#define _YOYO_DATETIME_BUILTIN
#endif

#include "yoyo.hc"

typedef quad_t datetime_t;

#define Get_Curr_Date()        ((uint_t)(Current_Gmt_Datetime()>>32))
#define Get_Curr_Datetime()    Current_Gmt_Datetime()
#define Get_Posix_Datetime(Dt) Timet_Of_Datetime(Dt)
#define Get_Gmtime_Datetime(T) Gmtime_Datetime(T)
#define Get_System_Useconds()  System_Useconds()
#define Get_System_Millis()    (Get_System_Useconds()/1000)

#define System_Millis() (System_Useconds()/1000)

      #endif
      }
      
    return L;
  }
#endif
  ;

#ifdef __windoze
#define utf8_unlink(S) _wunlink(Str_Utf8_To_Unicode(S));
#else
#define utf8_unlink(S) unlink(S)
#endif

void File_Unlink(char *name, int force)
#ifdef _YOYO_FILE_BUILTIN
  {
    YOYO_FILE_STATS st;
    int i, err = 0;
    

              {
                YOYO_ARRAY *L = File_List_Directory(name,0);
                for ( i = 0; i < L->count; ++i )
                  File_Unlink(Path_Join(name,L->at[i]),force);
                Delete_Directory(name);
              }
            else




              err = utf8_unlink(name);

          }
      
        if ( err < 0 )
          File_Check_Error("unlink",0,name,1); 
      }
  }
#endif

#include "string.hc"

#ifdef _LIBYOYO
#define _YOYO_MIME_BUILTIN
#endif

#ifdef _YOYO_MIME_BUILTIN
  #define _YOYO_MIME_BUILTIN_CODE(Code) Code
  #define _YOYO_MIME_EXTERN 
#else
  #define _YOYO_MIME_BUILTIN_CODE(Code)
  #define _YOYO_MIME_EXTERN extern
#endif

enum
  {
    YOYO_MIME_NONE  = __FOUR_CHARS('`','`','`','`'),
    YOYO_MIME_OCTS  = __FOUR_CHARS('O','C','T','S'),

        case YOYO_MIME_EXE:  return "application/x-msdownload";
        case YOYO_MIME_JSON: return "application/json";
      }
    return "application/octet-stream";
  }
#endif
  ;

_YOYO_MIME_EXTERN char Oj_Mimetype_Of_OjMID[] _YOYO_MIME_BUILTIN_CODE( = "mimetype_of/@"); 
int Oj_Mimetype_Of(void *o) _YOYO_MIME_BUILTIN_CODE(
  { return ((int(*)(void*,void*))Yo_Find_Method_Of(&o,Oj_Mimetype_Of_OjMID,YO_RAISE_ERROR))
        (o); });
  
#endif /* C_once_E5DC0CBD_6EF6_4E8C_A4F5_CF78FA971011 */

/*

Copyright © 2010-2011, Alexéy Sudachén, alexey@sudachen.name, Chile

In USA, UK, Japan and other countries allowing software patents:

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    http://www.gnu.org/licenses/

Otherwise:

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

Except as contained in this notice, the name of a copyright holder shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization of the copyright holder.

*/

#ifndef C_once_63CF3893_FBF5_4DA0_9B2D_792FE7BBBCAB
#define C_once_63CF3893_FBF5_4DA0_9B2D_792FE7BBBCAB

#include "mime.hc"
#include "xdata.hc"

#ifdef _LIBYOYO
#define _YOYO_XDDB_BUILTIN
#endif

#ifdef _YOYO_XDDB_BUILTIN
# define _YOYO_XDDB_BUILTIN_CODE(Code) Code
# define _YOYO_XDDB_EXTERN 
#else
# define _YOYO_XDDB_BUILTIN_CODE(Code)
# define _YOYO_XDDB_EXTERN extern 
#endif

typedef struct _YOYO_XDDB
  {
    int doc_format;
  } YOYO_XDDB;

enum
  {
    YOYO_XDDB_DOC_TEXT   = 'A',
    YOYO_XDDB_DOC_BINARY = 'B',
    YOYO_XDDB_DOC_ZIPPED = 'Z',
    YOYO_XDDB_MAX_KEYLEN = 128,
    YOYO_XDDB_UUID_LENGTH = 9,
  };

char *Xddb_Get_Key(YOYO_XDATA *doc)
#ifdef _YOYO_XDDB_BUILTIN 
  {
    return Xnode_Value_Get_Str(&doc->root,"$key$",0);
  }
#endif
  ;
  
int Xddb_Get_Revision(YOYO_XDATA *doc)
#ifdef _YOYO_XDDB_BUILTIN 
  {
    return Xnode_Value_Get_Int((YOYO_XNODE*)doc,"$rev$",0);
  }
#endif
  ;
  
void Xddb_Set_Revision(YOYO_XDATA *doc, int rev)
#ifdef _YOYO_XDDB_BUILTIN 
  {
    Xnode_Value_Set_Int((YOYO_XNODE*)doc,"$rev$",rev);
  }
#endif
  ;

