minor improvement to the barrier implementation

compiler/platform.nim

@@ -1,6 +1,6 @@
 #
 #
-#           The Nimrod Compiler
+#           The Nim Compiler
 #        (c) Copyright 2012 Andreas Rumpf
 #
 #    See the file "copying.txt", included in this

lib/pure/concurrency/threadpool.nim

@@ -65,7 +65,9 @@ proc barrierEnter(b: ptr Barrier) {.compilerProc, inline.} =
 proc barrierLeave(b: ptr Barrier) {.compilerProc, inline.} =
   atomicInc b.left
   when not defined(x86): fence()
-  if b.interest and b.left == b.entered: signal(b.cv)
+  # We may not have seen the final value of b.entered yet,
+  # so we need to check for >= instead of ==.
+  if b.interest and b.left >= b.entered: signal(b.cv)
 
 proc openBarrier(b: ptr Barrier) {.compilerProc, inline.} =
   b.entered = 0

todo.txt

@@ -3,7 +3,10 @@ version 0.10
 
   Repetition renders the ridiculous reasonable.
 
-- introduce ``--experimental`` switch
+- document 'converter'
+- document the tables module better
+
+
 - c2nim depends on the compiler
 - make nimble part of the distribution
 - split idetools into separate tool