自学教程：C++ xmlDocSetRootElement函数代码示例

HRESULT dt_validate(XDR_DT dt, xmlChar const* content){    xmlDocPtr tmp_doc;    xmlNodePtr node;    xmlNsPtr ns;    HRESULT hr;    TRACE("(dt:%s, %s)/n", dt_to_str(dt), wine_dbgstr_a((char const*)content));    if (!datatypes_schema)    {        xmlSchemaParserCtxtPtr spctx;        assert(datatypes_src != NULL);        spctx = xmlSchemaNewMemParserCtxt((char const*)datatypes_src, datatypes_len);        datatypes_schema = Schema_parse(spctx);        xmlSchemaFreeParserCtxt(spctx);    }    switch (dt)    {        case DT_INVALID:            return E_FAIL;        case DT_BIN_BASE64:        case DT_BIN_HEX:        case DT_BOOLEAN:        case DT_CHAR:        case DT_DATE:        case DT_DATE_TZ:        case DT_DATETIME:        case DT_DATETIME_TZ:        case DT_FIXED_14_4:        case DT_FLOAT:        case DT_I1:        case DT_I2:        case DT_I4:        case DT_I8:        case DT_INT:        case DT_NMTOKEN:        case DT_NMTOKENS:        case DT_NUMBER:        case DT_R4:        case DT_R8:        case DT_STRING:        case DT_TIME:        case DT_TIME_TZ:        case DT_UI1:        case DT_UI2:        case DT_UI4:        case DT_UI8:        case DT_URI:        case DT_UUID:            if (!datatypes_schema)            {                ERR("failed to load schema for urn:schemas-microsoft-com:datatypes, "                    "you're probably using an old version of libxml2: " LIBXML_DOTTED_VERSION "/n");                /* Hopefully they don't need much in the way of XDR datatypes support... */                return S_OK;            }            if (content && xmlStrlen(content))            {                tmp_doc = xmlNewDoc(NULL);                node = xmlNewChild((xmlNodePtr)tmp_doc, NULL, dt_to_str(dt), content);                ns = xmlNewNs(node, DT_nsURI, BAD_CAST "dt");                xmlSetNs(node, ns);                xmlDocSetRootElement(tmp_doc, node);                hr = Schema_validate_tree(datatypes_schema, (xmlNodePtr)tmp_doc);                xmlFreeDoc(tmp_doc);            }            else            {   /* probably the node is being created manually and has no content yet */                hr = S_OK;            }            return hr;        default:            FIXME("need to handle dt:%s/n", dt_to_str(dt));            return S_OK;    }}

//!//! Encodes instance metadata (contained in ncInstance struct) in XML//! and writes it to file instance->xmlFilePath (/path/to/instance/instance.xml)//! That file gets processed through tools/libvirt.xsl (/etc/eucalyptus/libvirt.xsl)//! to produce /path/to/instance/libvirt.xml file that is passed to libvirt create.//!//! @param[in] instance a pointer to the instance to generate XML from//!//! @return EUCA_OK if the operation is successful. Known error code returned include EUCA_ERROR.//!//! @see write_xml_file()//!int gen_instance_xml(const ncInstance * instance){    int ret = EUCA_ERROR;    int i = 0;    int j = 0;    char *path = NULL;    char cores_s[10] = "";    char memory_s[10] = "";    char bitness[4] = "";    char root_uuid[64] = "";    char devstr[SMALL_CHAR_BUFFER_SIZE] = "";    xmlNodePtr disk = NULL;    xmlDocPtr doc = NULL;    xmlNodePtr instanceNode = NULL;    xmlNodePtr hypervisor = NULL;    xmlNodePtr backing = NULL;    xmlNodePtr root = NULL;    xmlNodePtr key = NULL;    xmlNodePtr os = NULL;    xmlNodePtr disks = NULL;    xmlNodePtr rootNode = NULL;    xmlNodePtr nics = NULL;    xmlNodePtr nic = NULL;    const virtualBootRecord *vbr = NULL;    INIT();    pthread_mutex_lock(&xml_mutex);    {        doc = xmlNewDoc(BAD_CAST "1.0");        instanceNode = xmlNewNode(NULL, BAD_CAST "instance");        xmlDocSetRootElement(doc, instanceNode);        // hypervisor-related specs        hypervisor = xmlNewChild(instanceNode, NULL, BAD_CAST "hypervisor", NULL);        _ATTRIBUTE(hypervisor, "type", instance->hypervisorType);        _ATTRIBUTE(hypervisor, "capability", hypervsorCapabilityTypeNames[instance->hypervisorCapability]);        snprintf(bitness, 4, "%d", instance->hypervisorBitness);        _ATTRIBUTE(hypervisor, "bitness", bitness);        //! backing specification (@todo maybe expand this with device maps or whatnot?)        