303 lines
7.1 KiB
C++
303 lines
7.1 KiB
C++
/*
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Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef ACC_SCAN_HPP
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#define ACC_SCAN_HPP
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#include "SignalData.hpp"
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#define JAM_FILE_ID 121
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/*
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* Used by ACC and TUX scan.
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*/
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class AccScanReq {
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/**
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* Sender(s)
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*/
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friend class Dblqh;
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/**
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* Reciver(s)
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*/
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friend class Dbacc;
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friend class Dbtux;
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friend class Dbtup;
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public:
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STATIC_CONST( SignalLength = 8 );
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private:
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Uint32 senderData;
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Uint32 senderRef;
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Uint32 tableId;
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Uint32 fragmentNo;
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Uint32 requestInfo;
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Uint32 transId1;
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Uint32 transId2;
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union {
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Uint32 savePointId;
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Uint32 gci;
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};
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Uint32 maxPage;
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/**
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* Previously there where also a scan type
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*/
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static Uint32 getLockMode(const Uint32 & requestInfo);
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static Uint32 getReadCommittedFlag(const Uint32 & requestInfo);
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static Uint32 getDescendingFlag(const Uint32 & requestInfo);
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static void setLockMode(Uint32 & requestInfo, Uint32 lockMode);
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static void setReadCommittedFlag(Uint32 & requestInfo, Uint32 readCommitted);
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static void setDescendingFlag(Uint32 & requestInfo, Uint32 descending);
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static Uint32 getNoDiskScanFlag(const Uint32 & requestInfo);
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static void setNoDiskScanFlag(Uint32 & requestInfo, Uint32 nodisk);
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static Uint32 getNRScanFlag(const Uint32 & requestInfo);
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static void setNRScanFlag(Uint32 & requestInfo, Uint32 nr);
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static Uint32 getLcpScanFlag(const Uint32 & requestInfo);
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static void setLcpScanFlag(Uint32 & requestInfo, Uint32 nr);
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static Uint32 getStatScanFlag(const Uint32 & requestInfo);
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static void setStatScanFlag(Uint32 & requestInfo, Uint32 nr);
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};
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/**
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* Request Info
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*
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* l = Lock Mode - 1 Bit 2
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* h = Read Committed - 1 Bit 5
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* z = Descending (TUX) - 1 Bit 6
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* d = No disk scan - 1 Bit 7
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* n = Node recovery scan - 1 Bit 8
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* c = LCP scan - 1 Bit 9
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* s = Statistics scan - 1 Bit 4
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*
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* 1111111111222222222233
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* 01234567890123456789012345678901
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* l shzdn
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*/
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#define AS_LOCK_MODE_SHIFT (2)
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#define AS_LOCK_MODE_MASK (1)
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#define AS_READ_COMMITTED_SHIFT (5)
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#define AS_DESCENDING_SHIFT (6)
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#define AS_NO_DISK_SCAN (7)
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#define AS_NR_SCAN (8)
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#define AS_LCP_SCAN (9)
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#define AS_STAT_SCAN (4)
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inline
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Uint32
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AccScanReq::getLockMode(const Uint32 & requestInfo){
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return (requestInfo >> AS_LOCK_MODE_SHIFT) & AS_LOCK_MODE_MASK;
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}
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inline
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Uint32
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AccScanReq::getReadCommittedFlag(const Uint32 & requestInfo){
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return (requestInfo >> AS_READ_COMMITTED_SHIFT) & 1;
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}
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inline
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Uint32
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AccScanReq::getDescendingFlag(const Uint32 & requestInfo){
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return (requestInfo >> AS_DESCENDING_SHIFT) & 1;
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}
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inline
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void
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AccScanReq::setLockMode(UintR & requestInfo, UintR val){
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ASSERT_MAX(val, AS_LOCK_MODE_MASK, "AccScanReq::setLockMode");
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requestInfo |= (val << AS_LOCK_MODE_SHIFT);
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}
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inline
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void
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AccScanReq::setReadCommittedFlag(UintR & requestInfo, UintR val){
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ASSERT_BOOL(val, "AccScanReq::setReadCommittedFlag");
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requestInfo |= (val << AS_READ_COMMITTED_SHIFT);
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}
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inline
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void
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AccScanReq::setDescendingFlag(UintR & requestInfo, UintR val){
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ASSERT_BOOL(val, "AccScanReq::setDescendingFlag");
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requestInfo |= (val << AS_DESCENDING_SHIFT);
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}
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inline
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Uint32
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AccScanReq::getNoDiskScanFlag(const Uint32 & requestInfo){
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return (requestInfo >> AS_NO_DISK_SCAN) & 1;
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}
