/*! * \copy *     Copyright (c)  2013, Cisco Systems *     All rights reserved. * *     Redistribution and use in source and binary forms, with or without *     modification, are permitted provided that the following conditions *     are met: * *        * Redistributions of source code must retain the above copyright *          notice, this list of conditions and the following disclaimer. * *        * Redistributions in binary form must reproduce the above copyright *          notice, this list of conditions and the following disclaimer in *          the documentation and/or other materials provided with the *          distribution. * *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT *     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS *     FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE *     COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, *     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, *     BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER *     CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT *     LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN *     ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE *     POSSIBILITY OF SUCH DAMAGE. * */ #include <stdlib.h>#include <string.h>#include "memory_align.h"#include "macros.h" namespace WelsCommon { #ifdef MEMORY_CHECKstatic FILE*    fpMemChkPoint;static uint32_t nCountRequestNum;static int32_t  iMemoryLength;#endif  CMemoryAlign::CMemoryAlign (const uint32_t kuiCacheLineSize)#ifdef MEMORY_MONITOR  : m_nMemoryUsageInBytes (0)#endif//MEMORY_MONITOR{  if ((kuiCacheLineSize == 0) || (kuiCacheLineSize & 0x0f))    m_nCacheLineSize = 0x10;  else    m_nCacheLineSize = kuiCacheLineSize;} CMemoryAlign::~CMemoryAlign() {#ifdef MEMORY_MONITOR  assert (m_nMemoryUsageInBytes == 0);#endif//MEMORY_MONITOR} void* WelsMalloc (const uint32_t kuiSize, const char* kpTag, const uint32_t kiAlign) {  const int32_t kiSizeOfVoidPointer     = sizeof (void**);  const int32_t kiSizeOfInt             = sizeof (int32_t);  const int32_t kiAlignedBytes          = kiAlign - 1;  const int32_t kiTrialRequestedSize    = kuiSize + kiAlignedBytes + kiSizeOfVoidPointer + kiSizeOfInt;  const int32_t kiActualRequestedSize   = kiTrialRequestedSize;  const uint32_t kiPayloadSize          = kuiSize;   uint8_t* pBuf = (uint8_t*) malloc (kiActualRequestedSize);#ifdef MEMORY_CHECK  if (fpMemChkPoint == NULL) {    fpMemChkPoint    = fopen ("./enc_mem_check_point.txt",  "at+");    nCountRequestNum = 0;  }   if (fpMemChkPoint != NULL) {    if (kpTag != NULL)      fprintf (fpMemChkPoint, "WelsMalloc(), 0x%x : actual uiSize:\t%d\tbytes, input uiSize: %d bytes, %d - %s\n",               (void*)pBuf, kiActualRequestedSize, kuiSize, nCountRequestNum++, kpTag);    else      fprintf (fpMemChkPoint, "WelsMalloc(), 0x%x : actual uiSize:\t%d\tbytes, input uiSize: %d bytes, %d \n", (void*)pBuf,               kiActualRequestedSize, kuiSize, nCountRequestNum++);    fflush (fpMemChkPoint);  }#endif  uint8_t* pAlignedBuffer;   if (NULL == pBuf)    return NULL;   pAlignedBuffer = pBuf + kiAlignedBytes + kiSizeOfVoidPointer + kiSizeOfInt;  pAlignedBuffer -= ((uintptr_t) pAlignedBuffer & kiAlignedBytes);  * ((void**) (pAlignedBuffer - kiSizeOfVoidPointer)) = pBuf;  * ((int32_t*) (pAlignedBuffer - (kiSizeOfVoidPointer + kiSizeOfInt))) = kiPayloadSize;   return pAlignedBuffer;} void WelsFree (void* pPointer, const char* kpTag) {  if (pPointer) {#ifdef MEMORY_CHECK    if (fpMemChkPoint != NULL) {      if (kpTag != NULL)        fprintf (fpMemChkPoint, "WelsFree(), 0x%x - %s: \t%d\t bytes \n", (void*) (* (((void**) pPointer) - 1)), kpTag,                 iMemoryLength);      else        fprintf (fpMemChkPoint, "WelsFree(), 0x%x \n", (void*) (* (((void**) pPointer) - 1)));      fflush (fpMemChkPoint);    }#endif    free (* (((void**) pPointer) - 1));  }} void* CMemoryAlign::WelsMallocz (const uint32_t kuiSize, const char* kpTag) {  void* pPointer = WelsMalloc (kuiSize, kpTag);  if (NULL == pPointer) {    return NULL;  }  // zero memory  memset (pPointer, 0, kuiSize);   return pPointer;} void* CMemoryAlign::WelsMalloc (const uint32_t kuiSize, const char* kpTag) {  void* pPointer = WelsCommon::WelsMalloc (kuiSize, kpTag, m_nCacheLineSize);#ifdef MEMORY_MONITOR  if (pPointer != NULL) {    iMemoryLength = * ((int32_t*) ((uint8_t*)pPointer - sizeof (void**) - sizeof (                                        int32_t))) + m_nCacheLineSize - 1 + sizeof (void**) + sizeof (int32_t);    m_nMemoryUsageInBytes += iMemoryLength;  }#endif//MEMORY_MONITOR  return pPointer;} void CMemoryAlign::WelsFree (void* pPointer, const char* kpTag) {  if (pPointer) {#ifdef MEMORY_MONITOR    iMemoryLength = * ((int32_t*) ((uint8_t*)pPointer - sizeof (void**) - sizeof (                                        int32_t))) + m_nCacheLineSize - 1 + sizeof (void**) + sizeof (int32_t);    m_nMemoryUsageInBytes -= iMemoryLength;#endif//MEMORY_MONITOR  }  WelsCommon::WelsFree (pPointer, kpTag);} void* WelsMallocz (const uint32_t kuiSize, const char* kpTag) {  void* pPointer = WelsMalloc (kuiSize, kpTag, 16);  if (NULL == pPointer) {    return NULL;  }  memset (pPointer, 0, kuiSize);  return pPointer;} const uint32_t CMemoryAlign::WelsGetCacheLineSize() const {  return m_nCacheLineSize;} const uint32_t CMemoryAlign::WelsGetMemoryUsage() const {  return m_nMemoryUsageInBytes;} } // end of namespace WelsCommon