More comments, and remove some unused craq. Someone (that being me) once wrote a craqy imitation of std::bitset called dynamicbitmask which took up a large amount of hashcomp.{h,cpp} before i actually knew that std::bitset existed. NOTHING has ever used this class, so whack it as tidyup, knowing it wont

break anything :)


git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@10567 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 0 insertions, 126 deletions

diff --git a/src/hashcomp.cpp b/src/hashcomp.cpp
index a9a3441b9..ed68cd941 100644
--- a/src/hashcomp.cpp
+++ b/src/hashcomp.cpp
@@ -501,129 +501,3 @@ long irc::portparser::GetToken()
 	}
 }
 
-irc::dynamicbitmask::dynamicbitmask() : bits_size(4)
-{
-	/* We start with 4 bytes allocated which is room
-	 * for 4 items. Something makes me doubt its worth
-	 * allocating less than 4 bytes.
-	 */
-	bits = new unsigned char[bits_size];
-	memset(bits, 0, bits_size);
-}
-
-irc::dynamicbitmask::~dynamicbitmask()
-{
-	/* Tidy up the entire used memory on delete */
-	delete[] bits;
-}
-
-irc::bitfield irc::dynamicbitmask::Allocate()
-{
-	/* Yeah, this isnt too efficient, however a module or the core
-	 * should only be allocating bitfields on load, the Toggle and
-	 * Get methods are O(1) as these are called much more often.
-	 */
-	unsigned char* freebits = this->GetFreeBits();
-	for (unsigned char i = 0; i < bits_size; i++)
-	{
-		/* Yes, this is right. You'll notice we terminate the  loop when !current_pos,
-		 * this is because we logic shift our bit off the end of unsigned char, and its
-		 * lost, making the loop counter 0 when we're done.
-		 */
-		for (unsigned char current_pos = 1; current_pos; current_pos = current_pos << 1)
-		{
-			if (!(freebits[i] & current_pos))
-			{
-				freebits[i] |= current_pos;
-				return std::make_pair(i, current_pos);
-			}
-		}
-	}
-	/* We dont have any free space left, increase by one */
-
-	if (bits_size == 255)
-		/* Oh dear, cant grow it any further */
-		throw std::bad_alloc();
-
-	unsigned char old_bits_size = bits_size;
-	bits_size++;
-	/* Allocate new bitfield space */
-	unsigned char* temp_bits = new unsigned char[bits_size];
-	unsigned char* temp_freebits = new unsigned char[bits_size];
-	/* Copy the old data in */
-	memcpy(temp_bits, bits, old_bits_size);
-	memcpy(temp_freebits, freebits, old_bits_size);
-	/* Delete the old data pointers */
-	delete[] bits;
-	delete[] freebits;
-	/* Swap the pointers over so now the new 
-	 * pointers point to our member values
-	 */
-	bits = temp_bits;
-	freebits = temp_freebits;
-	this->SetFreeBits(freebits);
-	/* Initialize the new byte on the end of
-	 * the bitfields, pre-allocate the one bit
-	 * for this allocation
-	 */
-	bits[old_bits_size] = 0;
-	freebits[old_bits_size] = 1;
-	/* We already know where we just allocated
-	 * the bitfield, so no loop needed
-	 */
-	return std::make_pair(old_bits_size, 1);
-}
-
-bool irc::dynamicbitmask::Deallocate(irc::bitfield &pos)
-{
-	/* We dont bother to shrink the bitfield
-	 * on deallocation, the most we could do
-	 * is save one byte (!) and this would cost
-	 * us a loop (ugly O(n) stuff) so we just
-	 * clear the bit and leave the memory
-	 * claimed -- nobody will care about one
-	 * byte.
-	 */
-	if (pos.first < bits_size)
-	{
-		this->GetFreeBits()[pos.first] &= ~pos.second;
-		return true;
-	}
-	/* They gave a bitfield outside of the
-	 * length of our array. BAD programmer.
-	 */
-	return false;
-}
-
-void irc::dynamicbitmask::Toggle(irc::bitfield &pos, bool state)
-{
-	/* Range check the value */
-	if (pos.first < bits_size)
-	{
-		if (state)
-			/* Set state, OR the state in */
-			bits[pos.first] |= pos.second;
-		else
-			/* Clear state, AND the !state out */
-			bits[pos.first] &= ~pos.second;
-	}
-}
-
-bool irc::dynamicbitmask::Get(irc::bitfield &pos)
-{
-	/* Range check the value */
-	if (pos.first < bits_size)
-		return (bits[pos.first] & pos.second);
-	else
-		/* We can't return false, otherwise we can't
-		 * distinguish between failure and a cleared bit!
-		 * Our only sensible choice is to throw (ew).
-		 */
-		throw ModuleException("irc::dynamicbitmask::Get(): Invalid bitfield, out of range");
-}
-
-unsigned char irc::dynamicbitmask::GetSize()
-{
-	return bits_size;
-}
-