mirror of
https://github.com/MariaDB/server.git
synced 2025-01-21 14:32:34 +01:00
ffa8c4cfcc
support ha_innodb.so as a dynamic plugin. * remove obsolete *,innodb_plugin.rdiff files * s/--plugin-load=/--plugin-load-add=/ * MYSQL_PLUGIN_IMPORT glob_hostname[] * use my_error instead of push_warning_printf(ER_DEFAULT) * don't use tdc_size and tc_size in a module update test cases (XtraDB is 5.6.14, InnoDB is 5.6.10) * copy new tests over * disable some tests for (old) InnoDB * delete XtraDB tests that no longer apply small compatibility changes: * s/HTON_EXTENDED_KEYS/HTON_SUPPORTS_EXTENDED_KEYS/ * revert unnecessary InnoDB changes to make it a bit closer to the upstream fix XtraDB to compile on Windows (both as a static and a dynamic plugin) disable XtraDB on Windows (deadlocks) and where no atomic ops are available (e.g. CentOS 5) storage/innobase/handler/ha_innodb.cc: revert few unnecessary changes to make it a bit closer to the original InnoDB storage/innobase/include/univ.i: correct the version to match what it was merged from
94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
/*****************************************************************************
|
|
|
|
Copyright (c) 1995, 2009, Oracle and/or its affiliates. All Rights Reserved.
|
|
|
|
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 mach/mach0data.cc
|
|
Utilities for converting data from the database file
|
|
to the machine format.
|
|
|
|
Created 11/28/1995 Heikki Tuuri
|
|
***********************************************************************/
|
|
|
|
#include "mach0data.h"
|
|
|
|
#ifdef UNIV_NONINL
|
|
#include "mach0data.ic"
|
|
#endif
|
|
|
|
/*********************************************************//**
|
|
Reads a ulint in a compressed form if the log record fully contains it.
|
|
@return pointer to end of the stored field, NULL if not complete */
|
|
UNIV_INTERN
|
|
byte*
|
|
mach_parse_compressed(
|
|
/*==================*/
|
|
byte* ptr, /*!< in: pointer to buffer from where to read */
|
|
byte* end_ptr,/*!< in: pointer to end of the buffer */
|
|
ulint* val) /*!< out: read value (< 2^32) */
|
|
{
|
|
ulint flag;
|
|
|
|
ut_ad(ptr && end_ptr && val);
|
|
|
|
if (ptr >= end_ptr) {
|
|
|
|
return(NULL);
|
|
}
|
|
|
|
flag = mach_read_from_1(ptr);
|
|
|
|
if (flag < 0x80UL) {
|
|
*val = flag;
|
|
return(ptr + 1);
|
|
|
|
} else if (flag < 0xC0UL) {
|
|
if (end_ptr < ptr + 2) {
|
|
return(NULL);
|
|
}
|
|
|
|
*val = mach_read_from_2(ptr) & 0x7FFFUL;
|
|
|
|
return(ptr + 2);
|
|
|
|
} else if (flag < 0xE0UL) {
|
|
if (end_ptr < ptr + 3) {
|
|
return(NULL);
|
|
}
|
|
|
|
*val = mach_read_from_3(ptr) & 0x3FFFFFUL;
|
|
|
|
return(ptr + 3);
|
|
} else if (flag < 0xF0UL) {
|
|
if (end_ptr < ptr + 4) {
|
|
return(NULL);
|
|
}
|
|
|
|
*val = mach_read_from_4(ptr) & 0x1FFFFFFFUL;
|
|
|
|
return(ptr + 4);
|
|
} else {
|
|
ut_ad(flag == 0xF0UL);
|
|
|
|
if (end_ptr < ptr + 5) {
|
|
return(NULL);
|
|
}
|
|
|
|
*val = mach_read_from_4(ptr + 1);
|
|
return(ptr + 5);
|
|
}
|
|
}
|