YOYO_XDATA *Xddb_Binary_Decode(byte_t *at,int count,int zipped)
#ifdef _YOYO_XDDB_BUILTIN 
  {
    YOYO_XDATA *doc = Xdata_Init();
    return doc;
  }
#endif
  ;

void Xddb_Binary_Encode_Into(YOYO_BUFFER *bf, YOYO_XDATA *doc, int zipped)
#ifdef _YOYO_XDDB_BUILTIN 
  {
  }
#endif
  ;

YOYO_BUFFER *Xddb_Encode(YOYO_XDDB *xddb, YOYO_XDATA *doc)
#ifdef _YOYO_XDDB_BUILTIN 
  {
    char prefix[] = ".,.,.,.,_\n\n\n";
    YOYO_BUFFER *bf = Buffer_Init(0);
    
    Unsigned_To_Hex8(Xddb_Get_Revision(doc),prefix);
    prefix[8] = (char)xddb->doc_format;
    Buffer_Append(bf,prefix,12);
    
    if ( xddb->doc_format == YOYO_XDDB_DOC_TEXT )
      Def_Format_Into(bf,&doc->root,0);
    else if ( xddb->doc_format == YOYO_XDDB_DOC_BINARY )
      Xddb_Binary_Encode_Into(bf,doc,0);
    else if ( xddb->doc_format == YOYO_XDDB_DOC_ZIPPED )
      Xddb_Binary_Encode_Into(bf,doc,1);
    else
      __Raise(YOYO_ERROR_INCONSISTENT,__yoTa("unsupported document format",0));
      
    return bf;
  }
#endif
  ;

YOYO_XDATA *Xddb_Decode(YOYO_XDDB *xddb, byte_t *at,int count)
#ifdef _YOYO_XDDB_BUILTIN 
  {
    YOYO_XDATA *doc = 0;
    
    if ( count < 12 ) 
      __Raise(YOYO_ERROR_CORRUPTED,__yoTa("document is corrupted",0));
    
    switch ( at[8] )
      {
        case YOYO_XDDB_DOC_TEXT:
          doc = Def_Parse_Str(at+9); /* Yes, 9! Not 12!! */
          break;
        case YOYO_XDDB_DOC_BINARY:
          doc = Xdata_Co_Binary_Decode(at+12,count-12,0);
          break;
        case YOYO_XDDB_DOC_ZIPPED:
          doc = Xdata_Co_Binary_Decode(at+12,count-12,1);
          break;
        default:
          __Raise(YOYO_ERROR_INCONSISTENT,__yoTa("unsupported document format",0));
      }
    return doc;
  }
#endif
  ;

#define Xddb_Build_Unique_Key() __Pool(Xddb_Build_Unique_Key_Npl());
char *Xddb_Build_Unique_Key_Npl()
#ifdef _YOYO_XDDB_BUILTIN 
  {
    int pid = getpid();
    time_t tmx = time(0);
    double clo = clock();
    
    byte_t uuid[YOYO_XDATA_CO_UUID_LENGTH] = {0,0,0,0,0,0,0,0}; /* 8 bytes garanty */
    char   out[(YOYO_XDATA_CO_UUID_LENGTH*8+5)/6 + 3 ] = {'=','=',0};
    
    Unsigned_To_Two(pid,uuid);
    Unsigned_To_Four((uint_t)tmx,uuid+2);
    Unsigned_To_Two((uint_t)((clo/CLOCKS_PER_SEC)*10000),uuid+6);
    System_Random(uuid+6,sizeof(uuid)-6);
    Str_Xbit_Encode(uuid,sizeof(uuid)*8,6,Str_6bit_Encoding_Table,out+2);
    
    STRICT_REQUIRE( out[sizeof(out)-1] == 0 );
    
    return __Memcopy_Npl(out,sizeof(out));
  }
#endif
  ;

_YOYO_XDDB_EXTERN char Xddb_Delete_OjMID[] _YOYO_XDDB_BUILTIN_CODE( = "xddb_delete/@*"); 
void Xddb_Delete(void *xddb, char *key) _YOYO_XDDB_BUILTIN_CODE(
  { ((void(*)(void*,void*))Yo_Find_Method_Of(&xddb,Xddb_Delete_OjMID,YO_RAISE_ERROR))
        (xddb,key); });

