// Set the string's storage capacity to the designated value.
size_t UtlString::capacity(size_t N)
{
#ifdef _VXWORKS
size_t maxFreeBlockSize = 0;
#endif
char* newData = 0;
if(mCapacity < N && N > 0)
{
if(mCapacity + UTLSTRING_MIN_INCREMENT > N)
{
N = mCapacity + UTLSTRING_MIN_INCREMENT;
}
#ifdef _VXWORKS
if (N > CHECK_BLOCK_THRESHOLD)
{
maxFreeBlockSize = FindMaxFreeBlock();
// We are not going over the largest block size then try to
// allocate otherwise we will return NULL, and the size returned
// will be zero!
if (N < maxFreeBlockSize)
{
newData = new char[N];
}
}
else
{
newData = new char[N];
}
#else
//for all other OS's lets assume it really returns NULL and not crashes
newData = new char[N];
#endif
if (newData)
{
if(mSize > 0 && mpData)
{
memcpy(newData, mpData, mSize);
}
else
{
newData[0] = '\000';
}
if(mpData && mpData != mBuiltIn)
{
delete[] mpData;
}
mpData = newData;
mCapacity = N;
}
}
return(mCapacity);
}
// Set the string's storage capacity to the designated value.
size_t UtlString::capacity(size_t N)
{
#ifdef _VXWORKS
size_t maxFreeBlockSize = 0;
#endif
size_t newSize = 0;
char* newData = 0;
if(mCapacity < N && N > 0)
{
if(mCapacity + UTLSTRING_MIN_INCREMENT > N)
{
N = mCapacity + UTLSTRING_MIN_INCREMENT;
}
#ifdef _VXWORKS
if (N > CHECK_BLOCK_THRESHOLD)
{
maxFreeBlockSize = FindMaxFreeBlock();
// We are not going over the largest block size then try to
// allocate otherwise we will return NULL, and the size returned
// will be zero!
if (N < maxFreeBlockSize)
{
newData = new char[N];
}
}
else
{
newData = new char[N];
}
#else
//for all other OS's lets assume it really returns NULL and not crashes
newData = new char[N];
#endif
if (newData)
{
if(mSize > 0 && mpData)
{
memcpy(newData, mpData, mSize);
}
else
{
newData[0] = '\0';
}
if(mpData && mpData != mBuiltIn)
{
delete[] mpData;
}
mpData = newData;
newSize = mCapacity = N;
}
else
{
osPrintf("******** ERROR******* : UtlString::capacity failed (%d). Memory not allocated!\n", N);
#ifdef _VXWORKS
osPrintf("******** ERROR******* : Largest block = %d, requested size = %d\n",maxFreeBlockSize, N);
#endif
newSize = 0;
}
}
else
{
newSize = mCapacity;
}
return(newSize);
}
