2013-02-07 13:34:27 +04:00
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/*************** Colblk H Declares Source Code File (.H) ***************/
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2014-02-03 16:14:13 +01:00
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/* Name: COLBLK.H Version 1.7 */
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2013-02-07 13:34:27 +04:00
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/* */
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2021-10-15 12:20:33 +02:00
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/* (C) Copyright to the author Olivier BERTRAND 2005-2019 */
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2013-02-07 13:34:27 +04:00
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/* */
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/* This file contains the COLBLK and derived classes declares. */
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/***********************************************************************/
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#ifndef __COLBLK__H
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#define __COLBLK__H
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/***********************************************************************/
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/* Include required application header files */
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/***********************************************************************/
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#include "xobject.h"
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#include "reldef.h"
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/***********************************************************************/
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/* Class COLBLK: Base class for table column descriptors. */
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/***********************************************************************/
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class DllExport COLBLK : public XOBJECT {
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friend class TDBPIVOT;
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protected:
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// Default constructors used by derived classes
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COLBLK(PCOLDEF cdp = NULL, PTDB tdbp = NULL, int i = 0);
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COLBLK(PCOL colp, PTDB tdbp = NULL); // Used in copy process
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2015-05-09 17:30:20 +02:00
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COLBLK(int) {} // Used when changing a column class in TDBXML
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2013-02-07 13:34:27 +04:00
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public:
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// Implementation
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virtual int GetType(void) {return TYPE_COLBLK;}
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virtual int GetResultType(void) {return Buf_Type;}
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2013-12-28 15:46:49 +01:00
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virtual int GetScale(void) {return Format.Prec;}
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virtual int GetPrecision(void) {return Precision;}
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2013-02-07 13:34:27 +04:00
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virtual int GetLength(void) {return Long;}
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virtual int GetLengthEx(void);
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virtual int GetAmType() {return TYPE_AM_ERROR;}
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virtual void SetOk(void) {Status |= BUF_EMPTY;}
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virtual PTDB GetTo_Tdb(void) {return To_Tdb;}
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2014-05-31 13:18:32 +02:00
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virtual int GetClustered(void) {return 0;}
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virtual int IsClustered(void) {return FALSE;}
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2021-05-01 22:29:38 +02:00
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virtual bool Stringify(void) {return FALSE;}
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virtual PSZ GetJpath(PGLOBAL g, bool proj) {return NULL;}
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2017-07-02 22:29:31 +02:00
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PCOL GetNext(void) {return Next;}
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2013-02-07 13:34:27 +04:00
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PSZ GetName(void) {return Name;}
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int GetIndex(void) {return Index;}
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ushort GetColUse(void) {return ColUse;}
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2014-05-31 13:18:32 +02:00
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int GetOpt(void) {return Opt;}
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2013-02-07 13:34:27 +04:00
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ushort GetColUse(ushort u) {return (ColUse & u);}
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ushort GetStatus(void) {return Status;}
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ushort GetStatus(ushort u) {return (Status & u);}
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void SetColUse(ushort u) {ColUse = u;}
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void SetStatus(ushort u) {Status = u;}
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void AddColUse(ushort u) {ColUse |= u;}
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void AddStatus(ushort u) {Status |= u;}
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void SetNext(PCOL cp) {Next = cp;}
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2014-05-31 13:18:32 +02:00
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PXCOL GetKcol(void) {return To_Kcol;}
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2013-02-07 13:34:27 +04:00
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void SetKcol(PXCOL kcp) {To_Kcol = kcp;}
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PCOLDEF GetCdp(void) {return Cdp;}
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PSZ GetDomain(void) {return (Cdp) ? Cdp->Decode : NULL;}
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PSZ GetDesc(void) {return (Cdp) ? Cdp->Desc : NULL;}
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PSZ GetFmt(void) {return (Cdp) ? Cdp->Fmt : NULL;}
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2013-12-28 15:46:49 +01:00
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bool IsUnsigned(void) {return Unsigned;}
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2014-05-30 14:53:15 +02:00
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bool IsVirtual(void) {return Cdp->IsVirtual();}
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2014-05-31 13:18:32 +02:00
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bool IsNullable(void) {return Nullable;}
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2013-02-24 01:23:18 +01:00
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void SetNullable(bool b) {Nullable = b;}
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Fix all warnings given by UBSAN
The easiest way to compile and test the server with UBSAN is to run:
./BUILD/compile-pentium64-ubsan
and then run mysql-test-run.