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inline
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void
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AccScanReq::setNoDiskScanFlag(UintR & requestInfo, UintR val){
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ASSERT_BOOL(val, "AccScanReq::setNoDiskScanFlag");
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requestInfo |= (val << AS_NO_DISK_SCAN);
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}
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inline
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Uint32
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AccScanReq::getNRScanFlag(const Uint32 & requestInfo){
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return (requestInfo >> AS_NR_SCAN) & 1;
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}
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inline
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void
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AccScanReq::setNRScanFlag(UintR & requestInfo, UintR val){
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ASSERT_BOOL(val, "AccScanReq::setNoDiskScanFlag");
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requestInfo |= (val << AS_NR_SCAN);
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}
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inline
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Uint32
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AccScanReq::getLcpScanFlag(const Uint32 & requestInfo){
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return (requestInfo >> AS_LCP_SCAN) & 1;
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}
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inline
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void
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AccScanReq::setLcpScanFlag(UintR & requestInfo, UintR val){
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ASSERT_BOOL(val, "AccScanReq::setNoDiskScanFlag");
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requestInfo |= (val << AS_LCP_SCAN);
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}
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inline
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Uint32
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AccScanReq::getStatScanFlag(const Uint32 & requestInfo){
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return (requestInfo >> AS_STAT_SCAN) & 1;
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}
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inline
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void
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AccScanReq::setStatScanFlag(UintR & requestInfo, UintR val){
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ASSERT_BOOL(val, "AccScanReq::setStatScanScanFlag");
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requestInfo |= (val << AS_STAT_SCAN);
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}
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class AccScanConf {
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/**
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* Sender(s)
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*/
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friend class Dbacc;
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friend class Dbtux;
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friend class Dbtup;
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/**
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* Reciver(s)
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*/
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friend class Dblqh;
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enum {
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ZEMPTY_FRAGMENT = 0,
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ZNOT_EMPTY_FRAGMENT = 1
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};
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public:
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STATIC_CONST( SignalLength = 8 );
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private:
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Uint32 scanPtr;
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Uint32 accPtr;
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Uint32 unused1;
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Uint32 unused2;
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Uint32 unused3;
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Uint32 unused4;
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Uint32 unused5;
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Uint32 flag;
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};
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class AccScanRef {
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friend class Dbtux;
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friend class Dblqh;
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enum ErrorCode {
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TuxNoFreeScanOp = 909,
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TuxIndexNotOnline = 910,
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TuxInvalidKeySize = 911,
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TuxInvalidLockMode = 912,
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TuxNoFreeStatOp = 915,
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};
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public:
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STATIC_CONST( SignalLength = 3 );
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private:
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Uint32 scanPtr;
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Uint32 accPtr;
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Uint32 errorCode;
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};
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class AccCheckScan {
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friend class Dbacc;
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friend class Dbtux;
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friend class Dbtup;
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friend class Dblqh;
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enum {
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ZCHECK_LCP_STOP = 0, // Execution should check-in with LQH
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ZNOT_CHECK_LCP_STOP = 1 // Execution should not check-in with LQH
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};
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public:
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STATIC_CONST( SignalLength = 2 );
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private:
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Uint32 accPtr; // scanptr.i in ACC/TUX/TUP
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Uint32 checkLcpStop; // from enum
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};
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class CheckLcpStop
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{
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friend class Dbacc;
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friend class Dbtux;
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friend class Dbtup;
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friend class Dblqh;
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enum ScanState
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{
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ZSCAN_RUNNABLE = 0, // Scan runnable immediately
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ZSCAN_RESOURCE_WAIT = 1, // Scan waiting for something
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ZSCAN_RUNNABLE_YIELD = 2 // Scan runnable, yielding cpu
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};
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enum Reply
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{
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ZTAKE_A_BREAK = RNIL // In signal[0] after EXECUTE_DIRECT
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};
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public:
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STATIC_CONST( SignalLength = 2);
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private:
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Uint32 scanPtrI; // scanptr.i from ACC/TUX/TUP
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Uint32 scanState;
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};
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#undef JAM_FILE_ID
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#endif
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