From e7579f608a1bdb52271c57e9ad69a7752ea1371b Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Mon, 7 May 2018 18:18:17 +0200
Subject: erts: Rename untrapping db_free_*empty*_table

as it's now only used for empty tables by ets:new/2.
---
 erts/emulator/beam/erl_db.c      | 2 +-
 erts/emulator/beam/erl_db_hash.c | 8 ++++----
 erts/emulator/beam/erl_db_tree.c | 7 ++++---
 erts/emulator/beam/erl_db_util.h | 2 +-
 4 files changed, 10 insertions(+), 9 deletions(-)

(limited to 'erts/emulator/beam')

diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index 696ad17daa..468e22ed59 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -1782,7 +1782,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2)
 
 	db_lock(tb,LCK_WRITE);
 	free_heir_data(tb);
-	tb->common.meth->db_free_table(tb);
+	tb->common.meth->db_free_empty_table(tb);
 	db_unlock(tb,LCK_WRITE);
         table_dec_refc(tb, 0);
 	BIF_ERROR(BIF_P, BADARG);
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c
index 6bb5034971..74d63325e6 100644
--- a/erts/emulator/beam/erl_db_hash.c
+++ b/erts/emulator/beam/erl_db_hash.c
@@ -418,7 +418,7 @@ static void db_print_hash(fmtfn_t to,
 			  void *to_arg,
 			  int show,
 			  DbTable *tbl);
-static int db_free_table_hash(DbTable *tbl);
+static int db_free_empty_table_hash(DbTable *tbl);
 
 static SWord db_free_table_continue_hash(DbTable *tbl, SWord reds);
 
@@ -531,7 +531,7 @@ DbTableMethod db_hash =
     db_select_replace_continue_hash,
     db_take_hash,
     db_delete_all_objects_hash,
-    db_free_table_hash,
+    db_free_empty_table_hash,
     db_free_table_continue_hash,
     db_print_hash,
     db_foreach_offheap_hash,
@@ -2426,9 +2426,9 @@ static void db_print_hash(fmtfn_t to, void *to_arg, int show, DbTable *tbl)
     }
 }
 
-/* release all memory occupied by a single table */
-static int db_free_table_hash(DbTable *tbl)
+static int db_free_empty_table_hash(DbTable *tbl)
 {
+    ASSERT(NITEMS(tbl) == 0);
     while (db_free_table_continue_hash(tbl, ERTS_SWORD_MAX) < 0)
 	;
     return 0;
diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c
index 4dcb41523f..0692583dd4 100644
--- a/erts/emulator/beam/erl_db_tree.c
+++ b/erts/emulator/beam/erl_db_tree.c
@@ -417,7 +417,7 @@ static int db_select_replace_continue_tree(Process *p, DbTable *tbl,
 static int db_take_tree(Process *, DbTable *, Eterm, Eterm *);
 static void db_print_tree(fmtfn_t to, void *to_arg,
 			  int show, DbTable *tbl);
-static int db_free_table_tree(DbTable *tbl);
+static int db_free_empty_table_tree(DbTable *tbl);
 
 static SWord db_free_table_continue_tree(DbTable *tbl, SWord);
 
@@ -470,7 +470,7 @@ DbTableMethod db_tree =
     db_select_replace_continue_tree,
     db_take_tree,
     db_delete_all_objects_tree,
-    db_free_table_tree,
+    db_free_empty_table_tree,
     db_free_table_continue_tree,
     db_print_tree,
     db_foreach_offheap_tree,
@@ -1969,8 +1969,9 @@ static void db_print_tree(fmtfn_t to, void *to_arg,
 }
 
 /* release all memory occupied by a single table */
-static int db_free_table_tree(DbTable *tbl)
+static int db_free_empty_table_tree(DbTable *tbl)
 {
+    ASSERT(tbl->tree.root == NULL);
     while (db_free_table_continue_tree(tbl, ERTS_SWORD_MAX) < 0)
 	;
     return 1;
diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h
index 56689bcc03..73d242449e 100644
--- a/erts/emulator/beam/erl_db_util.h
+++ b/erts/emulator/beam/erl_db_util.h
@@ -183,7 +183,7 @@ typedef struct db_table_method
 
     SWord (*db_delete_all_objects)(Process* p, DbTable* db, SWord reds);
 
-    int (*db_free_table)(DbTable* db /* [in out] */ );
+    int (*db_free_empty_table)(DbTable* db);
     SWord (*db_free_table_continue)(DbTable* db, SWord reds);
     
     void (*db_print)(fmtfn_t to,
-- 
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