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mariadb/storage/sphinx/ha_sphinx.cc
Yuchen Pei d06b6de305
Merge branch '10.5' into 10.6
2024-01-11 12:59:22 +11:00

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//
// $Id: ha_sphinx.cc 4842 2014-11-12 21:03:06Z deogar $
//
//
// Copyright (c) 2001-2014, Andrew Aksyonoff
// Copyright (c) 2008-2014, Sphinx Technologies Inc
// 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. You should have
// received a copy of the GPL license along with this program; if you
// did not, you can find it at http://www.gnu.org/
//
#ifdef USE_PRAGMA_IMPLEMENTATION
#pragma implementation // gcc: Class implementation
#endif
#if defined(_MSC_VER) && _MSC_VER>=1400
#define _CRT_SECURE_NO_DEPRECATE 1
#define _CRT_NONSTDC_NO_DEPRECATE 1
#endif
#include <my_global.h>
#include <mysql_version.h>
#if MYSQL_VERSION_ID>=50515
#include "sql_class.h"
#include "sql_array.h"
#elif MYSQL_VERSION_ID>50100
#include "mysql_priv.h"
#include <mysql/plugin.h>
#else
#include "../mysql_priv.h"
#endif
#include <mysys_err.h>
#include <my_sys.h>
#include <mysql.h> // include client for INSERT table (sort of redoing federated..)
#ifndef _WIN32
// UNIX-specific
#include <my_net.h>
#include <netdb.h>
#include <sys/un.h>
#define RECV_FLAGS MSG_WAITALL
#define sphSockClose(_sock) ::close(_sock)
#else
// Windows-specific
#include <io.h>
#define snprintf _snprintf
#define RECV_FLAGS 0
#define sphSockClose(_sock) ::closesocket(_sock)
#endif
#include <ctype.h>
#include "ha_sphinx.h"
#ifndef MSG_WAITALL
#define MSG_WAITALL 0
#endif
#if defined(_MSC_VER) && _MSC_VER>=1400
#pragma warning(push,4)
#endif
/////////////////////////////////////////////////////////////////////////////
/// there might be issues with min() on different platforms (eg. Gentoo, they say)
#define Min(a,b) ((a)<(b)?(a):(b))
/// unaligned RAM accesses are forbidden on SPARC
#if defined(sparc) || defined(__sparc__)
#define UNALIGNED_RAM_ACCESS 0
#else
#define UNALIGNED_RAM_ACCESS 1
#endif
#if UNALIGNED_RAM_ACCESS
/// pass-through wrapper
template < typename T > inline T sphUnalignedRead ( const T & tRef )
{
return tRef;
}
/// pass-through wrapper
template < typename T > void sphUnalignedWrite ( void * pPtr, const T & tVal )
{
*(T*)pPtr = tVal;
}
#else
/// unaligned read wrapper for some architectures (eg. SPARC)
template < typename T >
inline T sphUnalignedRead ( const T & tRef )
{
T uTmp;
byte * pSrc = (byte *) &tRef;
byte * pDst = (byte *) &uTmp;
for ( int i=0; i<(int)sizeof(T); i++ )
*pDst++ = *pSrc++;
return uTmp;
}
/// unaligned write wrapper for some architectures (eg. SPARC)
template < typename T >
void sphUnalignedWrite ( void * pPtr, const T & tVal )
{
byte * pDst = (byte *) pPtr;
byte * pSrc = (byte *) &tVal;
for ( int i=0; i<(int)sizeof(T); i++ )
*pDst++ = *pSrc++;
}
#endif
#if MYSQL_VERSION_ID>=50515
#define sphinx_hash_init my_hash_init
#define sphinx_hash_free my_hash_free
#define sphinx_hash_search my_hash_search
#define sphinx_hash_delete my_hash_delete
#else
#define sphinx_hash_init hash_init
#define sphinx_hash_free hash_free
#define sphinx_hash_search hash_search
#define sphinx_hash_delete hash_delete
#endif
/////////////////////////////////////////////////////////////////////////////
// FIXME! make this all dynamic
#define SPHINXSE_MAX_FILTERS 32
#define SPHINXAPI_DEFAULT_HOST "127.0.0.1"
#define SPHINXAPI_DEFAULT_PORT 9312
#define SPHINXAPI_DEFAULT_INDEX "*"
#define SPHINXQL_DEFAULT_PORT 9306
#define SPHINXSE_SYSTEM_COLUMNS 3
#define SPHINXSE_MAX_ALLOC (16*1024*1024)
#define SPHINXSE_MAX_KEYWORDSTATS 4096
#define SPHINXSE_VERSION "2.2.6-release"
// FIXME? the following is cut-n-paste from sphinx.h and searchd.cpp
// cut-n-paste is somewhat simpler that adding dependencies however..
enum
{
SPHINX_SEARCHD_PROTO = 1,
SEARCHD_COMMAND_SEARCH = 0,
VER_COMMAND_SEARCH = 0x119,
};
/// search query sorting orders
enum ESphSortOrder
{
SPH_SORT_RELEVANCE = 0, ///< sort by document relevance desc, then by date
SPH_SORT_ATTR_DESC = 1, ///< sort by document date desc, then by relevance desc
SPH_SORT_ATTR_ASC = 2, ///< sort by document date asc, then by relevance desc
SPH_SORT_TIME_SEGMENTS = 3, ///< sort by time segments (hour/day/week/etc) desc, then by relevance desc
SPH_SORT_EXTENDED = 4, ///< sort by SQL-like expression (eg. "@relevance DESC, price ASC, @id DESC")
SPH_SORT_EXPR = 5, ///< sort by expression
SPH_SORT_TOTAL
};
/// search query matching mode
enum ESphMatchMode
{
SPH_MATCH_ALL = 0, ///< match all query words
SPH_MATCH_ANY, ///< match any query word
SPH_MATCH_PHRASE, ///< match this exact phrase
SPH_MATCH_BOOLEAN, ///< match this boolean query
SPH_MATCH_EXTENDED, ///< match this extended query
SPH_MATCH_FULLSCAN, ///< match all document IDs w/o fulltext query, apply filters
SPH_MATCH_EXTENDED2, ///< extended engine V2
SPH_MATCH_TOTAL
};
/// search query relevance ranking mode
enum ESphRankMode
{
SPH_RANK_PROXIMITY_BM25 = 0, ///< default mode, phrase proximity major factor and BM25 minor one
SPH_RANK_BM25 = 1, ///< statistical mode, BM25 ranking only (faster but worse quality)
SPH_RANK_NONE = 2, ///< no ranking, all matches get a weight of 1
SPH_RANK_WORDCOUNT = 3, ///< simple word-count weighting, rank is a weighted sum of per-field keyword occurrence counts
SPH_RANK_PROXIMITY = 4, ///< phrase proximity
SPH_RANK_MATCHANY = 5, ///< emulate old match-any weighting
SPH_RANK_FIELDMASK = 6, ///< sets bits where there were matches
SPH_RANK_SPH04 = 7, ///< codename SPH04, phrase proximity + bm25 + head/exact boost
SPH_RANK_EXPR = 8, ///< expression based ranker
SPH_RANK_TOTAL,
SPH_RANK_DEFAULT = SPH_RANK_PROXIMITY_BM25
};
/// search query grouping mode
enum ESphGroupBy
{
SPH_GROUPBY_DAY = 0, ///< group by day
SPH_GROUPBY_WEEK = 1, ///< group by week
SPH_GROUPBY_MONTH = 2, ///< group by month
SPH_GROUPBY_YEAR = 3, ///< group by year
SPH_GROUPBY_ATTR = 4, ///< group by attribute value
SPH_GROUPBY_ATTRPAIR = 5, ///< group by sequential attrs pair (rendered redundant by 64bit attrs support; removed)
SPH_GROUPBY_MULTIPLE = 6 ///< group by on multiple attribute values
};
/// known attribute types
enum
{
SPH_ATTR_NONE = 0, ///< not an attribute at all
SPH_ATTR_INTEGER = 1, ///< this attr is just an integer
SPH_ATTR_TIMESTAMP = 2, ///< this attr is a timestamp
SPH_ATTR_ORDINAL = 3, ///< this attr is an ordinal string number (integer at search time, specially handled at indexing time)
SPH_ATTR_BOOL = 4, ///< this attr is a boolean bit field
SPH_ATTR_FLOAT = 5,
SPH_ATTR_BIGINT = 6,
SPH_ATTR_STRING = 7, ///< string (binary; in-memory)
SPH_ATTR_UINT32SET = 0x40000001UL, ///< this attr is multiple int32 values (0 or more)
SPH_ATTR_UINT64SET = 0x40000002UL ///< this attr is multiple int64 values (0 or more)
};
/// known answers
enum
{
SEARCHD_OK = 0, ///< general success, command-specific reply follows
SEARCHD_ERROR = 1, ///< general failure, error message follows
SEARCHD_RETRY = 2, ///< temporary failure, error message follows, client should retry later
SEARCHD_WARNING = 3 ///< general success, warning message and command-specific reply follow
};
//////////////////////////////////////////////////////////////////////////////
#define SPHINX_DEBUG_OUTPUT 0
#define SPHINX_DEBUG_CALLS 0
#include <stdarg.h>
#if SPHINX_DEBUG_OUTPUT
inline void SPH_DEBUG ( const char * format, ... )
{
va_list ap;
va_start ( ap, format );
fprintf ( stderr, "SphinxSE: " );
vfprintf ( stderr, format, ap );
fprintf ( stderr, "\n" );
va_end ( ap );
}
#else
inline void SPH_DEBUG ( const char *, ... ) {}
#endif
#if SPHINX_DEBUG_CALLS
#define SPH_ENTER_FUNC() { SPH_DEBUG ( "enter %s", __FUNCTION__ ); }
#define SPH_ENTER_METHOD() { SPH_DEBUG ( "enter %s(this=%08x)", __FUNCTION__, this ); }
#define SPH_RET(_arg) { SPH_DEBUG ( "leave %s", __FUNCTION__ ); return _arg; }
#define SPH_VOID_RET() { SPH_DEBUG ( "leave %s", __FUNCTION__ ); return; }
#else
#define SPH_ENTER_FUNC()
#define SPH_ENTER_METHOD()
#define SPH_RET(_arg) { return(_arg); }
#define SPH_VOID_RET() { return; }
#endif
#define SafeDelete(_arg) { delete ( _arg ); (_arg) = NULL; }
#define SafeDeleteArray(_arg) { if ( _arg ) { delete [] ( _arg ); (_arg) = NULL; } }
//////////////////////////////////////////////////////////////////////////////
/// per-table structure that will be shared among all open Sphinx SE handlers
struct CSphSEShare
{
pthread_mutex_t m_tMutex;
THR_LOCK m_tLock;
char * m_sTable;
char * m_sScheme; ///< our connection string
char * m_sHost; ///< points into m_sScheme buffer, DO NOT FREE EXPLICITLY
char * m_sSocket; ///< points into m_sScheme buffer, DO NOT FREE EXPLICITLY
char * m_sIndex; ///< points into m_sScheme buffer, DO NOT FREE EXPLICITLY
ushort m_iPort;
bool m_bSphinxQL; ///< is this read-only SphinxAPI table, or write-only SphinxQL table?
uint m_iTableNameLen;
uint m_iUseCount;
#if MYSQL_VERSION_ID<50610
CHARSET_INFO * m_pTableQueryCharset;
#else
const CHARSET_INFO * m_pTableQueryCharset;
#endif
int m_iTableFields;
char ** m_sTableField;
enum_field_types * m_eTableFieldType;
CSphSEShare ()
: m_sTable ( NULL )
, m_sScheme ( NULL )
, m_sHost ( NULL )
, m_sSocket ( NULL )
, m_sIndex ( NULL )
, m_iPort ( 0 )
, m_bSphinxQL ( false )
, m_iTableNameLen ( 0 )
, m_iUseCount ( 1 )
, m_pTableQueryCharset ( NULL )
, m_iTableFields ( 0 )
, m_sTableField ( NULL )
, m_eTableFieldType ( NULL )
{
thr_lock_init ( &m_tLock );
pthread_mutex_init ( &m_tMutex, MY_MUTEX_INIT_FAST );
}
~CSphSEShare ()
{
pthread_mutex_destroy ( &m_tMutex );
thr_lock_delete ( &m_tLock );
SafeDeleteArray ( m_sTable );
SafeDeleteArray ( m_sScheme );
ResetTable ();
}
void ResetTable ()
{
for ( int i=0; i<m_iTableFields; i++ )
SafeDeleteArray ( m_sTableField[i] );
SafeDeleteArray ( m_sTableField );
SafeDeleteArray ( m_eTableFieldType );
}
};
/// schema attribute
struct CSphSEAttr
{
char * m_sName; ///< attribute name (received from Sphinx)
uint32 m_uType; ///< attribute type (received from Sphinx)
int m_iField; ///< field index in current table (-1 if none)
CSphSEAttr()
: m_sName ( NULL )
, m_uType ( SPH_ATTR_NONE )
, m_iField ( -1 )
{}
~CSphSEAttr ()
{
SafeDeleteArray ( m_sName );
}
};
/// word stats
struct CSphSEWordStats
{
char * m_sWord;
int m_iDocs;
int m_iHits;
CSphSEWordStats ()
: m_sWord ( NULL )
, m_iDocs ( 0 )
, m_iHits ( 0 )
{}
~CSphSEWordStats ()
{
SafeDeleteArray ( m_sWord );
}
};
/// request stats
struct CSphSEStats
{
public:
int m_iMatchesTotal;
int m_iMatchesFound;
int m_iQueryMsec;
int m_iWords;
CSphSEWordStats * m_dWords;
bool m_bLastError;
char m_sLastMessage[1024];
CSphSEStats()
: m_dWords ( NULL )
{
Reset ();
}
void Reset ()
{
m_iMatchesTotal = 0;
m_iMatchesFound = 0;
m_iQueryMsec = 0;
m_iWords = 0;
m_bLastError = false;
m_sLastMessage[0] = '\0';
SafeDeleteArray ( m_dWords );
}
~CSphSEStats()
{
SafeDeleteArray ( m_dWords );
}
};
/// thread local storage
struct CSphSEThreadTable
{
static const int MAX_QUERY_LEN = 262144; // 256k should be enough, right?
