1 files changed, 88 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_goodfit_alloc.h b/erts/emulator/beam/erl_goodfit_alloc.h
new file mode 100644
index 0000000000..3d1b8c01f6
--- /dev/null
+++ b/erts/emulator/beam/erl_goodfit_alloc.h
@@ -0,0 +1,88 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2003-2009. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+
+#ifndef ERL_GOODFIT_ALLOC__
+#define ERL_GOODFIT_ALLOC__
+
+#include "erl_alloc_util.h"
+
+#define ERTS_ALC_GF_ALLOC_VSN_STR "2.1"
+
+typedef struct GFAllctr_t_ GFAllctr_t;
+
+typedef struct {
+    Uint mbsd;
+} GFAllctrInit_t;
+
+#define ERTS_DEFAULT_GF_ALLCTR_INIT {                                      \
+    3,			/* (amount) mbsd:   max (mbc) block search depth */\
+}
+
+void erts_gfalc_init(void);
+Allctr_t *erts_gfalc_start(GFAllctr_t *, GFAllctrInit_t *, AllctrInit_t *);
+
+#endif /* #ifndef ERL_GOODFIT_ALLOC__ */
+
+
+
+#if defined(GET_ERL_GF_ALLOC_IMPL) && !defined(ERL_GF_ALLOC_IMPL__)
+#define ERL_GF_ALLOC_IMPL__
+
+#define GET_ERL_ALLOC_UTIL_IMPL
+#include "erl_alloc_util.h"
+
+#define NO_OF_BKT_IX_BITS (8)
+#ifdef ARCH_64
+#  define SUB_MASK_IX_SHIFT (6)
+#else
+#  define SUB_MASK_IX_SHIFT (5)
+#endif
+#define NO_OF_BKTS (((Uint) 1) << NO_OF_BKT_IX_BITS)
+#define NO_OF_SUB_MASKS (NO_OF_BKTS/(((Uint) 1) << SUB_MASK_IX_SHIFT))
+
+typedef struct {
+    Uint main;
+    Uint sub[NO_OF_SUB_MASKS];
+} BucketMask_t; 
+
+typedef struct GFFreeBlock_t_ GFFreeBlock_t;
+struct GFFreeBlock_t_ {
+    Block_t block_head;
+    GFFreeBlock_t *prev;
+    GFFreeBlock_t *next;
+};
+
+struct GFAllctr_t_ {
+    Allctr_t		allctr; /* Has to be first! */
+
+    char *		last_aux_mbc_start;
+    char *		last_aux_mbc_end;
+    Uint		bkt_max_size_d;
+    Uint		bkt_intrvl_d;
+    BucketMask_t	bucket_mask;
+    GFFreeBlock_t *	buckets[NO_OF_BKTS];
+    Uint 		max_blk_search;
+
+};
+
+unsigned long erts_gfalc_test(unsigned long, unsigned long, unsigned long);
+
+#endif /* #if defined(GET_ERL_GF_ALLOC_IMPL)
+	      && !defined(ERL_GF_ALLOC_IMPL__) */