After this commit, one should be able to run this without any UBSAN
warnings. There is still a few compiler warnings that should be fixed
at some point, but these do not expose any real bugs.
The 'special' cases where we disable, suppress or circumvent UBSAN are:
- ref10 source (as here we intentionally do some shifts that UBSAN
complains about.
- x86 version of optimized int#korr() methods. UBSAN do not like unaligned
memory access of integers. Fixed by using byte_order_generic.h when
compiling with UBSAN
- We use smaller thread stack with ASAN and UBSAN, which forced me to
disable a few tests that prints the thread stack size.
- Verifying class types does not work for shared libraries. I added
suppression in mysql-test-run.pl for this case.
- Added '#ifdef WITH_UBSAN' when using integer arithmetic where it is
safe to have overflows (two cases, in item_func.cc).
Things fixed:
- Don't left shift signed values
(byte_order_generic.h, mysqltest.c, item_sum.cc and many more)
- Don't assign not non existing values to enum variables.
- Ensure that bool and enum values are properly initialized in
constructors. This was needed as UBSAN checks that these types has
correct values when one copies an object.
(gcalc_tools.h, ha_partition.cc, item_sum.cc, partition_element.h ...)
- Ensure we do not called handler functions on unallocated objects or
deleted objects.
(events.cc, sql_acl.cc).
- Fixed bugs in Item_sp::Item_sp() where we did not call constructor
on Query_arena object.
- Fixed several cast of objects to an incompatible class!
(Item.cc, Item_buff.cc, item_timefunc.cc, opt_subselect.cc, sql_acl.cc,
sql_select.cc ...)
- Ensure we do not do integer arithmetic that causes over or underflows.
This includes also ++ and -- of integers.
(Item_func.cc, Item_strfunc.cc, item_timefunc.cc, sql_base.cc ...)
- Added JSON_VALUE_UNITIALIZED to json_value_types and ensure that
value_type is initialized to this instead of to -1, which is not a valid
enum value for json_value_types.
- Ensure we do not call memcpy() when second argument could be null.
- Fixed that Item_func_str::make_empty_result() creates an empty string
instead of a null string (safer as it ensures we do not do arithmetic
on null strings).
Other things:
- Changed struct st_position to an OBJECT and added an initialization
function to it to ensure that we do not copy or use uninitialized
members. The change to a class was also motived that we used "struct
st_position" and POSITION randomly trough the code which was
confusing.
- Notably big rewrite in sql_acl.cc to avoid using deleted objects.
- Changed in sql_partition to use '^' instead of '-'. This is safe as
the operator is either 0 or 0x8000000000000000ULL.
- Added check for select_nr < INT_MAX in JOIN::build_explain() to
avoid bug when get_select() could return NULL.
- Reordered elements in POSITION for better alignment.
- Changed sql_test.cc::print_plan() to use pointers instead of objects.
- Fixed bug in find_set() where could could execute '1 << -1'.
- Added variable have_sanitizer, used by mtr. (This variable was before
only in 10.5 and up). It can now have one of two values:
ASAN or UBSAN.
- Moved ~Archive_share() from ha_archive.cc to ha_archive.h and marked
it virtual. This was an effort to get UBSAN to work with loaded storage
engines. I kept the change as the new place is better.
- Added in CONNECT engine COLBLK::SetName(), to get around a wrong cast
in tabutil.cpp.
- Added HAVE_REPLICATION around usage of rgi_slave, to get embedded
server to compile with UBSAN. (Patch from Marko).
- Added #ifdef for powerpc64 to avoid a bug in old gcc versions related
to integer arithmetic.
