X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=Common%2Frt%20api%2FMemoryPool.cpp;h=bde4ed0e10635e1b86b7d5b6f2be2613c10e92fd;hb=47c71901e7a97c226c8f1df749e3606d43656f32;hp=1019b4f736212ce01b987e1d9fa729da48240a36;hpb=bcfd4a8e2d07b3a0fce0bc8e471d8562b142b7e0;p=freerainbowtables diff --git a/Common/rt api/MemoryPool.cpp b/Common/rt api/MemoryPool.cpp index 1019b4f..bde4ed0 100644 --- 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 -*/ + * freerainbowtables is a project for generating, distributing, and using + * perfect rainbow tables + * + * Copyright (C) Zhu Shuanglei + * Copyright Martin Westergaard Jørgensen + * Copyright 2009, 2010 Daniël Niggebrugge + * Copyright 2009, 2010, 2011 James Nobis + * 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 . + */ #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; }