backing = xmlNewChild(instanceNode, NULL, BAD_CAST "backing", NULL);        root = xmlNewChild(backing, NULL, BAD_CAST "root", NULL);        assert(instance->params.root);        _ATTRIBUTE(root, "type", ncResourceTypeName[instance->params.root->type]);        _ELEMENT(instanceNode, "name", instance->instanceId);        _ELEMENT(instanceNode, "uuid", instance->uuid);        _ELEMENT(instanceNode, "reservation", instance->reservationId);        _ELEMENT(instanceNode, "user", instance->userId);        _ELEMENT(instanceNode, "dnsName", instance->dnsName);        _ELEMENT(instanceNode, "privateDnsName", instance->privateDnsName);        _ELEMENT(instanceNode, "instancePath", instance->instancePath);        if (instance->params.kernel) {            path = instance->params.kernel->backingPath;            if (path_check(path, "kernel"))                goto free;             // sanity check            _ELEMENT(instanceNode, "kernel", path);        }        if (instance->params.ramdisk) {            path = instance->params.ramdisk->backingPath;            if (path_check(path, "ramdisk"))                goto free;             // sanity check            _ELEMENT(instanceNode, "ramdisk", path);        }        _ELEMENT(instanceNode, "consoleLogPath", instance->consoleFilePath);        _ELEMENT(instanceNode, "userData", instance->userData);        _ELEMENT(instanceNode, "launchIndex", instance->launchIndex);        snprintf(cores_s, sizeof(cores_s), "%d", instance->params.cores);        _ELEMENT(instanceNode, "cores", cores_s);        snprintf(memory_s, sizeof(memory_s), "%d", instance->params.mem * 1024);        _ELEMENT(instanceNode, "memoryKB", memory_s);        // SSH-key related        key = _NODE(instanceNode, "key");        _ATTRIBUTE(key, "isKeyInjected", _BOOL(instance->do_inject_key));        _ATTRIBUTE(key, "sshKey", instance->keyName);        // OS-related specs        os = _NODE(instanceNode, "os");        _ATTRIBUTE(os, "platform", instance->platform);        _ATTRIBUTE(os, "virtioRoot", _BOOL(config_use_virtio_root));        _ATTRIBUTE(os, "virtioDisk", _BOOL(config_use_virtio_disk));        _ATTRIBUTE(os, "virtioNetwork", _BOOL(config_use_virtio_net));//.........这里部分代码省略.........

/** * @brief Retrieve state data from device and return them as XML document * * @param model	Device data model. libxml2 xmlDocPtr. * @param running	Running datastore content. libxml2 xmlDocPtr. * @param[out] err  Double pointer to error structure. Fill error when some occurs. * @return State data as libxml2 xmlDocPtr or NULL in case of error. */xmlDocPtr get_state_data (xmlDocPtr model, xmlDocPtr running, struct nc_err **err){	nc_verb_verbose("get_state_data/n");	nc_verb_verbose("erropt=%u/n", erropt);	xmlDocPtr state;	xmlNodePtr root;	xmlNsPtr ns;	state = xmlNewDoc(BAD_CAST "1.0");	root = xmlNewDocNode(state, NULL, BAD_CAST "capable-switch", NULL);	xmlDocSetRootElement(state, root);	ns = xmlNewNs(root, BAD_CAST "urn:onf:of111:config:yang", NULL);	xmlSetNs(root, ns);	// state that should be queried here	// ### base	// #/ofc:capable-switch/ofc:config-version	xmlNewChild(root, ns, BAD_CAST "config-version", BAD_CAST "1.1.1");//	// ### configuration points//	// ### Resources//	xmlNodePtr resources = xmlNewChild(root, NULL, BAD_CAST "resources", NULL);	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:number	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:current-rate	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:max-rate	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:state	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:state/ofc:oper-state	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:state/ofc:blocked	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:state/ofc:live	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current/ofc:rate	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current/ofc:auto-negotiate	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current/ofc:medium	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:current/ofc:pause	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported/ofc:rate	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported/ofc:auto-negotiate	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported/ofc:medium	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:supported/ofc:pause	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer/ofc:rate	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer/ofc:auto-negotiate	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer/ofc:medium	