Changes that should not be needed but had to be done to suppress warnings
from UBSAN:
- Added static_cast<<uint16_t>> around shift to get rid of a LOT of
compiler warnings when using UBSAN.
- Had to change some '/' of 2 base integers to shift to get rid of
some compile time warnings.
Reviewed by:
- Json changes: Alexey Botchkov
- Charset changes in ctype-uca.c: Alexander Barkov
- InnoDB changes & Embedded server: Marko Mäkelä
- sql_acl.cc changes: Vicențiu Ciorbaru
- build_explain() changes: Sergey Petrunia
2021-04-18 15:29:13 +03:00
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void SetName(PSZ name_var) { Name= name_var; }
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2014-05-31 13:18:32 +02:00
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// Methods
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2013-02-07 13:34:27 +04:00
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virtual void Reset(void);
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virtual bool Compare(PXOB xp);
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virtual bool SetFormat(PGLOBAL, FORMAT&);
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virtual bool IsSpecial(void) {return false;}
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virtual bool Eval(PGLOBAL g);
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virtual bool SetBuffer(PGLOBAL g, PVAL value, bool ok, bool check);
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2015-05-09 17:30:20 +02:00
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virtual void SetTo_Val(PVAL) {}
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2013-02-07 13:34:27 +04:00
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virtual void ReadColumn(PGLOBAL g);
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virtual void WriteColumn(PGLOBAL g);
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2017-05-23 19:35:50 +02:00
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virtual void Printf(PGLOBAL g, FILE *, uint);
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virtual void Prints(PGLOBAL g, char *, uint);
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2014-05-31 13:18:32 +02:00
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virtual bool VarSize(void) {return false;}
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2013-02-07 13:34:27 +04:00
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bool InitValue(PGLOBAL g);
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protected:
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// Members
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PCOL Next; // Next column in table
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PSZ Name; // Column name
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PCOLDEF Cdp; // To column definition block
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PTDB To_Tdb; // Points to Table Descriptor Block
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PXCOL To_Kcol; // Points to Xindex matching column
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2013-02-24 01:23:18 +01:00
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bool Nullable; // True if nullable
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2013-12-03 22:59:40 +01:00
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bool Unsigned; // True if unsigned
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2013-02-07 13:34:27 +04:00
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int Index; // Column number in table
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2014-05-31 13:18:32 +02:00
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int Opt; // Cluster/sort information
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2013-02-07 13:34:27 +04:00
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int Buf_Type; // Data type
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int Long; // Internal length in table
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2013-12-28 15:46:49 +01:00
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int Precision; // Column length (as for ODBC)
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2014-05-31 13:18:32 +02:00
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int Freq; // Evaluated ceiling of distinct values
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2013-02-07 13:34:27 +04:00
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FORMAT Format; // Output format
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ushort ColUse; // Column usage
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ushort Status; // Column read status
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}; // end of class COLBLK
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/***********************************************************************/
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/* Class SPCBLK: Base class for special column descriptors. */
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/***********************************************************************/
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2014-02-03 16:14:13 +01:00
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class DllExport SPCBLK : public COLBLK {
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2013-02-07 13:34:27 +04:00
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public:
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// Constructor
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SPCBLK(PCOLUMN cp);
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// Implementation
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virtual int GetAmType(void) = 0;
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2014-07-17 18:13:51 +02:00
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virtual bool GetRnm(void) {return false;}
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2013-02-07 13:34:27 +04:00
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// Methods
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virtual bool IsSpecial(void) {return true;}
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virtual void ReadColumn(PGLOBAL g) = 0;
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virtual void WriteColumn(PGLOBAL g);
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protected:
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// Default constructor not to be used
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SPCBLK(void) : COLBLK(1) {}
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}; // end of class SPCBLK
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/***********************************************************************/
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/* Class RIDBLK: ROWID special column descriptor. */
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/***********************************************************************/
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2014-02-03 16:14:13 +01:00
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class DllExport RIDBLK : public SPCBLK {
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2013-02-07 13:34:27 +04:00
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public:
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// Constructor
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RIDBLK(PCOLUMN cp, bool rnm);
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// Implementation
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virtual int GetAmType(void) {return TYPE_AM_ROWID;}
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2014-07-17 18:13:51 +02:00
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virtual bool GetRnm(void) {return Rnm;}
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2013-02-07 13:34:27 +04:00
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// Methods
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virtual void ReadColumn(PGLOBAL g);
