12a621dc04
git-svn-id: https://svn.code.sf.net/p/flaim/code/trunk@1010 0109f412-320b-0410-ab79-c3e0c5ffbbe6
327 lines
7.2 KiB
C++
327 lines
7.2 KiB
C++
//------------------------------------------------------------------------------
|
|
// Desc: This file contains the F_DbSystem::dbRemove method.
|
|
// Tabs: 3
|
|
//
|
|
// Copyright (c) 2001-2007 Novell, Inc. All Rights Reserved.
|
|
//
|
|
// This library is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Lesser General Public
|
|
// License as published by the Free Software Foundation; version 2.1
|
|
// of the License.
|
|
//
|
|
// This library 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
|
|
// Library Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public
|
|
// License along with this library; if not, contact Novell, Inc.
|
|
//
|
|
// To contact Novell about this file by physical or electronic mail,
|
|
// you may find current contact information at www.novell.com.
|
|
//
|
|
// $Id$
|
|
//------------------------------------------------------------------------------
|
|
|
|
#include "flaimsys.h"
|
|
|
|
/****************************************************************************
|
|
Desc: Deletes all files of a database
|
|
****************************************************************************/
|
|
RCODE F_DbSystem::dbRemove(
|
|
const char * pszDbName,
|
|
// [IN] Name of source database to be deleted.
|
|
const char * pszDataDir,
|
|
// [IN] Directory where data files are located.
|
|
const char * pszRflDir,
|
|
// [IN] RFL directory of database. NULL can be
|
|
// passed to indicate that the log files are located
|
|
// in the same directory as the other database files.
|
|
FLMBOOL bRemoveRflFiles)
|
|
{
|
|
RCODE rc = NE_XFLM_OK;
|
|
FLMUINT uiFileNumber;
|
|
char * pszTmpName = NULL;
|
|
char * pszRflDirName;
|
|
char * pszDataName;
|
|
char * pszBaseName;
|
|
char * pszExt;
|
|
char * pszDataExt;
|
|
IF_DirHdl * pDirHdl = NULL;
|
|
|
|
// Cannot handle empty database name.
|
|
|
|
if( !pszDbName || !(*pszDbName))
|
|
{
|
|
rc = RC_SET( NE_FLM_IO_INVALID_FILENAME);
|
|
goto Exit;
|
|
}
|
|
|
|
// Allocate memory, so as to not consume stack.
|
|
|
|
if( RC_BAD( rc = f_alloc( F_PATH_MAX_SIZE * 3 + F_FILENAME_SIZE,
|
|
&pszTmpName)))
|
|
{
|
|
goto Exit;
|
|
}
|
|
|
|
pszRflDirName = pszTmpName + F_PATH_MAX_SIZE;
|
|
pszDataName = pszRflDirName + F_PATH_MAX_SIZE;
|
|
pszBaseName = pszDataName + F_PATH_MAX_SIZE;
|
|
|
|
// First make sure we have closed this database and gotten rid of
|
|
// it from our internal memory tables - in case it had been open.
|
|
|
|
if (RC_BAD( rc = checkDatabaseClosed( pszDbName, pszDataDir)))
|
|
{
|
|
goto Exit;
|
|
}
|
|
|
|
// Close all unused file handles
|
|
|
|
if( gv_XFlmSysData.pFileHdlCache)
|
|
{
|
|
gv_XFlmSysData.pFileHdlCache->closeUnusedFiles();
|
|
}
|
|
|
|
if (pszDataDir && *pszDataDir)
|
|
{
|
|
if (RC_BAD( rc = gv_XFlmSysData.pFileSystem->pathReduce(
|
|
pszDbName, pszDataName, pszBaseName)))
|
|
{
|
|
goto Exit;
|
|
}
|
|
f_strcpy( pszDataName, pszDataDir);
|
|
if (RC_BAD( rc = gv_XFlmSysData.pFileSystem->pathAppend(
|
|
pszDataName, pszBaseName)))
|
|
{
|
|
goto Exit;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
f_strcpy( pszDataName, pszDbName);
|
|
}
|
|
f_strcpy( pszTmpName, pszDbName);
|
|
|
|
// Start deleting files, beginning with the main DB file.
|
|
|
|
if (RC_BAD( rc = gv_XFlmSysData.pFileSystem->deleteFile( pszDbName)))
|
|
{
|
|
if (rc == NE_FLM_IO_PATH_NOT_FOUND || rc == NE_FLM_IO_INVALID_FILENAME)
|
|
{
|
|
rc = NE_XFLM_OK;
|
|
}
|
|
else
|
|
{
|
|
goto Exit;
|
|
}
|
|
}
|
|
|
|
// Find where the extension of the database name is
|
|
|
|
pszExt = pszTmpName + f_strlen( pszTmpName) - 1;
|
|
pszDataExt = pszDataName + f_strlen( pszDataName) - 1;
|
|
while (pszExt != pszTmpName && *pszExt != '.')
|
|
{
|
|
pszExt--;
|
|
|
|
// Both the db name and data name have the same
|
|
// base name, so we can decrement pszDataExt
|
|
// at the same time we decrement pszExt.
|
|
|
|
pszDataExt--;
|
|
}
|
|
if (*pszExt != '.')
|
|
{
|
|
pszExt = pszTmpName + f_strlen( pszTmpName);
|
|
pszDataExt = pszDataName + f_strlen( pszDataName);
|
|
}
|
|
|
|
// Delete the .lck file, if any
|
|
|
|
f_strcpy( pszExt, ".lck");
|
|
if (RC_BAD( rc = gv_XFlmSysData.pFileSystem->deleteFile( pszTmpName)))
|
|
{
|
|
if (rc == NE_FLM_IO_PATH_NOT_FOUND || rc == NE_FLM_IO_INVALID_FILENAME)
|
|
{
|
|
rc = NE_XFLM_OK;
|
|
}
|
|
else
|
|
{
|
|
goto Exit;
|
|
}
|
|
}
|
|
|
|
// Delete block (data) files.