// #/ofc:capable-switch/ofc:resources/ofc:port/ofc:features/ofc:advertised-peer/ofc:pause	get_port_info(ofc_state.xmp_client_handle, resources, running);	xmlNodePtr lsis = xmlNewChild(root, NULL, BAD_CAST "logical-switches", NULL);	// ### LSIs	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:max-buffered-packets	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:max-tables	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:max-ports	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:flow-statistics	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:table-statistics	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:port-statistics	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-statistics	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:queue-statistics	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:reassemble-ip-fragments	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:block-looping-ports	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:reserved-port-types	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:reserved-port-types/ofc:type	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-types	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-types/ofc:type	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-capabilities	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:group-capabilities/ofc:capability	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:action-types	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:action-types/ofc:type	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:instruction-types	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:capabilities/ofc:instruction-types/ofc:type	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:connection-state	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:current-version	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:supported-versions	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:local-ip-address-in-use	// #/ofc:capable-switch/ofc:logical-switches/ofc:switch/ofc:controllers/ofc:controller/ofc:state/ofc:local-port-in-use	get_lsi_info(ofc_state.xmp_client_handle, lsis, running);	return state;}

int winfo2xmpp(str* to_uri, str* body, str* id){	xmlAttrPtr attr= NULL;	str xmpp_msg;	char* watcher= NULL ;	str from_uri = {0, 0};	xmlDocPtr notify_doc= NULL;	xmlDocPtr doc= NULL;	xmlNodePtr pidf_root= NULL;	xmlNodePtr root_node= NULL;	xmlNodePtr node= NULL;	xmlBufferPtr buffer= NULL;	str watcher_str;	LM_DBG("start.../n");	notify_doc= xmlParseMemory(body->s, body->len);	if(notify_doc== NULL)	{		LM_ERR("while parsing xml memory/n");		return -1;	}	pidf_root= XMLDocGetNodeByName(notify_doc, "watcherinfo", NULL);	if(pidf_root== NULL)	{		LM_ERR("while extracting 'presence' node/n");		goto error;	}	node = XMLNodeGetNodeByName(pidf_root, "watcher", NULL);	for (; node!=NULL; node = node->next)	{		if( xmlStrcasecmp(node->name,(unsigned char*)"watcher"))			continue;		watcher= (char*)xmlNodeGetContent(node->children);		if(watcher== NULL)		{			LM_ERR("while extracting watcher node content/n");			goto error;		}		watcher_str.s = watcher;		watcher_str.len = strlen(watcher);		from_uri.s = xmpp_uri_sip2xmpp(&watcher_str);		if(from_uri.s == NULL)		{			LM_ERR("Failed to transform uri from sip to xmpp/n");			goto error;		}		from_uri.len = strlen(from_uri.s);		xmlFree(watcher);		watcher= NULL;		doc= xmlNewDoc( 0 );		if(doc== NULL)		{			LM_ERR("when creating new xml doc/n");			goto error;		}		root_node = xmlNewNode(NULL, BAD_CAST "presence");		if(root_node== NULL)		{			LM_ERR("when adding new node/n");			goto error;		}		xmlDocSetRootElement(doc, root_node);		attr= xmlNewProp(root_node, BAD_CAST "to", BAD_CAST to_uri->s);		if(attr== NULL)		{			LM_ERR("while adding attribute to_uri/n");			goto error;		}		attr= xmlNewProp(root_node, BAD_CAST "from", BAD_CAST from_uri.s);		if(attr== NULL)		{			LM_ERR("while adding attribute from_uri/n");			goto error;		}		attr= xmlNewProp(root_node, BAD_CAST "type", BAD_CAST "subscribe");		if(attr== NULL)		{			LM_ERR("while adding attribute type/n");			goto error;		}		buffer= xmlBufferCreate();		if(buffer== NULL)		{			LM_ERR("while adding creating new buffer/n");			goto error;		}		xmpp_msg.len= xmlNodeDump(buffer, doc, root_node, 1,1);		if(xmpp_msg.len== -1)		{			LM_ERR("while dumping node/n");			goto error;		}		xmpp_msg.s= (char*)xmlBufferContent( buffer);//.........这里部分代码省略.........

