mirrors/Nim
1
0
Fork 0
mirror of https://github.com/nim-lang/Nim.git synced 2026-02-23 11:26:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

GC: growObj: revert to somewhat more efficient version

Browse Source
This commit is contained in:
Araq
2012-01-13 21:15:52 +01:00
parent 8ed3e295a3
commit 9460f7cc4e
1 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
lib/system/gc.nim
View File

@@ -465,14 +465,14 @@ proc growObj(old: pointer, newsize: int, gch: var TGcHeap): pointer =
sysAssert(ol.typ.kind in {tyString, tySequence}, "growObj: 2")
sysAssert(allocInv(gch.region), "growObj begin")
var res = cast[PCell](rawAlloc0(gch.region, newsize + sizeof(TCell)))
var res = cast[PCell](rawAlloc(gch.region, newsize + sizeof(TCell)))
var elemSize = 1
if ol.typ.kind != tyString: elemSize = ol.typ.base.size
var oldsize = cast[PGenericSeq](old).len*elemSize + GenericSeqSize
copyMem(res, ol, oldsize + sizeof(TCell))
#zeroMem(cast[pointer](cast[TAddress](res)+% oldsize +% sizeof(TCell)),
# newsize-oldsize)
zeroMem(cast[pointer](cast[TAddress](res)+% oldsize +% sizeof(TCell)),
newsize-oldsize)
sysAssert((cast[TAddress](res) and (MemAlign-1)) == 0, "growObj: 3")
sysAssert(res.refcount shr rcShift <=% 1, "growObj: 4")
#if res.refcount <% rcIncrement: