From d3a6418b0b4e15f8f9f2c14151f49040dff5958a Mon Sep 17 00:00:00 2001
From: Justin Ethier <justin.ethier@gmail.com>
Date: Mon, 9 Nov 2015 23:04:56 -0500
Subject: [PATCH] WIP

---
 gc.c                    | 49 +++++++++++++++++++++++------------------
 include/cyclone/types.h |  2 +-
 2 files changed, 29 insertions(+), 22 deletions(-)

diff --git a/gc.c b/gc.c
index 17fc7124..2c369457 100644
--- a/gc.c
+++ b/gc.c
@@ -665,27 +665,34 @@ void gc_wait_handshake()
 // GC Collection cycle
 
 // TODO:
-//void gc_collector()
-//{
-//  clear : stage clear-or-marking
-//    exchange values of markColor and clearColor
-//    weakRefsList:clear()
-//    Handshake(sync1)
-//  mark: Handshake(sync2)
-//    stage tracing
-//    postHandshake(async)
-//    mark global roots
-//    waitHandshake
-//  trace : CollectorTrace()
-//    stage refProcessing
-//    processRefs()
-//    stage sweeping
-//  sweep : For each object x in the heap:
-//    if (color(x) = clearColor)
-//      free free [ x
-//      color(x) blue
-//      stage resting
-//}
+void gc_collector()
+{
+  int tmp;
+  // TODO: what kind of sync is required here?
+
+  //clear 
+  gc_stage = STAGE_CLEAR_OR_MARKING;
+  // exchange values of markColor and clearColor
+  tmp = gc_color_clear;
+  gc_color_clear = gc_color_mark;
+  gc_color_mark = tmp;
+  gc_handshake(STATUS_SYNC1);
+  //mark: 
+  gc_handshake(STATUS_SYNC2)
+  gc_stage = STAGE_TRACING;
+  gc_post_handshake(STATUS_ASYNC);
+  TODO: mark global roots
+  gc_wait_handshake();
+  //trace : 
+  CollectorTrace()
+  gc_stage = STAGE_SWEEPING;
+  //sweep : 
+  For each object x in the heap:
+    if (color(x) = clearColor)
+      free free [ x
+      color(x) blue
+  gc_stage = STAGE_RESTING;
+}
 
 /////////////////////////////////////////////
 // END tri-color marking section
diff --git a/include/cyclone/types.h b/include/cyclone/types.h
index 5de7d56c..69f2466e 100644
--- a/include/cyclone/types.h
+++ b/include/cyclone/types.h
@@ -108,7 +108,7 @@ typedef enum { STATUS_ASYNC
 
 typedef enum { STAGE_CLEAR_OR_MARKING 
              , STAGE_TRACING 
-             , STAGE_REF_PROCESSING 
+             //, STAGE_REF_PROCESSING 
              , STAGE_SWEEPING 
              , STAGE_RESTING
              } gc_stage_type;