|
|
|
|
uiFileNumber = 1;
|
|
for (;;)
|
|
{
|
|
F_SuperFileClient::bldSuperFileExtension( uiFileNumber, pszDataExt);
|
|
|
|
if (RC_BAD( rc = gv_XFlmSysData.pFileSystem->deleteFile( pszDataName)))
|
|
{
|
|
if (rc == NE_FLM_IO_PATH_NOT_FOUND || rc == NE_FLM_IO_INVALID_FILENAME)
|
|
{
|
|
rc = NE_XFLM_OK;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
goto Exit;
|
|
}
|
|
}
|
|
if (uiFileNumber == MAX_DATA_BLOCK_FILE_NUMBER)
|
|
{
|
|
break;
|
|
}
|
|
uiFileNumber++;
|
|
}
|
|
|
|
// Delete rollback log files.
|
|
|
|
uiFileNumber = FIRST_LOG_BLOCK_FILE_NUMBER;
|
|
for (;;)
|
|
{
|
|
F_SuperFileClient::bldSuperFileExtension( uiFileNumber, pszExt);
|
|
|
|
if (RC_BAD( rc = gv_XFlmSysData.pFileSystem->deleteFile( pszTmpName)))
|
|
{
|
|
if (rc == NE_FLM_IO_PATH_NOT_FOUND || rc == NE_FLM_IO_INVALID_FILENAME)
|
|
{
|
|
rc = NE_XFLM_OK;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
goto Exit;
|
|
}
|
|
}
|
|
if (uiFileNumber == MAX_LOG_BLOCK_FILE_NUMBER)
|
|
{
|
|
break;
|
|
}
|
|
uiFileNumber++;
|
|
}
|
|
|
|
if (bRemoveRflFiles)
|
|
{
|
|
|
|
// Delete roll-forward log files.
|
|
|
|
FLMBOOL bCanDeleteDir;
|
|
|
|
// Scan the RFL directory for RFL files.
|
|
|
|
if (RC_BAD( rc = rflGetDirAndPrefix( pszDbName, pszRflDir, pszRflDirName)))
|
|
{
|
|
goto Exit;
|
|
}
|
|
|
|
// See if the directory exists. If not, we are done.
|
|
|
|
if (!gv_XFlmSysData.pFileSystem->isDir( pszRflDirName))
|
|
{
|
|
goto Exit; // Should return NE_XFLM_OK
|
|
}
|
|
|
|
// Open the directory and scan for RFL files.
|
|
// NOTE: DO NOT just call removeDir. There may be other
|
|
// things in the directory that we do not want to delete.
|
|
// Look specifically for files that match our expected
|
|
// name format for RFL files.
|
|
|
|
if (RC_BAD( rc = gv_XFlmSysData.pFileSystem->openDir( pszRflDirName,
|
|
"*", &pDirHdl)))
|
|
{
|
|
goto Exit;
|
|
}
|
|
|
|
// Assume that we can delete the directory. This will only
|
|
// be set to FALSE if we can't delete all of the files in
|
|
// the directory - i.e., some don't look like RFL log files.
|
|
|
|
bCanDeleteDir = TRUE;
|
|
for (;;)
|
|
{
|
|
if (RC_BAD( rc = pDirHdl->next()))
|
|
{
|
|
if (rc == NE_FLM_IO_NO_MORE_FILES)
|
|
{
|
|
rc = NE_XFLM_OK;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
goto Exit;
|
|
}
|
|
}
|
|
pDirHdl->currentItemPath( pszTmpName);
|
|
if (pDirHdl->currentItemIsDir())
|
|
{
|
|
bCanDeleteDir = FALSE;
|
|
}
|
|
else if (!rflGetFileNum( pszTmpName, &uiFileNumber))
|
|
{
|
|
bCanDeleteDir = FALSE;
|
|
}
|
|
else
|
|
{
|
|
if( RC_BAD( rc =
|
|
gv_XFlmSysData.pFileSystem->deleteFile( pszTmpName)))
|
|
{
|
|
if (rc == NE_FLM_IO_PATH_NOT_FOUND ||
|
|
rc == NE_FLM_IO_INVALID_FILENAME)
|
|
{
|
|
rc = NE_XFLM_OK;
|
|
}
|
|
else
|
|
{
|
|
goto Exit;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Attempt to delete the directory - if allowed.
|
|
|
|
if (bCanDeleteDir)
|
|
{
|
|
|
|
// Need to release the directory handle so the
|
|
// directory will be closed when we try to delete it
|
|
// below.
|
|
|
|
if (pDirHdl)
|
|
{
|
|
pDirHdl->Release();
|
|
pDirHdl = NULL;
|
|
}
|
|
|
|
if (RC_BAD( rc = gv_XFlmSysData.pFileSystem->removeDir( pszRflDirName)))
|
|
{
|
|
if (rc == NE_FLM_IO_PATH_NOT_FOUND || rc == NE_FLM_IO_INVALID_FILENAME)
|
|
{
|
|
rc = NE_XFLM_OK;
|
|
}
|
|
goto Exit;
|
|
}
|
|
}
|
|
}
|
|
|
|
Exit:
|
|
|
|
if( pszTmpName)
|
|
{
|
|
f_free( &pszTmpName);
|
|
}
|
|
|
|
if( pDirHdl)
|
|
{
|
|
pDirHdl->Release();
|
|
}
|
|
|
|
return( rc);
|
|
}
|