#ifndef _DBXML_HELPER_H_
#define _DBXML_HELPER_H_

#include <DbXml.hpp>
#include <set>
#include "pthread.h"

extern "C" {
    struct XmlQueryExpressionInfo;

    struct XmlManagerInfo {
        XmlManagerInfo();
        ~XmlManagerInfo();

        pthread_mutex_t mutex;
        DbXml::XmlManager mgr;
        std::set<XmlQueryExpressionInfo*> queryExpressions;
    };

    struct XmlQueryExpressionInfo {
        XmlQueryExpressionInfo(
            DbXml::XmlQueryExpression qe,
            XmlManagerInfo* mi);
        ~XmlQueryExpressionInfo();

        DbXml::XmlQueryExpression qe;
        XmlManagerInfo* mi;
    };

    int _xmlManager(DbEnv* dbenv, u_int32_t flags, XmlManagerInfo** mgr);
    void _xmlManager_close(XmlManagerInfo* mgr);
    int _xmlManager_openContainer(XmlManagerInfo* mgr, const char* name, u_int32_t flags,
        int cType, int mode, DbXml::XmlContainer*** container);
    void _xmlContainer_delete(DbXml::XmlContainer** cont);
    void _xmlContainer_close(DbXml::XmlContainer** cont);
    int _xmlManager_createTransaction(XmlManagerInfo* mgr, u_int32_t flags, DbXml::XmlTransaction** trans);
    int _xmlManager_createTransaction_DbTxn(XmlManagerInfo* mgr, DbTxn** dbtxnp, DbXml::XmlTransaction** trans);
    void _xmlTransaction_delete(DbXml::XmlTransaction* trans);
    int _xmlTransaction_commit(DbXml::XmlTransaction* trans);
    int _xmlTransaction_abort(DbXml::XmlTransaction* trans);
    int _xmlContainer_getDocument(DbXml::XmlContainer** cont, DbXml::XmlTransaction* trans,
        const char* key, u_int32_t flags, DbXml::XmlDocument** doc);
    char* _xmlContainer_getName(DbXml::XmlContainer** cont);
    void _deleteString(char* str);
    void _xmlDocument_delete(DbXml::XmlDocument* doc);
    int _xmlDocument_getContent(DbXml::XmlDocument* doc, char** str, int* length);
    int _xmlManager_createQueryContext(XmlManagerInfo* mgr, int rt, int ev, DbXml::XmlQueryContext** ctx);
    void _xmlQueryContext_delete(DbXml::XmlQueryContext* ctx);
    void _xmlResults_delete(DbXml::XmlResults* res);
    int _xmlResults_hasNext(DbXml::XmlResults* res, int* answer);
    int _xmlResults_nextDocument(DbXml::XmlResults* res, DbXml::XmlDocument** doc);
    int _xmlResults_nextValue(DbXml::XmlResults* res, DbXml::XmlValue** val);
    int _xmlManager_query(XmlManagerInfo* mgr, DbXml::XmlTransaction* trans,
        const char* query, DbXml::XmlQueryContext* ctx, u_int32_t flags, DbXml::XmlResults** res);
    void _xmlQueryExpression_delete(XmlQueryExpressionInfo* exp);
    int _xmlManager_prepare(XmlManagerInfo* mgr, DbXml::XmlTransaction* trans,
        const char* query, DbXml::XmlQueryContext* ctx, XmlQueryExpressionInfo** exp);
    int _xmlQueryContext_setDefaultCollection(DbXml::XmlQueryContext* ctx, const char* coll);
    int _xmlQueryContext_setVariableValue(DbXml::XmlQueryContext* ctx, const char* name, DbXml::XmlValue* value);
    void _xmlValue_delete(DbXml::XmlValue* exp);
    DbXml::XmlValue* _xmlNone();
    DbXml::XmlValue* _xmlString(const char* text);
    DbXml::XmlValue* _xmlBool(int value);
    DbXml::XmlValue* _xmlDouble(double value);
    int _xmlValue_asString(DbXml::XmlValue* value, char** str);
    int _xmlQueryExpression_execute(XmlQueryExpressionInfo* exp, DbXml::XmlTransaction* trans,
        DbXml::XmlValue* contextItem, DbXml::XmlQueryContext* qctx, u_int32_t flags, DbXml::XmlResults** res);
    int _xmlManager_createDocument(XmlManagerInfo* mgr, DbXml::XmlDocument** doc);
    int _xmlDocument_getName(DbXml::XmlDocument* doc, char** name);
    int _xmlDocument_setName(DbXml::XmlDocument* doc, const char* name);
    void _xmlUpdateContext_delete(DbXml::XmlUpdateContext* ctx);
    int _xmlManager_createUpdateContext(XmlManagerInfo* mgr, DbXml::XmlUpdateContext** ctx);
    int _xmlDocument_setContent(DbXml::XmlDocument* doc, const char* text, unsigned int length);
    int _xmlContainer_updateDocument(DbXml::XmlContainer** cont, DbXml::XmlTransaction* trans,
        DbXml::XmlDocument* doc, DbXml::XmlUpdateContext* uctx);
    int _xmlContainer_putDocument(DbXml::XmlContainer** cont, DbXml::XmlTransaction* trans,
        DbXml::XmlDocument* doc, DbXml::XmlUpdateContext* uctx, u_int32_t flags);
    int _xmlContainer_deleteDocument(DbXml::XmlContainer** cont, DbXml::XmlTransaction* trans,
        DbXml::XmlDocument* doc, DbXml::XmlUpdateContext* uctx);
}

#endif