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/*****************************************************************************
Copyright (c) 2015, 2018, MariaDB Corporation.
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; version 2 of the License.
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.
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 Street, Suite 500, Boston, MA 02110-1335 USA
*****************************************************************************/
/**************************************************//**
@file include/fil0fil.ic
The low-level file system support functions
Created 31/03/2015 Jan Lindström
*******************************************************/
#ifndef fil0fil_ic
#define fil0fil_ic
/*******************************************************************//**
Return page type name */
UNIV_INLINE
const char*
fil_get_page_type_name(
/*===================*/
ulint page_type) /*!< in: FIL_PAGE_TYPE */
{
switch(page_type) {
case FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED:
return "PAGE_COMPRESSED_ENRYPTED";
case FIL_PAGE_PAGE_COMPRESSED:
return "PAGE_COMPRESSED";
case FIL_PAGE_INDEX:
return "INDEX";
case FIL_PAGE_RTREE:
return "RTREE";
case FIL_PAGE_UNDO_LOG:
return "UNDO LOG";
case FIL_PAGE_INODE:
return "INODE";
case FIL_PAGE_IBUF_FREE_LIST:
return "IBUF_FREE_LIST";
case FIL_PAGE_TYPE_ALLOCATED:
return "ALLOCATED";
case FIL_PAGE_IBUF_BITMAP:
return "IBUF_BITMAP";
case FIL_PAGE_TYPE_SYS:
return "SYS";
case FIL_PAGE_TYPE_TRX_SYS:
return "TRX_SYS";
case FIL_PAGE_TYPE_FSP_HDR:
return "FSP_HDR";
case FIL_PAGE_TYPE_XDES:
return "XDES";
case FIL_PAGE_TYPE_BLOB:
return "BLOB";
case FIL_PAGE_TYPE_ZBLOB:
return "ZBLOB";
case FIL_PAGE_TYPE_ZBLOB2:
return "ZBLOB2";
case FIL_PAGE_TYPE_UNKNOWN:
return "OLD UNKOWN PAGE TYPE";
default:
return "PAGE TYPE CORRUPTED";
}
}
/****************************************************************//**
Validate page type.
@return true if valid, false if not */
UNIV_INLINE
bool
fil_page_type_validate(
const byte* page) /*!< in: page */
{
#ifdef UNIV_DEBUG
ulint page_type = mach_read_from_2(page + FIL_PAGE_TYPE);
/* Validate page type */
if (!((page_type == FIL_PAGE_PAGE_COMPRESSED ||
page_type == FIL_PAGE_PAGE_COMPRESSED_ENCRYPTED ||
page_type == FIL_PAGE_INDEX ||
page_type == FIL_PAGE_RTREE ||
page_type == FIL_PAGE_UNDO_LOG ||
page_type == FIL_PAGE_INODE ||
page_type == FIL_PAGE_IBUF_FREE_LIST ||
page_type == FIL_PAGE_TYPE_ALLOCATED ||
page_type == FIL_PAGE_IBUF_BITMAP ||
page_type == FIL_PAGE_TYPE_SYS ||
page_type == FIL_PAGE_TYPE_TRX_SYS ||
page_type == FIL_PAGE_TYPE_FSP_HDR ||
page_type == FIL_PAGE_TYPE_XDES ||
page_type == FIL_PAGE_TYPE_BLOB ||
page_type == FIL_PAGE_TYPE_ZBLOB ||
page_type == FIL_PAGE_TYPE_ZBLOB2 ||
page_type == FIL_PAGE_TYPE_UNKNOWN))) {
ulint space = mach_read_from_4(page + FIL_PAGE_ARCH_LOG_NO_OR_SPACE_ID);
ulint offset = mach_read_from_4(page + FIL_PAGE_OFFSET);
fil_system_enter();
fil_space_t* rspace = fil_space_get_by_id(space);
fil_system_exit();
/* Dump out the page info */
ib::fatal() << "Page " << space << ":" << offset
<< " name " << (rspace ? rspace->name : "???")
<< " page_type " << page_type
<< " key_version "
<< mach_read_from_4(page + FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION)
<< " lsn " << mach_read_from_8(page + FIL_PAGE_LSN)
<< " compressed_len " << mach_read_from_2(page + FIL_PAGE_DATA);
return false;
}
#endif /* UNIV_DEBUG */
return true;
}
#endif /* fil0fil_ic */
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