blocks/ndbfs/Filename.cpp

/*
   Copyright (c) 2003, 2021, Oracle and/or its affiliates.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.

   This program is also distributed with certain software (including
   but not limited to OpenSSL) that is licensed under separate terms,
   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
   permission to link the program and your derivative works with the
   separately licensed software that they have included with MySQL.

   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, version 2.0, for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/

#include <ndb_global.h>

#include "Filename.hpp"
#include "ErrorHandlingMacros.hpp"
#include "RefConvert.hpp"
#include "DebuggerNames.hpp"
#include "Ndbfs.hpp"

#include <signaldata/FsOpenReq.hpp>

#define JAM_FILE_ID 383


static const char* fileExtension[] = {
  ".Data",
  ".FragLog",
  ".LocLog",
  ".FragList",
  ".TableList",
  ".SchemaLog",
  ".sysfile",
  ".log",
  ".ctl"
};

static const Uint32 noOfExtensions = sizeof(fileExtension)/sizeof(char*);

Filename::Filename()
{
}

Filename::~Filename(){
}

void
Filename::set(Ndbfs* fs,
              BlockReference blockReference,
              const Uint32 filenumber[4], bool dir,
              SegmentedSectionPtr ptr)
{
  char buf[PATH_MAX];

  const Uint32 type = FsOpenReq::getSuffix(filenumber);
  const Uint32 version = FsOpenReq::getVersion(filenumber);

  size_t sz;
  if (version == 2)
  {
    sz = BaseString::snprintf(theName, sizeof(theName), "%s",
                              fs->get_base_path(FsOpenReq::BP_BACKUP).c_str());
    m_base_name = theName + fs->get_base_path(FsOpenReq::BP_BACKUP).length();
  }
  else
  {
    sz = BaseString::snprintf(theName, sizeof(theName), "%s",
                              fs->get_base_path(FsOpenReq::BP_FS).c_str());
    m_base_name = theName + fs->get_base_path(FsOpenReq::BP_FS).length();
  }

  switch(version){
  case 1 :{
    const Uint32 diskNo = FsOpenReq::v1_getDisk(filenumber);
    const Uint32 table  = FsOpenReq::v1_getTable(filenumber);
    const Uint32 frag   = FsOpenReq::v1_getFragment(filenumber);
    const Uint32 S_val  = FsOpenReq::v1_getS(filenumber);
    const Uint32 P_val  = FsOpenReq::v1_getP(filenumber);

    if (diskNo < 0xff){
      BaseString::snprintf(buf, sizeof(buf), "D%d%s", diskNo, DIR_SEPARATOR);
      strcat(theName, buf);
    }

    {
      const char* blockName = getBlockName( refToMain(blockReference) );
      if (blockName == NULL){
	ERROR_SET(ecError, NDBD_EXIT_AFS_PARAMETER,"","No Block Name");
	return;
      }
      BaseString::snprintf(buf, sizeof(buf), "%s%s", blockName, DIR_SEPARATOR);
      strcat(theName, buf);
    }

    if (table < 0xffffffff){
      BaseString::snprintf(buf, sizeof(buf), "T%d%s", table, DIR_SEPARATOR);
      strcat(theName, buf);
    }

    if (frag < 0xffffffff){
      BaseString::snprintf(buf, sizeof(buf), "F%d%s", frag, DIR_SEPARATOR);
      strcat(theName, buf);
    }


    if (S_val < 0xffffffff){
      BaseString::snprintf(buf, sizeof(buf), "S%d", S_val);
      strcat(theName, buf);
    }

    if (P_val < 0xff){
      BaseString::snprintf(buf, sizeof(buf), "P%d", P_val);
      strcat(theName, buf);
    }

  }
  break;
  case 2:{
    const Uint32 seq = FsOpenReq::v2_getSequence(filenumber);
    const Uint32 nodeId = FsOpenReq::v2_getNodeId(filenumber);
    const Uint32 count = FsOpenReq::v2_getCount(filenumber);

    BaseString::snprintf(buf, sizeof(buf), "BACKUP%sBACKUP-%u%s",
	     DIR_SEPARATOR, seq, DIR_SEPARATOR);
    strcat(theName, buf);
    if(count == 0xffffffff) {
      BaseString::snprintf(buf, sizeof(buf), "BACKUP-%u.%d",
	       seq, nodeId); strcat(theName, buf);
    } else {
      BaseString::snprintf(buf, sizeof(buf), "BACKUP-%u-%d.%d",
	       seq, count, nodeId); strcat(theName, buf);
    }
    break;
  }
  break;
  case 3:{
    const Uint32 diskNo = FsOpenReq::v1_getDisk(filenumber);

    if(diskNo == 0xFF){
      ERROR_SET(ecError, NDBD_EXIT_AFS_PARAMETER,"","Invalid disk specification");
    }

    BaseString::snprintf(buf, sizeof(buf), "D%d%s", diskNo, DIR_SEPARATOR);
    strcat(theName, buf);
  }
    break;
  case 4:
  {
    char buf[PATH_MAX];
    copy((Uint32*)&buf[0], ptr);
    if(buf[0] == DIR_SEPARATOR[0])
    {
      strncpy(theName, buf, PATH_MAX);
      m_base_name = theName;
    }
    else
    {
#ifdef NDB_WIN32
      char* b= buf;
      while((b= strchr(b, '/')) && b)
      {
        *b= '\\';
      }
#endif
      Uint32 bp = FsOpenReq::v4_getBasePath(filenumber);
      BaseString::snprintf(theName, sizeof(theName), "%s%s",
               fs->get_base_path(bp).c_str(), buf);
      m_base_name = theName + fs->get_base_path(bp).length();
    }
    return; // No extension
  }
  case 5:
  {
    Uint32 tableId = FsOpenReq::v5_getTableId(filenumber);
    Uint32 lcpNo = FsOpenReq::v5_getLcpNo(filenumber);
    Uint32 fragId = FsOpenReq::v5_getFragmentId(filenumber);
    BaseString::snprintf(buf, sizeof(buf), "LCP%s%d%sT%dF%d", DIR_SEPARATOR, lcpNo, DIR_SEPARATOR, tableId, fragId);
    strcat(theName, buf);
    break;
  }
  case 6:
  {
    Uint32 bp = FsOpenReq::v5_getLcpNo(filenumber);
    sz = BaseString::snprintf(theName, sizeof(theName), "%s",
                              fs->get_base_path(bp).c_str());
    break;
  }
  default:
    ERROR_SET(ecError, NDBD_EXIT_AFS_PARAMETER,"","Wrong version");
  }
  if (type >= noOfExtensions){
    ERROR_SET(ecError, NDBD_EXIT_AFS_PARAMETER,"","File Type doesn't exist");
    return;
  }
  strcat(theName, fileExtension[type]);

  if(dir == true){
    for(int l = (int)strlen(theName) - 1; l >= 0; l--){
      if(theName[l] == DIR_SEPARATOR[0]){
	theName[l] = 0;
	break;
      }
    }
  }
}