-/*
- * 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.
#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)
#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
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)