bool m_bStats;
CSphSEStats m_tStats;
bool m_bQuery;
char m_sQuery[MAX_QUERY_LEN];
#if MYSQL_VERSION_ID<50610
CHARSET_INFO * m_pQueryCharset;
#else
const CHARSET_INFO * m_pQueryCharset;
#endif
bool m_bReplace; ///< are we doing an INSERT or REPLACE
bool m_bCondId; ///< got a value from condition pushdown
longlong m_iCondId; ///< value acquired from id=value condition pushdown
bool m_bCondDone; ///< index_read() is now over
const ha_sphinx * m_pHandler;
CSphSEThreadTable * m_pTableNext;
CSphSEThreadTable ( const ha_sphinx * pHandler )
: m_bStats ( false )
, m_bQuery ( false )
, m_pQueryCharset ( NULL )
, m_bReplace ( false )
, m_bCondId ( false )
, m_iCondId ( 0 )
, m_bCondDone ( false )
, m_pHandler ( pHandler )
, m_pTableNext ( NULL )
{}
};
struct CSphTLS
{
CSphSEThreadTable * m_pHeadTable;
explicit CSphTLS ( const ha_sphinx * pHandler )
{
m_pHeadTable = new CSphSEThreadTable ( pHandler );
}
~CSphTLS()
{
CSphSEThreadTable * pCur = m_pHeadTable;
while ( pCur )
{
CSphSEThreadTable * pNext = pCur->m_pTableNext;
SafeDelete ( pCur );
pCur = pNext;
}
}
};
/// filter types
enum ESphFilter
{
SPH_FILTER_VALUES = 0, ///< filter by integer values set
SPH_FILTER_RANGE = 1, ///< filter by integer range
SPH_FILTER_FLOATRANGE = 2 ///< filter by float range
};
/// search query filter
struct CSphSEFilter
{
public:
ESphFilter m_eType;
char * m_sAttrName;
longlong m_uMinValue;
longlong m_uMaxValue;
float m_fMinValue;
float m_fMaxValue;
int m_iValues;
longlong * m_pValues;
int m_bExclude;
public:
CSphSEFilter ()
: m_eType ( SPH_FILTER_VALUES )
, m_sAttrName ( NULL )
, m_uMinValue ( 0 )
, m_uMaxValue ( UINT_MAX )
, m_fMinValue ( 0.0f )
, m_fMaxValue ( 0.0f )
, m_iValues ( 0 )
, m_pValues ( NULL )
, m_bExclude ( 0 )
{
}
~CSphSEFilter ()
{
SafeDeleteArray ( m_pValues );
}
};
/// float vs dword conversion
inline uint32 sphF2DW ( float f ) { union { float f; uint32 d; } u; u.f = f; return u.d; }
/// dword vs float conversion
inline float sphDW2F ( uint32 d ) { union { float f; uint32 d; } u; u.d = d; return u.f; }
/// client-side search query
struct CSphSEQuery
{
public:
const char * m_sHost;
int m_iPort;
private:
char * m_sQueryBuffer;
const char * m_sIndex;
int m_iOffset;
int m_iLimit;
bool m_bQuery;
const char * m_sQuery;
uint32 * m_pWeights;
int m_iWeights;
ESphMatchMode m_eMode;
ESphRankMode m_eRanker;
char * m_sRankExpr;
ESphSortOrder m_eSort;
const char * m_sSortBy;
int m_iMaxMatches;
int m_iMaxQueryTime;
uint32 m_iMinID;
uint32 m_iMaxID;
int m_iFilters;
CSphSEFilter m_dFilters[SPHINXSE_MAX_FILTERS];
ESphGroupBy m_eGroupFunc;
const char * m_sGroupBy;
const char * m_sGroupSortBy;
int m_iCutoff;
int m_iRetryCount;
int m_iRetryDelay;
const char * m_sGroupDistinct; ///< points to query buffer; do NOT delete
int m_iIndexWeights;
char * m_sIndexWeight[SPHINXSE_MAX_FILTERS]; ///< points to query buffer; do NOT delete
int m_iIndexWeight[SPHINXSE_MAX_FILTERS];
int m_iFieldWeights;
char * m_sFieldWeight[SPHINXSE_MAX_FILTERS]; ///< points to query buffer; do NOT delete
int m_iFieldWeight[SPHINXSE_MAX_FILTERS];
bool m_bGeoAnchor;
const char * m_sGeoLatAttr;
const char * m_sGeoLongAttr;
float m_fGeoLatitude;
float m_fGeoLongitude;
char * m_sComment;
char * m_sSelect;
struct Override_t
{
Override_t() : m_dIds(PSI_INSTRUMENT_MEM), m_dValues(PSI_INSTRUMENT_MEM) {}
union Value_t
{
uint32 m_uValue;
longlong m_iValue64;
float m_fValue;
};
char * m_sName; ///< points to query buffer
int m_iType;
Dynamic_array<ulonglong> m_dIds;
Dynamic_array<Value_t> m_dValues;
};
Dynamic_array<Override_t *> m_dOverrides;
public:
char m_sParseError[256];
public:
CSphSEQuery ( const char * sQuery, int iLength, const char * sIndex );
~CSphSEQuery ();
bool Parse ();
int BuildRequest ( char ** ppBuffer );
protected:
char * m_pBuf;
char * m_pCur;
int m_iBufLeft;
bool m_bBufOverrun;
template < typename T > int ParseArray ( T ** ppValues, const char * sValue );
bool ParseField ( char * sField );
void SendBytes ( const void * pBytes, int iBytes );
void SendWord ( short int v ) { v = ntohs(v); SendBytes ( &v, sizeof(v) ); }
void SendInt ( int v ) { v = ntohl(v); SendBytes ( &v, sizeof(v) ); }
void SendDword ( uint v ) { v = ntohl(v) ;SendBytes ( &v, sizeof(v) ); }
void SendUint64 ( ulonglong v ) { SendDword ( (uint)(v>>32) ); SendDword ( (uint)(v&0xFFFFFFFFUL) ); }
void SendString ( const char * v ) { int iLen = strlen(v); SendDword(iLen); SendBytes ( v, iLen ); }
void SendFloat ( float v ) { SendDword ( sphF2DW(v) ); }
};
#ifdef HAVE_EXPLICIT_TEMPLATE_INSTANTIATION
template int CSphSEQuery::ParseArray<uint32> ( uint32 **, const char * );
template int CSphSEQuery::ParseArray<longlong> ( longlong **, const char * );
#endif
//////////////////////////////////////////////////////////////////////////////
#if MYSQL_VERSION_ID>50100
#if MYSQL_VERSION_ID<50114
#error Sphinx SE requires MySQL 5.1.14 or higher if compiling for 5.1.x series!
#endif
static handler * sphinx_create_handler ( handlerton * hton, TABLE_SHARE * table, MEM_ROOT * mem_root );
static int sphinx_init_func ( void * p );
static int sphinx_close_connection ( handlerton * hton, THD * thd );
static int sphinx_panic ( handlerton * hton, enum ha_panic_function flag );
static bool sphinx_show_status ( handlerton * hton, THD * thd, stat_print_fn * stat_print, enum ha_stat_type stat_type );
#else
static bool sphinx_init_func_for_handlerton ();
static int sphinx_close_connection ( THD * thd );
bool sphinx_show_status ( THD * thd );
#endif // >50100
//////////////////////////////////////////////////////////////////////////////
static const char sphinx_hton_name[] = "SPHINX";
static const char sphinx_hton_comment[] = "Sphinx storage engine " SPHINXSE_VERSION;
#if MYSQL_VERSION_ID<50100
handlerton sphinx_hton =
{
#ifdef MYSQL_HANDLERTON_INTERFACE_VERSION
MYSQL_HANDLERTON_INTERFACE_VERSION,
#endif
sphinx_hton_name,
SHOW_OPTION_YES,
sphinx_hton_comment,
DB_TYPE_SPHINX_DB,
sphinx_init_func_for_handlerton,
0, // slot
0, // savepoint size
sphinx_close_connection, // close_connection
NULL, // savepoint
NULL, // rollback to savepoint
NULL, // release savepoint
NULL, // commit
NULL, // rollback
NULL, // prepare
NULL, // recover
NULL, // commit_by_xid
NULL, // rollback_by_xid
NULL, // create_cursor_read_view
NULL, // set_cursor_read_view
NULL, // close_cursor_read_view
HTON_CAN_RECREATE | HTON_AUTOMATIC_DELETE_TABLE
};
#else
static handlerton * sphinx_hton_ptr = NULL;
#endif
//////////////////////////////////////////////////////////////////////////////
// variables for Sphinx shared methods
pthread_mutex_t sphinx_mutex; // mutex to init the hash
static int sphinx_init = 0; // flag whether the hash was initialized
static HASH sphinx_open_tables; // hash used to track open tables
//////////////////////////////////////////////////////////////////////////////
// INITIALIZATION AND SHUTDOWN
//////////////////////////////////////////////////////////////////////////////
// hashing function
#if MYSQL_VERSION_ID>=50120
typedef size_t GetKeyLength_t;
#else
typedef uint GetKeyLength_t;
#endif
static byte * sphinx_get_key ( const byte * pSharePtr, GetKeyLength_t * pLength, my_bool )
{
CSphSEShare * pShare = (CSphSEShare *) pSharePtr;
*pLength = (size_t) pShare->m_iTableNameLen;
return (byte*) pShare->m_sTable;
}
#if MYSQL_VERSION_ID<50100
static int sphinx_init_func ( void * ) // to avoid unused arg warning
#else
static int sphinx_init_func ( void * p )
#endif
{
SPH_ENTER_FUNC();
if ( !sphinx_init )
{
sphinx_init = 1;
void ( pthread_mutex_init ( &sphinx_mutex, MY_MUTEX_INIT_FAST ) );
sphinx_hash_init ( PSI_NOT_INSTRUMENTED, &sphinx_open_tables,
system_charset_info, 32, 0, 0,
sphinx_get_key, 0, 0 );
#if MYSQL_VERSION_ID > 50100
handlerton * hton = (handlerton*) p;
hton->db_type = DB_TYPE_AUTOASSIGN;
hton->create = sphinx_create_handler;
hton->close_connection = sphinx_close_connection;
hton->show_status = sphinx_show_status;
hton->panic = sphinx_panic;
hton->drop_table= [](handlerton *, const char*) { return -1; };
hton->flags = HTON_CAN_RECREATE;
#endif
}
SPH_RET(0);
}
#if MYSQL_VERSION_ID<50100
static bool sphinx_init_func_for_handlerton ()
{
return sphinx_init_func ( &sphinx_hton );
}
#endif
#if MYSQL_VERSION_ID>50100
static int sphinx_close_connection ( handlerton * hton, THD * thd )
{
// deallocate common handler data
SPH_ENTER_FUNC();
CSphTLS * pTls = (CSphTLS *) thd_get_ha_data ( thd, hton );
SafeDelete ( pTls );
SPH_RET(0);
}
static int sphinx_done_func ( void * )
{
SPH_ENTER_FUNC();
int error __attribute__ ((unused)) = 0;
if ( sphinx_init )
{
sphinx_init = 0;
if ( sphinx_open_tables.records )
error = 1;
sphinx_hash_free ( &sphinx_open_tables );
pthread_mutex_destroy ( &sphinx_mutex );
}
SPH_RET(0);
}
static int sphinx_panic ( handlerton * hton, enum ha_panic_function )
{
return sphinx_done_func ( hton );
}
#else
static int sphinx_close_connection ( THD * thd )
{
// deallocate common handler data
SPH_ENTER_FUNC();
CSphTLS * pTls = (CSphTLS *) thd->ha_data[sphinx_hton.slot];
SafeDelete ( pTls );
thd->ha_data[sphinx_hton.slot] = NULL;
SPH_RET(0);
}
#endif // >50100
//////////////////////////////////////////////////////////////////////////////
// SHOW STATUS
//////////////////////////////////////////////////////////////////////////////
#if MYSQL_VERSION_ID>50100
static bool sphinx_show_status ( handlerton * hton, THD * thd, stat_print_fn * stat_print,
enum ha_stat_type )
#else
bool sphinx_show_status ( THD * thd )
#endif
{
SPH_ENTER_FUNC();
#if MYSQL_VERSION_ID<50100
Protocol * protocol = thd->protocol;
List<Item> field_list;
#endif
char buf1[IO_SIZE];
uint buf1len;
char buf2[IO_SIZE];
uint buf2len = 0;
String words;
buf1[0] = '\0';
buf2[0] = '\0';
#if MYSQL_VERSION_ID>50100
// 5.1.x style stats
CSphTLS * pTls = (CSphTLS*) ( thd_get_ha_data ( thd, hton ) );
#define LOC_STATS(_key,_keylen,_val,_vallen) \
stat_print ( thd, sphinx_hton_name, strlen(sphinx_hton_name), _key, _keylen, _val, _vallen );
#else
// 5.0.x style stats
if ( have_sphinx_db!=SHOW_OPTION_YES )
{
my_message ( ER_NOT_SUPPORTED_YET,
"failed to call SHOW SPHINX STATUS: --skip-sphinx was specified",
MYF(0) );
SPH_RET(TRUE);
}
CSphTLS * pTls = (CSphTLS*) thd->ha_data[sphinx_hton.slot];
field_list.push_back ( new Item_empty_string ( thd, "Type", 10 ) );
