mirrors/Nim
1
0
Fork 0
mirror of https://github.com/nim-lang/Nim.git synced 2026-01-01 02:42:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

Coroutines realtime support

Browse Source
This commit is contained in:
Rokas Kupstys
2017-02-17 16:49:17 +02:00
parent 96c571dd96
commit d69b701dde
1 changed files with 36 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
lib/system/gc.nim
View File

@@ -67,6 +67,8 @@ type
prev: ptr GcStack
next: ptr GcStack
bottom: pointer
when withRealTime:
bottomSaved: pointer
pos: pointer
maxStackSize: int
@@ -929,19 +931,40 @@ when withRealTime:
collectCTBody(gch)
release(gch)
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 defined(nimCoroutines):
proc GC_step*(us: int, strongAdvice = false, stackSize = -1) {.noinline.} =
if stackSize >= 0:
var stackTop {.volatile.}: pointer
gch.activeStack.pos = addr(stackTop)
for stack in gch.stack.items():
stack.bottomSaved = stack.bottom
when stackIncreases:
stack.bottom = cast[pointer](
cast[ByteAddress](stack.pos) - sizeof(pointer) * 6 - stackSize)
else:
stack.bottom = cast[pointer](
cast[ByteAddress](stack.pos) + sizeof(pointer) * 6 + stackSize)
GC_step(gch, us, strongAdvice)
if stackSize >= 0:
for stack in gch.stack.items():
stack.bottom = stack.bottomSaved
else:
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() =