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{
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char *topic;
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char *value;
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topic=AQH_PublishMqttMsg_ExtractTopic(msg);
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value=AQH_PublishMqttMsg_ExtractValue(msg);
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if (topic && value)
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_handlePublish(baseFolder, itemList, topic, value);
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else {
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DBG_ERROR(NULL, "Either topic or value missing in PUBLISH msg");
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}
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free(value);
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free(topic);
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}
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void _handlePublish(const char *baseFolder, const ITEM_LIST *itemList, const char *topic, const char *value)
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{
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const ITEM *item;
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item=_getItemForTopic(itemList, topic);
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if (item) {
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const char *t;
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DBG_INFO(NULL, "HANDLING topic \"%s\"", topic);
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t=Item_GetDataType(item);
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if (t && strcasecmp(t, "json")==0)
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_handleJsonMsgForItem(baseFolder, item, value);
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else
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_handleRawMsgForItem(baseFolder, item, value);
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}
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else {
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DBG_INFO(NULL, "ignoring topic \"%s\"", topic);
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}
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}
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void _handleJsonMsgForItem(const char *baseFolder, const ITEM *item, const char *value)
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{
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GWEN_JSON_ELEM *jeRoot;
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jeRoot=GWEN_JsonElement_fromString(value);
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if (jeRoot==NULL) {
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DBG_INFO(NULL, "Could not parse JSON value: %s", value);
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}
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else {
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const ITEMVAR_LIST *itemVarList;
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itemVarList=Item_GetVarList(item);
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if (itemVarList) {
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ITEMVAR *itemVar;
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itemVar=ItemVar_List_First(itemVarList);
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while(itemVar) {
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_handleJsonItemVar(baseFolder, item, itemVar, jeRoot);
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itemVar=ItemVar_List_Next(itemVar);
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}
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}
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GWEN_JsonElement_free(jeRoot);
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}
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}
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void _handleJsonItemVar(const char *baseFolder, const ITEM *item, const ITEMVAR *itemVar, GWEN_JSON_ELEM *jeRoot)
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{
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const char *path;
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path=ItemVar_GetPath(itemVar);
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if (path) {
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GWEN_JSON_ELEM *je;
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je=GWEN_JsonElement_GetElementByPath(jeRoot, path, 0);
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if (je) {
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const char *s;
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s=GWEN_JsonElement_GetData(je);
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if (s && *s)
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_writeValueAccordingToItem(baseFolder, item, itemVar, s);
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else {
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DBG_ERROR(NULL, "Path \"%s\" in JSON data contains no data", path);
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}
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}
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else {
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DBG_ERROR(NULL, "Path \"%s\" not found in JSON data", path);
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}
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}
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}
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void _handleRawMsgForItem(const char *baseFolder, const ITEM *item, const char *value)
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{
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const ITEMVAR_LIST *itemVarList;
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itemVarList=Item_GetVarList(item);
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if (itemVarList) {
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ITEMVAR *itemVar;
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itemVar=ItemVar_List_First(itemVarList);
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while(itemVar) {
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_writeValueAccordingToItem(baseFolder, item, itemVar, value);
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itemVar=ItemVar_List_Next(itemVar);
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}
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}
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}
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void _writeValueAccordingToItem(const char *baseFolder, const ITEM *item, const ITEMVAR *itemVar, const char *value)
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{
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const char *id;
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const char *name;
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id=Item_GetId(item);
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name=ItemVar_GetName(itemVar);
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if (id && *id && name && *name) {
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GWEN_BUFFER *fnameBuf;
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fnameBuf=GWEN_Buffer_new(0, 256, 0, 1);
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GWEN_Buffer_AppendString(fnameBuf, baseFolder);
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GWEN_Buffer_AppendString(fnameBuf, GWEN_DIR_SEPARATOR_S);
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GWEN_Buffer_AppendArgs(fnameBuf, "%s_%s", id, name);
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_writeToFile(GWEN_Buffer_GetStart(fnameBuf), value);
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GWEN_Buffer_free(fnameBuf);
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}
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else {
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DBG_ERROR(NULL, "Either id or name missing in item list file");
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}
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}
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void _writeToFile(const char *filename, const char *txt)
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{
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if (txt && *txt) {
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GWEN_BUFFER *tmpNameBuf;
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int rv;
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tmpNameBuf=GWEN_Buffer_new(0, 256, 0, 1);
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GWEN_Buffer_AppendString(tmpNameBuf, filename);
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GWEN_Buffer_AppendString(tmpNameBuf, ".tmp");
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rv=GWEN_Directory_GetPath(GWEN_Buffer_GetStart(tmpNameBuf), GWEN_PATH_FLAGS_VARIABLE);
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if (rv<0) {
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DBG_INFO(AQH_LOGDOMAIN, "Error getting path for %s (%d)", GWEN_Buffer_GetStart(tmpNameBuf), rv);
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}
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else {
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FILE *f;
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f=fopen(GWEN_Buffer_GetStart(tmpNameBuf), "w");
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if (f) {
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if (1!=fwrite(txt, strlen(txt), 1, f)) {
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DBG_ERROR(AQH_LOGDOMAIN, "Error writing.");
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fclose(f);
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}
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else {
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fclose(f);
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rename(GWEN_Buffer_GetStart(tmpNameBuf), filename);
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}
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}
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}
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GWEN_Buffer_free(tmpNameBuf);
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}
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}
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const ITEM *_getItemForTopic(const ITEM_LIST *itemList, const char *topic)
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{
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const ITEM *item;
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item=Item_List_First(itemList);
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while(item) {
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const char *s;
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s=Item_GetTopic(item);
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if (s && GWEN_Text_ComparePattern(topic, s, 0)!=-1)
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return item;
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item=Item_List_Next(item);
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}
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return NULL;
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}
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