field_list.push_back ( new Item_empty_string ( thd, "Name", FN_REFLEN ) );
field_list.push_back ( new Item_empty_string ( thd, "Status", 10 ) );
if ( protocol->send_fields ( &field_list, Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF ) )
SPH_RET(TRUE);
#define LOC_STATS(_key,_keylen,_val,_vallen) \
protocol->prepare_for_resend (); \
protocol->store ( "SPHINX", 6, system_charset_info ); \
protocol->store ( _key, _keylen, system_charset_info ); \
protocol->store ( _val, _vallen, system_charset_info ); \
if ( protocol->write() ) \
SPH_RET(TRUE);
#endif
// show query stats
if ( pTls && pTls->m_pHeadTable && pTls->m_pHeadTable->m_bStats )
{
const CSphSEStats * pStats = &pTls->m_pHeadTable->m_tStats;
buf1len = my_snprintf ( buf1, sizeof(buf1),
"total: %d, total found: %d, time: %d, words: %d",
pStats->m_iMatchesTotal, pStats->m_iMatchesFound, pStats->m_iQueryMsec, pStats->m_iWords );
LOC_STATS ( "stats", 5, buf1, buf1len );
if ( pStats->m_iWords )
{
for ( int i=0; i<pStats->m_iWords; i++ )
{
CSphSEWordStats & tWord = pStats->m_dWords[i];
buf2len = my_snprintf ( buf2, sizeof(buf2), "%s%s:%d:%d ",
buf2, tWord.m_sWord, tWord.m_iDocs, tWord.m_iHits );
}
// convert it if we can
const char * sWord = buf2;
int iWord = buf2len;
String sBuf3;
if ( pTls->m_pHeadTable->m_pQueryCharset )
{
uint iErrors;
sBuf3.copy ( buf2, buf2len, pTls->m_pHeadTable->m_pQueryCharset, system_charset_info, &iErrors );
sWord = sBuf3.c_ptr();
iWord = sBuf3.length();
}
LOC_STATS ( "words", 5, sWord, iWord );
}
}
// show last error or warning (either in addition to stats, or on their own)
if ( pTls && pTls->m_pHeadTable && pTls->m_pHeadTable->m_tStats.m_sLastMessage[0] )
{
const char * sMessageType = pTls->m_pHeadTable->m_tStats.m_bLastError ? "error" : "warning";
LOC_STATS (
sMessageType, strlen ( sMessageType ),
pTls->m_pHeadTable->m_tStats.m_sLastMessage, strlen ( pTls->m_pHeadTable->m_tStats.m_sLastMessage ) );
} else
{
// well, nothing to show just yet
#if MYSQL_VERSION_ID < 50100
LOC_STATS ( "stats", 5, "no query has been executed yet", sizeof("no query has been executed yet")-1 );
#endif
}
#if MYSQL_VERSION_ID < 50100
send_eof(thd);
#endif
SPH_RET(FALSE);
}
//////////////////////////////////////////////////////////////////////////////
// HELPERS
//////////////////////////////////////////////////////////////////////////////
static char * sphDup ( const char * sSrc, int iLen=-1 )
{
if ( !sSrc )
return NULL;
if ( iLen<0 )
iLen = strlen(sSrc);
char * sRes = new char [ 1+iLen ];
memcpy ( sRes, sSrc, iLen );
sRes[iLen] = '\0';
return sRes;
}
static void sphLogError ( const char * sFmt, ... )
{
// emit timestamp
#ifdef _WIN32
SYSTEMTIME t;
GetLocalTime ( &t );
fprintf ( stderr, "%02d%02d%02d %2d:%02d:%02d SphinxSE: internal error: ",
(int)t.wYear % 100, (int)t.wMonth, (int)t.wDay,
(int)t.wHour, (int)t.wMinute, (int)t.wSecond );
#else
// Unix version
time_t tStamp;
time ( &tStamp );
struct tm * pParsed;
#ifdef HAVE_LOCALTIME_R
struct tm tParsed;
localtime_r ( &tStamp, &tParsed );
pParsed = &tParsed;
#else
pParsed = localtime ( &tStamp );
#endif // HAVE_LOCALTIME_R
fprintf ( stderr, "%02d%02d%02d %2d:%02d:%02d SphinxSE: internal error: ",
pParsed->tm_year % 100, pParsed->tm_mon + 1, pParsed->tm_mday,
pParsed->tm_hour, pParsed->tm_min, pParsed->tm_sec);
#endif // _WIN32
// emit message
va_list ap;
va_start ( ap, sFmt );
vfprintf ( stderr, sFmt, ap );
va_end ( ap );
// emit newline
fprintf ( stderr, "\n" );
}
// the following scheme variants are recognized
//
// sphinx://host[:port]/index
// sphinxql://host[:port]/index
// unix://unix/domain/socket[:index]
static bool ParseUrl ( CSphSEShare * share, TABLE * table, bool bCreate )
{
SPH_ENTER_FUNC();
if ( share )
{
// check incoming stuff
if ( !table )
{
sphLogError ( "table==NULL in ParseUrl()" );
return false;
}
if ( !table->s )
{
sphLogError ( "(table->s)==NULL in ParseUrl()" );
return false;
}
// free old stuff
share->ResetTable ();
// fill new stuff
share->m_iTableFields = table->s->fields;
if ( share->m_iTableFields )
{
share->m_sTableField = new char * [ share->m_iTableFields ];
share->m_eTableFieldType = new enum_field_types [ share->m_iTableFields ];
for ( int i=0; i<share->m_iTableFields; i++ )
{
share->m_sTableField[i] = sphDup ( table->field[i]->field_name.str );
share->m_eTableFieldType[i] = table->field[i]->type();
}
}
}
// defaults
bool bOk = true;
bool bQL = false;
char * sScheme = NULL;
char * sHost = (char*) SPHINXAPI_DEFAULT_HOST;
char * sIndex = (char*) SPHINXAPI_DEFAULT_INDEX;
int iPort = SPHINXAPI_DEFAULT_PORT;
// parse connection string, if any
while ( table->s->connect_string.length!=0 )
{
sScheme = sphDup ( table->s->connect_string.str, table->s->connect_string.length );
sHost = strstr ( sScheme, "://" );
if ( !sHost )
{
bOk = false;
break;
}
sHost[0] = '\0';
sHost += 3;
/////////////////////////////
// sphinxapi via unix socket
/////////////////////////////
if ( !strcmp ( sScheme, "unix" ) )
{
sHost--; // reuse last slash
iPort = 0;
if (!( sIndex = strrchr ( sHost, ':' ) ))
sIndex = (char*) SPHINXAPI_DEFAULT_INDEX;
else
{
*sIndex++ = '\0';
if ( !*sIndex )
sIndex = (char*) SPHINXAPI_DEFAULT_INDEX;
}
bOk = true;
break;
}
/////////////////////
// sphinxapi via tcp
/////////////////////
if ( !strcmp ( sScheme, "sphinx" ) )
{
char * sPort = strchr ( sHost, ':' );
if ( sPort )
{
*sPort++ = '\0';
if ( *sPort )
{
sIndex = strchr ( sPort, '/' );
if ( sIndex )
*sIndex++ = '\0';
else
sIndex = (char*) SPHINXAPI_DEFAULT_INDEX;
iPort = atoi(sPort);
if ( !iPort )
iPort = SPHINXAPI_DEFAULT_PORT;
}
} else
{
sIndex = strchr ( sHost, '/' );
if ( sIndex )
*sIndex++ = '\0';
else
sIndex = (char*) SPHINXAPI_DEFAULT_INDEX;
}
bOk = true;
break;
}
////////////
// sphinxql
////////////
if ( !strcmp ( sScheme, "sphinxql" ) )
{
bQL = true;
iPort = SPHINXQL_DEFAULT_PORT;
// handle port
char * sPort = strchr ( sHost, ':' );
sIndex = sHost; // starting point for index name search
if ( sPort )
{
*sPort++ = '\0';
sIndex = sPort;
iPort = atoi(sPort);
if ( !iPort )
{
bOk = false; // invalid port; can report ER_FOREIGN_DATA_STRING_INVALID
break;
}
}
// find index
sIndex = strchr ( sIndex, '/' );
if ( sIndex )
*sIndex++ = '\0';
// final checks
// host and index names are required
bOk = ( sHost && *sHost && sIndex && *sIndex );
break;
}
// unknown case
bOk = false;
break;
}
if ( !bOk )
{
my_error ( bCreate ? ER_FOREIGN_DATA_STRING_INVALID_CANT_CREATE : ER_FOREIGN_DATA_STRING_INVALID,
MYF(0), table->s->connect_string.str);
} else
{
if ( share )
{
SafeDeleteArray ( share->m_sScheme );
share->m_sScheme = sScheme;
share->m_sHost = sHost;
share->m_sIndex = sIndex;
share->m_iPort = (ushort)iPort;
share->m_bSphinxQL = bQL;
}
}
if ( !bOk && !share )
SafeDeleteArray ( sScheme );
SPH_RET(bOk);
}
// Example of simple lock controls. The "share" it creates is structure we will
// pass to each sphinx handler. Do you have to have one of these? Well, you have
// pieces that are used for locking, and they are needed to function.
static CSphSEShare * get_share ( const char * table_name, TABLE * table )
{
SPH_ENTER_FUNC();
pthread_mutex_lock ( &sphinx_mutex );
CSphSEShare * pShare = NULL;
for ( ;; )
{
// check if we already have this share
#if MYSQL_VERSION_ID>=50120
pShare = (CSphSEShare*) sphinx_hash_search ( &sphinx_open_tables, (const uchar *) table_name, strlen(table_name) );
#else
#ifdef _WIN32
pShare = (CSphSEShare*) sphinx_hash_search ( &sphinx_open_tables, (const byte *) table_name, strlen(table_name) );
#else
pShare = (CSphSEShare*) sphinx_hash_search ( &sphinx_open_tables, table_name, strlen(table_name) );
#endif // win
#endif // pre-5.1.20
if ( pShare )
{
pShare->m_iUseCount++;
break;
}
// try to allocate new share
pShare = new CSphSEShare ();
if ( !pShare )
break;
// try to setup it
if ( !ParseUrl ( pShare, table, false ) )
{
SafeDelete ( pShare );
break;
}
if ( !pShare->m_bSphinxQL )
pShare->m_pTableQueryCharset = table->field[2]->charset();
// try to hash it
pShare->m_iTableNameLen = strlen(table_name);
pShare->m_sTable = sphDup ( table_name );
if ( my_hash_insert ( &sphinx_open_tables, (const byte *)pShare ) )
{
SafeDelete ( pShare );
break;
}
// all seems fine
break;
}
pthread_mutex_unlock ( &sphinx_mutex );
SPH_RET(pShare);
}
// Free lock controls. We call this whenever we close a table. If the table had
// the last reference to the share then we free memory associated with it.
static int free_share ( CSphSEShare * pShare )
{
SPH_ENTER_FUNC();
pthread_mutex_lock ( &sphinx_mutex );
if ( !--pShare->m_iUseCount )
{
sphinx_hash_delete ( &sphinx_open_tables, (byte *)pShare );
SafeDelete ( pShare );
}
pthread_mutex_unlock ( &sphinx_mutex );
SPH_RET(0);
}
#if MYSQL_VERSION_ID>50100
static handler * sphinx_create_handler ( handlerton * hton, TABLE_SHARE * table, MEM_ROOT * mem_root )
{
sphinx_hton_ptr = hton;
return new ( mem_root ) ha_sphinx ( hton, table );
}
#endif
//////////////////////////////////////////////////////////////////////////////
// CLIENT-SIDE REQUEST STUFF
//////////////////////////////////////////////////////////////////////////////
CSphSEQuery::CSphSEQuery ( const char * sQuery, int iLength, const char * sIndex )
: m_sHost ( "" )
, m_iPort ( 0 )
, m_sIndex ( sIndex ? sIndex : "*" )
, m_iOffset ( 0 )
, m_iLimit ( 20 )
, m_bQuery ( false )
, m_sQuery ( "" )
, m_pWeights ( NULL )
, m_iWeights ( 0 )
, m_eMode ( SPH_MATCH_ALL )
, m_eRanker ( SPH_RANK_PROXIMITY_BM25 )
, m_sRankExpr ( NULL )
, m_eSort ( SPH_SORT_RELEVANCE )
, m_sSortBy ( "" )
, m_iMaxMatches ( 1000 )
, m_iMaxQueryTime ( 0 )
, m_iMinID ( 0 )
, m_iMaxID ( 0 )
, m_iFilters ( 0 )
, m_eGroupFunc ( SPH_GROUPBY_DAY )
, m_sGroupBy ( "" )
, m_sGroupSortBy ( "@group desc" )
, m_iCutoff ( 0 )
, m_iRetryCount ( 0 )
, m_iRetryDelay ( 0 )
, m_sGroupDistinct ( "" )
, m_iIndexWeights ( 0 )
, m_iFieldWeights ( 0 )
, m_bGeoAnchor ( false )
, m_sGeoLatAttr ( "" )
, m_sGeoLongAttr ( "" )
, m_fGeoLatitude ( 0.0f )
, m_fGeoLongitude ( 0.0f )
, m_sComment ( (char*) "" )
, m_sSelect ( (char*) "*" )
, m_dOverrides (PSI_INSTRUMENT_MEM)
, m_pBuf ( NULL )
, m_pCur ( NULL )
, m_iBufLeft ( 0 )
, m_bBufOverrun ( false )
{
m_sQueryBuffer = new char [ iLength+2 ];
memcpy ( m_sQueryBuffer, sQuery, iLength );
