public static VectorClock max(VectorClock vcOne, VectorClock vcTwo)
{
VectorClock newClock = new VectorClock("default");
foreach (var x in vcOne.versions)
{
newClock.versions.Add(x);
}
foreach (var x in vcTwo.versions)
{
if (!newClock.versions.Contains(x))
{
newClock.versions.Add(x);
}
}
return newClock;
}
public static VectorComparison compare(VectorClock vcOne, VectorClock vcTwo)
{
// Initially we assume it is all possible things.
bool equal = true;
bool greater = true;
bool smaller = true;
// Go over all elements in Clock one.
foreach (var x in vcOne.versions)
{
// Compare if also present in clock two.
if (vcTwo.versions.Contains(x))
{
// If there is a difference, it can never be equal.
// Greater / smaller depends on the difference.
if (vcOne.getTimestamp() < vcTwo.getTimestamp())
{
equal = false;
greater = false;
}
if (vcOne.getTimestamp() > vcTwo.getTimestamp())
{
equal = false;
smaller = false;
}
}
// Else assume zero (default value is 0).
else if (vcOne.getTimestamp() != 0)
{
equal = false;
smaller = false;
}
}
// Go over all elements in Clock two.
foreach (var x in vcTwo.versions)
{
// Only elements we have not found in One still need to be checked.
if (vcOne.getTimestamp() != 0 && vcTwo.getTimestamp() != 0)
{
equal = false;
greater = false;
}
}
// Return based on determined information.
if (equal)
{
return(VectorComparison.Equal);
}
else if (greater && !smaller)
{
return(VectorComparison.Greater);
}
else if (smaller && !greater)
{
return(VectorComparison.Smaller);
}
else
{
return(VectorComparison.Simultaneous);
}
}
public static VectorClock compare(VectorClock vcOne, VectorClock vcTwo)
{
return vcOne;
}
public static VectorComparison compare(VectorClock vcOne, VectorClock vcTwo)
{
// Initially we assume it is all possible things.
bool equal = true;
bool greater = true;
bool smaller = true;
// Go over all elements in Clock one.
foreach (var x in vcOne.versions)
{
// Compare if also present in clock two.
if (vcTwo.versions.Contains(x))
{
// If there is a difference, it can never be equal.
// Greater / smaller depends on the difference.
if (vcOne.getTimestamp() < vcTwo.getTimestamp())
{
equal = false;
greater = false;
}
if (vcOne.getTimestamp() > vcTwo.getTimestamp())
{
equal = false;
smaller = false;
}
}
// Else assume zero (default value is 0).
else if (vcOne.getTimestamp() != 0)
{
equal = false;
smaller = false;
}
}
// Go over all elements in Clock two.
foreach (var x in vcTwo.versions)
{
// Only elements we have not found in One still need to be checked.
if (vcOne.getTimestamp() !=0 && vcTwo.getTimestamp() != 0)
{
equal = false;
greater = false;
}
}
// Return based on determined information.
if (equal)
{
return VectorComparison.Equal;
}
else if (greater && !smaller)
{
return VectorComparison.Greater;
}
else if (smaller && !greater)
{
return VectorComparison.Smaller;
}
else
{
return VectorComparison.Simultaneous;
}
}