_YOYO_XDDB_EXTERN char Xddb_Get_OjMID[] _YOYO_XDDB_BUILTIN_CODE( = "xddb_get/@**"); 
void *Xddb_Get(void *xddb, char *key, YOYO_XDATA *dflt) _YOYO_XDDB_BUILTIN_CODE(
  { return ((void*(*)(void*,void*,void*))Yo_Find_Method_Of(&xddb,Xddb_Get_OjMID,YO_RAISE_ERROR))
        (xddb,key,dflt); });

_YOYO_XDDB_EXTERN char Xddb_Store_OjMID[] _YOYO_XDDB_BUILTIN_CODE( = "xddb_store/@*i"); 
int Xddb_Store(void *xddb, YOYO_XDATA *doc, int strict_revision) _YOYO_XDDB_BUILTIN_CODE(
  { return ((int(*)(void*,void*,int))Yo_Find_Method_Of(&xddb,Xddb_Store_OjMID,YO_RAISE_ERROR))
        (xddb,doc,strict_revision); });

#define Xddb_Update(Xddb,Doc) Xddb_Store(Xddb,Doc,1)
#define Xddb_Unique(Xddb,Doc) Xddb_Overwrite(Xddb,Doc,0)

int Xddb_Overwrite(YOYO_XDDB *xddb, YOYO_XDATA *doc, char *key)
#ifdef _YOYO_XDDB_BUILTIN 
  {
    if ( key )
      Xnode_Value_Set_Str(&doc->root,"$key$",key);
    else if ( !Xnode_Value_Get_Str(&doc->root,"$key$",0) )
      {
        char *k = Xddb_Build_Unique_Key_Npl();
        Xnode_Value_Put_Str(&doc->root,"$key$",k);
      }
    return Xddb_Store(xddb,doc,0);
  }
#endif
  ;

_YOYO_XDDB_EXTERN char Xddb_Strm_Cancel_OjMID[] _YOYO_XDDB_BUILTIN_CODE( = "xddb_strm_cancel/@"); 
void Xddb_Strm_Cancel(void *strm) _YOYO_XDDB_BUILTIN_CODE(
  { ((void(*)(void*))Yo_Find_Method_Of(&strm,Xddb_Strm_Cancel_OjMID,YO_RAISE_ERROR))
        (strm); });

_YOYO_XDDB_EXTERN char Xddb_Strm_Commit_OjMID[] _YOYO_XDDB_BUILTIN_CODE( = "xddb_strm_commit/@*i"); 
char *Xddb_Strm_Commit(void *strm, char *key, int overwrite) _YOYO_XDDB_BUILTIN_CODE(
  { return ((char*(*)(void*,void*,int))Yo_Find_Method_Of(&strm,Xddb_Strm_Commit_OjMID,YO_RAISE_ERROR))
        (strm,key,overwrite); });

#define Xddb_Strm_Commit_Overwrite(Strm,Key) Xddb_Strm_Commit(Strm,Key,1)
#define Xddb_Strm_Commit_New(Strm,Key) Xddb_Strm_Commit(Strm,Key,0)
#define Xddb_Strm_Commit_Unique(Strm) Xddb_Strm_Commit(Strm,0,0)

_YOYO_XDDB_EXTERN char Xddb_Strm_Open_OjMID[] _YOYO_XDDB_BUILTIN_CODE( = "xddb_strm_open/@*"); 
void *Xddb_Strm_Open(void *xddb, char *key) _YOYO_XDDB_BUILTIN_CODE(
  { return ((void*(*)(void*,void*))Yo_Find_Method_Of(&xddb,Xddb_Strm_Open_OjMID,YO_RAISE_ERROR))
        (xddb,key); });

_YOYO_XDDB_EXTERN char Xddb_Strm_Create_OjMID[] _YOYO_XDDB_BUILTIN_CODE( = "xddb_strm_create/@i"); 
void *Xddb_Strm_Create(void *xddb, int mime) _YOYO_XDDB_BUILTIN_CODE(
  { return ((void*(*)(void*,int))Yo_Find_Method_Of(&xddb,Xddb_Strm_Create_OjMID,YO_RAISE_ERROR))
        (xddb,mime); });

_YOYO_XDDB_EXTERN char Xddb_Strm_Delete_OjMID[] _YOYO_XDDB_BUILTIN_CODE( = "xddb_strm_delete/@*"); 
void Xddb_Strm_Delete(void *xddb,char *key) _YOYO_XDDB_BUILTIN_CODE(
  { ((void(*)(void*,void*))Yo_Find_Method_Of(&xddb,Xddb_Strm_Delete_OjMID,YO_RAISE_ERROR))
        (xddb,key); });

#endif /* C_once_63CF3893_FBF5_4DA0_9B2D_792FE7BBBCAB */

/*

Copyright © 2010-2011, Alexéy Sudachén, alexey@sudachen.name, Chile

In USA, UK, Japan and other countries allowing software patents:

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    http://www.gnu.org/licenses/

Otherwise:

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

Except as contained in this notice, the name of a copyright holder shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization of the copyright holder.