m_sQueryBuffer[iLength] = ';';
m_sQueryBuffer[iLength+1] = '\0';
}
CSphSEQuery::~CSphSEQuery ()
{
SPH_ENTER_METHOD();
SafeDeleteArray ( m_sQueryBuffer );
SafeDeleteArray ( m_pWeights );
SafeDeleteArray ( m_pBuf );
for ( size_t i=0; i<m_dOverrides.elements(); i++ )
SafeDelete ( m_dOverrides.at(i) );
SPH_VOID_RET();
}
template < typename T >
int CSphSEQuery::ParseArray ( T ** ppValues, const char * sValue )
{
SPH_ENTER_METHOD();
assert ( ppValues );
assert ( !(*ppValues) );
const char * pValue;
bool bPrevDigit = false;
int iValues = 0;
// count the values
for ( pValue=sValue; *pValue; pValue++ )
{
bool bDigit = (*pValue)>='0' && (*pValue)<='9';
if ( bDigit && !bPrevDigit )
iValues++;
bPrevDigit = bDigit;
}
if ( !iValues )
SPH_RET(0);
// extract the values
T * pValues = new T [ iValues ];
*ppValues = pValues;
int iIndex = 0, iSign = 1;
T uValue = 0;
bPrevDigit = false;
for ( pValue=sValue ;; pValue++ )
{
bool bDigit = (*pValue)>='0' && (*pValue)<='9';
if ( bDigit )
{
if ( !bPrevDigit )
uValue = 0;
uValue = uValue*10 + ( (*pValue)-'0' );
} else if ( bPrevDigit )
{
assert ( iIndex<iValues );
pValues [ iIndex++ ] = uValue * iSign;
iSign = 1;
} else if ( *pValue=='-' )
iSign = -1;
bPrevDigit = bDigit;
if ( !*pValue )
break;
}
SPH_RET ( iValues );
}
static char * chop ( char * s )
{
while ( *s && isspace(*s) )
s++;
char * p = s + strlen(s);
while ( p>s && isspace ( p[-1] ) )
p--;
*p = '\0';
return s;
}
static bool myisattr ( char c )
{
return
( c>='0' && c<='9' ) ||
( c>='a' && c<='z' ) ||
( c>='A' && c<='Z' ) ||
c=='_';
}
static bool myismagic ( char c )
{
return c=='@';
}
static bool myisjson ( char c )
{
return
c=='.' ||
c=='[' ||
c==']';
}
bool CSphSEQuery::ParseField ( char * sField )
{
SPH_ENTER_METHOD();
// look for option name/value separator
char * sValue = strchr ( sField, '=' );
if ( !sValue || sValue==sField || sValue[-1]=='\\' )
{
// by default let's assume it's just query
if ( sField[0] )
{
if ( m_bQuery )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "search query already specified; '%s' is redundant", sField );
SPH_RET(false);
} else
{
m_sQuery = sField;
m_bQuery = true;
// unescape only 1st one
char *s = sField, *d = sField;
int iSlashes = 0;
while ( *s )
{
iSlashes = ( *s=='\\' ) ? iSlashes+1 : 0;
if ( ( iSlashes%2 )==0 ) *d++ = *s;
s++;
}
*d = '\0';
}
}
SPH_RET(true);
}
// split
*sValue++ = '\0';
sValue = chop ( sValue );
int iValue = atoi ( sValue );
// handle options
char * sName = chop ( sField );
if ( !strcmp ( sName, "query" ) ) m_sQuery = sValue;
else if ( !strcmp ( sName, "host" ) ) m_sHost = sValue;
else if ( !strcmp ( sName, "port" ) ) m_iPort = iValue;
else if ( !strcmp ( sName, "index" ) ) m_sIndex = sValue;
else if ( !strcmp ( sName, "offset" ) ) m_iOffset = iValue;
else if ( !strcmp ( sName, "limit" ) ) m_iLimit = iValue;
else if ( !strcmp ( sName, "weights" ) ) m_iWeights = ParseArray<uint32> ( &m_pWeights, sValue );
else if ( !strcmp ( sName, "minid" ) ) m_iMinID = iValue;
else if ( !strcmp ( sName, "maxid" ) ) m_iMaxID = iValue;
else if ( !strcmp ( sName, "maxmatches" ) ) m_iMaxMatches = iValue;
else if ( !strcmp ( sName, "maxquerytime" ) ) m_iMaxQueryTime = iValue;
else if ( !strcmp ( sName, "groupsort" ) ) m_sGroupSortBy = sValue;
else if ( !strcmp ( sName, "distinct" ) ) m_sGroupDistinct = sValue;
else if ( !strcmp ( sName, "cutoff" ) ) m_iCutoff = iValue;
else if ( !strcmp ( sName, "comment" ) ) m_sComment = sValue;
else if ( !strcmp ( sName, "select" ) ) m_sSelect = sValue;
else if ( !strcmp ( sName, "mode" ) )
{
m_eMode = SPH_MATCH_ALL;
if ( !strcmp ( sValue, "any" ) ) m_eMode = SPH_MATCH_ANY;
else if ( !strcmp ( sValue, "phrase" ) ) m_eMode = SPH_MATCH_PHRASE;
else if ( !strcmp ( sValue, "boolean" ) ) m_eMode = SPH_MATCH_BOOLEAN;
else if ( !strcmp ( sValue, "ext" ) ) m_eMode = SPH_MATCH_EXTENDED;
else if ( !strcmp ( sValue, "extended" ) ) m_eMode = SPH_MATCH_EXTENDED;
else if ( !strcmp ( sValue, "ext2" ) ) m_eMode = SPH_MATCH_EXTENDED2;
else if ( !strcmp ( sValue, "extended2" ) ) m_eMode = SPH_MATCH_EXTENDED2;
else if ( !strcmp ( sValue, "all" ) ) m_eMode = SPH_MATCH_ALL;
else if ( !strcmp ( sValue, "fullscan" ) ) m_eMode = SPH_MATCH_FULLSCAN;
else
{
snprintf ( m_sParseError, sizeof(m_sParseError), "unknown matching mode '%s'", sValue );
SPH_RET(false);
}
} else if ( !strcmp ( sName, "ranker" ) )
{
m_eRanker = SPH_RANK_PROXIMITY_BM25;
if ( !strcmp ( sValue, "proximity_bm25" ) ) m_eRanker = SPH_RANK_PROXIMITY_BM25;
else if ( !strcmp ( sValue, "bm25" ) ) m_eRanker = SPH_RANK_BM25;
else if ( !strcmp ( sValue, "none" ) ) m_eRanker = SPH_RANK_NONE;
else if ( !strcmp ( sValue, "wordcount" ) ) m_eRanker = SPH_RANK_WORDCOUNT;
else if ( !strcmp ( sValue, "proximity" ) ) m_eRanker = SPH_RANK_PROXIMITY;
else if ( !strcmp ( sValue, "matchany" ) ) m_eRanker = SPH_RANK_MATCHANY;
else if ( !strcmp ( sValue, "fieldmask" ) ) m_eRanker = SPH_RANK_FIELDMASK;
else if ( !strcmp ( sValue, "sph04" ) ) m_eRanker = SPH_RANK_SPH04;
else if ( !strncmp ( sValue, "expr:", 5 ) )
{
m_eRanker = SPH_RANK_EXPR;
m_sRankExpr = sValue+5;
} else
{
snprintf ( m_sParseError, sizeof(m_sParseError), "unknown ranking mode '%s'", sValue );
SPH_RET(false);
}
} else if ( !strcmp ( sName, "sort" ) )
{
static const struct
{
const char * m_sName;
ESphSortOrder m_eSort;
} dSortModes[] =
{
{ "relevance", SPH_SORT_RELEVANCE },
{ "attr_desc:", SPH_SORT_ATTR_DESC },
{ "attr_asc:", SPH_SORT_ATTR_ASC },
{ "time_segments:", SPH_SORT_TIME_SEGMENTS },
{ "extended:", SPH_SORT_EXTENDED },
{ "expr:", SPH_SORT_EXPR }
};
int i;
const int nModes = sizeof(dSortModes)/sizeof(dSortModes[0]);
for ( i=0; i<nModes; i++ )
if ( !strncmp ( sValue, dSortModes[i].m_sName, strlen ( dSortModes[i].m_sName ) ) )
{
m_eSort = dSortModes[i].m_eSort;
m_sSortBy = sValue + strlen ( dSortModes[i].m_sName );
break;
}
if ( i==nModes )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "unknown sorting mode '%s'", sValue );
SPH_RET(false);
}
} else if ( !strcmp ( sName, "groupby" ) )
{
static const struct
{
const char * m_sName;
ESphGroupBy m_eFunc;
} dGroupModes[] =
{
{ "day:", SPH_GROUPBY_DAY },
{ "week:", SPH_GROUPBY_WEEK },
{ "month:", SPH_GROUPBY_MONTH },
{ "year:", SPH_GROUPBY_YEAR },
{ "attr:", SPH_GROUPBY_ATTR },
{ "multi:", SPH_GROUPBY_MULTIPLE }
};
int i;
const int nModes = sizeof(dGroupModes)/sizeof(dGroupModes[0]);
for ( i=0; i<nModes; i++ )
if ( !strncmp ( sValue, dGroupModes[i].m_sName, strlen ( dGroupModes[i].m_sName ) ) )
{
m_eGroupFunc = dGroupModes[i].m_eFunc;
m_sGroupBy = sValue + strlen ( dGroupModes[i].m_sName );
break;
}
if ( i==nModes )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "unknown groupby mode '%s'", sValue );
SPH_RET(false);
}
} else if ( m_iFilters<SPHINXSE_MAX_FILTERS &&
( !strcmp ( sName, "range" ) || !strcmp ( sName, "!range" ) || !strcmp ( sName, "floatrange" ) || !strcmp ( sName, "!floatrange" ) ) )
{
for ( ;; )
{
char * p = sName;
CSphSEFilter & tFilter = m_dFilters [ m_iFilters ];
tFilter.m_bExclude = ( *p=='!' ); if ( tFilter.m_bExclude ) p++;
tFilter.m_eType = ( *p=='f' ) ? SPH_FILTER_FLOATRANGE : SPH_FILTER_RANGE;
if (!( p = strchr ( sValue, ',' ) ))
break;
*p++ = '\0';
tFilter.m_sAttrName = chop ( sValue );
sValue = p;
if (!( p = strchr ( sValue, ',' ) ))
break;
*p++ = '\0';
if ( tFilter.m_eType==SPH_FILTER_RANGE )
{
tFilter.m_uMinValue = strtoll ( sValue, NULL, 10 );
tFilter.m_uMaxValue = strtoll ( p, NULL, 10 );
} else
{
tFilter.m_fMinValue = (float)atof(sValue);
tFilter.m_fMaxValue = (float)atof(p);
}
// all ok
m_iFilters++;
break;
}
} else if ( m_iFilters<SPHINXSE_MAX_FILTERS &&
( !strcmp ( sName, "filter" ) || !strcmp ( sName, "!filter" ) ) )
{
for ( ;; )
{
CSphSEFilter & tFilter = m_dFilters [ m_iFilters ];
tFilter.m_eType = SPH_FILTER_VALUES;
tFilter.m_bExclude = ( strcmp ( sName, "!filter" )==0 );
// get the attr name
while ( (*sValue) && !( myisattr(*sValue) || myismagic(*sValue) ) )
sValue++;
if ( !*sValue )
break;
tFilter.m_sAttrName = sValue;
while ( (*sValue) && ( myisattr(*sValue) || myismagic(*sValue) || myisjson(*sValue) ) )
sValue++;
if ( !*sValue )
break;
*sValue++ = '\0';
// get the values
tFilter.m_iValues = ParseArray<longlong> ( &tFilter.m_pValues, sValue );
if ( !tFilter.m_iValues )
{
assert ( !tFilter.m_pValues );
break;
}
// all ok
m_iFilters++;
break;
}
} else if ( !strcmp ( sName, "indexweights" ) || !strcmp ( sName, "fieldweights" ) )
{
bool bIndex = !strcmp ( sName, "indexweights" );
int * pCount = bIndex ? &m_iIndexWeights : &m_iFieldWeights;
char ** pNames = bIndex ? &m_sIndexWeight[0] : &m_sFieldWeight[0];
int * pWeights = bIndex ? &m_iIndexWeight[0] : &m_iFieldWeight[0];
*pCount = 0;
char * p = sValue;
while ( *p && *pCount<SPHINXSE_MAX_FILTERS )
{
// extract attr name
if ( !myisattr(*p) )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "%s: index name expected near '%s'", sName, p );
SPH_RET(false);
}
pNames[*pCount] = p;
while ( myisattr(*p) ) p++;
if ( *p!=',' )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "%s: comma expected near '%s'", sName, p );
SPH_RET(false);
}
*p++ = '\0';
// extract attr value
char * sVal = p;
while ( isdigit(*p) ) p++;
if ( p==sVal )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "%s: integer weight expected near '%s'", sName, sVal );
SPH_RET(false);
}
pWeights[*pCount] = atoi(sVal);
(*pCount)++;
if ( !*p )
break;
if ( *p!=',' )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "%s: comma expected near '%s'", sName, p );
SPH_RET(false);
}
p++;
}
} else if ( !strcmp ( sName, "geoanchor" ) )
{
m_bGeoAnchor = false;
for ( ;; )
{
char * sLat = sValue;
char * p = sValue;
if (!( p = strchr ( p, ',' ) )) break;
*p++ = '\0';
char * sLong = p;
if (!( p = strchr ( p, ',' ) )) break;
*p++ = '\0';
char * sLatVal = p;
if (!( p = strchr ( p, ',' ) )) break;
*p++ = '\0';
char * sLongVal = p;
m_sGeoLatAttr = chop(sLat);
m_sGeoLongAttr = chop(sLong);
m_fGeoLatitude = (float)atof ( sLatVal );
m_fGeoLongitude = (float)atof ( sLongVal );
m_bGeoAnchor = true;
break;
}
if ( !m_bGeoAnchor )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "geoanchor: parse error, not enough comma-separated arguments" );
SPH_RET(false);
}
} else if ( !strcmp ( sName, "override" ) ) // name,type,id:value,id:value,...
