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allowed vmprim.alloc_heap() to create a bigger heap than requested.

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enhanced the standard implementation(std.c) to attempt HUGETLB if the requested heap size is over 1/2 of the huge page size
This commit is contained in:
hyung-hwan
2021-02-09 14:54:54 +00:00
parent aa8f8fac2d
commit 1d0c7a8bbc
10 changed files with 98 additions and 78 deletions
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14
lib/heap.c
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@ -44,8 +44,10 @@ static void xma_free (hcl_mmgr_t* mmgr, void* ptr)
hcl_heap_t* hcl_makeheap (hcl_t* hcl, hcl_oow_t size)
{
hcl_heap_t* heap;
hcl_oow_t alloc_size;
heap = (hcl_heap_t*)hcl->vmprim.alloc_heap(hcl, HCL_SIZEOF(*heap) + size);
alloc_size = HCL_SIZEOF(*heap) + size;
heap = (hcl_heap_t*)hcl->vmprim.alloc_heap(hcl, &alloc_size);
if (HCL_UNLIKELY(!heap))
{
const hcl_ooch_t* oldmsg = hcl_backuperrmsg(hcl);
@ -53,11 +55,13 @@ hcl_heap_t* hcl_makeheap (hcl_t* hcl, hcl_oow_t size)
return HCL_NULL;
}
HCL_MEMSET (heap, 0, HCL_SIZEOF(*heap) + size);
/* the vmprim.alloc_heap() function is allowed to create a bigger heap than the requested size.
* if the created heap is bigger than requested, the heap will be utilized in full. */
HCL_ASSERT (hcl, alloc_size >= HCL_SIZEOF(*heap) + size);
HCL_MEMSET (heap, 0, alloc_size);
heap->base = (hcl_uint8_t*)(heap + 1);
heap->size = size;
heap->size = alloc_size;
if (size <= 0)
{
@ -71,7 +75,7 @@ hcl_heap_t* hcl_makeheap (hcl_t* hcl, hcl_oow_t size)
if (HCL_UNLIKELY(!heap->xma))
{
hcl->vmprim.free_heap (hcl, heap);
hcl_seterrbfmt (hcl, HCL_ESYSMEM, "unable to allocate xma");
hcl_seterrbfmt (hcl, HCL_ESYSMEM, "unable to allocate a memory manager over a heap");
return HCL_NULL;
}