*/

#ifndef C_once_BAF0727D_FCA6_445A_8E5A_0EEAA9374EEF
#define C_once_BAF0727D_FCA6_445A_8E5A_0EEAA9374EEF

#include "xddb.hc"
#include "file.hc"
#include "datetime.hc"

#ifdef _LIBYOYO
#define _YOYO_XDDBFS_BUILTIN
#endif

typedef struct _YOYO_XDDBFS
  {
    YOYO_XDDB xddb;
    char *basepath;
    int  jur_fd;
    int  fs_depth;
  } YOYO_XDDBFS;

void YOYO_XDDBFS_Destruct(YOYO_XDDBFS *xddb)
  {
    if ( xddb->jur_fd >= 0 ) close(xddb->jur_fd);
    free(xddb->basepath);
    __Destruct(xddb);
  };

typedef struct _YOYO_XDDBFS_STREAM
  {
    YOYO_XDDBFS *xddb;
    char *key;
    char *tmp_path;
    int  mimetype;
    int  length;
    int  finished;
    int  fd;
    int  curpos;
  } YOYO_XDDBFS_STREAM;
  
typedef struct _YOYO_XDDBFS_STREAM_HEADER
  {
    char cr;
    char nl;
    char mimetype[4];
    char length[8];
    char lastacs[8];
    char created[8];
    char compressed;
    char keylen[2];
    char key[YOYO_XDDB_MAX_KEYLEN];
    char nulterm;
  } YOYO_XDDBFS_STREAM_HEADER;

void YOYO_XDDBFS_STREAM_Destruct(YOYO_XDDBFS_STREAM *strm)
  {
    if ( strm->tmp_path )
      {
        utf8_unlink(strm->tmp_path);
        free(strm->tmp_path);
      }
    if ( strm->fd >= 0 ) close(strm->fd);
    free(strm->key);
    __Unrefe(strm->xddb);
    __Destruct(strm);    
  };

char *Xddbfs_Tmp_File_Path_Sfx(YOYO_XDDBFS *xdb, char *sfx)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    char *S = Xddb_Build_Unique_Key();
    if ( sfx )
      S = Str_Concat(S,sfx);
    return Str_Join_3('/',xdb->basepath,"tmp",S);
  }
#endif
  ;

char *Xddbfs_File_Path_Sfx_Md5(YOYO_XDDBFS *xddb, byte_t *md5, char *sfx)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    char *S = 0;
    int i;
    char md5_hex[33] = {0};
    char hash[4*3] = "\0\0/\0\0/\0\0/\0\0";
    for ( i = 0; i < 16; ++i )
      Str_Hex_Byte(md5[i],0,md5_hex+i*2);
    if ( !xddb->fs_depth )
      {
        S = Str_Join_2('/',xddb->basepath,md5_hex);
      }
    else
      {
        switch ( xddb->fs_depth )
          {
            case 1:
              {
                byte_t c = Crc_8(0,md5,16);
                Str_Hex_Byte(c,0,hash);
                hash[2] = 0;
                break;
              }
            case 2:
              {
                ushort_t c = Crc_16(0,md5,16);
                for ( i = 0; i < 2; ++i )
                  Str_Hex_Byte((byte_t)(c>>(i*8)),0,hash+i*3);
                hash[5] = 0;
                break;
              }
            default:
              {
                uint_t c = Crc_32(0,md5,16);
                for ( i = 0; i < 4; ++i )
                  Str_Hex_Byte((byte_t)(c>>(i*8)),0,hash+i*3);
                break;
              }
          }
      
        S = Str_Join_3('/',xddb->basepath,hash,md5_hex);
      }
      
    if ( sfx )
      S = Str_Concat(S,sfx);

    return S;
  }
#endif
  ;
  
#define Xddbfs_File_Path(Co,Key) Xddbfs_File_Path_Sfx(Co,Key,0)
char *Xddbfs_File_Path_Sfx(YOYO_XDDBFS *xddb, char *key, char *sfx)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    char *S = 0;
    int i;

    if ( xddb->fs_depth < 0 )
      {
        int L = strlen(key);
        S = Str_Copy(key,L);
        for ( i = 0; i < L; ++i )
          {
            if ( S[i] == '/' )
              S[i] = '|';
            else if ( S[i] == '?' ) 
              S[i] = '&';
            else if ( S[i] == '*' ) 
              S[i] = '+';
          }
        S = Str_Join_2('/',xddb->basepath,S);
        if ( sfx )
          S = Str_Concat(S,sfx);
      }
    else
      {
        byte_t md5[16];
        Md5_Digest(key,strlen(key),md5);
        S = Xddbfs_File_Path_Sfx_Md5(xddb,md5,sfx);
      }
      
    return S;
  }
#endif
  ;

