private InMemoryBlock GetAreaBlock(long pointer)
{
lock (this) {
// Find the pointer in the hash
var hashPos = (int)(pointer % areaMap.Length);
InMemoryBlock prev = null;
var block = areaMap[hashPos];
// Search for this pointer
while (block != null && block.Id != pointer)
{
prev = block;
block = block.Next;
}
if (block == null)
{
throw new IOException("Pointer " + pointer + " is invalid.");
}
// Move the element to the start of the list.
if (prev != null)
{
prev.Next = block.Next;
block.Next = areaMap[hashPos];
areaMap[hashPos] = block;
}
return(block);
}
}
/// <inheritdoc/>
public void DeleteArea(long id)
{
lock (this) {
// Find the pointer in the hash
var hashPos = (int)(id % areaMap.Length);
InMemoryBlock prev = null;
InMemoryBlock block = areaMap[hashPos];
// Search for this pointer
while (block != null && block.Id != id)
{
prev = block;
block = block.Next;
}
// If not found
if (block == null)
{
throw new IOException("Area ID " + id + " is invalid.");
}
// Remove
if (prev == null)
{
areaMap[hashPos] = block.Next;
}
else
{
prev.Next = block.Next;
}
// Garbage collector should do the rest...
}
}
/// <inheritdoc/>
public IArea CreateArea(long size)
{
if (size > Int32.MaxValue)
{
throw new IOException("'size' is too large.");
}
lock (this) {
// Generate a unique id for this area.
long id = uniqueIdKey;
++uniqueIdKey;
// Create the element.
var element = new InMemoryBlock(id, (int)size);
// The position in the hash map
int hashPos = (int)(id % areaMap.Length);
// Add to the chain
element.Next = areaMap[hashPos];
areaMap[hashPos] = element;
return(element.GetArea(false));
}
}
private void Dispose(bool disposing)
{
if (disposing)
{
fixedAreaBlock = null;
areaMap = null;
}
}
private void Dispose(bool disposing)
{
if (disposing)
{
if (areaMap != null)
{
for (int i = 0; i < areaMap.Length; i++)
{
var block = areaMap[i];
if (block != null)
{
block.Dispose();
}
areaMap[i] = null;
}
}
}
fixedAreaBlock = null;
areaMap = null;
}
/// <inheritdoc/>
public IArea CreateArea(long size)
{
if (size > Int32.MaxValue)
throw new IOException("'size' is too large.");
lock (this) {
// Generate a unique id for this area.
long id = uniqueIdKey;
++uniqueIdKey;
// Create the element.
var element = new InMemoryBlock(id, (int)size);
// The position in the hash map
int hashPos = (int)(id % areaMap.Length);
// Add to the chain
element.Next = areaMap[hashPos];
areaMap[hashPos] = element;
return element.GetArea(false);
}
}
private void Dispose(bool disposing)
{
if (disposing) {
if (areaMap != null) {
for (int i = 0; i < areaMap.Length; i++) {
var block = areaMap[i];
if (block != null)
block.Dispose();
areaMap[i] = null;
}
}
}
fixedAreaBlock = null;
areaMap = null;
}
private void Dispose(bool disposing)
{
if (disposing) {
fixedAreaBlock = null;
areaMap = null;
}
}