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-rw-r--r--src/hashcomp.cpp126
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;
-}
-