YOYO_BUFFER *Xddbfs_Read_Id(YOYO_XDDBFS *xddb, char *coid, int count)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    YOYO_BUFFER *bf = 0;
    YOYO_FILE_STATS st = {0};
    File_Get_Stats(coid,&st,0);
        
    if ( st.f.exists )
      {
        void *foj = Cfile_Open_Raw(coid,"rb");
        if ( !foj )
          Raise_If_File_Error("open",coid);
        if ( count < 0 )
          bf = Cfile_Read_All(foj);
        else
          {
            bf = Buffer_Init(count);
            Cfile_Read(foj,bf->at,count,count);
          }
        Cfile_Close(foj);
      }
    
    return bf;
  }
#endif
  ;

void Xddbfs_Write_Id(YOYO_XDDBFS *xddb, char *coid, void *data, int count)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    void *foj = Cfile_Open(coid,"w+bP");
    Cfile_Write(foj,data,count,count);
    Cfile_Close(foj);
  }
#endif
  ;

YOYO_XDATA *Xddbfs_Get(YOYO_XDDBFS *xddb, char *key, YOYO_XDATA *dflt)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    YOYO_XDATA *doc = dflt;
    
    __Auto_Ptr(doc)
      {
        char *coid;
        YOYO_BUFFER *bf;
        
        coid = Xddbfs_File_Path(xddb,key);
        __Pfd_Lock(&xddb->jur_fd)
          bf = Xddbfs_Read_Id(xddb,coid,-1);
        
        if ( bf )
          doc = Xddb_Decode(xddb,bf->at,bf->count);
      }
    
    return doc;
  }
#endif
  ;

void Xddbfs_Delete(YOYO_XDDBFS *xddb, char *key)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    __Auto_Release
      {
        char *coid = Xddbfs_File_Path(xddb,key);
        __Pfd_Lock(&xddb->jur_fd)
          File_Unlink(coid,0);
      }
  }
#endif
  ;

int Xddbfs_Store(YOYO_XDDBFS *xddb, YOYO_XDATA *doc, int strict_revision)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    int revision = 0; 
    
    __Auto_Release
      {
        //byte_t md5[16];
        char *key;
        char *coid;
        YOYO_BUFFER *bf;
        
        key = Xnode_Value_Get_Str(&doc->root,"$key$",0);
        if ( !key )
          __Raise(YOYO_ERROR_ILLFORMED,"$key$ property doesn't present or has invalid value");
        
        //Md5_Sign_Data(key,strlen(key),md5);
        coid = Xddbfs_File_Path(xddb,key);
        
        __Pfd_Lock(&xddb->jur_fd)
          {
            bf = Xddbfs_Read_Id(xddb,coid,8);
            if ( bf ) revision = Hex8_To_Unsigned(bf->at);
            
            if ( strict_revision )
              if ( revision && revision != Xdata_Get_Revision(doc) )
                __Raise(YOYO_ERROR_INCONSISTENT,
                  __Format("Inconsistent revision of document '%s', store:%d != docu:%d",
                           coid,
                           revision,
                           Xdata_Get_Revision(doc)));              
            
            ++revision;
            Xdata_Set_Revision(doc,revision);
            bf = Xddb_Encode(xddb,doc);
            Xddbfs_Write_Id(xddb,coid,bf->at,bf->count);
          }
      }
      
    return revision;
  }
#endif
  ;

void Xddbfs_Strm_Delete(YOYO_XDDBFS *co, char *key)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    __Auto_Release
      {
        char *path = Xddbfs_File_Path_Sfx(co,key,".strm");
        File_Unlink(path,0);
      }
  }
#endif
  ;

char *Xddbfs_Strm_Commit(YOYO_XDDBFS_STREAM *strm, char *key, int overwrite)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    __Auto_Ptr(key)
      {
        int keylen; 
        char *coid;
        YOYO_XDATA_CO_FS_STRM_HEADER hdr = {0};
        uint_t now;

        if ( key && strlen(key) > YOYO_XDATA_CO_MAX_FS_KEYLEN )
          __Raise_Format(YOYO_ERROR_ILLFORMED,
              (__yoTa("key to long, max key len is %d symbols",0),YOYO_XDATA_CO_MAX_FS_KEYLEN));
        
