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/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef NODE_STATE_HPP
#define NODE_STATE_HPP
#include <NdbOut.hpp>
#include <NodeBitmask.hpp>
class NodeState {
public:
enum StartLevel {
/**
* SL_NOTHING
* Nothing is started
*/
SL_NOTHING = 0,
/**
* SL_CMVMI
* CMVMI is started
* Listening to management server
* Qmgr knows nothing...
*/
SL_CMVMI = 1,
/**
* SL_STARTING
* All blocks are starting
* Initial or restart
* During this phase is <b>startPhase</b> valid
*/
SL_STARTING = 2,
/**
* The database is started open for connections
*/
SL_STARTED = 3,
SL_SINGLEUSER = 4,
/**
* SL_STOPPING_1 - Inform API
* API is informed not to start transactions on node
* The database is about to close
*
* New TcSeize(s) are refused (TcSeizeRef)
*/
SL_STOPPING_1 = 5,
/**
* SL_STOPPING_2 - Close TC
* New transactions(TC) are refused
*/
SL_STOPPING_2 = 6,
/**
* SL_STOPPING_3 - Wait for reads in LQH
* No transactions are running in TC
* New scans(s) and read(s) are refused in LQH
* NS: The node is not Primary for any fragment
* NS: No node is allow to start
*/
SL_STOPPING_3 = 7,
/**
* SL_STOPPING_4 - Close LQH
* Node is out of DIGETNODES
* Insert/Update/Delete can still be running in LQH
* GCP is refused
* Node is not startable w.o Node Recovery
*/
SL_STOPPING_4 = 8
};
enum StartType {
ST_INITIAL_START = 0,
ST_SYSTEM_RESTART = 1,
ST_NODE_RESTART = 2,
ST_INITIAL_NODE_RESTART = 3,
ST_ILLEGAL_TYPE = 4
};
/**
* Length in 32-bit words
*/
STATIC_CONST( DataLength = 8 + NdbNodeBitmask::Size );
/**
* Constructor(s)
*/
NodeState();
NodeState(StartLevel);
NodeState(StartLevel, bool systemShutdown);
NodeState(StartLevel, Uint32 startPhase, StartType);
void init();
/**
* Current start level
*/
Uint32 startLevel;
/**
* Node group
*/
Uint32 nodeGroup; // valid when startLevel == SL_STARTING
/**
* Dynamic id
*/
union {
Uint32 dynamicId; // valid when startLevel == SL_STARTING to API
Uint32 masterNodeId; // When from cntr
};
/**
*
*/
union {
struct {
Uint32 startPhase; // valid when startLevel == SL_STARTING
Uint32 restartType; // valid when startLevel == SL_STARTING
} starting;
struct {
Uint32 systemShutdown; // valid when startLevel == SL_STOPPING_{X}
Uint32 timeout;
Uint32 alarmTime;
} stopping;
};
Uint32 singleUserMode;
Uint32 singleUserApi; //the single user node
BitmaskPOD<NdbNodeBitmask::Size> m_connected_nodes;
void setDynamicId(Uint32 dynamic);
void setNodeGroup(Uint32 group);
void setSingleUser(Uint32 s);
void setSingleUserApi(Uint32 n);
/**
* Is a node restart in progress (ordinary or initial)
*/
bool getNodeRestartInProgress() const;
/**
* Is a system restart ongoing
*/
bool getSystemRestartInProgress() const;
/**
* Is in single user mode?
*/
bool getSingleUserMode() const;
/**
* Is in single user mode
*/
Uint32 getSingleUserApi() const;
friend NdbOut & operator<<(NdbOut&, const NodeState&);
};
inline
NodeState::NodeState(){
init();
}
inline
void
NodeState::init(){
startLevel = SL_CMVMI;
nodeGroup = 0xFFFFFFFF;
dynamicId = 0xFFFFFFFF;
singleUserMode = 0;
singleUserApi = 0xFFFFFFFF;
m_connected_nodes.clear();
}
inline
NodeState::NodeState(StartLevel sl){
init();
startLevel = sl;
singleUserMode = 0;
singleUserApi = 0xFFFFFFFF;
}
inline
NodeState::NodeState(StartLevel sl, Uint32 sp, StartType typeOfStart){
init();
startLevel = sl;
starting.startPhase = sp;
starting.restartType = typeOfStart;
singleUserMode = 0;
singleUserApi = 0xFFFFFFFF;
}
inline
NodeState::NodeState(StartLevel sl, bool sys){
init();
startLevel = sl;
stopping.systemShutdown = sys;
singleUserMode = 0;
singleUserApi = 0xFFFFFFFF;
}
inline
void NodeState::setDynamicId(Uint32 dynamic){
dynamicId = dynamic;
}
inline
void NodeState::setNodeGroup(Uint32 group){
nodeGroup = group;
}
inline
void NodeState::setSingleUser(Uint32 s) {
singleUserMode = s;
}
inline
void NodeState::setSingleUserApi(Uint32 n) {
singleUserApi = n;
}
inline
bool NodeState::getNodeRestartInProgress() const {
return startLevel == SL_STARTING &&
(starting.restartType == ST_NODE_RESTART ||
starting.restartType == ST_INITIAL_NODE_RESTART);
}
inline
bool NodeState::getSingleUserMode() const {
return singleUserMode;
}
inline
Uint32 NodeState::getSingleUserApi() const {
return singleUserApi;
}
inline
bool NodeState::getSystemRestartInProgress() const {
return startLevel == SL_STARTING && starting.restartType == ST_SYSTEM_RESTART;
}
inline
NdbOut &
operator<<(NdbOut& ndbout, const NodeState & state){
ndbout << "[NodeState: startLevel: ";
switch(state.startLevel){
case NodeState::SL_NOTHING:
ndbout << "<NOTHING> ]";
break;
case NodeState::SL_CMVMI:
ndbout << "<CMVMI> ]";
break;
case NodeState::SL_STARTING:
ndbout << "<STARTING type: ";
switch(state.starting.restartType){
case NodeState::ST_INITIAL_START:
ndbout << " INITIAL START";
break;
case NodeState::ST_SYSTEM_RESTART:
ndbout << " SYSTEM RESTART ";
break;
case NodeState::ST_NODE_RESTART:
ndbout << " NODE RESTART ";
break;
case NodeState::ST_INITIAL_NODE_RESTART:
ndbout << " INITIAL NODE RESTART ";
break;
case NodeState::ST_ILLEGAL_TYPE:
default:
ndbout << " UNKNOWN " << state.starting.restartType;
}
ndbout << " phase: " << state.starting.startPhase << "> ]";
break;
case NodeState::SL_STARTED:
ndbout << "<STARTED> ]";
break;
case NodeState::SL_STOPPING_1:
ndbout << "<STOPPING 1 sys: " << state.stopping.systemShutdown << "> ]";
break;
case NodeState::SL_STOPPING_2:
ndbout << "<STOPPING 2 sys: " << state.stopping.systemShutdown << "> ]";
break;
case NodeState::SL_STOPPING_3:
ndbout << "<STOPPING 3 sys: " << state.stopping.systemShutdown << "> ]";
break;
case NodeState::SL_STOPPING_4:
ndbout << "<STOPPING 4 sys: " << state.stopping.systemShutdown << "> ]";
break;
default:
ndbout << "<UNKNOWN " << state.startLevel << "> ]";
}
return ndbout;
}
#endif
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