{
sName = NULL;
int iType = 0;
CSphSEQuery::Override_t * pOverride = NULL;
// get name and type
char * sRest = sValue;
for ( ;; )
{
sName = sRest;
if ( !*sName )
break;
if (!( sRest = strchr ( sRest, ',' ) ))
break;
*sRest++ = '\0';
char * sType = sRest;
if (!( sRest = strchr ( sRest, ',' ) ))
break;
static const struct
{
const char * m_sName;
int m_iType;
}
dAttrTypes[] =
{
{ "int", SPH_ATTR_INTEGER },
{ "timestamp", SPH_ATTR_TIMESTAMP },
{ "bool", SPH_ATTR_BOOL },
{ "float", SPH_ATTR_FLOAT },
{ "bigint", SPH_ATTR_BIGINT }
};
for ( uint i=0; i<sizeof(dAttrTypes)/sizeof(*dAttrTypes); i++ )
if ( !strncmp ( sType, dAttrTypes[i].m_sName, sRest - sType ) )
{
iType = dAttrTypes[i].m_iType;
break;
}
break;
}
// fail
if ( !sName || !*sName || !iType )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "override: malformed query" );
SPH_RET(false);
}
// grab id:value pairs
sRest++;
while ( sRest )
{
char * sId = sRest;
if (!( sRest = strchr ( sRest, ':' ) )) break;
*sRest++ = '\0';
if (!( sRest - sId )) break;
sValue = sRest;
if ( ( sRest = strchr ( sRest, ',' ) )!=NULL )
*sRest++ = '\0';
if ( !*sValue )
break;
if ( !pOverride )
{
pOverride = new CSphSEQuery::Override_t;
pOverride->m_sName = chop(sName);
pOverride->m_iType = iType;
m_dOverrides.append ( pOverride );
}
ulonglong uId = strtoull ( sId, NULL, 10 );
CSphSEQuery::Override_t::Value_t tValue;
if ( iType==SPH_ATTR_FLOAT )
tValue.m_fValue = (float)atof(sValue);
else if ( iType==SPH_ATTR_BIGINT )
tValue.m_iValue64 = strtoll ( sValue, NULL, 10 );
else
tValue.m_uValue = (uint32)strtoul ( sValue, NULL, 10 );
pOverride->m_dIds.append ( uId );
pOverride->m_dValues.append ( tValue );
}
if ( !pOverride )
{
snprintf ( m_sParseError, sizeof(m_sParseError), "override: id:value mapping expected" );
SPH_RET(false);
}
SPH_RET(true);
} else
{
snprintf ( m_sParseError, sizeof(m_sParseError), "unknown parameter '%s'", sName );
SPH_RET(false);
}
// !COMMIT handle syntax errors
SPH_RET(true);
}
bool CSphSEQuery::Parse ()
{
SPH_ENTER_METHOD();
SPH_DEBUG ( "query [[ %s ]]", m_sQueryBuffer );
m_bQuery = false;
char * pCur = m_sQueryBuffer;
char * pNext = pCur;
while ( ( pNext = strchr ( pNext, ';' ) )!=NULL )
{
// handle escaped semicolons
if ( pNext>m_sQueryBuffer && pNext[-1]=='\\' && pNext[1]!='\0' )
{
pNext++;
continue;
}
// handle semicolon-separated clauses
*pNext++ = '\0';
if ( !ParseField ( pCur ) )
SPH_RET(false);
pCur = pNext;
}
SPH_DEBUG ( "q [[ %s ]]", m_sQuery );
SPH_RET(true);
}
void CSphSEQuery::SendBytes ( const void * pBytes, int iBytes )
{
SPH_ENTER_METHOD();
if ( m_iBufLeft<iBytes )
{
m_bBufOverrun = true;
SPH_VOID_RET();
}
memcpy ( m_pCur, pBytes, iBytes );
m_pCur += iBytes;
m_iBufLeft -= iBytes;
SPH_VOID_RET();
}
int CSphSEQuery::BuildRequest ( char ** ppBuffer )
{
SPH_ENTER_METHOD();
// calc request length
int iReqSize = 128 + 4*m_iWeights
+ strlen ( m_sSortBy )
+ strlen ( m_sQuery )
+ strlen ( m_sIndex )
+ strlen ( m_sGroupBy )
+ strlen ( m_sGroupSortBy )
+ strlen ( m_sGroupDistinct )
+ strlen ( m_sComment )
+ strlen ( m_sSelect );
if ( m_eRanker==SPH_RANK_EXPR )
iReqSize += 4 + strlen(m_sRankExpr);
for ( int i=0; i<m_iFilters; i++ )
{
const CSphSEFilter & tFilter = m_dFilters[i];
iReqSize += 12 + strlen ( tFilter.m_sAttrName ); // string attr-name; int type; int exclude-flag
switch ( tFilter.m_eType )
{
case SPH_FILTER_VALUES: iReqSize += 4 + 8*tFilter.m_iValues; break;
case SPH_FILTER_RANGE: iReqSize += 16; break;
case SPH_FILTER_FLOATRANGE: iReqSize += 8; break;
}
}
if ( m_bGeoAnchor ) // 1.14+
iReqSize += 16 + strlen ( m_sGeoLatAttr ) + strlen ( m_sGeoLongAttr );
for ( int i=0; i<m_iIndexWeights; i++ ) // 1.15+
iReqSize += 8 + strlen(m_sIndexWeight[i] );
for ( int i=0; i<m_iFieldWeights; i++ ) // 1.18+
iReqSize += 8 + strlen(m_sFieldWeight[i] );
// overrides
iReqSize += 4;
for ( size_t i=0; i<m_dOverrides.elements(); i++ )
{
CSphSEQuery::Override_t * pOverride = m_dOverrides.at(i);
const uint32 uSize = pOverride->m_iType==SPH_ATTR_BIGINT ? 16 : 12; // id64 + value
iReqSize += strlen ( pOverride->m_sName ) + 12 + uSize*pOverride->m_dIds.elements();
}
// select
iReqSize += 4;
m_iBufLeft = 0;
SafeDeleteArray ( m_pBuf );
m_pBuf = new char [ iReqSize ];
if ( !m_pBuf )
SPH_RET(-1);
m_pCur = m_pBuf;
m_iBufLeft = iReqSize;
m_bBufOverrun = false;
(*ppBuffer) = m_pBuf;
// build request
SendWord ( SEARCHD_COMMAND_SEARCH ); // command id
SendWord ( VER_COMMAND_SEARCH ); // command version
SendInt ( iReqSize-8 ); // packet body length
SendInt ( 0 ); // its a client
SendInt ( 1 ); // number of queries
SendInt ( m_iOffset );
SendInt ( m_iLimit );
SendInt ( m_eMode );
SendInt ( m_eRanker ); // 1.16+
if ( m_eRanker==SPH_RANK_EXPR )
SendString ( m_sRankExpr );
SendInt ( m_eSort );
SendString ( m_sSortBy ); // sort attr
SendString ( m_sQuery ); // query
SendInt ( m_iWeights );
for ( int j=0; j<m_iWeights; j++ )
SendInt ( m_pWeights[j] ); // weights
SendString ( m_sIndex ); // indexes
SendInt ( 1 ); // id64 range follows
SendUint64 ( m_iMinID ); // id/ts ranges
SendUint64 ( m_iMaxID );
SendInt ( m_iFilters );
for ( int j=0; j<m_iFilters; j++ )
{
const CSphSEFilter & tFilter = m_dFilters[j];
SendString ( tFilter.m_sAttrName );
SendInt ( tFilter.m_eType );
switch ( tFilter.m_eType )
{
case SPH_FILTER_VALUES:
SendInt ( tFilter.m_iValues );
for ( int k=0; k<tFilter.m_iValues; k++ )
SendUint64 ( tFilter.m_pValues[k] );
break;
case SPH_FILTER_RANGE:
SendUint64 ( tFilter.m_uMinValue );
SendUint64 ( tFilter.m_uMaxValue );
break;
case SPH_FILTER_FLOATRANGE:
SendFloat ( tFilter.m_fMinValue );
SendFloat ( tFilter.m_fMaxValue );
break;
}
SendInt ( tFilter.m_bExclude );
}
SendInt ( m_eGroupFunc );
SendString ( m_sGroupBy );
SendInt ( m_iMaxMatches );
SendString ( m_sGroupSortBy );
SendInt ( m_iCutoff ); // 1.9+
SendInt ( m_iRetryCount ); // 1.10+
SendInt ( m_iRetryDelay );
SendString ( m_sGroupDistinct ); // 1.11+
SendInt ( m_bGeoAnchor ); // 1.14+
if ( m_bGeoAnchor )
{
SendString ( m_sGeoLatAttr );
SendString ( m_sGeoLongAttr );
SendFloat ( m_fGeoLatitude );
SendFloat ( m_fGeoLongitude );
}
SendInt ( m_iIndexWeights ); // 1.15+
for ( int i=0; i<m_iIndexWeights; i++ )
{
SendString ( m_sIndexWeight[i] );
SendInt ( m_iIndexWeight[i] );
}
SendInt ( m_iMaxQueryTime ); // 1.17+
SendInt ( m_iFieldWeights ); // 1.18+
for ( int i=0; i<m_iFieldWeights; i++ )
{
SendString ( m_sFieldWeight[i] );
SendInt ( m_iFieldWeight[i] );
}
SendString ( m_sComment );
// overrides
SendInt ( m_dOverrides.elements() );
for ( size_t i=0; i<m_dOverrides.elements(); i++ )
{
CSphSEQuery::Override_t * pOverride = m_dOverrides.at(i);
SendString ( pOverride->m_sName );
SendDword ( pOverride->m_iType );
SendInt ( pOverride->m_dIds.elements() );
for ( size_t j=0; j<pOverride->m_dIds.elements(); j++ )
{
SendUint64 ( pOverride->m_dIds.at(j) );
if ( pOverride->m_iType==SPH_ATTR_FLOAT )
SendFloat ( pOverride->m_dValues.at(j).m_fValue );
else if ( pOverride->m_iType==SPH_ATTR_BIGINT )
SendUint64 ( pOverride->m_dValues.at(j).m_iValue64 );
else
SendDword ( pOverride->m_dValues.at(j).m_uValue );
}
}
// select
SendString ( m_sSelect );
// detect buffer overruns and underruns, and report internal error
if ( m_bBufOverrun || m_iBufLeft!=0 || m_pCur-m_pBuf!=iReqSize )
SPH_RET(-1);
// all fine
SPH_RET ( iReqSize );
}
//////////////////////////////////////////////////////////////////////////////
// SPHINX HANDLER
//////////////////////////////////////////////////////////////////////////////
#if MYSQL_VERSION_ID<50100
ha_sphinx::ha_sphinx ( TABLE_ARG * table )
: handler ( &sphinx_hton, table )
#else
ha_sphinx::ha_sphinx ( handlerton * hton, TABLE_ARG * table )
: handler ( hton, table )
#endif
, m_pShare ( NULL )
, m_iMatchesTotal ( 0 )
, m_iCurrentPos ( 0 )
, m_pCurrentKey ( NULL )
, m_iCurrentKeyLen ( 0 )
, m_pResponse ( NULL )
, m_pResponseEnd ( NULL )
, m_pCur ( NULL )
, m_bUnpackError ( false )
, m_iFields ( 0 )
, m_dFields ( NULL )
, m_iAttrs ( 0 )
, m_dAttrs ( NULL )
, m_bId64 ( 0 )
, m_dUnboundFields ( NULL )
{
SPH_ENTER_METHOD();
SPH_VOID_RET();
}
ha_sphinx::~ha_sphinx()
{
SafeDeleteArray ( m_dAttrs );
SafeDeleteArray ( m_dUnboundFields );
if ( m_dFields )
{
for (uint32 i=0; i< m_iFields; i++ )
SafeDeleteArray ( m_dFields[i] );
delete [] m_dFields;
}
}
// Used for opening tables. The name will be the name of the file.
// A table is opened when it needs to be opened. For instance
// when a request comes in for a select on the table (tables are not
// open and closed for each request, they are cached).
//
// Called from handler.cc by handler::ha_open(). The server opens all tables by
// calling ha_open() which then calls the handler specific open().
int ha_sphinx::open ( const char * name, int, uint )
{
SPH_ENTER_METHOD();
m_pShare = get_share ( name, table );
if ( !m_pShare )
SPH_RET(1);
thr_lock_data_init ( &m_pShare->m_tLock, &m_tLock, NULL );
thd_set_ha_data ( table->in_use, ht, 0 );
SPH_RET(0);
}
int ha_sphinx::Connect ( const char * sHost, ushort uPort )
{
struct sockaddr_in sin;
#ifndef _WIN32
struct sockaddr_un saun;
#endif
int iDomain = 0;
int iSockaddrSize = 0;
struct sockaddr * pSockaddr = NULL;
in_addr_t ip_addr;
if ( uPort )
{
iDomain = AF_INET;
iSockaddrSize = sizeof(sin);
pSockaddr = (struct sockaddr *) &sin;
memset ( &sin, 0, sizeof(sin) );
sin.sin_family = AF_INET;
sin.sin_port = htons(uPort);
// prepare host address
if ( (int)( ip_addr = inet_addr(sHost) )!=(int)INADDR_NONE )
{
memcpy ( &sin.sin_addr, &ip_addr, sizeof(ip_addr) );
} else
{
int tmp_errno;
bool bError = false;
#if MYSQL_VERSION_ID>=50515
struct addrinfo *hp = NULL;
tmp_errno = getaddrinfo ( sHost, NULL, NULL, &hp );
if ( tmp_errno || !hp || !hp->ai_addr )
{
bError = true;
if ( hp )
freeaddrinfo ( hp );
}
#else
struct hostent tmp_hostent, *hp;
char buff2 [ GETHOSTBYNAME_BUFF_SIZE ];
hp = my_gethostbyname_r ( sHost, &tmp_hostent, buff2, sizeof(buff2), &tmp_errno );
if ( !hp )
{
my_gethostbyname_r_free();
bError = true;
}
#endif
if ( bError )
{
char sError[256];
my_snprintf ( sError, sizeof(sError), "failed to resolve searchd host (name=%s)", sHost );
my_error ( ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0), sError );
SPH_RET(-1);
}
#if MYSQL_VERSION_ID>=50515
struct sockaddr_in *in = (sockaddr_in *)hp->ai_addr;
memcpy ( &sin.sin_addr, &in->sin_addr, Min ( sizeof(sin.sin_addr), sizeof(in->sin_addr) ) );
freeaddrinfo ( hp );
#else
memcpy ( &sin.sin_addr, hp->h_addr, Min ( sizeof(sin.sin_addr), (size_t)hp->h_length ) );
my_gethostbyname_r_free();
#endif
}
} else
{
#ifndef _WIN32
iDomain = AF_UNIX;
iSockaddrSize = sizeof(saun);
pSockaddr = (struct sockaddr *) &saun;
memset ( &saun, 0, sizeof(saun) );
saun.sun_family = AF_UNIX;
strncpy ( saun.sun_path, sHost, sizeof(saun.sun_path)-1 );
#else
my_error ( ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0), "UNIX sockets are not supported on Windows" );
SPH_RET(-1);
#endif
}
char sError[512];
int iSocket = (int) socket ( iDomain, SOCK_STREAM, 0 );
if ( iSocket<0 )
{
my_error ( ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0), "failed to create client socket" );
SPH_RET(-1);
}
if ( connect ( iSocket, pSockaddr, iSockaddrSize )<0 )
{
sphSockClose ( iSocket );
my_snprintf ( sError, sizeof(sError), "failed to connect to searchd (host=%s, errno=%d, port=%d)",
sHost, errno, (int)uPort );
my_error ( ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0), sError );
SPH_RET(-1);
}
return iSocket;
}
int ha_sphinx::ConnectAPI ( const char * sQueryHost, int iQueryPort )
{
SPH_ENTER_METHOD();
const char * sHost = ( sQueryHost && *sQueryHost ) ? sQueryHost : m_pShare->m_sHost;
ushort uPort = iQueryPort ? (ushort)iQueryPort : m_pShare->m_iPort;
int iSocket = Connect ( sHost, uPort );
if ( iSocket<0 )
SPH_RET ( iSocket );
char sError[512];
int version;
if ( ::recv ( iSocket, (char *)&version, sizeof(version), 0 )!=sizeof(version) )
{
sphSockClose ( iSocket );
my_snprintf ( sError, sizeof(sError), "failed to receive searchd version (host=%s, port=%d)",
sHost, (int)uPort );
my_error ( ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0), sError );
SPH_RET(-1);
}
uint uClientVersion = htonl ( SPHINX_SEARCHD_PROTO );
if ( ::send ( iSocket, (char*)&uClientVersion, sizeof(uClientVersion), 0 )!=sizeof(uClientVersion) )
{
sphSockClose ( iSocket );
my_snprintf ( sError, sizeof(sError), "failed to send client version (host=%s, port=%d)",
sHost, (int)uPort );
my_error ( ER_CONNECT_TO_FOREIGN_DATA_SOURCE, MYF(0), sError );
SPH_RET(-1);
}
SPH_RET ( iSocket );
}
// Closes a table. We call the free_share() function to free any resources
// that we have allocated in the "shared" structure.
//
// Called from sql_base.cc, sql_select.cc, and table.cc.
// In sql_select.cc it is only used to close up temporary tables or during
// the process where a temporary table is converted over to being a
// myisam table.
