public override void SetAsAction(RowActionBase action)
{
lock (this)
{
base.SetAsAction(action);
}
}
public int Commit(Session session)
{
lock (this)
{
RowActionBase next = this;
int type = 0;
do
{
if ((next.session == session) && (next.CommitTimestamp == 0))
{
next.CommitTimestamp = session.ActionTimestamp;
next.Prepared = false;
if (next.type == 1)
{
type = next.type;
}
else if (next.type == 2)
{
type = (type == 1) ? 4 : next.type;
}
}
next = next.Next;
}while (next != null);
return(type);
}
}
public virtual void SetAsAction(RowActionBase action)
{
this.Next = action.Next;
this.session = action.session;
this.ActionTimestamp = action.ActionTimestamp;
this.CommitTimestamp = action.CommitTimestamp;
this.type = action.type;
this.DeleteComplete = action.DeleteComplete;
this.Rolledback = action.Rolledback;
this.Prepared = action.Prepared;
this.ChangeColumnMap = action.ChangeColumnMap;
}
public bool HasCurrentRefAction()
{
RowActionBase next = this;
while ((next.type != 5) || (next.CommitTimestamp != 0))
{
next = next.Next;
if (next == null)
{
return(false);
}
}
return(true);
}
public void PrepareCommit(Session session)
{
lock (this)
{
RowActionBase next = this;
do
{
if ((next.session == session) && (next.CommitTimestamp == 0))
{
next.Prepared = true;
}
next = next.Next;
}while (next != null);
}
}
public void Complete(Session session)
{
lock (this)
{
RowActionBase next = this;
do
{
if ((next.session == session) && (next.ActionTimestamp == 0))
{
next.ActionTimestamp = session.ActionTimestamp;
}
next = next.Next;
}while (next != null);
}
}
public bool IsDeleted()
{
lock (this)
{
RowActionBase next = this;
while ((next.CommitTimestamp == 0) || ((next.type != 2) && (next.type != 3)))
{
next = next.Next;
if (next == null)
{
return(false);
}
}
return(true);
}
}
public int MergeRollback(Session session, long timestamp, Row row)
{
lock (this)
{
RowActionBase next = this;
RowActionBase action = null;
RowActionBase base4 = null;
int rollbackType = this.GetRollbackType(session);
do
{
if ((next.session == session) && next.Rolledback)
{
if (base4 != null)
{
base4.Next = null;
}
}
else if (action == null)
{
action = base4 = next;
}
else
{
base4.Next = next;
base4 = next;
}
next = next.Next;
}while (next != null);
if (action == null)
{
int num3 = rollbackType;
if ((num3 != 1) && (num3 != 4))
{
this.SetAsNoOp();
}
else
{
this.SetAsDeleteFinal(timestamp);
}
}
else if (action != this)
{
base.SetAsAction(action);
}
return(rollbackType);
}
}
public void Rollback(Session session, long timestamp)
{
lock (this)
{
RowActionBase next = this;
do
{
if (((next.session == session) && (next.CommitTimestamp == 0)) && (next.ActionTimestamp >= timestamp))
{
next.CommitTimestamp = session.ActionTimestamp;
next.Rolledback = true;
next.Prepared = false;
}
next = next.Next;
}while (next != null);
}
}
private int GetRollbackType(Session session)
{
int type = 0;
RowActionBase next = this;
do
{
if ((next.session == session) && next.Rolledback)
{
if (next.type == 2)
{
type = (type == 1) ? 4 : next.type;
}
else if (next.type == 1)
{
type = next.type;
}
}
next = next.Next;
}while (next != null);
return(type);
}
public int GetCommitTypeOn(long timestamp)
{
lock (this)
{
RowActionBase next = this;
int type = 0;
do
{
if (next.CommitTimestamp == timestamp)
{
if (next.type == 1)
{
type = next.type;
}
else if (next.type == 2)
{
type = (type == 1) ? 4 : next.type;
}
}
next = next.Next;
}while (next != null);
return(type);
}
}
public void MergeToTimestamp(long timestamp)
{
lock (this)
{
RowActionBase next = this;
RowActionBase action = null;
RowActionBase base4 = null;
int commitTypeOn = this.GetCommitTypeOn(timestamp);
if ((base.type == 3) || (base.type == 0))
{
goto Label_00C7;
}
switch (commitTypeOn)
{
case 2:
case 4:
this.SetAsDeleteFinal(timestamp);
goto Label_00C7;
default:
do
{
bool flag = false;
if (next.CommitTimestamp != 0)
{
if (next.CommitTimestamp <= timestamp)
{
flag = true;
}
else if (next.type == 5)
{
flag = true;
}
}
if (flag)
{
if (base4 != null)
{
base4.Next = null;
}
}
else if (action == null)
