object.cxx

pwlib源码库

    if (memcmp((char *)(obj+1)+obj->size, obj->GuardBytes, sizeof(obj->guard)) != 0) {
      if (error != NULL)
        *error << "Overrun at " << (obj+1) << '[' << obj->size << "] #" << obj->request << endl;
      return FALSE;
    }

    obj = obj->next;
  }

#if defined(_WIN32) && defined(_DEBUG)
  if (!_CrtCheckMemory()) {
    if (error != NULL)
      *error << "Heap failed MSVCRT validation!" << endl;
    return FALSE;
  }
#endif
  if (error != NULL)
    *error << "Heap passed validation." << endl;
  return TRUE;
}


BOOL PMemoryHeap::SetIgnoreAllocations(BOOL ignore)
{
  Wrapper mem;

  BOOL ignoreAllocations = (mem->flags&NoLeakPrint) != 0;

  if (ignore)
    mem->flags |= NoLeakPrint;
  else
    mem->flags &= ~NoLeakPrint;

  return ignoreAllocations;
}


void PMemoryHeap::DumpStatistics()
{
  Wrapper mem;
  if (mem->leakDumpStream != NULL)
    mem->InternalDumpStatistics(*mem->leakDumpStream);
}


void PMemoryHeap::DumpStatistics(ostream & strm)
{
  Wrapper mem;
  mem->InternalDumpStatistics(strm);
}


void PMemoryHeap::InternalDumpStatistics(ostream & strm)
{
  strm << "\nCurrent memory usage: " << currentMemoryUsage << " bytes";
  if (currentMemoryUsage > 2048)
    strm << ", " << (currentMemoryUsage+1023)/1024 << "kb";
  if (currentMemoryUsage > 2097152)
    strm << ", " << (currentMemoryUsage+1048575)/1048576 << "Mb";

  strm << ".\nCurrent objects count: " << currentObjects
       << "\nPeak memory usage: " << peakMemoryUsage << " bytes";
  if (peakMemoryUsage > 2048)
    strm << ", " << (peakMemoryUsage+1023)/1024 << "kb";
  if (peakMemoryUsage > 2097152)
    strm << ", " << (peakMemoryUsage+1048575)/1048576 << "Mb";

  strm << ".\nPeak objects created: " << peakObjects
       << "\nTotal objects created: " << totalObjects
       << "\nNext allocation request: " << allocationRequest
       << '\n' << endl;
}


DWORD PMemoryHeap::GetAllocationRequest()
{
  Wrapper mem;
  return mem->allocationRequest;
}


void PMemoryHeap::SetAllocationBreakpoint(DWORD point)
{
  allocationBreakpoint = point;
}


void PMemoryHeap::DumpObjectsSince(DWORD objectNumber)
{
  Wrapper mem;
  if (mem->leakDumpStream != NULL)
    mem->InternalDumpObjectsSince(objectNumber, *mem->leakDumpStream);
}


void PMemoryHeap::DumpObjectsSince(DWORD objectNumber, ostream & strm)
{
  Wrapper mem;
  mem->InternalDumpObjectsSince(objectNumber, strm);
}


void PMemoryHeap::InternalDumpObjectsSince(DWORD objectNumber, ostream & strm)
{
  BOOL first = TRUE;
  for (Header * obj = listHead; obj != NULL; obj = obj->next) {
    if (obj->request < objectNumber || (obj->flags&NoLeakPrint) != 0)
      continue;

    if (first && isDestroyed) {
      *leakDumpStream << "\nMemory leaks detected, press Enter to display . . ." << flush;
#if !defined(_WIN32)
      cin.get();
#endif
      first = FALSE;
    }

    BYTE * data = (BYTE *)&obj[1];

    if (obj->fileName != NULL)
      strm << obj->fileName << '(' << obj->line << ") : ";

    strm << '#' << obj->request << ' ' << (void *)data << " [" << obj->size << "] ";

    if (obj->className != NULL)
      strm << '"' << obj->className << "\" ";

    strm << '\n' << hex << setfill('0') << PBYTEArray(data, PMIN(16, obj->size), FALSE)
                 << dec << setfill(' ') << endl;
  }
}


#else // PMEMORY_CHECK

#ifndef P_VXWORKS

/*
#if (__GNUC__ >= 3) || ((__GNUC__ == 2)&&(__GNUC_MINOR__ >= 95)) //2.95.X & 3.X
void * operator new[](size_t nSize) throw (std::bad_alloc)
#else
void * operator new[](size_t nSize)
#endif
{
  return malloc(nSize);
}

#if (__GNUC__ >= 3) || ((__GNUC__ == 2)&&(__GNUC_MINOR__ >= 95)) //2.95.X & 3.X
void operator delete[](void * ptr) throw ()
#else
void operator delete[](void * ptr)
#endif
{
  free(ptr);
}
*/

#endif // !P_VXWORKS

#endif // PMEMORY_CHECK




///////////////////////////////////////////////////////////////////////////////
// Large integer support