void Settings::save(){	XOJ_CHECK_TYPE(Settings);	if (this->timeoutId)	{		g_source_remove(this->timeoutId);		this->timeoutId = 0;	}	xmlDocPtr doc;	xmlNodePtr root;	xmlNodePtr xmlNode;	xmlIndentTreeOutput = TRUE;	doc = xmlNewDoc((const xmlChar*) "1.0");	if (doc == NULL)	{		return;	}	saveButtonConfig();	/* Create metadata root */	root = xmlNewDocNode(doc, NULL, (const xmlChar*) "settings", NULL);	xmlDocSetRootElement(doc, root);	xmlNodePtr com = xmlNewComment((const xmlChar*)	                               "The Xournal++ settings file. Do not edit this file! "	                               "The most settings are available in the Settings dialog, "	                               "the others are commented in this file, but handle with care!");	xmlAddPrevSibling(root, com);	WRITE_BOOL_PROP(useXinput);	WRITE_BOOL_PROP(presureSensitivity);	WRITE_BOOL_PROP(ignoreCoreEvents);	WRITE_STRING_PROP(selectedToolbar);	WRITE_STRING_PROP(lastSavePath);	WRITE_STRING_PROP(lastImagePath);	WRITE_INT_PROP(displayDpi);	WRITE_INT_PROP(mainWndWidth);	WRITE_INT_PROP(mainWndHeight);	WRITE_BOOL_PROP(maximized);	WRITE_BOOL_PROP(showSidebar);	WRITE_INT_PROP(sidebarWidth);	WRITE_BOOL_PROP(sidebarOnRight);	WRITE_BOOL_PROP(scrollbarOnLeft);	WRITE_BOOL_PROP(showTwoPages);	WRITE_BOOL_PROP(presentationMode);	WRITE_STRING_PROP(fullscreenHideElements);	WRITE_COMMENT("Which gui elements are hidden if you are in Fullscreen mode, separated by a colon (,)");	WRITE_STRING_PROP(presentationHideElements);	WRITE_COMMENT("Which gui elements are hidden if you are in Presentation mode, separated by a colon (,)");	WRITE_BOOL_PROP(showBigCursor);	if (this->scrollbarHideType == SCROLLBAR_HIDE_BOTH)	{		saveProperty((const char*) "scrollbarHideType", "both", root);	}	else if (this->scrollbarHideType == SCROLLBAR_HIDE_HORIZONTAL)	{		saveProperty((const char*) "scrollbarHideType", "horizontal", root);	}	else if (this->scrollbarHideType == SCROLLBAR_HIDE_VERTICAL)	{		saveProperty((const char*) "scrollbarHideType", "vertical", root);	}	else	{		saveProperty((const char*) "scrollbarHideType", "none", root);	}	WRITE_BOOL_PROP(autoloadPdfXoj);	WRITE_COMMENT("Hides scroolbars in the main window, allowed values: /"none/", /"horizontal/", /"vertical/", /"both/"");	WRITE_STRING_PROP(defaultSaveName);	WRITE_STRING_PROP(visiblePageFormats);	WRITE_COMMENT("This paper format is visible in the paper format dialog, separated by a colon");	WRITE_BOOL_PROP(autosaveEnabled);	WRITE_INT_PROP(autosaveTimeout);	WRITE_BOOL_PROP(addHorizontalSpace);	WRITE_BOOL_PROP(addVerticalSpace);	WRITE_BOOL_PROP(fixXinput);	WRITE_BOOL_PROP(enableLeafEnterWorkaround);	WRITE_COMMENT("If Xournal crashes if you e.g. unplug your mouse set this to true. If you have input problems, you can turn it of with false.");	String pageInsertType = pageInsertTypeToString(this->pageInsertType);//.........这里部分代码省略.........