{
action = base4 = next;
}
else
{
base4.Next = next;
base4 = next;
}
next = next.Next;
}while (next != null);
if (action == null)
{
switch (commitTypeOn)
{
case 2:
case 4:
this.SetAsDeleteFinal(timestamp);
goto Label_00B7;
}
this.SetAsNoOp();
}
else if (action != this)
{
base.SetAsAction(action);
}
break;
}
Label_00B7:
this.MergeExpiredRefActions();
Label_00C7 :;
}
}
public RowAction AddDeleteAction(Session session, int[] colMap)
{
RowAction action;
lock (this)
{
RowActionBase base1;
if (base.type == 0)
{
this.SetAsAction(session, 2);
base.ChangeColumnMap = colMap;
goto Label_00E6;
}
RowActionBase next = this;
Label_0024:
if (next.type == 1)
{
if ((next.CommitTimestamp == 0) && (session != next.session))
{
throw Error.RuntimeError(0xc9, "RowAction");
}
}
else
{
if (next.type == 2)
{
if (session == next.session)
{
goto Label_007F;
}
goto Label_00A0;
}
if (((next.type == 5) && (session != next.session)) && ((next.CommitTimestamp == 0) && ((colMap == null) || ArrayUtil.HaveCommonElement(colMap, next.ChangeColumnMap))))
{
goto Label_00B8;
}
}
Label_007F:
if (next.Next == null)
{
goto Label_00D0;
}
next = next.Next;
goto Label_0024;
Label_00A0:
session.TempSet.Add(next.session);
return(null);
Label_00B8:
session.TempSet.Add(next.session);
return(null);
Label_00D0:
base1 = new RowActionBase(session, 2);
base1.ChangeColumnMap = colMap;
RowActionBase base3 = base1;
next.Next = base3;
Label_00E6:
action = this;
}
return(action);
}
public bool CanRead(Session session, int mode)
{
bool flag;
lock (this)
{
long transactionTimestamp;
if (base.type == 0)
{
return(true);
}
if (base.type == 3)
{
return(false);
}
int type = 0;
RowActionBase next = this;
if (session == null)
{
transactionTimestamp = 0x7fffffffffffffffL;
}
else
{
int isolationLevel = session.IsolationLevel;
if (isolationLevel <= 0x1000)
{
if (isolationLevel == 0x1000)
{
transactionTimestamp = session.ActionTimestamp;
}
}
else if (isolationLevel == 0x10000)
{
}
transactionTimestamp = session.TransactionTimestamp;
}
do
{
if (next.type == 5)
{
next = next.Next;
}
else if (next.Rolledback)
{
if (next.type == 1)
{
type = 2;
}
next = next.Next;
}
else if (session == next.session)
{
if (next.type == 2)
{
type = next.type;
}
else if (next.type == 1)
{
type = next.type;
}
next = next.Next;
}
else if (next.CommitTimestamp == 0)
{
if (next.type == 0)
{
throw Error.RuntimeError(0xc9, "RowAction");
}
if (next.type == 1)
{
goto Label_0164;
}
if (((next.type == 2) && (mode != 1)) && (mode == 2))
{
type = 2;
}
next = next.Next;
}
else
{
if (next.CommitTimestamp < transactionTimestamp)
{
if (next.type == 2)
{
type = next.type;
}
else if (next.type == 1)
{
type = next.type;
}
}
else if (next.type == 1)
{
type = 2;
}
next = next.Next;
}
}while (next != null);
goto Label_0196;
Label_0164:
if (mode == 0)
{
type = 2;
}
else if (mode == 1)
{
type = (next.ChangeColumnMap == null) ? 1 : 2;
}
else if (mode == 2)
{
type = 2;
}
Label_0196:
flag = (type == 0) || (type == 1);
}
return(flag);
}
public bool CanCommit(Session session, OrderedHashSet <Session> set)
{
bool flag;
lock (this)
{
long transactionTimestamp = session.TransactionTimestamp;
long commitTimestamp = -1L;
bool flag2 = false;
RowActionBase next = this;
if (session.IsolationLevel == 0x1000)
{
do
{
if (((next.session == session) && (next.type == 2)) && (next.CommitTimestamp == 0))
{
transactionTimestamp = next.ActionTimestamp;
}
next = next.Next;
}while (next != null);
next = this;
}
Label_0059:
if (next.session == session)
{
if (next.type == 2)
{
flag2 = true;
}
goto Label_00CB;
}
if (next.Rolledback || (next.type != 2))
{
next = next.Next;
}
else
{
if (next.Prepared)
{
return(false);
}
if (next.CommitTimestamp == 0)
{
set.Add(next.session);
}
else if (next.CommitTimestamp > commitTimestamp)
{
commitTimestamp = next.CommitTimestamp;
}
goto Label_00CB;
}
Label_00C5:
if (next != null)
{
goto Label_0059;
}
goto Label_00DD;
Label_00CB:
next = next.Next;
goto Label_00C5;
Label_00DD:
flag = !flag2 || (commitTimestamp < transactionTimestamp);
}
return(flag);
}
