(C)

[freerainbowtables] / Common / rt api / MemoryPool.cpp

diff --git a/Common/rt api/MemoryPool.cpp b/Common/rt api/MemoryPool.cpp
index 1019b4f736212ce01b987e1d9fa729da48240a36..bde4ed0e10635e1b86b7d5b6f2be2613c10e92fd 100644 (file)
--- a/Common/rt api/MemoryPool.cpp
+++ b/Common/rt api/MemoryPool.cpp
@@ -1,8 +1,28 @@
 /*
-   RainbowCrack - a general propose implementation of Philippe Oechslin's faster time-memory trade-off technique.
-
-   Copyright (C) Zhu Shuanglei <shuanglei@hotmail.com>
-*/
+ * freerainbowtables is a project for generating, distributing, and using
+ * perfect rainbow tables
+ *
+ * Copyright (C) Zhu Shuanglei <shuanglei@hotmail.com>
+ * Copyright Martin Westergaard Jørgensen <martinwj2005@gmail.com>
+ * Copyright 2009, 2010 Daniël Niggebrugge <niggebrugge@fox-it.com>
+ * Copyright 2009, 2010, 2011 James Nobis <frt@quelrod.net>
+ * Copyright 2010 uroskn
+ *
+ * This file is part of freerainbowtables.
+ *
+ * freerainbowtables is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * freerainbowtables is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with freerainbowtables.  If not, see <http://www.gnu.org/licenses/>.
+ */
 
 #include "MemoryPool.h"
 #include "Public.h"
@@ -12,7 +32,7 @@ CMemoryPool::CMemoryPool()
        m_pMem = NULL;
        m_nMemSize = 0;
 
-       unsigned int nAvailPhys = GetAvailPhysMemorySize();
+       unsigned long nAvailPhys = GetAvailPhysMemorySize();
        if (nAvailPhys < 16 * 1024 * 1024)
        {
                nAvailPhys = 512 * 1024 * 1024; // There is atleast 256 mb available (Some Linux distros returns a really low GetAvailPhysMemorySize()
@@ -27,13 +47,16 @@ CMemoryPool::~CMemoryPool()
 {
        if (m_pMem != NULL)
        {
-               delete m_pMem;
+#ifdef _MEMORYDEBUG
+               printf("Freeing %i bytes of memory\n", m_nMemSize);
+#endif 
+               delete [] m_pMem;
                m_pMem = NULL;
                m_nMemSize = 0;
        }
 }
 
-unsigned char* CMemoryPool::Allocate(unsigned int nFileLen, unsigned int& nAllocatedSize)
+unsigned char* CMemoryPool::Allocate(unsigned int nFileLen, uint64& nAllocatedSize)
 {
        if (nFileLen <= m_nMemSize)
        {
@@ -50,28 +73,43 @@ unsigned char* CMemoryPool::Allocate(unsigned int nFileLen, unsigned int& nAlloc
        // Free existing memory
        if (m_pMem != NULL)
        {
-               delete m_pMem;
+#ifdef _MEMORYDEBUG
+               printf("Freeing %i bytes of memory\n", m_nMemSize);
+#endif 
+               delete [] m_pMem;
                m_pMem = NULL;
                m_nMemSize = 0;
        }
 
        // Allocate new memory
        //printf("allocating %u bytes memory\n", nTargetSize);
-//     m_pMem = new unsigned char[nTargetSize];
-m_pMem = new (nothrow) unsigned char[nTargetSize];
-while (m_pMem == NULL && nTargetSize >= 512 * 1024 * 1024 )
-{
-   nTargetSize -= 16 * 1024 * 1024;
-   m_pMem = new (nothrow) unsigned char[nTargetSize];
-}
+#ifdef _MEMORYDEBUG
+               printf("Allocating %i bytes of memory - ", nTargetSize);
+#endif 
+
+       m_pMem = new (nothrow) unsigned char[nTargetSize];
+       while (m_pMem == NULL && nTargetSize >= 512 * 1024 * 1024 )
+       {
+#ifdef _MEMORYDEBUG
+               printf("failed!\n");
+               printf("Allocating %i bytes of memory (backup) - ", nTargetSize);
+#endif 
+               nTargetSize -= 16 * 1024 * 1024;
+               m_pMem = new (nothrow) unsigned char[nTargetSize];
+       }
+
        if (m_pMem != NULL)
        {
+#ifdef _MEMORYDEBUG
+               printf("success!\n");
+#endif
                m_nMemSize = nTargetSize;
                nAllocatedSize = nTargetSize;
                return m_pMem;
        }
        else
        {
+               m_nMemSize = 0;
                nAllocatedSize = 0;
                return NULL;
        }