static voidmtev_capabilities_tobuff(mtev_capsvc_closure_t *cl, eventer_func_t curr) {    const char **mod_names;    struct utsname utsn;    char vbuff[128], bwstr[4];    mtev_hash_table *lc;    mtev_hash_iter iter = MTEV_HASH_ITER_ZERO;    const char *k;    int klen, i, nmods;    void *data;    struct timeval now;    struct dso_type *t;    xmlDocPtr xmldoc;    xmlNodePtr root, cmds, bi, ri, mods, feat;    /* fill out capabilities */    /* Create an XML Document */    xmldoc = xmlNewDoc((xmlChar *)"1.0");    root = xmlNewDocNode(xmldoc, NULL, (xmlChar *)capabilities_namespace, NULL);    xmlDocSetRootElement(xmldoc, root);    /* Fill in the document */    mtev_build_version(vbuff, sizeof(vbuff));    xmlNewTextChild(root, NULL, (xmlChar *)"version", (xmlChar *)vbuff);    snprintf(bwstr, sizeof(bwstr), "%d", (int)sizeof(void *)*8);    /* Build info */    bi = xmlNewNode(NULL, (xmlChar *)"unameBuild");    xmlSetProp(bi, (xmlChar *)"bitwidth", (xmlChar *)bwstr);    xmlAddChild(root, bi);    xmlNewTextChild(bi, NULL, (xmlChar *)"sysname", (xmlChar *)UNAME_S);    xmlNewTextChild(bi, NULL, (xmlChar *)"nodename", (xmlChar *)UNAME_N);    xmlNewTextChild(bi, NULL, (xmlChar *)"release", (xmlChar *)UNAME_R);    xmlNewTextChild(bi, NULL, (xmlChar *)"version", (xmlChar *)UNAME_V);    xmlNewTextChild(bi, NULL, (xmlChar *)"machine", (xmlChar *)UNAME_M);    /* Run info */    ri = xmlNewNode(NULL, (xmlChar *)"unameRun");    xmlSetProp(ri, (xmlChar *)"bitwidth", (xmlChar *)bwstr);    xmlAddChild(root, ri);    if(uname(&utsn) < 0) {      xmlNewTextChild(ri, NULL, (xmlChar *)"error", (xmlChar *)strerror(errno));    } else {      xmlNewTextChild(ri, NULL, (xmlChar *)"sysname", (xmlChar *)utsn.sysname);      xmlNewTextChild(ri, NULL, (xmlChar *)"nodename", (xmlChar *)utsn.nodename);      xmlNewTextChild(ri, NULL, (xmlChar *)"release", (xmlChar *)utsn.release);      xmlNewTextChild(ri, NULL, (xmlChar *)"version", (xmlChar *)utsn.version);      xmlNewTextChild(ri, NULL, (xmlChar *)"machine", (xmlChar *)utsn.machine);    }    /* features */    feat = xmlNewNode(NULL, (xmlChar *)"features");    xmlAddChild(root, feat);    if(mtev_hash_size(&features)) {      mtev_hash_iter iter2 = MTEV_HASH_ITER_ZERO;      void *vfv;      const char *f;      int flen;      while(mtev_hash_next(&features, &iter2, &f, &flen, &vfv)) {        xmlNodePtr featnode;        featnode = xmlNewNode(NULL, (xmlChar *)"feature");        xmlSetProp(featnode, (xmlChar *)"name", (xmlChar *)f);        if(vfv) xmlSetProp(featnode, (xmlChar *)"version", (xmlChar *)vfv);        xmlAddChild(feat, featnode);      }    }    /* time (poor man's time check) */    gettimeofday(&now, NULL);    snprintf(vbuff, sizeof(vbuff), "%llu.%03d", (unsigned long long)now.tv_sec,             (int)(now.tv_usec / 1000));    xmlNewTextChild(root, NULL, (xmlChar *)"current_time", (xmlChar *)vbuff);    cmds = xmlNewNode(NULL, (xmlChar *)"services");    xmlAddChild(root, cmds);    lc = mtev_listener_commands();    while(mtev_hash_next(lc, &iter, &k, &klen, &data)) {      xmlNodePtr cnode;      char hexcode[11];      const char *name;      eventer_func_t *f = (eventer_func_t *)k;      mtev_hash_table *sc = (mtev_hash_table *)data;      mtev_hash_iter sc_iter = MTEV_HASH_ITER_ZERO;      const char *sc_k;      int sc_klen;      void *sc_data;      name = eventer_name_for_callback(*f);      cnode = xmlNewNode(NULL, (xmlChar *)"service");      xmlSetProp(cnode, (xmlChar *)"name", name ? (xmlChar *)name : NULL);      if(*f == curr)        xmlSetProp(cnode, (xmlChar *)"connected", (xmlChar *)"true");      xmlAddChild(cmds, cnode);      while(mtev_hash_next(sc, &sc_iter, &sc_k, &sc_klen, &sc_data)) {        xmlNodePtr scnode;        char *name_copy, *version = NULL;        eventer_func_t *f = (eventer_func_t *)sc_data;//.........这里部分代码省略.........

