int physical_memorymgr_firstFreeAlignedBlockArray(size_t size, size_t alignment)
{
if (size==0)
return -1;
if (size==1)
return physical_memorymgr_firstFreeAlignedBlock(alignment);
for (uint32_t i = 0; i < physical_memorymgr_get_block_count(); i++)
if (physical_memorymgr_memory_map[i] != 0xffffffff)
for (int j = 0; j < 32; j++)
{ /* Test each bit in the dword */
int bit = 1<<j;
if (!(physical_memorymgr_memory_map[i] & bit) && ((i*32 + j + 1) % alignment) == 0)
{
int startingBit = i*32;
startingBit += bit; /* Get the free bit in the dword at index i */
uint32_t free = 0; /* Loop through each bit to see if its enough space */
for (uint32_t count = 0; count <= size; count++)
{
if (!IsPageInUse(startingBit+count))
free++; /* This is not in use */
if (free == size)
return i*32 + j; /* free count == size needed; return index */
}
}
}
return -1;
}
int GetFillFactor(BYTE by, int itemsPerByte)
{
if (itemsPerByte > 1) {
return by & 0x3F; // 6 low-order bits
}
else {
if (IsPageInUse(by))
return (64-1);
else
return 0;
}
}
