* ---------------------------------------------------
*/
-/* $Core: libIRCDhash */
+/* $Core */
#include "inspircd.h"
#include "hashcomp.h"
if (n)
{
for (char* t = n; *t; t++)
- *t = lowermap[(unsigned char)*t];
+ *t = rfc_case_insensitive_map[(unsigned char)*t];
}
}
/* XXX: NO DATA COPIES! :)
* The hash function here is practically
* a copy of the one in STL's hash_fun.h,
- * only with *x replaced with lowermap[*x].
+ * only with *x replaced with rfc_case_insensitive_map[*x].
* This avoids a copy to use hash<const char*>
*/
register size_t t = 0;
for (std::string::const_iterator x = s.begin(); x != s.end(); ++x) /* ++x not x++, as its faster */
- t = 5 * t + lowermap[(unsigned char)*x];
+ t = 5 * t + rfc_case_insensitive_map[(unsigned char)*x];
return t;
}
{
register size_t t = 0;
for (irc::string::const_iterator x = s.begin(); x != s.end(); ++x) /* ++x not x++, as its faster */
- t = 5 * t + lowermap[(unsigned char)*x];
+ t = 5 * t + rfc_case_insensitive_map[(unsigned char)*x];
return t;
}
const unsigned char* n1 = (const unsigned char*)s1.c_str();
const unsigned char* n2 = (const unsigned char*)s2.c_str();
for (; *n1 && *n2; n1++, n2++)
- if (lowermap[*n1] != lowermap[*n2])
+ if (rfc_case_insensitive_map[*n1] != rfc_case_insensitive_map[*n2])
return false;
- return (lowermap[*n1] == lowermap[*n2]);
+ return (rfc_case_insensitive_map[*n1] == rfc_case_insensitive_map[*n2]);
}
/******************************************************
* std::string which is not only case-insensitive but
* can also do scandanavian comparisons, e.g. { = [, etc.
*
- * This class depends on the const array 'lowermap'.
+ * This class depends on the const array 'rfc_case_insensitive_map'.
*
******************************************************/
bool irc::irc_char_traits::eq(char c1st, char c2nd)
{
- return lowermap[(unsigned char)c1st] == lowermap[(unsigned char)c2nd];
+ return rfc_case_insensitive_map[(unsigned char)c1st] == rfc_case_insensitive_map[(unsigned char)c2nd];
}
bool irc::irc_char_traits::ne(char c1st, char c2nd)
{
- return lowermap[(unsigned char)c1st] != lowermap[(unsigned char)c2nd];
+ return rfc_case_insensitive_map[(unsigned char)c1st] != rfc_case_insensitive_map[(unsigned char)c2nd];
}
bool irc::irc_char_traits::lt(char c1st, char c2nd)
{
- return lowermap[(unsigned char)c1st] < lowermap[(unsigned char)c2nd];
+ return rfc_case_insensitive_map[(unsigned char)c1st] < rfc_case_insensitive_map[(unsigned char)c2nd];
}
int irc::irc_char_traits::compare(const char* str1, const char* str2, size_t n)
{
for(unsigned int i = 0; i < n; i++)
{
- if(lowermap[(unsigned char)*str1] > lowermap[(unsigned char)*str2])
+ if(rfc_case_insensitive_map[(unsigned char)*str1] > rfc_case_insensitive_map[(unsigned char)*str2])
return 1;
- if(lowermap[(unsigned char)*str1] < lowermap[(unsigned char)*str2])
+ if(rfc_case_insensitive_map[(unsigned char)*str1] < rfc_case_insensitive_map[(unsigned char)*str2])
return -1;
if(*str1 == 0 || *str2 == 0)
const char* irc::irc_char_traits::find(const char* s1, int n, char c)
{
- while(n-- > 0 && lowermap[(unsigned char)*s1] != lowermap[(unsigned char)c])
+ while(n-- > 0 && rfc_case_insensitive_map[(unsigned char)*s1] != rfc_case_insensitive_map[(unsigned char)c])
s1++;
return s1;
}
irc::stringjoiner::stringjoiner(const std::string &seperator, const std::vector<std::string> &sequence, int begin, int end)
{
+ if (end < begin)
+ throw "stringjoiner logic error, this causes problems.";
+
for (int v = begin; v < end; v++)
joined.append(sequence[v]).append(seperator);
joined.append(sequence[end]);
irc::stringjoiner::stringjoiner(const std::string &seperator, const std::deque<std::string> &sequence, int begin, int end)
{
+ if (end < begin)
+ throw "stringjoiner logic error, this causes problems.";
+
for (int v = begin; v < end; v++)
joined.append(sequence[v]).append(seperator);
joined.append(sequence[end]);
irc::stringjoiner::stringjoiner(const std::string &seperator, const char* const* sequence, int begin, int end)
{
+ if (end < begin)
+ throw "stringjoiner logic error, this causes problems.";
+
for (int v = begin; v < end; v++)
joined.append(sequence[v]).append(seperator);
joined.append(sequence[end]);
}
}
-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;
-}
-