int main(const int argc,         const char ** const argv){    xmlDocPtr doc, request;    xmlNodePtr root, topic_level, topic, request_node;    xmlChar *out;    size_t len;    int ret;    const char *path;    void *context;    void *topic_storage;    char *income;    size_t msg_size;    char endpoint[FIELD_SIZE];    char field[FIELD_SIZE];    FILE *fp;    /**** ****/    if (argc != 2) {        printf("usage: topic_loader file.xml/n");        return OK;    }    printf(">>> [TopicLoader]: selected file: %s/n", argv[1]);    path = argv[1];    /**** ****/    fp = fopen("topic_loader.ini", "r");    if (fp == NULL) {        printf(">>> [TopicLoader]: IO ERROR. can't open /"topic_loader.ini/"/n");        return 1;    }    fscanf(fp,"%s %*s %s", field, endpoint);    printf(">>> [TopicLoader]: field: %s; value: %s;/n", field, endpoint);    fclose(fp);    context = zmq_init(1);    topic_storage = zmq_socket(context, ZMQ_REQ);    zmq_connect(topic_storage, endpoint);    ret = OK;    doc = NULL; root = NULL;    topic_level = NULL; request = NULL;    doc = xmlReadFile(path, NULL, 0);    if (!doc) {        printf(">>> [TopicLoader]: libxml couldn't open the file/n");        return FAIL;    }    root = xmlDocGetRootElement(doc);    if (!root) {        printf(">>> [TopicLoader]: libxml couldn't get root element/n");        return FAIL;    }    topic_level = root->children;    while (topic_level) {        if (strcmp(topic_level->name, "topic")) {            topic_level = topic_level->next;            continue;        }        topic = NULL;        request = NULL;        out = NULL;        request = NULL;        request_node = NULL;        topic = malloc(sizeof(xmlNode));        memcpy(topic, topic_level, sizeof(xmlNode));        topic->next = NULL;        request = xmlNewDoc("1.0");        request_node = xmlNewNode(NULL, "request");        xmlNewProp(request_node, "type", "add_topic");        request_node->children = topic;        xmlDocSetRootElement(request, request_node);        xmlDocDumpFormatMemoryEnc(request, &out, &len, "UTF-8", 1);        printf("%s/n", (char *)out);        s_send(topic_storage, (char *)out, strlen((char *)out) + 1);        income = s_recv(topic_storage, &msg_size);        printf(">>> [TopicLoader]: TS responsed: %s/n", income);        if (request_node) xmlFree(request_node);        if (topic) free(topic);        if (out) xmlFree(out);        topic_level = topic_level->next;    }//.........这里部分代码省略.........

/** * testXmlwriterTree: * @file: the output file * * test the xmlWriter interface when writing to a subtree */voidtestXmlwriterTree(const char *file){    int rc;    xmlTextWriterPtr writer;    xmlDocPtr doc;    xmlNodePtr node;    xmlChar *tmp;    /* Create a new XML DOM tree, to which the XML document will be     * written */    doc = xmlNewDoc(BAD_CAST XML_DEFAULT_VERSION);    if (doc == NULL) {        printf            ("testXmlwriterTree: Error creating the xml document tree/n");        return;    }    /* Create a new XML node, to which the XML document will be     * appended */    node = xmlNewDocNode(doc, NULL, BAD_CAST "EXAMPLE", NULL);    if (node == NULL) {        printf("testXmlwriterTree: Error creating the xml node/n");        return;    }    /* Make ELEMENT the root node of the tree */    xmlDocSetRootElement(doc, node);    /* Create a new XmlWriter for DOM tree, with no compression. */    writer = xmlNewTextWriterTree(doc, node, 0);    if (writer == NULL) {        printf("testXmlwriterTree: Error creating the xml writer/n");        return;    }    /* Start the document with the xml default for the version,     * encoding ISO 8859-1 and the default for the standalone     * declaration. */    rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);    if (rc < 0) {        printf("testXmlwriterTree: Error at xmlTextWriterStartDocument/n");        return;    }    /* Write a comment as child of EXAMPLE.     * Please observe, that the input to the xmlTextWriter functions     * HAS to be in UTF-8, even if the output XML is encoded     * in iso-8859-1 */    tmp = ConvertInput("This is a comment with special chars: <
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