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* keep same fixed block, also if we resize to a smaller size.

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git-svn-id: trunk@4313 -
This commit is contained in:
peter 2006-07-30 15:02:28 +00:00
parent dc9c5905bc
commit b3732f7215
1 changed files with 7 additions and 4 deletions
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11
rtl/inc/heap.inc
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@ -1156,10 +1156,13 @@ begin
begin
currsize := chunksize and fixedsizemask;
{ first check if the size fits in the fixed block range to prevent
"truncating" the size by the fixedsizemask }
if (size <= (maxblocksize - sizeof(tmemchunk_fixed_hdr))) and
((size+sizeof(tmemchunk_fixed_hdr)+(blocksize-1)) and sizemask =currsize ) then
{ 1. Resizing to smaller sizes will never allocate a new block. We just keep the current block. This
is needed for the expectations that resizing to a small block will not move the contents of
a memory block
2. For resizing to greater size first check if the size fits in the fixed block range to prevent
"truncating" the size by the fixedsizemask }
if ((size <= (maxblocksize - sizeof(tmemchunk_fixed_hdr))) and
((size+sizeof(tmemchunk_fixed_hdr)+(blocksize-1)) and sizemask<=currsize )) then
begin
systryresizemem:=true;
exit;