46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
CHeapCtrl *HeapCtrlInit(CHeapCtrl *hc=NULL,CTask *task=NULL,CBlkPool *bp)
|
|
{//Called by $LK,"Adam Task",A="FF:::/Kernel/KStart.CPP,CHeapCtrl.bp"$.
|
|
if (!hc)
|
|
hc=ACAlloc(sizeof(CHeapCtrl));
|
|
hc->hc_signature=HEAP_CTRL_SIGNATURE_VAL;
|
|
hc->mem_task=task;
|
|
hc->bp=bp;
|
|
QueInit(&hc->next_mem_blk);
|
|
hc->next_um=hc->last_um=(&hc->next_um)(U8 *)-offset(CMemUsed.next);
|
|
return hc;
|
|
}
|
|
|
|
CHeapCtrl *HeapCtrlBPInit(CBlkPool *bp,I64 pages512)
|
|
{//Make mem chunk into HeapCtrl and BlkPool.
|
|
I64 num;
|
|
CMemBlk *m;
|
|
CHeapCtrl *hc;
|
|
MemSet(bp,0,sizeof(CBlkPool)+sizeof(CHeapCtrl));
|
|
hc=HeapCtrlInit(bp(U8 *)+sizeof(CBlkPool),,bp);
|
|
m=(bp(U8 *)+sizeof(CBlkPool)+sizeof(CHeapCtrl)+PAGE_SIZE-1)&~(PAGE_SIZE-1);
|
|
num=(bp(U8 *)+pages512<<PAGE_BITS-m(U8 *))>>PAGE_BITS;
|
|
bp->alloced_u8s=(pages512-num)<<PAGE_BITS;
|
|
BlkPoolAdd(bp,m,num);
|
|
return hc;
|
|
}
|
|
|
|
U0 HeapCtrlDel(CHeapCtrl *hc)
|
|
{//Free all blks alloced to a HeapCtrl.
|
|
CMemBlk *m,*m1;
|
|
if (hc) {
|
|
PUSHFD
|
|
CLI
|
|
while (LBts(&hc->locked_flags,HClf_LOCKED))
|
|
PAUSE
|
|
m=hc->next_mem_blk;
|
|
while (m!=&hc->next_mem_blk) {
|
|
m1=m->next;
|
|
Mem512TaskFree(m,hc);
|
|
m=m1;
|
|
}
|
|
LBtr(&hc->locked_flags,HClf_LOCKED);
|
|
POPFD
|
|
Free(hc);
|
|
}
|
|
}
|