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protected:
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bool Rnm; // False for RowID, True for RowNum
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}; // end of class RIDBLK
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/***********************************************************************/
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/* Class FIDBLK: FILEID special column descriptor. */
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/***********************************************************************/
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2014-02-03 16:14:13 +01:00
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class DllExport FIDBLK : public SPCBLK {
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2013-02-07 13:34:27 +04:00
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public:
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// Constructor
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2014-07-17 18:13:51 +02:00
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FIDBLK(PCOLUMN cp, OPVAL op);
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2013-02-07 13:34:27 +04:00
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// Implementation
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virtual int GetAmType(void) {return TYPE_AM_FILID;}
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// Methods
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virtual void Reset(void) {} // This is a pseudo constant column
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virtual void ReadColumn(PGLOBAL g);
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protected:
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2017-05-23 19:35:50 +02:00
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PCSZ Fn; // The current To_File of the table
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2014-07-17 18:13:51 +02:00
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OPVAL Op; // The file part operator
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2013-02-07 13:34:27 +04:00
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}; // end of class FIDBLK
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/***********************************************************************/
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/* Class TIDBLK: TABID special column descriptor. */
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/***********************************************************************/
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2014-02-03 16:14:13 +01:00
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class DllExport TIDBLK : public SPCBLK {
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2013-02-07 13:34:27 +04:00
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public:
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// Constructor
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TIDBLK(PCOLUMN cp);
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// Implementation
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virtual int GetAmType(void) {return TYPE_AM_TABID;}
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// Methods
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virtual void Reset(void) {} // This is a pseudo constant column
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virtual void ReadColumn(PGLOBAL g);
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protected:
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// Default constructor not to be used
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TIDBLK(void) {}
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// Members
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2017-05-23 19:35:50 +02:00
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PCSZ Tname; // The current table name
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2013-02-07 13:34:27 +04:00
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}; // end of class TIDBLK
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2014-07-17 18:13:51 +02:00
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/***********************************************************************/
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/* Class PRTBLK: PARTID special column descriptor. */
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/***********************************************************************/
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class DllExport PRTBLK : public SPCBLK {
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public:
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// Constructor
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PRTBLK(PCOLUMN cp);
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// Implementation
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virtual int GetAmType(void) {return TYPE_AM_PRTID;}
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// Methods
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virtual void Reset(void) {} // This is a pseudo constant column
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virtual void ReadColumn(PGLOBAL g);
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protected:
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// Default constructor not to be used
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PRTBLK(void) {}
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// Members
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2017-05-23 19:35:50 +02:00
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PCSZ Pname; // The current partition name
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2014-07-17 18:13:51 +02:00
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}; // end of class PRTBLK
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2013-08-09 18:02:47 +02:00
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/***********************************************************************/
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/* Class SIDBLK: SERVID special column descriptor. */
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/***********************************************************************/
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2014-02-03 16:14:13 +01:00
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class DllExport SIDBLK : public SPCBLK {
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2013-08-09 18:02:47 +02:00
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public:
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// Constructor
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SIDBLK(PCOLUMN cp);
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// Implementation
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virtual int GetAmType(void) {return TYPE_AM_SRVID;}
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// Methods
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virtual void Reset(void) {} // This is a pseudo constant column
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virtual void ReadColumn(PGLOBAL g);
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protected:
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// Default constructor not to be used
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SIDBLK(void) {}
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// Members
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2017-05-23 19:35:50 +02:00
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PCSZ Sname; // The current server name
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2013-08-09 18:02:47 +02:00
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}; // end of class SIDBLK
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2013-02-07 13:34:27 +04:00
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#endif // __COLBLK__H
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