        if ( strm->key )
          __Raise(YOYO_ERROR_IO,__yoTa("stream already commited",0));
          
        if ( strm->fd >= 0 )
          {
            now = Get_Curr_Date();
            Unsigned_To_Hex8(now,hdr.created);
            Unsigned_To_Hex8(now,hdr.lastacs);
            hdr.compressed = '.';
            hdr.cr = '\r';
            hdr.nl = '\n';
            hdr.nulterm = '!';
            Unsigned_To_Four(strm->mimetype,hdr.mimetype);

            if ( !key )
              {
                overwrite = 0;
                strm->key = Xddb_Build_Unique_Key_Npl();
              }
            else
              strm->key = Str_Copy_Npl(key,-1);
            
            keylen = strlen(strm->key);
            Unsigned_To_Hex8(strm->length,hdr.length);
            Unsigned_To_Hex2(keylen,hdr.keylen);
            memset(hdr.key,'#',sizeof(hdr.key));
            memcpy(hdr.key,strm->key,keylen);

            Write_Out_Raise(strm->fd,&hdr,sizeof(hdr));

            close(strm->fd);
            strm->fd = -1;
            strm->finished = 1;
            
            coid = Xddbfs_File_Path_Sfx(strm->xddb,strm->key,".strm");
            if ( File_Exists(coid) )
              {
                if ( overwrite ) 
                  File_Unlink(coid,0);
                else
                  __Raise(YOYO_ERROR_IO,__yoTa("stream conflicts with one exist",0));
              }
            Create_Required_Dirs(coid);
            File_Rename(strm->tmp_path,coid);
          }
        else
          __Raise(YOYO_ERROR_IO,__yoTa("stream is not ready",0));
      }
      
    return strm->key;
  }
#endif
  ;

int Xddbfs_Strm_Read(YOYO_XDDBFS_STREAM *strm,void *data, int count,int mincount)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    int i;
    
    if ( !strm->finished )
      __Raise(YOYO_ERROR_ACCESS_DENAIED,__yoTa("writeonly stream!",0));
    if ( strm->fd < 0 )
      __Raise(YOYO_ERROR_IO,__yoTa("stream alrady closed",0));
    if ( count > strm->length - strm->curpos )
      count = strm->length - strm->curpos;
    
    for ( i=0; i<count; )
      {
        int j = read(strm->fd,(char*)data+i,count-i);
        if ( j < 0 )
          {
            int err = errno;
            __Raise(YOYO_ERROR_IO,
              __Format(__yoTa("failed to read stream: %s",0),strerror(err)));
          }
        else if ( j )
          i+=j;
        else
          break;
      }
    
    if ( i < mincount )
      __Raise(YOYO_ERROR_IO_EOF,__yoTa("doesn't have enough bytes",0));
      
    strm->curpos += i;
    return i;
  }
#endif
  ;

int Xddbfs_Strm_Write(YOYO_XDDBFS_STREAM *strm,void *data, int count,int mincount)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    int i;
    
    if ( strm->finished )
      __Raise(YOYO_ERROR_ACCESS_DENAIED,__yoTa("readonly stream!",0));
    if ( strm->fd < 0 )
      __Raise(YOYO_ERROR_IO,__yoTa("stream alrady closed",0));
    
    for ( i=0; i<count; )
      {
        int j = write(strm->fd,(char*)data+i,count-i);
        if ( j < 0 )
          {
            int err = errno;
            __Raise(YOYO_ERROR_IO,__Format(__yoTa("failed to write stream: %s",0),strerror(err)));
          }
        else
          i+=j;
      }
    
    strm->length += i;
    return i;
  }
#endif
  ;

void Xddbfs_Strm_Rewind(YOYO_XDDBFS_STREAM *strm)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    if ( !strm->finished )
      __Raise(YOYO_ERROR_ACCESS_DENAIED,__yoTa("writeonly stream!",0));
    if ( strm->fd < 0 )
      __Raise(YOYO_ERROR_IO,__yoTa("stream alrady closed",0));
    Lseek_Raise(strm->fd,0);
    strm->curpos = 0;
  }
#endif
  ;

void Xddbfs_Strm_Skip(YOYO_XDDBFS_STREAM *strm, int count)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    if ( !strm->finished )
      __Raise(YOYO_ERROR_ACCESS_DENAIED,__yoTa("writeonly stream!",0));
    if ( strm->fd < 0 )
      __Raise(YOYO_ERROR_IO,__yoTa("stream alrady closed",0));
    if ( count > strm->length - strm->curpos )
      __Raise(YOYO_ERROR_IO,__yoTa("skip out of stream",0));
    if ( count )
      Lseek_Raise(strm->fd,strm->curpos+count);
    strm->curpos += count;
  }
#endif
  ;

