public MemoryContainer(int capacity)
{
do
{
m_Current = m_Memory = (byte *)NativeFunctions.AllocateProcessMemory(capacity).ToPointer();
m_End = m_Current + capacity;
}while (m_Memory == null && (capacity /= 2) > 64);
if (m_Memory == null)
{
throw new OutOfMemoryException();
}
}
private void Reallocate()
{
var oldPtr = m_Ptr;
m_Ptr = (char *)NativeFunctions.AllocateProcessMemory(kSizeOfChar * (m_Capacity + 1)); // +2 part comes so FastString could copy 4 bytes at a time
for (int i = 0; i < m_Length; i++)
{
m_Ptr[i] = oldPtr[i];
}
NativeFunctions.FreeProcessMemory((IntPtr)oldPtr);
}
public AstNodeContainer(int capacity)
{
do
{
var byteCount = capacity * kNodeSize;
m_NextNode = m_Nodes = (byte *)NativeFunctions.AllocateProcessMemory(byteCount);
m_End = m_Nodes + byteCount;
}while (m_Nodes == null && (capacity /= 2) > 64);
if (m_Nodes == null)
{
throw new OutOfMemoryException();
}
}
public FastStringBuilder(string str)
{
var strLength = str.Length;
m_Capacity = m_Length = strLength;
m_Ptr = (char *)NativeFunctions.AllocateProcessMemory(kSizeOfChar * (m_Capacity + 1));
fixed(char *src = str)
{
for (int i = 0; i < strLength; i++)
{
m_Ptr[i] = src[i];
}
}
}
static FastString()
{
kPointerToNullChar = (char *)NativeFunctions.AllocateProcessMemory(1);
*kPointerToNullChar = '\0';
kEmpty.m_Buffer = kPointerToNullChar;
}
public FastStringBuilder()
{
m_Capacity = kInitialCapacity;
m_Ptr = (char *)NativeFunctions.AllocateProcessMemory(kSizeOfChar * (m_Capacity + 1));
}
