polardbxengine/storage/ndb/include/kernel/signaldata/DbinfoScan.hpp

96 lines
2.8 KiB
C++

/*
Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is also distributed with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have included with MySQL.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License, version 2.0, for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#ifndef DBINFO_SCAN_H
#define DBINFO_SCAN_H
#include "SignalData.hpp"
#define JAM_FILE_ID 122
struct DbinfoScanCursor
{
Uint32 data[11];
};
struct DbinfoScan
{
STATIC_CONST( SignalLength = 12 );
// API identifiers
Uint32 resultData; // Will be returned in TransIdAI::connectPtr
Uint32 transId[2]; // ID unique to API
Uint32 resultRef; // Where to send result rows
// Parameters for the scan
Uint32 tableId; // DBINFO table ID
Uint32 colBitmap[2]; // bitmap of what columns you want. (64bit)
Uint32 requestInfo; // flags
Uint32 maxRows; // Max number of rows to return per REQ
Uint32 maxBytes; // Max number of bytes to return per REQ
// Result from the scan
Uint32 returnedRows; // Number of rows returned for this CONF
// Cursor that contains data used by the kernel for keeping track
// of where it is, how many bytes or rows it has sent etc.
// Set to zero in last CONF to indicate that scan is finished
Uint32 cursor_sz;
// Cursor data of cursor_sz size follows
DbinfoScanCursor cursor;
static const Uint32* getCursorPtr(const DbinfoScan* sig) {
return sig->cursor.data;
}
static Uint32* getCursorPtrSend(DbinfoScan* sig) {
return sig->cursor.data;
}
};
typedef DbinfoScan DbinfoScanReq;
typedef DbinfoScan DbinfoScanConf;
struct DbinfoScanRef
{
STATIC_CONST( SignalLength = 5 );
// API identifiers
Uint32 resultData; // Will be returned in TransIdAI::connectPtr
Uint32 transId[2]; // ID unique to API
Uint32 resultRef; // Where to send result rows
Uint32 errorCode; // Error Code
enum ErrorCode
{
NoError = 0,
NoTable = 4800
};
};
#undef JAM_FILE_ID
#endif