MemoryCount.cc

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#include "pedigree/kernel/Log.h"
#include "pedigree/kernel/processor/PhysicalMemoryManager.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/MemoryCount.h"
 
MemoryCount::MemoryCount(const char* context) {
  m_StartPages = PhysicalMemoryManager::instance().freePageCount();
  m_EndPages = 0;
  m_Context = context;
}
 
MemoryCount::~MemoryCount() {
  m_EndPages = PhysicalMemoryManager::instance().freePageCount();
  ssize_t diff = static_cast<ssize_t>(m_StartPages - m_EndPages);
  NOTICE("KERNELELF: Page difference while executing " << m_Context << ": " << Dec << diff << Hex);
  NOTICE("KERNELELF:   -> difference is "
         << Dec << ((diff * PhysicalMemoryManager::getPageSize()) / 1024) << Hex << "K");
}