/// <summary>
/// Cleans up this queue
/// </summary>
public void Dispose()
{
m_mutex.Lock();
Length = 0;
while (m_head != null)
{
stackNode *prev = m_head->Previous;
Heap.Free(m_head);
m_head = prev;
}
m_mutex.Unlock();
}
/// <summary>
/// Returns the top element of the Queue without popping it
/// </summary>
/// <returns>The top element</returns>
public unsafe void *Peek()
{
m_mutex.Lock();
if (Length == 0)
{
m_mutex.Unlock();
return(null);
}
stackNode *node = m_head;
void * ret = node->Value;
m_mutex.Unlock();
return(ret);
}
/// <summary>
/// Pops a value from the queue
/// </summary>
/// <returns>The value</returns>
public unsafe void *Pop()
{
m_mutex.Lock();
if (Length == 0)
{
m_mutex.Unlock();
return(null);
}
stackNode *node = m_head;
void * ret = node->Value;
m_head = m_head->Previous;
Heap.Free(node);
Length--;
m_mutex.Unlock();
return(ret);
}
/// <summary>
/// Pushes a new value onto the queue
/// </summary>
/// <param name="value">The value</param>
public void Push(void *value)
{
stackNode *node = (stackNode *)Heap.Alloc(sizeof(stackNode));
node->Value = value;
node->Previous = null;
m_mutex.Lock();
if (Length == 0)
{
m_head = node;
}
else
{
m_tail->Previous = node;
}
m_tail = node;
Length++;
m_mutex.Unlock();
}