// For sql_base.cc look at close_data_tables().
int ha_sphinx::close()
{
SPH_ENTER_METHOD();
SPH_RET ( free_share ( m_pShare ) );
}
int ha_sphinx::HandleMysqlError ( MYSQL * pConn, int iErrCode )
{
CSphSEThreadTable * pTable = GetTls ();
if ( pTable )
{
strncpy ( pTable->m_tStats.m_sLastMessage, mysql_error ( pConn ), sizeof pTable->m_tStats.m_sLastMessage - 1 );
pTable->m_tStats.m_sLastMessage[sizeof pTable->m_tStats.m_sLastMessage - 1] = '\0';
pTable->m_tStats.m_bLastError = true;
}
mysql_close ( pConn );
my_error ( iErrCode, MYF(0), pTable->m_tStats.m_sLastMessage );
return -1;
}
int ha_sphinx::extra ( enum ha_extra_function op )
{
CSphSEThreadTable * pTable = GetTls();
if ( pTable )
{
if ( op==HA_EXTRA_WRITE_CAN_REPLACE )
pTable->m_bReplace = true;
else if ( op==HA_EXTRA_WRITE_CANNOT_REPLACE )
pTable->m_bReplace = false;
}
return 0;
}
int ha_sphinx::write_row ( const byte * )
{
SPH_ENTER_METHOD();
if ( !m_pShare || !m_pShare->m_bSphinxQL )
SPH_RET ( HA_ERR_WRONG_COMMAND );
// SphinxQL inserts only, pretty much similar to abandoned federated
char sQueryBuf[1024];
char sValueBuf[1024];
String sQuery ( sQueryBuf, sizeof(sQueryBuf), &my_charset_bin );
String sValue ( sValueBuf, sizeof(sQueryBuf), &my_charset_bin );
const char *query;
sQuery.length ( 0 );
sValue.length ( 0 );
CSphSEThreadTable * pTable = GetTls ();
query= pTable && pTable->m_bReplace ? "REPLACE INTO " : "INSERT INTO ";
sQuery.append (query, strlen(query));
sQuery.append ( m_pShare->m_sIndex, strlen(m_pShare->m_sIndex ));
sQuery.append (STRING_WITH_LEN(" (" ));
for ( Field ** ppField = table->field; *ppField; ppField++ )
{
sQuery.append ( (*ppField)->field_name.str,
strlen((*ppField)->field_name.str));
if ( ppField[1] )
sQuery.append (STRING_WITH_LEN(", "));
}
sQuery.append (STRING_WITH_LEN( ") VALUES (" ));
for ( Field ** ppField = table->field; *ppField; ppField++ )
{
if ( (*ppField)->is_null() )
{
sQuery.append (STRING_WITH_LEN( "''" ));
} else
{
THD *thd= ha_thd();
if ( (*ppField)->type()==MYSQL_TYPE_TIMESTAMP )
{
Item_field * pWrap = new (thd->mem_root) Item_field(thd, *ppField); // autofreed by query arena, I assume
Item_func_unix_timestamp * pConv = new (thd->mem_root) Item_func_unix_timestamp(thd, pWrap);
pConv->quick_fix_field();
unsigned int uTs = (unsigned int) pConv->val_int();
uint len= my_snprintf ( sValueBuf, sizeof(sValueBuf), "'%u'", uTs );
sQuery.append ( sValueBuf, len );
} else
{
(*ppField)->val_str ( &sValue );
sQuery.append ( '\'' );
sValue.print ( &sQuery );
sQuery.append ( '\'' );
sValue.length(0);
}
}
if ( ppField[1] )
sQuery.append (STRING_WITH_LEN(", "));
}
sQuery.append ( ')' );
// FIXME? pretty inefficient to reconnect every time under high load,
// but this was intentionally written for a low load scenario..
MYSQL * pConn = mysql_init ( NULL );
if ( !pConn )
SPH_RET ( ER_OUT_OF_RESOURCES );
unsigned int uTimeout = 1;
mysql_options ( pConn, MYSQL_OPT_CONNECT_TIMEOUT, (const char*)&uTimeout );
my_bool my_true= 1;
mysql_options(pConn, MYSQL_OPT_USE_THREAD_SPECIFIC_MEMORY, (char*) &my_true);
if ( !mysql_real_connect ( pConn, m_pShare->m_sHost, "root", "", "", m_pShare->m_iPort, m_pShare->m_sSocket, 0 ) )
SPH_RET ( HandleMysqlError ( pConn, ER_CONNECT_TO_FOREIGN_DATA_SOURCE ) );
if ( mysql_real_query ( pConn, sQuery.ptr(), sQuery.length() ) )
SPH_RET ( HandleMysqlError ( pConn, ER_QUERY_ON_FOREIGN_DATA_SOURCE ) );
// all ok!
mysql_close ( pConn );
SPH_RET(0);
}
static inline bool IsIntegerFieldType ( enum_field_types eType )
{
return eType==MYSQL_TYPE_LONG || eType==MYSQL_TYPE_LONGLONG;
}
static inline bool IsIDField ( Field * pField )
{
enum_field_types eType = pField->type();
if ( eType==MYSQL_TYPE_LONGLONG )
return true;
if ( eType==MYSQL_TYPE_LONG && ((Field_num*)pField)->unsigned_flag )
return true;
return false;
}
int ha_sphinx::delete_row ( const byte * )
{
SPH_ENTER_METHOD();
if ( !m_pShare || !m_pShare->m_bSphinxQL )
SPH_RET ( HA_ERR_WRONG_COMMAND );
char sQueryBuf[1024];
String sQuery ( sQueryBuf, sizeof(sQueryBuf), &my_charset_bin );
sQuery.length ( 0 );
sQuery.append (STRING_WITH_LEN( "DELETE FROM " ));
sQuery.append ( m_pShare->m_sIndex, strlen(m_pShare->m_sIndex));
sQuery.append (STRING_WITH_LEN( " WHERE id=" ));
char sValue[32];
uint length= my_snprintf ( sValue, sizeof(sValue), "%lld",
table->field[0]->val_int() );
sQuery.append ( sValue, length );
// FIXME? pretty inefficient to reconnect every time under high load,
// but this was intentionally written for a low load scenario..
MYSQL * pConn = mysql_init ( NULL );
if ( !pConn )
SPH_RET ( ER_OUT_OF_RESOURCES );
unsigned int uTimeout = 1;
mysql_options ( pConn, MYSQL_OPT_CONNECT_TIMEOUT, (const char*)&uTimeout );
my_bool my_true= 1;
mysql_options(pConn, MYSQL_OPT_USE_THREAD_SPECIFIC_MEMORY, (char*) &my_true);
if ( !mysql_real_connect ( pConn, m_pShare->m_sHost, "root", "", "", m_pShare->m_iPort, m_pShare->m_sSocket, 0 ) )
SPH_RET ( HandleMysqlError ( pConn, ER_CONNECT_TO_FOREIGN_DATA_SOURCE ) );
if ( mysql_real_query ( pConn, sQuery.ptr(), sQuery.length() ) )
SPH_RET ( HandleMysqlError ( pConn, ER_QUERY_ON_FOREIGN_DATA_SOURCE ) );
// all ok!
mysql_close ( pConn );
SPH_RET(0);
}
int ha_sphinx::update_row ( const byte *, const byte * )
{
SPH_ENTER_METHOD();
SPH_RET ( HA_ERR_WRONG_COMMAND );
}
// keynr is key (index) number
// sorted is 1 if result MUST be sorted according to index
int ha_sphinx::index_init ( uint keynr, bool )
{
SPH_ENTER_METHOD();
active_index = keynr;
CSphSEThreadTable * pTable = GetTls();
if ( pTable )
pTable->m_bCondDone = false;
SPH_RET(0);
}
int ha_sphinx::index_end()
{
SPH_ENTER_METHOD();
SPH_RET(0);
}
bool ha_sphinx::CheckResponcePtr ( int iLen )
{
if ( m_pCur+iLen>m_pResponseEnd )
{
m_pCur = m_pResponseEnd;
m_bUnpackError = true;
return false;
}
return true;
}
uint32 ha_sphinx::UnpackDword ()
{
if ( !CheckResponcePtr ( sizeof(uint32) ) ) // NOLINT
{
return 0;
}
uint32 uRes = ntohl ( sphUnalignedRead ( *(uint32*)m_pCur ) );
m_pCur += sizeof(uint32); // NOLINT
return uRes;
}
char * ha_sphinx::UnpackString ()
{
uint32 iLen = UnpackDword ();
if ( !iLen )
return NULL;
if ( !CheckResponcePtr ( iLen ) )
{
return NULL;
}
char * sRes = new char [ 1+iLen ];
memcpy ( sRes, m_pCur, iLen );
sRes[iLen] = '\0';
m_pCur += iLen;
return sRes;
}
bool ha_sphinx::UnpackSchema ()
{
SPH_ENTER_METHOD();
// cleanup
if ( m_dFields )
for ( int i=0; i<(int)m_iFields; i++ )
SafeDeleteArray ( m_dFields[i] );
SafeDeleteArray ( m_dFields );
// unpack network packet
uint32 uStatus = UnpackDword ();
char * sMessage = NULL;
if ( uStatus!=SEARCHD_OK )
{
sMessage = UnpackString ();
CSphSEThreadTable * pTable = GetTls ();
if ( pTable )
{
strncpy ( pTable->m_tStats.m_sLastMessage, sMessage, sizeof pTable->m_tStats.m_sLastMessage - 1 );
pTable->m_tStats.m_sLastMessage[sizeof pTable->m_tStats.m_sLastMessage - 1] = '\0';
pTable->m_tStats.m_bLastError = ( uStatus==SEARCHD_ERROR );
}
if ( uStatus==SEARCHD_ERROR )
{
char sError[1024];
my_snprintf ( sError, sizeof(sError), "searchd error: %s", sMessage );
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), sError );
SafeDeleteArray ( sMessage );
SPH_RET ( false );
}
}
m_iFields = UnpackDword ();
m_dFields = new char * [ m_iFields ];
if ( !m_dFields )
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: UnpackSchema() failed (fields alloc error)" );
SPH_RET(false);
}
for ( uint32 i=0; i<m_iFields; i++ )
m_dFields[i] = UnpackString ();
SafeDeleteArray ( m_dAttrs );
m_iAttrs = UnpackDword ();
m_dAttrs = new CSphSEAttr [ m_iAttrs ];
if ( !m_dAttrs )
{
for ( int i=0; i<(int)m_iFields; i++ )
SafeDeleteArray ( m_dFields[i] );
SafeDeleteArray ( m_dFields );
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: UnpackSchema() failed (attrs alloc error)" );
SPH_RET(false);
}
for ( uint32 i=0; i<m_iAttrs; i++ )
{
m_dAttrs[i].m_sName = UnpackString ();
m_dAttrs[i].m_uType = UnpackDword ();
if ( m_bUnpackError ) // m_sName may be null
break;
m_dAttrs[i].m_iField = -1;
for ( int j=SPHINXSE_SYSTEM_COLUMNS; j<m_pShare->m_iTableFields; j++ )
{
const char * sTableField = m_pShare->m_sTableField[j];
const char * sAttrField = m_dAttrs[i].m_sName;
if ( m_dAttrs[i].m_sName[0]=='@' )
{
const char * sAtPrefix = "_sph_";
if ( strncmp ( sTableField, sAtPrefix, strlen(sAtPrefix) ) )
continue;
sTableField += strlen(sAtPrefix);
sAttrField++;
}
if ( !strcasecmp ( sAttrField, sTableField ) )
{
// we're almost good, but
// let's enforce that timestamp columns can only receive timestamp attributes
if ( m_pShare->m_eTableFieldType[j]!=MYSQL_TYPE_TIMESTAMP || m_dAttrs[i].m_uType==SPH_ATTR_TIMESTAMP )
m_dAttrs[i].m_iField = j;
break;
}
}
}
m_iMatchesTotal = UnpackDword ();
m_bId64 = UnpackDword ();
if ( m_bId64 && m_pShare->m_eTableFieldType[0]!=MYSQL_TYPE_LONGLONG )
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: 1st column must be bigint to accept 64-bit DOCIDs" );
SPH_RET(false);
}
// network packet unpacked; build unbound fields map
SafeDeleteArray ( m_dUnboundFields );
m_dUnboundFields = new int [ m_pShare->m_iTableFields ];
for ( int i=0; i<m_pShare->m_iTableFields; i++ )
{
if ( i<SPHINXSE_SYSTEM_COLUMNS )
m_dUnboundFields[i] = SPH_ATTR_NONE;
else if ( m_pShare->m_eTableFieldType[i]==MYSQL_TYPE_TIMESTAMP )
m_dUnboundFields[i] = SPH_ATTR_TIMESTAMP;
else
m_dUnboundFields[i] = SPH_ATTR_INTEGER;
}
for ( uint32 i=0; i<m_iAttrs; i++ )
if ( m_dAttrs[i].m_iField>=0 )
m_dUnboundFields [ m_dAttrs[i].m_iField ] = SPH_ATTR_NONE;
if ( m_bUnpackError )
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: UnpackSchema() failed (unpack error)" );
SPH_RET ( !m_bUnpackError );
}
bool ha_sphinx::UnpackStats ( CSphSEStats * pStats )
{
assert ( pStats );
char * pCurSave = m_pCur;
for ( uint m=0; m<m_iMatchesTotal && m_pCur<m_pResponseEnd-sizeof(uint32); m++ ) // NOLINT
{
m_pCur += m_bId64 ? 12 : 8; // skip id+weight
for ( uint32 i=0; i<m_iAttrs && m_pCur<m_pResponseEnd-sizeof(uint32); i++ ) // NOLINT
{
if ( m_dAttrs[i].m_uType==SPH_ATTR_UINT32SET || m_dAttrs[i].m_uType==SPH_ATTR_UINT64SET )
{
// skip MVA list
uint32 uCount = UnpackDword ();
m_pCur += uCount*4;
} else if ( m_dAttrs[i].m_uType==SPH_ATTR_STRING )
{
uint32 iLen = UnpackDword();
m_pCur += iLen;
} else // skip normal value
m_pCur += m_dAttrs[i].m_uType==SPH_ATTR_BIGINT ? 8 : 4;
}
}
pStats->m_iMatchesTotal = UnpackDword ();
pStats->m_iMatchesFound = UnpackDword ();
pStats->m_iQueryMsec = UnpackDword ();
pStats->m_iWords = UnpackDword ();
if ( m_bUnpackError )
return false;
if ( pStats->m_iWords<0 || pStats->m_iWords>=SPHINXSE_MAX_KEYWORDSTATS )
return false;
SafeDeleteArray ( pStats->m_dWords );
pStats->m_dWords = new CSphSEWordStats [ pStats->m_iWords ];
if ( !pStats->m_dWords )
return false;
for ( int i=0; i<pStats->m_iWords; i++ )
{
CSphSEWordStats & tWord = pStats->m_dWords[i];
tWord.m_sWord = UnpackString ();
tWord.m_iDocs = UnpackDword ();
tWord.m_iHits = UnpackDword ();
}
if ( m_bUnpackError )
return false;
m_pCur = pCurSave;
return true;
}
/// condition pushdown implementation, to properly intercept WHERE clauses on my columns
#if MYSQL_VERSION_ID<50610
const COND * ha_sphinx::cond_push ( const COND * cond )
#else
const Item * ha_sphinx::cond_push ( const Item *cond )
#endif
{
// catch the simplest case: query_column="some text"
for ( ;; )
{
if ( cond->type()!=Item::FUNC_ITEM )
break;
Item_func * condf = (Item_func *)cond;
if ( condf->functype()!=Item_func::EQ_FUNC || condf->argument_count()!=2 )
break;
// get my tls
CSphSEThreadTable * pTable = GetTls ();
if ( !pTable )
break;
Item ** args = condf->arguments();
if ( !m_pShare->m_bSphinxQL )
{
// on non-QL tables, intercept query=value condition for SELECT
if (!( args[0]->type()==Item::FIELD_ITEM &&
args[1]->is_of_type(Item::CONST_ITEM,
STRING_RESULT)))
break;
Item_field * pField = (Item_field *) args[0];
if ( pField->field->field_index!=2 ) // FIXME! magic key index
break;
// copy the query, and let know that we intercepted this condition
String *pString= args[1]->val_str(NULL);
pTable->m_bQuery = true;
strncpy ( pTable->m_sQuery, pString->c_ptr(), sizeof(pTable->m_sQuery) );
pTable->m_sQuery[sizeof(pTable->m_sQuery)-1] = '\0';
pTable->m_pQueryCharset = pString->charset();
} else
{
if (!( args[0]->type()==Item::FIELD_ITEM &&
args[1]->is_of_type(Item::CONST_ITEM,
INT_RESULT)))
break;
// on QL tables, intercept id=value condition for DELETE
Item_field * pField = (Item_field *) args[0];
if ( pField->field->field_index!=0 ) // FIXME! magic key index
break;
Item_int * pVal = (Item_int *) args[1];
pTable->m_iCondId = pVal->val_int();
pTable->m_bCondId = true;
}
// we intercepted this condition
return NULL;
}
// don't change anything
return cond;
}
/// condition popup
void ha_sphinx::cond_pop ()
{
CSphSEThreadTable * pTable = GetTls ();
if ( pTable )
pTable->m_bQuery = false;
}
/// get TLS (maybe allocate it, too)
CSphSEThreadTable * ha_sphinx::GetTls()
{
SPH_ENTER_METHOD()
// where do we store that pointer in today's version?
