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char * ATIAlloc(DWORD size)
{
long i, index;
PtrRecord *ptrs;
HANDLE hdl;
char *tmpPtr = NULL;
if (PtrHandle) {
ptrs = (PtrRecord *)GlobalLock(PtrHandle);
index = -1;
for (i = 0; i < maxPtrs; i++) {
if (ptrs[i].emptyFlag) {
index = i;
break;
}
}
if (index < 0) {
GlobalUnlock(PtrHandle);
hdl = GlobalReAlloc(PtrHandle, (DWORD)((DWORD)sizeof(PtrRecord) * (DWORD)(maxPtrs + PTR_BLOCK)), GMEM_MOVEABLE | GMEM_ZEROINIT);
if (!hdl) {
return NULL;
}
PtrHandle = hdl;
ptrs = (PtrRecord *)GlobalLock(PtrHandle);
for (i = maxPtrs; i < maxPtrs + PTR_BLOCK; i++) {
ptrs[i].hdl = NULL;
ptrs[i].ptr = NULL;
ptrs[i].emptyFlag = TRUE;
}
index = maxPtrs;
maxPtrs += PTR_BLOCK;
}
_ALLOC(hdl, size);
if (hdl) {
ptrs[index].hdl = hdl;
ptrs[index].ptr = (char *)GlobalLock(hdl);
ptrs[index].emptyFlag = FALSE;
tmpPtr = ptrs[index].ptr;
}
GlobalUnlock(PtrHandle);
return (hdl) ? /*ptrs[index].ptr*/tmpPtr: NULL;
}
else {
return NULL;
}
}
char * ATIRealloc(char *ptr, DWORD size)
{
long i, index;
PtrRecord *ptrs;
HANDLE hdl;
char *tmpPtr = NULL;
HeapReAlloc()
GlobalReAlloc()
if (PtrHandle) {
ptrs = (PtrRecord *)GlobalLock(PtrHandle);
index = -1;
for (i = 0; i < maxPtrs; i++) {
if (!(ptrs[i].emptyFlag)) {
if (ptr == ptrs[i].ptr) {
index = i;
break;
}
}
}
if (index >= 0) {
hdl = ptrs[index].hdl;
GlobalUnlock(hdl);
hdl = GlobalReAlloc(hdl, (DWORD)size, GMEM_MOVEABLE | GMEM_ZEROINIT);
if (hdl) {
ptrs[index].hdl = hdl;
ptrs[index].ptr = (char *)GlobalLock(hdl);
tmpPtr = ptrs[index].ptr;
}
}
else {
hdl = NULL;
}
GlobalUnlock(PtrHandle);
return (hdl) ? tmpPtr/*ptrs[index].ptr*/: NULL;
}
else {
return NULL;
}
}
void ATIFree(char *ptr)
{
long i, index;
PtrRecord *ptrs;
HANDLE hdl;
if (PtrHandle) {
ptrs = (PtrRecord *)GlobalLock(PtrHandle);
index = -1;
for (i = 0; i < maxPtrs; i++) {
if (!(ptrs[i].emptyFlag)) {
if (ptr == ptrs[i].ptr) {
index = i;
break;
}
}
}
if (index >= 0) {
hdl = ptrs[index].hdl;
GlobalUnlock(hdl);
GlobalFree(hdl);
ptrs[index].hdl = NULL;
ptrs[index].ptr = NULL;
ptrs[index].emptyFlag = TRUE;
}
GlobalUnlock(PtrHandle);
}
}
BOOL ATICopy(char *to, char *from, DWORD size)
{
DWORD i;
if (to && from) {
for (i = 0; i < size; i++) {
to[i] = from[i];
}
return TRUE;
}
else {
return FALSE;
}
}