mirrors/Nim
1
0
Fork 0
mirror of https://github.com/nim-lang/Nim.git synced 2026-04-25 08:43:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #4142 from endragor/gc-allow-skip-stack

Browse Source 
Added stackSize parameter to GC_step
This commit is contained in:
Andreas Rumpf
2016-05-12 15:00:08 +02:00
parent 4b13484025 0dc35b7841
commit 6e6c15081d
3 changed files with 34 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
lib/system/gc.nim
View File

@@ -980,7 +980,19 @@ when withRealTime:
collectCTBody(gch)
release(gch)
proc GC_step*(us: int, strongAdvice = false) = GC_step(gch, us, strongAdvice)
proc GC_step*(us: int, strongAdvice = false, stackSize = -1) {.noinline.} =
var stackTop {.volatile.}: pointer
let prevStackBottom = gch.stackBottom
if stackSize >= 0:
stackTop = addr(stackTop)
when stackIncreases:
gch.stackBottom = cast[pointer](
cast[ByteAddress](stackTop) - sizeof(pointer) * 6 - stackSize)
else:
gch.stackBottom = cast[pointer](
cast[ByteAddress](stackTop) + sizeof(pointer) * 6 + stackSize)
GC_step(gch, us, strongAdvice)
gch.stackBottom = prevStackBottom
when not defined(useNimRtl):
proc GC_disable() =

14
lib/system/gc2.nim
View File

@@ -956,7 +956,19 @@ when withRealTime:
strongAdvice:
collectCTBody(gch)
proc GC_step*(us: int, strongAdvice = false) = GC_step(gch, us, strongAdvice)
proc GC_step*(us: int, strongAdvice = false, stackSize = -1) {.noinline.} =
var stackTop {.volatile.}: pointer
let prevStackBottom = gch.stackBottom
if stackSize >= 0:
stackTop = addr(stackTop)
when stackIncreases:
gch.stackBottom = cast[pointer](
cast[ByteAddress](stackTop) - sizeof(pointer) * 6 - stackSize)
else:
gch.stackBottom = cast[pointer](
cast[ByteAddress](stackTop) + sizeof(pointer) * 6 + stackSize)
GC_step(gch, us, strongAdvice)
gch.stackBottom = prevStackBottom
when not defined(useNimRtl):
proc GC_disable() =