CSphTLS * pTls = (CSphTLS*) thd_get_ha_data ( table->in_use, ht );
CSphSEThreadTable * pTable = NULL;
// allocate if needed
if ( !pTls )
{
pTls = new CSphTLS ( this );
thd_set_ha_data(table->in_use, ht, pTls);
}
pTable = pTls->m_pHeadTable;
while ( pTable && pTable->m_pHandler!=this )
pTable = pTable->m_pTableNext;
if ( !pTable )
{
pTable = new CSphSEThreadTable ( this );
pTable->m_pTableNext = pTls->m_pHeadTable;
pTls->m_pHeadTable = pTable;
}
// errors will be handled by caller
return pTable;
}
// Positions an index cursor to the index specified in the handle. Fetches the
// row if available. If the key value is null, begin at the first key of the
// index.
int ha_sphinx::index_read ( byte * buf, const byte * key, uint key_len, enum ha_rkey_function )
{
SPH_ENTER_METHOD();
char sError[256];
// set new data for thd->ha_data, it is used in show_status
CSphSEThreadTable * pTable = GetTls();
if ( !pTable )
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: TLS malloc() failed" );
SPH_RET ( HA_ERR_END_OF_FILE );
}
pTable->m_tStats.Reset ();
// sphinxql table, just return the key once
if ( m_pShare->m_bSphinxQL )
{
// over and out
if ( pTable->m_bCondDone )
SPH_RET ( HA_ERR_END_OF_FILE );
// return a value from pushdown, if any
if ( pTable->m_bCondId )
{
table->field[0]->store ( pTable->m_iCondId, 1 );
pTable->m_bCondDone = true;
SPH_RET(0);
}
// return a value from key
longlong iRef = 0;
if ( key_len==4 )
iRef = uint4korr ( key );
else if ( key_len==8 )
iRef = uint8korr ( key );
else
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: unexpected key length" );
SPH_RET ( HA_ERR_END_OF_FILE );
}
table->field[0]->store ( iRef, 1 );
pTable->m_bCondDone = true;
SPH_RET(0);
}
// parse query
if ( pTable->m_bQuery )
{
// we have a query from condition pushdown
m_pCurrentKey = (const byte *) pTable->m_sQuery;
m_iCurrentKeyLen = strlen(pTable->m_sQuery);
} else
{
// just use the key (might be truncated)
m_pCurrentKey = key+HA_KEY_BLOB_LENGTH;
m_iCurrentKeyLen = uint2korr(key); // or maybe key_len?
pTable->m_pQueryCharset = m_pShare ? m_pShare->m_pTableQueryCharset : NULL;
}
CSphSEQuery q ( (const char*)m_pCurrentKey, m_iCurrentKeyLen, m_pShare->m_sIndex );
if ( !q.Parse () )
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), q.m_sParseError );
SPH_RET ( HA_ERR_END_OF_FILE );
}
// do connect
int iSocket = ConnectAPI ( q.m_sHost, q.m_iPort );
if ( iSocket<0 )
SPH_RET ( HA_ERR_END_OF_FILE );
// my buffer
char * pBuffer; // will be free by CSphSEQuery dtor; do NOT free manually
int iReqLen = q.BuildRequest ( &pBuffer );
if ( iReqLen<=0 )
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: q.BuildRequest() failed" );
SPH_RET ( HA_ERR_END_OF_FILE );
}
// send request
::send ( iSocket, pBuffer, iReqLen, 0 );
// receive reply
char sHeader[8];
int iGot = ::recv ( iSocket, sHeader, sizeof(sHeader), RECV_FLAGS );
if ( iGot!=sizeof(sHeader) )
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "failed to receive response header (searchd went away?)" );
SPH_RET ( HA_ERR_END_OF_FILE );
}
short int uRespStatus = ntohs ( sphUnalignedRead ( *(short int*)( &sHeader[0] ) ) );
short int uRespVersion = ntohs ( sphUnalignedRead ( *(short int*)( &sHeader[2] ) ) );
uint uRespLength = ntohl ( sphUnalignedRead ( *(uint *)( &sHeader[4] ) ) );
SPH_DEBUG ( "got response header (status=%d version=%d length=%d)",
uRespStatus, uRespVersion, uRespLength );
SafeDeleteArray ( m_pResponse );
if ( uRespLength<=SPHINXSE_MAX_ALLOC )
m_pResponse = new char [ uRespLength+1 ];
if ( !m_pResponse )
{
my_snprintf ( sError, sizeof(sError), "bad searchd response length (length=%u)", uRespLength );
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), sError );
SPH_RET ( HA_ERR_END_OF_FILE );
}
int iRecvLength = 0;
while ( iRecvLength<(int)uRespLength )
{
int iRecv = ::recv ( iSocket, m_pResponse+iRecvLength, uRespLength-iRecvLength, RECV_FLAGS );
if ( iRecv<0 )
break;
iRecvLength += iRecv;
}
::closesocket ( iSocket );
iSocket = -1;
if ( iRecvLength!=(int)uRespLength )
{
my_snprintf ( sError, sizeof(sError), "net read error (expected=%d, got=%d)", uRespLength, iRecvLength );
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), sError );
SPH_RET ( HA_ERR_END_OF_FILE );
}
// we'll have a message, at least
pTable->m_bStats = true;
// parse reply
m_iCurrentPos = 0;
m_pCur = m_pResponse;
m_pResponseEnd = m_pResponse + uRespLength;
m_bUnpackError = false;
if ( uRespStatus!=SEARCHD_OK )
{
char * sMessage = UnpackString ();
if ( !sMessage )
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "no valid response from searchd (status=%d, resplen=%d)",
uRespStatus, uRespLength );
SPH_RET ( HA_ERR_END_OF_FILE );
}
strncpy ( pTable->m_tStats.m_sLastMessage, sMessage, sizeof pTable->m_tStats.m_sLastMessage - 1 );
pTable->m_tStats.m_sLastMessage[sizeof pTable->m_tStats.m_sLastMessage - 1] = '\0';
SafeDeleteArray ( sMessage );
if ( uRespStatus!=SEARCHD_WARNING )
{
my_snprintf ( sError, sizeof(sError), "searchd error: %s", pTable->m_tStats.m_sLastMessage );
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), sError );
pTable->m_tStats.m_bLastError = true;
SPH_RET ( HA_ERR_END_OF_FILE );
}
}
if ( !UnpackSchema () )
SPH_RET ( HA_ERR_END_OF_FILE );
if ( !UnpackStats ( &pTable->m_tStats ) )
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: UnpackStats() failed" );
SPH_RET ( HA_ERR_END_OF_FILE );
}
SPH_RET ( get_rec ( buf, key, key_len ) );
}
// Positions an index cursor to the index specified in key. Fetches the
// row if any. This is only used to read whole keys.
int ha_sphinx::index_read_idx ( byte *, uint, const byte *, uint, enum ha_rkey_function )
{
SPH_ENTER_METHOD();
SPH_RET ( HA_ERR_WRONG_COMMAND );
}
// Used to read forward through the index.
int ha_sphinx::index_next ( byte * buf )
{
SPH_ENTER_METHOD();
SPH_RET ( get_rec ( buf, m_pCurrentKey, m_iCurrentKeyLen ) );
}
int ha_sphinx::index_next_same ( byte * buf, const byte * key, uint keylen )
{
SPH_ENTER_METHOD();
SPH_RET ( get_rec ( buf, key, keylen ) );
}
int ha_sphinx::get_rec ( byte * buf, const byte *, uint )
{
SPH_ENTER_METHOD();
if ( m_iCurrentPos>=m_iMatchesTotal )
{
SafeDeleteArray ( m_pResponse );
SPH_RET ( HA_ERR_END_OF_FILE );
}
#if MYSQL_VERSION_ID>50100
MY_BITMAP * org_bitmap = dbug_tmp_use_all_columns ( table, &table->write_set );
#endif
Field ** field = table->field;
// unpack and return the match
longlong uMatchID = UnpackDword ();
if ( m_bId64 )
uMatchID = ( uMatchID<<32 ) + UnpackDword();
uint32 uMatchWeight = UnpackDword ();
field[0]->store ( uMatchID, 1 );
field[1]->store ( uMatchWeight, 1 );
field[2]->store ( (const char*)m_pCurrentKey, m_iCurrentKeyLen, &my_charset_bin );
for ( uint32 i=0; i<m_iAttrs; i++ )
{
longlong iValue64 = 0;
uint32 uValue = UnpackDword ();
if ( m_dAttrs[i].m_uType==SPH_ATTR_BIGINT )
iValue64 = ( (longlong)uValue<<32 ) | UnpackDword();
if ( m_dAttrs[i].m_iField<0 )
{
// skip MVA or String
if ( m_dAttrs[i].m_uType==SPH_ATTR_UINT32SET || m_dAttrs[i].m_uType==SPH_ATTR_UINT64SET )
{
for ( ; uValue>0 && !m_bUnpackError; uValue-- )
UnpackDword();
} else if ( m_dAttrs[i].m_uType==SPH_ATTR_STRING && CheckResponcePtr ( uValue ) )
{
m_pCur += uValue;
}
continue;
}
Field * af = field [ m_dAttrs[i].m_iField ];
switch ( m_dAttrs[i].m_uType )
{
case SPH_ATTR_INTEGER:
case SPH_ATTR_ORDINAL:
case SPH_ATTR_BOOL:
af->store ( uValue, 1 );
break;
case SPH_ATTR_FLOAT:
af->store ( sphDW2F(uValue) );
break;
case SPH_ATTR_TIMESTAMP:
if ( af->type()==MYSQL_TYPE_TIMESTAMP )
longstore ( af->ptr, uValue ); // because store() does not accept timestamps
else
af->store ( uValue, 1 );
break;
case SPH_ATTR_BIGINT:
af->store ( iValue64, 0 );
break;
case SPH_ATTR_STRING:
if ( !uValue )
af->store ( "", 0, &my_charset_bin );
else if ( CheckResponcePtr ( uValue ) )
{
af->store ( m_pCur, uValue, &my_charset_bin );
m_pCur += uValue;
}
break;
case SPH_ATTR_UINT64SET:
case SPH_ATTR_UINT32SET :
if ( uValue<=0 )
{
// shortcut, empty MVA set
af->store ( "", 0, &my_charset_bin );
} else
{
// convert MVA set to comma-separated string
char sBuf[1024]; // FIXME! magic size
char * pCur = sBuf;
if ( m_dAttrs[i].m_uType==SPH_ATTR_UINT32SET )
{
for ( ; uValue>0 && !m_bUnpackError; uValue-- )
{
uint32 uEntry = UnpackDword ();
if ( pCur < sBuf+sizeof(sBuf)-16 ) // 10 chars per 32bit value plus some safety bytes
{
snprintf ( pCur, sBuf+sizeof(sBuf)-pCur, "%u", uEntry );
while ( *pCur ) pCur++;
if ( uValue>1 )
*pCur++ = ','; // non-trailing commas
}
}
} else
{
for ( ; uValue>0 && !m_bUnpackError; uValue-=2 )
{
uint32 uEntryLo = UnpackDword ();
uint32 uEntryHi = UnpackDword();
if ( pCur < sBuf+sizeof(sBuf)-24 ) // 20 chars per 64bit value plus some safety bytes
{
snprintf ( pCur, sBuf+sizeof(sBuf)-pCur, "%u%u", uEntryHi, uEntryLo );
while ( *pCur ) pCur++;
if ( uValue>2 )
*pCur++ = ','; // non-trailing commas
}
}
}
af->store ( sBuf, uint(pCur-sBuf), &my_charset_bin );
}
break;
default:
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: unhandled attr type" );
SafeDeleteArray ( m_pResponse );
SPH_RET ( HA_ERR_END_OF_FILE );
}
}
if ( m_bUnpackError )
{
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0), "INTERNAL ERROR: response unpacker failed" );
SafeDeleteArray ( m_pResponse );
SPH_RET ( HA_ERR_END_OF_FILE );
}
// zero out unmapped fields
for ( int i=SPHINXSE_SYSTEM_COLUMNS; i<(int)table->s->fields; i++ )
if ( m_dUnboundFields[i]!=SPH_ATTR_NONE )
switch ( m_dUnboundFields[i] )
{
case SPH_ATTR_INTEGER: table->field[i]->store ( 0, 1 ); break;
case SPH_ATTR_TIMESTAMP: longstore ( table->field[i]->ptr, 0 ); break;
default:
my_error ( ER_QUERY_ON_FOREIGN_DATA_SOURCE, MYF(0),
"INTERNAL ERROR: unhandled unbound field type %d", m_dUnboundFields[i] );
SafeDeleteArray ( m_pResponse );
SPH_RET ( HA_ERR_END_OF_FILE );
}
memset ( buf, 0, table->s->null_bytes );
m_iCurrentPos++;
#if MYSQL_VERSION_ID > 50100
dbug_tmp_restore_column_map ( &table->write_set, org_bitmap );
#endif
SPH_RET(0);
}
// Used to read backwards through the index.
int ha_sphinx::index_prev ( byte * )
{
SPH_ENTER_METHOD();
SPH_RET ( HA_ERR_WRONG_COMMAND );
}
// index_first() asks for the first key in the index.
//
// Called from opt_range.cc, opt_sum.cc, sql_handler.cc,
// and sql_select.cc.
int ha_sphinx::index_first ( byte * )
{
SPH_ENTER_METHOD();
SPH_RET ( HA_ERR_END_OF_FILE );
}
// index_last() asks for the last key in the index.