int Xddbfs_Strm_Available(YOYO_XDDBFS_STREAM *strm)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    if ( !strm->finished )
      __Raise(YOYO_ERROR_ACCESS_DENAIED,__yoTa("writeonly stream!",0));
    if ( strm->fd < 0 )
      __Raise(YOYO_ERROR_IO,__yoTa("stream alrady closed",0));
    return strm->length - strm->curpos;
  }
#endif
  ;

int Xddbfs_Strm_Mimetype(YOYO_XDDBFS_STREAM *strm)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    return strm->mimetype;
  }
#endif
  ;

int Xddbfs_Strm_Length(YOYO_XDDBFS_STREAM *strm)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    if ( !strm->finished )
      __Raise(YOYO_ERROR_ACCESS_DENAIED,__yoTa("writeonly stream!",0));
    return strm->length;
  }
#endif
  ;

void Xddbfs_Strm_Close(YOYO_XDDBFS_STREAM *strm)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    if ( strm->fd >= 0 ) 
      {
        close(strm->fd);
        strm->fd = -1;
      }
  }
#endif
  ;

int Xddbfs_Strm_Eof(YOYO_XDDBFS_STREAM *strm)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    return !Xddbfs_Strm_Available(strm);
  }
#endif
  ;

void Xddbfs_Strm_Cancel(YOYO_XDDBFS_STREAM *strm)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    Xddbfs_Strm_Close(strm);
  }
#endif
  ;

YOYO_XDDBFS_STREAM *Xddbfs_Strm_Init(YOYO_XDDBFS *xddb, char *key, int mimetype, int mknew)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    static YOYO_FUNCTABLE funcs[] = 
      { {0},
        {Oj_Destruct_OjMID,       YOYO_XDDBFS_STREAM_Destruct},
        {Oj_Close_OjMID,          Xddbfs_Strm_Close},
        {Oj_Read_OjMID,           Xddbfs_Strm_Read},
        {Oj_Write_OjMID,          Xddbfs_Strm_Write},
        {Oj_Available_OjMID,      Xddbfs_Strm_Available},
        {Oj_Eof_OjMID,            Xddbfs_Strm_Eof},
        {Oj_Length_OjMID,         Xddbfs_Strm_Length},
        {Xddb_Strm_Cancel_OjMID,  Xddbfs_Strm_Cancel},
        {Xddb_Strm_Commit_OjMID,  Xddbfs_Strm_Commit},
        {Oj_Mimetype_Of_OjMID,    Xddbfs_Strm_Mimetype},
        {0}
      };
    YOYO_XDDBFS_STREAM *self = __Object(sizeof(YOYO_XDDBFS_STREAM),funcs);
    self->fd = -1;
    self->xddb = __Refe(xddb);

    if ( mknew )
      {
        if ( key )
          __Raise(YOYO_ERROR_INVALID_PARAM,__yoTa("key can't be specified on stream creation",0));
        self->mimetype = mimetype;
        self->tmp_path = __Retain(Xddbfs_Tmp_File_Path_Sfx(xddb,".strm"));
        if ( mknew != - 1)
          {
            self->fd = Open_File(self->tmp_path,O_CREAT|O_WRONLY);
            if ( self->fd < 0 )
              {
                int err = errno;
                __Raise_Format(YOYO_ERROR_IO,
                      (__yoTa("failed to create temprary file '%s': %s",0),self->tmp_path,strerror(err)));
              }
          }
      }
    else
      {
        char *coid;
        coid = Xdata_Co_Fs_File_Path_Sfx(xddb,key,".strm");

        self->key = Str_Copy_Npl(key,-1);
        self->finished = 1;
        self->fd = Open_File(coid,O_RDONLY);
        if ( self->fd < 0 )
          {
            int err = errno;
            __Raise_Format(YOYO_ERROR_DOESNT_EXIST,
                  (__yoTa("failed to open stream object '%s'(%s): %s",0),key,coid,strerror(err)));
          }
        __Gogo
          {
            int keylen;
            YOYO_XDATA_CO_FS_STRM_HEADER hdr = {0};
            Lseek_Raise(self->fd,-sizeof(hdr));
            Read_Into_Raise(self->fd,&hdr,sizeof(hdr));
            Lseek_Raise(self->fd,0);
            self->mimetype = Four_To_Unsigned(hdr.mimetype);
            self->length = Hex8_To_Unsigned(hdr.length);
            keylen = Hex2_To_Unsigned(hdr.keylen);
            if ( keylen < sizeof(hdr.key) )
              hdr.key[keylen] = 0;
            hdr.nulterm = 0;
            if ( keylen != strlen(self->key) || 0 != strncmp(self->key,hdr.key,keylen) )
              __Raise_Format(YOYO_ERROR_CORRUPTED,
                  (__yoTa("failed to open stream '%s': specified key does not match to '%s'/%d",0),key,hdr.key,keylen));
          }
      }
    return self;
  }
#endif
  ;

YOYO_XDDBFS_STREAM *Xddbfs_Strm_Open(YOYO_XDDBFS *xddb, char *key)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    return Xddbfs_Strm_Init(xddb,key,0,0);
  }
#endif
  ;
    
YOYO_XDDBFS_STREAM *Xddbfs_Strm_Create(YOYO_XDDBFS *xddb, int mimetype)
#ifdef _YOYO_XDDBFS_BUILTIN 
  {
    return Xddbfs_Strm_Init(xddb,,mimetype,1);
  }
#ifdef _YOYO_XDDBFS_BUILTIN 
  ;
  
YOYO_XDATA_CO *Xddbfs_Open(char *path, int create_new, int format, int depth)
#ifdef _YOYO_XDATACO_BUILTIN 
  {
    static YOYO_FUNCTABLE funcs[] = 
      { {0},
        {Oj_Destruct_OjMID,       YOYO_XDDBFS_Destruct},
        {Xddb_Delete_OjMID,       Xddbfs_Delete},
        {Xddb_Get_OjMID,          Xddbfs_Get},
        {Xddb_Store_OjMID,        Xddbfs_Store},
        {Xddb_Strm_Open_OjMID,    Xddbfs_Strm_Open},
        {Xddb_Strm_Create_OjMID,  Xddbfs_Strm_Create},
        {Xddb_Strm_Delete_OjMID,  Xddbfs_Strm_Delete},
        {0}
      };

    YOYO_XDATA *xcf;
    YOYO_XDDBFS *xddb = 0;
    YOYO_FILE_STATS bp_stats = {0};
    YOYO_FILE_STATS jr_stats = {0};
    YOYO_FILE_STATS cf_stats = {0};
    char *cf_name,*jr_name,*tmp_dir;
    
    if ( !format ) format = YOYO_XDDB_DOC_TEXT;
    if ( depth & ( depth != 1 && depth != 2 && depth != 4 ) )
      __Raise_Format(YOYO_ERROR_INVALID_PARAM,(__yoTa("invalid depth value %d",0),depth));
    
    __Auto_Ptr(xddb)
      {
        cf_name = Str_Join_2('/',path,".coconf");
        jr_name = Str_Join_2('/',path,".cojur");
        tmp_dir = Str_Join_2('/',path,"tmp");
    
        File_Get_Stats(path,&bp_stats,1);
        File_Get_Stats(cf_name,&cf_stats,1);
        File_Get_Stats(jr_name,&jr_stats,1);
    
        if ( create_new )
          {
            int foo;
            if ( jr_stats.f.exists )
              __Raise_Format(YOYO_ERROR_ALREADY_EXISTS,
                              (__yoTa("collection '%s' already exists",0),path));
            if ( !cf_stats.f.exists ) __Auto_Release 
              {
                char *cf = __Format(__yoTa("depth = %d\nformat = %d\n",0),depth,format);
                int cf_len = strlen(cf);
                Cfile_Write(Cfile_Open(cf_name,"nP"),cf,cf_len,cf_len);
              }
            foo = open(jr_name,O_CREAT|O_WRONLY,0660);
            if ( foo >= 0 )
              close(foo);
            else
              Raise_If_File_Error(__yoTa("create",0),jr_name);
          }
        else
          {
            if ( !bp_stats.f.exists || !cf_stats.f.exists || !jr_stats.f.exists )
              __Raise_Format(YOYO_ERROR_DOESNT_EXIST,
                              (__yoTa("collection '%s' doesn't exist",0),path));
          }
        
        xcf = Def_Parse_File(cf_name);
        xddb = __Object(sizeof(YOYO_XDDBFS),funcs);
        xddb->basepath = Str_Copy_Npl(path,-1);
        xddb->fs_depth = Xnode_Value_Get_Int(xcf,"depth",0);
        xddb->xddb.doc_format = Xnode_Value_Get_Int(xcf,"format",0);
        
        xddb->jur_fd = open(jr_name,O_WRONLY|O_APPEND);
        if ( xddb->jur_fd < 0 ) 
          Raise_If_File_Error("open",jr_name); 
        
        if ( !File_Exists(tmp_dir) )
          Create_Directory(tmp_dir);
      }
      
    return xddb;
  }
#endif
  ;

#endif /* C_once_BAF0727D_FCA6_445A_8E5A_0EEAA9374EEF */