#ifdef P_NEEDS_INT64

void PInt64__::Add(const PInt64__ & v)
{
  unsigned long old = low;
  high += v.high;
  low += v.low;
  if (low < old)
    high++;
}


void PInt64__::Sub(const PInt64__ & v)
{
  unsigned long old = low;
  high -= v.high;
  low -= v.low;
  if (low > old)
    high--;
}


void PInt64__::Mul(const PInt64__ & v)
{
  DWORD p1 = (low&0xffff)*(v.low&0xffff);
  DWORD p2 = (low >> 16)*(v.low >> 16);
  DWORD p3 = (high&0xffff)*(v.high&0xffff);
  DWORD p4 = (high >> 16)*(v.high >> 16);
  low = p1 + (p2 << 16);
  high = (p2 >> 16) + p3 + (p4 << 16);
}


void PInt64__::Div(const PInt64__ & v)
{
  long double dividend = high;
  dividend *=  4294967296.0;
  dividend += low;
  long double divisor = high;
  divisor *=  4294967296.0;
  divisor += low;
  long double quotient = dividend/divisor;
  low = quotient;
  high = quotient/4294967296.0;
}


void PInt64__::Mod(const PInt64__ & v)
{
  PInt64__ t = *this;
  t.Div(v);
  t.Mul(t);
  Sub(t);
}


void PInt64__::ShiftLeft(int bits)
{
  if (bits >= 32) {
    high = low << (bits - 32);
    low = 0;
  }
  else {
    high <<= bits;
    high |= low >> (32 - bits);
    low <<= bits;
  }
}


void PInt64__::ShiftRight(int bits)
{
  if (bits >= 32) {
    low = high >> (bits - 32);
    high = 0;
  }
  else {
    low >>= bits;
    low |= high << (32 - bits);
    high >>= bits;
  }
}


BOOL PInt64::Lt(const PInt64 & v) const
{
  if ((long)high < (long)v.high)
    return TRUE;
  if ((long)high > (long)v.high)
    return FALSE;
  if ((long)high < 0)
    return (long)low > (long)v.low;
  return (long)low < (long)v.low;
}


BOOL PInt64::Gt(const PInt64 & v) const
{
  if ((long)high > (long)v.high)
    return TRUE;
  if ((long)high < (long)v.high)
    return FALSE;
  if ((long)high < 0)
    return (long)low < (long)v.low;
  return (long)low > (long)v.low;
}


BOOL PUInt64::Lt(const PUInt64 & v) const
{
  if (high < v.high)
    return TRUE;
  if (high > v.high)
    return FALSE;
  return low < high;
}


BOOL PUInt64::Gt(const PUInt64 & v) const
{
  if (high > v.high)
    return TRUE;
  if (high < v.high)
    return FALSE;
  return low > high;
}


static void Out64(ostream & stream, PUInt64 num)
{
  char buf[25];
  char * p = &buf[sizeof(buf)];
  *--p = '\0';

  switch (stream.flags()&ios::basefield) {
    case ios::oct :
      while (num != 0) {
        *--p = (num&7) + '0';
        num >>= 3;
      }
      break;

    case ios::hex :
      while (num != 0) {
        *--p = (num&15) + '0';
        if (*p > '9')
          *p += 7;
        num >>= 4;
      }
      break;

    default :
      while (num != 0) {
        *--p = num%10 + '0';
        num /= 10;
      }
  }

  if (*p == '\0')
    *--p = '0';

  stream << p;
}


ostream & operator<<(ostream & stream, const PInt64 & v)
{
  if (v >= 0)
    Out64(stream, v);
  else {
    int w = stream.width();
    stream.put('-');
    if (w > 0)
      stream.width(w-1);
    Out64(stream, -v);
  }

  return stream;
}


ostream & operator<<(ostream & stream, const PUInt64 & v)
{
  Out64(stream, v);
  return stream;
}


static PUInt64 Inp64(istream & stream)
{
  int base;
  switch (stream.flags()&ios::basefield) {
    case ios::oct :
      base = 8;
      break;
    case ios::hex :
      base = 16;
      break;
    default :
      base = 10;
  }

  if (isspace(stream.peek()))
    stream.get();

  PInt64 num = 0;
  while (isxdigit(stream.peek())) {
    int c = stream.get() - '0';
    if (c > 9)
      c -= 7;
    if (c > 9)
      c -= 32;
    num = num*base + c;
  }

  return num;
}


istream & operator>>(istream & stream, PInt64 & v)
{
  if (isspace(stream.peek()))
    stream.get();

  switch (stream.peek()) {
    case '-' :
      stream.ignore();
      v = -(PInt64)Inp64(stream);
      break;
    case '+' :
      stream.ignore();
    default :
      v = (PInt64)Inp64(stream);
  }

  return stream;
}


istream & operator>>(istream & stream, PUInt64 & v)
{
  v = Inp64(stream);
  return stream;
}


#endif


#ifdef P_TORNADO

// the library provided with Tornado 2.0 does not contain implementation 
// for the functions defined below, therefor the own implementation

ostream & ostream::operator<<(PInt64 v)
{
  return *this << (long)(v >> 32) << (long)(v & 0xFFFFFFFF);
}


ostream & ostream::operator<<(PUInt64 v)
{
  return *this << (long)(v >> 32) << (long)(v & 0xFFFFFFFF);
}

istream & istream::operator>>(PInt64 & v)
{
  return *this >> (long)(v >> 32) >> (long)(v & 0xFFFFFFFF);
}


istream & istream::operator>>(PUInt64 & v)
{
  return *this >> (long)(v >> 32) >> (long)(v & 0xFFFFFFFF);
}

#endif // P_TORNADO


// End Of File ///////////////////////////////////////////////////////////////