Merge pull request #5714 from alexischr/update_bockbuild

[mono.git] / mono / sgen / sgen-minor-scan-object.h

diff --git a/mono/sgen/sgen-minor-scan-object.h b/mono/sgen/sgen-minor-scan-object.h
index b1895985dc34e340f32093abfb423f967711f44a..f0baac8f87ebcdc8561b7ded135a3a033f74a33d 100644 (file)
--- a/mono/sgen/sgen-minor-scan-object.h
+++ b/mono/sgen/sgen-minor-scan-object.h
@@ -1,36 +1,65 @@
-/*
- * sgen-minor-scan-object.h: Object scanning in the nursery collectors.
+/**
+ * \file
+ * Object scanning in the nursery collectors.
  *
  * Copyright 2001-2003 Ximian, Inc
  * Copyright 2003-2010 Novell, Inc.
  * Copyright (C) 2012 Xamarin Inc
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License 2.0 as published by the Free Software Foundation;
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License 2.0 along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Licensed under the MIT license. See LICENSE file in the project root for full license information.
  */
 
 extern guint64 stat_scan_object_called_nursery;
 
+#undef SERIAL_SCAN_OBJECT
+#undef SERIAL_SCAN_VTYPE
+#undef SERIAL_SCAN_PTR_FIELD
+#undef SERIAL_DRAIN_GRAY_STACK
+
 #if defined(SGEN_SIMPLE_NURSERY)
+
+#ifdef SGEN_SIMPLE_PAR_NURSERY
+#ifdef SGEN_CONCURRENT_MAJOR
+#define SERIAL_SCAN_OBJECT simple_par_nursery_serial_with_concurrent_major_scan_object
+#define SERIAL_SCAN_VTYPE simple_par_nursery_serial_with_concurrent_major_scan_vtype
+#define SERIAL_SCAN_PTR_FIELD simple_par_nursery_serial_with_concurrent_major_scan_ptr_field
+#define SERIAL_DRAIN_GRAY_STACK simple_par_nursery_serial_with_concurrent_major_drain_gray_stack
+#else
+#define SERIAL_SCAN_OBJECT simple_par_nursery_serial_scan_object
+#define SERIAL_SCAN_VTYPE simple_par_nursery_serial_scan_vtype
+#define SERIAL_SCAN_PTR_FIELD simple_par_nursery_serial_scan_ptr_field
+#define SERIAL_DRAIN_GRAY_STACK simple_par_nursery_serial_drain_gray_stack
+#endif
+#else
+#ifdef SGEN_CONCURRENT_MAJOR
+#define SERIAL_SCAN_OBJECT simple_nursery_serial_with_concurrent_major_scan_object
+#define SERIAL_SCAN_VTYPE simple_nursery_serial_with_concurrent_major_scan_vtype
+#define SERIAL_SCAN_PTR_FIELD simple_nursery_serial_with_concurrent_major_scan_ptr_field
+#define SERIAL_DRAIN_GRAY_STACK simple_nursery_serial_with_concurrent_major_drain_gray_stack
+#else
 #define SERIAL_SCAN_OBJECT simple_nursery_serial_scan_object
 #define SERIAL_SCAN_VTYPE simple_nursery_serial_scan_vtype
+#define SERIAL_SCAN_PTR_FIELD simple_nursery_serial_scan_ptr_field
+#define SERIAL_DRAIN_GRAY_STACK simple_nursery_serial_drain_gray_stack
+#endif
+#endif
 
 #elif defined (SGEN_SPLIT_NURSERY)
+
+#ifdef SGEN_CONCURRENT_MAJOR
+#define SERIAL_SCAN_OBJECT split_nursery_serial_with_concurrent_major_scan_object
+#define SERIAL_SCAN_VTYPE split_nursery_serial_with_concurrent_major_scan_vtype
+#define SERIAL_SCAN_PTR_FIELD split_nursery_serial_with_concurrent_major_scan_ptr_field
+#define SERIAL_DRAIN_GRAY_STACK split_nursery_serial_with_concurrent_major_drain_gray_stack
+#else
 #define SERIAL_SCAN_OBJECT split_nursery_serial_scan_object
 #define SERIAL_SCAN_VTYPE split_nursery_serial_scan_vtype
+#define SERIAL_SCAN_PTR_FIELD split_nursery_serial_scan_ptr_field
+#define SERIAL_DRAIN_GRAY_STACK split_nursery_serial_drain_gray_stack
+#endif
 
 #else
-#error "Please define GC_CONF_NAME"
+#error "No nursery configuration specified"
 #endif
 
 #undef HANDLE_PTR
@@ -80,7 +109,45 @@ SERIAL_SCAN_VTYPE (GCObject *full_object, char *start, SgenDescriptor desc, Sgen
 #include "sgen-scan-object.h"
 }
 
-#define FILL_MINOR_COLLECTOR_SCAN_OBJECT(collector)    do {                    \
-               (collector)->serial_ops.scan_object = SERIAL_SCAN_OBJECT;       \
-               (collector)->serial_ops.scan_vtype = SERIAL_SCAN_VTYPE; \
+static void
+SERIAL_SCAN_PTR_FIELD (GCObject *full_object, GCObject **ptr, SgenGrayQueue *queue)
+{
+       HANDLE_PTR (ptr, NULL);
+}
+
+static gboolean
+SERIAL_DRAIN_GRAY_STACK (SgenGrayQueue *queue)
+{
+#ifdef SGEN_SIMPLE_PAR_NURSERY
+       int i;
+       /*
+        * We do bounded iteration so we can switch to optimized context
+        * when we are the last worker remaining.
+        */
+       for (i = 0; i < 32; i++) {
+#else
+       for (;;) {
+#endif
+               GCObject *obj;
+               SgenDescriptor desc;
+
+#ifdef SGEN_SIMPLE_PAR_NURSERY
+               GRAY_OBJECT_DEQUEUE_PARALLEL (queue, &obj, &desc);
+#else
+               GRAY_OBJECT_DEQUEUE_SERIAL (queue, &obj, &desc);
+#endif
+               if (!obj)
+                       return TRUE;
+
+               SERIAL_SCAN_OBJECT (obj, desc, queue);
+       }
+
+       return FALSE;
+}
+
+#define FILL_MINOR_COLLECTOR_SCAN_OBJECT(ops)  do {                    \
+               (ops)->scan_object = SERIAL_SCAN_OBJECT;                        \
+               (ops)->scan_vtype = SERIAL_SCAN_VTYPE;                  \
+               (ops)->scan_ptr_field = SERIAL_SCAN_PTR_FIELD;          \
+               (ops)->drain_gray_stack = SERIAL_DRAIN_GRAY_STACK;      \
        } while (0)