//
// Called from opt_range.cc, opt_sum.cc, sql_handler.cc,
// and sql_select.cc.
int ha_sphinx::index_last ( byte * )
{
SPH_ENTER_METHOD();
SPH_RET ( HA_ERR_WRONG_COMMAND );
}
int ha_sphinx::rnd_init ( bool )
{
SPH_ENTER_METHOD();
SPH_RET(0);
}
int ha_sphinx::rnd_end()
{
SPH_ENTER_METHOD();
SPH_RET(0);
}
int ha_sphinx::rnd_next ( byte * )
{
SPH_ENTER_METHOD();
SPH_RET ( HA_ERR_END_OF_FILE );
}
void ha_sphinx::position ( const byte * )
{
SPH_ENTER_METHOD();
SPH_VOID_RET();
}
// This is like rnd_next, but you are given a position to use
// to determine the row. The position will be of the type that you stored in
// ref. You can use ha_get_ptr(pos,ref_length) to retrieve whatever key
// or position you saved when position() was called.
// Called from filesort.cc records.cc sql_insert.cc sql_select.cc sql_update.cc.
int ha_sphinx::rnd_pos ( byte *, byte * )
{
SPH_ENTER_METHOD();
SPH_RET ( HA_ERR_WRONG_COMMAND );
}
#if MYSQL_VERSION_ID>=50030
int ha_sphinx::info ( uint )
#else
void ha_sphinx::info ( uint )
#endif
{
SPH_ENTER_METHOD();
if ( table->s->keys>0 )
table->key_info[0].rec_per_key[0] = 1;
#if MYSQL_VERSION_ID>50100
stats.records = 20;
#else
records = 20;
#endif
#if MYSQL_VERSION_ID>=50030
SPH_RET(0);
#else
SPH_VOID_RET();
#endif
}
int ha_sphinx::reset ()
{
SPH_ENTER_METHOD();
CSphSEThreadTable * pTable = GetTls ();
if ( pTable )
pTable->m_bQuery = false;
SPH_RET(0);
}
int ha_sphinx::delete_all_rows()
{
SPH_ENTER_METHOD();
SPH_RET ( HA_ERR_WRONG_COMMAND );
}
// First you should go read the section "locking functions for mysql" in
// lock.cc to understand this.
// This create a lock on the table. If you are implementing a storage engine
// that can handle transacations look at ha_berkely.cc to see how you will
// want to go about doing this. Otherwise you should consider calling flock()
// here.
//
// Called from lock.cc by lock_external() and unlock_external(). Also called
// from sql_table.cc by copy_data_between_tables().
int ha_sphinx::external_lock ( THD *, int )
{
SPH_ENTER_METHOD();
SPH_RET(0);
}
THR_LOCK_DATA ** ha_sphinx::store_lock ( THD *, THR_LOCK_DATA ** to,
enum thr_lock_type lock_type )
{
SPH_ENTER_METHOD();
if ( lock_type!=TL_IGNORE && m_tLock.type==TL_UNLOCK )
m_tLock.type = lock_type;
*to++ = &m_tLock;
SPH_RET(to);
}
int ha_sphinx::delete_table ( const char * )
{
SPH_ENTER_METHOD();
SPH_RET(0);
}
// Renames a table from one name to another from alter table call.
//
// If you do not implement this, the default rename_table() is called from
// handler.cc and it will delete all files with the file extensions returned
// by bas_ext().
//
// Called from sql_table.cc by mysql_rename_table().
int ha_sphinx::rename_table ( const char *, const char * )
{
SPH_ENTER_METHOD();
SPH_RET(0);
}
// Given a starting key, and an ending key estimate the number of rows that
// will exist between the two. end_key may be empty which in case determine
// if start_key matches any rows.
//
// Called from opt_range.cc by check_quick_keys().
ha_rows ha_sphinx::records_in_range ( uint, const key_range *, const key_range *, page_range *)
{
SPH_ENTER_METHOD();
SPH_RET(3); // low number to force index usage
}
#if MYSQL_VERSION_ID < 50610
#define user_defined_key_parts key_parts
#endif
// create() is called to create a database. The variable name will have the name
// of the table. When create() is called you do not need to worry about opening
// the table. Also, the FRM file will have already been created so adjusting
// create_info will not do you any good. You can overwrite the frm file at this
// point if you wish to change the table definition, but there are no methods
// currently provided for doing that.
//
// Called from handle.cc by ha_create_table().
int ha_sphinx::create ( const char * name, TABLE * table_arg, HA_CREATE_INFO * )
{
SPH_ENTER_METHOD();
char sError[256];
CSphSEShare tInfo;
if ( !ParseUrl ( &tInfo, table_arg, true ) )
SPH_RET(-1);
// check SphinxAPI table
for ( ; !tInfo.m_bSphinxQL; )
{
// check system fields (count and types)
if ( table_arg->s->fields<SPHINXSE_SYSTEM_COLUMNS )
{
my_snprintf ( sError, sizeof(sError), "%s: there MUST be at least %d columns",
name, SPHINXSE_SYSTEM_COLUMNS );
break;
}
if ( !IsIDField ( table_arg->field[0] ) )
{
my_snprintf ( sError, sizeof(sError), "%s: 1st column (docid) MUST be unsigned integer or bigint", name );
break;
}
if ( !IsIntegerFieldType ( table_arg->field[1]->type() ) )
{
my_snprintf ( sError, sizeof(sError), "%s: 2nd column (weight) MUST be integer or bigint", name );
break;
}
enum_field_types f2 = table_arg->field[2]->type();
if ( f2!=MYSQL_TYPE_VARCHAR
&& f2!=MYSQL_TYPE_BLOB && f2!=MYSQL_TYPE_MEDIUM_BLOB && f2!=MYSQL_TYPE_LONG_BLOB && f2!=MYSQL_TYPE_TINY_BLOB )
{
my_snprintf ( sError, sizeof(sError), "%s: 3rd column (search query) MUST be varchar or text", name );
break;
}
// check attributes
int i;
for ( i=3; i<(int)table_arg->s->fields; i++ )
{
enum_field_types eType = table_arg->field[i]->type();
if ( eType!=MYSQL_TYPE_TIMESTAMP && !IsIntegerFieldType(eType) && eType!=MYSQL_TYPE_VARCHAR && eType!=MYSQL_TYPE_FLOAT )
{
my_snprintf ( sError, sizeof(sError), "%s: %dth column (attribute %s) MUST be integer, bigint, timestamp, varchar, or float",
name, i+1, table_arg->field[i]->field_name.str );
break;
}
}
if ( i!=(int)table_arg->s->fields )
break;
// check index
if (
table_arg->s->keys!=1 ||
table_arg->key_info[0].user_defined_key_parts!=1 ||
strcasecmp ( table_arg->key_info[0].key_part[0].field->field_name.str, table_arg->field[2]->field_name.str ) )
{
my_snprintf ( sError, sizeof(sError), "%s: there must be an index on '%s' column",
name, table_arg->field[2]->field_name.str );
break;
}
// all good
sError[0] = '\0';
break;
}
// check SphinxQL table
for ( ; tInfo.m_bSphinxQL; )
{
sError[0] = '\0';
// check that 1st column is id, is of int type, and has an index
if ( strcmp ( table_arg->field[0]->field_name.str, "id" ) )
{
my_snprintf ( sError, sizeof(sError), "%s: 1st column must be called 'id'", name );
break;
}
if ( !IsIDField ( table_arg->field[0] ) )
{
my_snprintf ( sError, sizeof(sError), "%s: 'id' column must be INT UNSIGNED or BIGINT", name );
break;
}
// check index
if (
table_arg->s->keys!=1 ||
table_arg->key_info[0].user_defined_key_parts!=1 ||
strcasecmp ( table_arg->key_info[0].key_part[0].field->field_name.str, "id" ) )
{
my_snprintf ( sError, sizeof(sError), "%s: 'id' column must be indexed", name );
break;
}
// check column types
for ( int i=1; i<(int)table_arg->s->fields; i++ )
{
enum_field_types eType = table_arg->field[i]->type();
if ( eType!=MYSQL_TYPE_TIMESTAMP && !IsIntegerFieldType(eType) && eType!=MYSQL_TYPE_VARCHAR && eType!=MYSQL_TYPE_FLOAT )
{
my_snprintf ( sError, sizeof(sError), "%s: column %d(%s) is of unsupported type (use int/bigint/timestamp/varchar/float)",
name, i+1, table_arg->field[i]->field_name.str );
break;
}
}
if ( sError[0] )
break;
// all good
break;
}
// report and bail
if ( sError[0] )
{
my_printf_error(ER_CANT_CREATE_TABLE,
"Can\'t create table %s.%s (Error: %s)",
MYF(0),
table_arg->s->db.str,
table_arg->s->table_name.str, sError);
SPH_RET(-1);
}
SPH_RET(0);
}
// show functions
#if MYSQL_VERSION_ID<50100
#define SHOW_VAR_FUNC_BUFF_SIZE 1024
#endif
CSphSEStats * sphinx_get_stats ( THD * thd, SHOW_VAR * out )
{
#if MYSQL_VERSION_ID>50100
if ( sphinx_hton_ptr )
{
CSphTLS * pTls = (CSphTLS *) thd_get_ha_data ( thd, sphinx_hton_ptr );
if ( pTls && pTls->m_pHeadTable && pTls->m_pHeadTable->m_bStats )
return &pTls->m_pHeadTable->m_tStats;
}
#else
CSphTLS * pTls = (CSphTLS *) thd->ha_data[sphinx_hton.slot];
if ( pTls && pTls->m_pHeadTable && pTls->m_pHeadTable->m_bStats )
return &pTls->m_pHeadTable->m_tStats;
#endif
out->type = SHOW_CHAR;
out->value = (char*) "";
return 0;
}
static int sphinx_showfunc_total ( THD * thd, SHOW_VAR * out, void *,
system_status_var *, enum_var_type )
{
CSphSEStats * pStats = sphinx_get_stats ( thd, out );
if ( pStats )
{
out->type = SHOW_INT;
out->value = (char *) &pStats->m_iMatchesTotal;
}
return 0;
}
static int sphinx_showfunc_total_found ( THD * thd, SHOW_VAR * out, void *,
system_status_var *, enum_var_type )
{
CSphSEStats * pStats = sphinx_get_stats ( thd, out );
if ( pStats )
{
out->type = SHOW_INT;
out->value = (char *) &pStats->m_iMatchesFound;
}
return 0;
}
static int sphinx_showfunc_time ( THD * thd, SHOW_VAR * out, void *,
system_status_var *, enum_var_type )
{
CSphSEStats * pStats = sphinx_get_stats ( thd, out );
if ( pStats )
{
out->type = SHOW_INT;
out->value = (char *) &pStats->m_iQueryMsec;
}
return 0;
}
static int sphinx_showfunc_word_count ( THD * thd, SHOW_VAR * out, void *,
system_status_var *, enum_var_type )
{
CSphSEStats * pStats = sphinx_get_stats ( thd, out );
if ( pStats )
{
out->type = SHOW_INT;
out->value = (char *) &pStats->m_iWords;
}
return 0;
}
static int sphinx_showfunc_words ( THD * thd, SHOW_VAR * out, void * buf,
system_status_var *, enum_var_type )
{
#if MYSQL_VERSION_ID>50100
char *sBuffer = static_cast<char*>(buf);
if ( sphinx_hton_ptr )
{
CSphTLS * pTls = (CSphTLS *) thd_get_ha_data ( thd, sphinx_hton_ptr );
#else
{
CSphTLS * pTls = (CSphTLS *) thd->ha_data[sphinx_hton.slot];
#endif
if ( pTls && pTls->m_pHeadTable && pTls->m_pHeadTable->m_bStats )
{
CSphSEStats * pStats = &pTls->m_pHeadTable->m_tStats;
if ( pStats && pStats->m_iWords )
{
uint uBuffLen = 0;
out->type = SHOW_CHAR;
out->value = sBuffer;
// the following is partially based on code in sphinx_show_status()
sBuffer[0] = 0;
for ( int i=0; i<pStats->m_iWords; i++ )
{
CSphSEWordStats & tWord = pStats->m_dWords[i];
uBuffLen = my_snprintf ( sBuffer, SHOW_VAR_FUNC_BUFF_SIZE, "%s%s:%d:%d ", sBuffer,
tWord.m_sWord, tWord.m_iDocs, tWord.m_iHits );
}
if ( uBuffLen > 0 )
{
// trim last space
sBuffer [ --uBuffLen ] = 0;
if ( pTls->m_pHeadTable->m_pQueryCharset )
{
// String::c_ptr() will nul-terminate the buffer.
//
// NOTE: It's not entirely clear whether this conversion is necessary at all.
String sConvert;
uint iErrors;
sConvert.copy ( sBuffer, uBuffLen, pTls->m_pHeadTable->m_pQueryCharset, system_charset_info, &iErrors );
memcpy ( sBuffer, sConvert.c_ptr(), sConvert.length() + 1 );
}
}
return 0;
}
}
}
out->type = SHOW_CHAR;
out->value = (char*) "";
return 0;
}
static int sphinx_showfunc_error ( THD * thd, SHOW_VAR * out, void *,
system_status_var *, enum_var_type )
{
CSphSEStats * pStats = sphinx_get_stats ( thd, out );
out->type = SHOW_CHAR;
if ( pStats && pStats->m_bLastError )
{
out->value = pStats->m_sLastMessage;
}
else
out->value = (char*)"";
return 0;
}
#if MYSQL_VERSION_ID>50100
struct st_mysql_storage_engine sphinx_storage_engine =
{
MYSQL_HANDLERTON_INTERFACE_VERSION
};
struct st_mysql_show_var sphinx_status_vars[] =
{
{"Sphinx_total", (char *)sphinx_showfunc_total, SHOW_SIMPLE_FUNC},
{"Sphinx_total_found", (char *)sphinx_showfunc_total_found, SHOW_SIMPLE_FUNC},
{"Sphinx_time", (char *)sphinx_showfunc_time, SHOW_SIMPLE_FUNC},
{"Sphinx_word_count", (char *)sphinx_showfunc_word_count, SHOW_SIMPLE_FUNC},
{"Sphinx_words", (char *)sphinx_showfunc_words, SHOW_SIMPLE_FUNC},
{"Sphinx_error", (char *)sphinx_showfunc_error, SHOW_SIMPLE_FUNC},
{0, 0, (enum_mysql_show_type)0}
};
maria_declare_plugin(sphinx)
{
MYSQL_STORAGE_ENGINE_PLUGIN,
&sphinx_storage_engine,
sphinx_hton_name,
"Sphinx developers",
sphinx_hton_comment,
PLUGIN_LICENSE_GPL,
sphinx_init_func, // Plugin Init
sphinx_done_func, // Plugin Deinit
0x0202, // 2.2
sphinx_status_vars,
NULL,
SPHINXSE_VERSION, // string version
MariaDB_PLUGIN_MATURITY_GAMMA
}
maria_declare_plugin_end;
#endif // >50100
//
// $Id: ha_sphinx.cc 4842 2014-11-12 21:03:06Z deogar $
//
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