1 files changed, 0 insertions, 251 deletions
diff --git a/src/alloc/mem_pool/mem_pool.cpp b/src/alloc/mem_pool/mem_pool.cpp
deleted file mode 100644
index 770622149..000000000
--- a/src/alloc/mem_pool/mem_pool.cpp
+++ /dev/null
@@ -1,251 +0,0 @@
-/*
-* Pooling Allocator
-* (C) 1999-2008 Jack Lloyd
-*     2005 Matthew Gregan
-*     2005-2006 Matt Johnston
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/internal/mem_pool.h>
-#include <botan/internal/rounding.h>
-#include <botan/mem_ops.h>
-#include <algorithm>
-#include <exception>
-
-namespace Botan {
-
-/*
-* Memory_Block Constructor
-*/
-Pooling_Allocator::Memory_Block::Memory_Block(void* buf)
-   {
-   buffer = static_cast<byte*>(buf);
-   bitmap = 0;
-   buffer_end = buffer + (BLOCK_SIZE * BITMAP_SIZE);
-   }
-
-/*
-* See if ptr is contained by this block
-*/
-bool Pooling_Allocator::Memory_Block::contains(void* ptr,
-                                               size_t length) const
-   {
-   return ((buffer <= ptr) &&
-           (buffer_end >= static_cast<byte*>(ptr) + length * BLOCK_SIZE));
-   }
-
-/*
-* Allocate some memory, if possible
-*/
-byte* Pooling_Allocator::Memory_Block::alloc(size_t n)
-   {
-   if(n == 0 || n > BITMAP_SIZE)
-      return 0;
-
-   if(n == BITMAP_SIZE)
-      {
-      if(bitmap)
-         return nullptr;
-      else
-         {
-         bitmap = ~bitmap;
-         return buffer;
-         }
-      }
-
-   bitmap_type mask = (static_cast<bitmap_type>(1) << n) - 1;
-   size_t offset = 0;
-
-   while(bitmap & mask)
-      {
-      mask <<= 1;
-      ++offset;
-
-      if((bitmap & mask) == 0)
-         break;
-      if(mask >> 63)
-         break;
-      }
-
-   if(bitmap & mask)
-      return nullptr;
-
-   bitmap |= mask;
-   return buffer + offset * BLOCK_SIZE;
-   }
-
-/*
-* Mark this memory as free, if we own it
-*/
-void Pooling_Allocator::Memory_Block::free(void* ptr, size_t blocks)
-   {
-   clear_mem(static_cast<byte*>(ptr), blocks * BLOCK_SIZE);
-
-   const size_t offset = (static_cast<byte*>(ptr) - buffer) / BLOCK_SIZE;
-
-   if(offset == 0 && blocks == BITMAP_SIZE)
-      bitmap = ~bitmap;
-   else
-      {
-      for(size_t j = 0; j != blocks; ++j)
-         bitmap &= ~(static_cast<bitmap_type>(1) << (j+offset));
-      }
-   }
-
-/*
-* Pooling_Allocator Constructor
-*/
-Pooling_Allocator::Pooling_Allocator()
-   {
-   last_used = blocks.begin();
-   }
-
-/*
-* Pooling_Allocator Destructor
-*/
-Pooling_Allocator::~Pooling_Allocator()
-   {
-   if(blocks.size())
-      throw Invalid_State("Pooling_Allocator: Never released memory");
-   }
-
-/*
-* Free all remaining memory
-*/
-void Pooling_Allocator::destroy()
-   {
-   std::lock_guard<std::mutex> lock(mutex);
-
-   blocks.clear();
-
-   for(size_t j = 0; j != allocated.size(); ++j)
-      dealloc_block(allocated[j].first, allocated[j].second);
-   allocated.clear();
-   }
-
-/*
-* Allocation
-*/
-void* Pooling_Allocator::allocate(size_t n)
-   {
-   const size_t BITMAP_SIZE = Memory_Block::bitmap_size();
-   const size_t BLOCK_SIZE = Memory_Block::block_size();
-
-   std::lock_guard<std::mutex> lock(mutex);
-
-   if(n <= BITMAP_SIZE * BLOCK_SIZE)
-      {
-      const size_t block_no = round_up(n, BLOCK_SIZE) / BLOCK_SIZE;
-
-      byte* mem = allocate_blocks(block_no);
-      if(mem)
-         return mem;
-
-      get_more_core(BOTAN_MEM_POOL_CHUNK_SIZE);
-
-      mem = allocate_blocks(block_no);
-      if(mem)
-         return mem;
-
-      throw Memory_Exhaustion();
-      }
-
-   void* new_buf = alloc_block(n);
-   if(new_buf)
-      return new_buf;
-
-   throw Memory_Exhaustion();
-   }
-
-/*
-* Deallocation
-*/
-void Pooling_Allocator::deallocate(void* ptr, size_t n)
-   {
-   const size_t BITMAP_SIZE = Memory_Block::bitmap_size();
-   const size_t BLOCK_SIZE = Memory_Block::block_size();
-
-   if(ptr == nullptr && n == 0)
-      return;
-
-   std::lock_guard<std::mutex> lock(mutex);
-
-   if(n > BITMAP_SIZE * BLOCK_SIZE)
-      dealloc_block(ptr, n);
-   else
-      {
-      const size_t block_no = round_up(n, BLOCK_SIZE) / BLOCK_SIZE;
-
-      auto i = std::lower_bound(blocks.begin(), blocks.end(),
-                                Memory_Block(ptr));
-
-      if(i == blocks.end() || !i->contains(ptr, block_no))
-         throw Invalid_State("Pointer released to the wrong allocator");
-
-      i->free(ptr, block_no);
-      }
-   }
-
-/*
-* Try to get some memory from an existing block
-*/
-byte* Pooling_Allocator::allocate_blocks(size_t n)
-   {
-   if(blocks.empty())
-      return nullptr;
-
-   auto i = last_used;
-
-   do
-      {
-      byte* mem = i->alloc(n);
-      if(mem)
-         {
-         last_used = i;
-         return mem;
-         }
-
-      ++i;
-      if(i == blocks.end())
-         i = blocks.begin();
-      }
-   while(i != last_used);
-
-   return nullptr;
-   }
-
-/*
-* Allocate more memory for the pool
-*/
-void Pooling_Allocator::get_more_core(size_t in_bytes)
-   {
-   const size_t BITMAP_SIZE = Memory_Block::bitmap_size();
-   const size_t BLOCK_SIZE = Memory_Block::block_size();
-
-   const size_t TOTAL_BLOCK_SIZE = BLOCK_SIZE * BITMAP_SIZE;
-
-   // upper bound on allocation is 1 MiB
-   in_bytes = std::min<size_t>(in_bytes, 1024 * 1024);
-
-   const size_t in_blocks = round_up(in_bytes, BLOCK_SIZE) / TOTAL_BLOCK_SIZE;
-   const size_t to_allocate = in_blocks * TOTAL_BLOCK_SIZE;
-
-   void* ptr = alloc_block(to_allocate);
-   if(ptr == nullptr)
-      throw Memory_Exhaustion();
-
-   allocated.push_back(std::make_pair(ptr, to_allocate));
-
-   for(size_t j = 0; j != in_blocks; ++j)
-      {
-      byte* byte_ptr = static_cast<byte*>(ptr);
-      blocks.push_back(Memory_Block(byte_ptr + j * TOTAL_BLOCK_SIZE));
-      }
-
-   std::sort(blocks.begin(), blocks.end());
-   last_used = std::lower_bound(blocks.begin(), blocks.end(),
-                                Memory_Block(ptr));
-   }
-
-}