From 6d00452c7c3576e2d36338bcf56408bfdbcd2c64 Mon Sep 17 00:00:00 2001
From: kosako <kosako@sofnec.co.jp>
Date: Tue, 29 Mar 2016 16:46:57 +0900
Subject: [PATCH] remove codes in USE_PARSE_TREE_NODE_RECYCLE

---
 src/regcomp.c  |  4 ----
 src/regint.h   |  1 -
 src/regparse.c | 58 --------------------------------------------------
 src/regparse.h |  1 -
 4 files changed, 64 deletions(-)

diff --git a/src/regcomp.c b/src/regcomp.c
index 6ff34e6..49de8f3 100644
--- a/src/regcomp.c
+++ b/src/regcomp.c
@@ -5594,10 +5594,6 @@ onig_end(void)
   onig_free_shared_cclass_table();
 #endif
 
-#ifdef USE_PARSE_TREE_NODE_RECYCLE
-  onig_free_node_list();
-#endif
-
   onig_inited = 0;
 
   THREAD_ATOMIC_END;
diff --git a/src/regint.h b/src/regint.h
index e2e9517..09fe2bc 100644
--- a/src/regint.h
+++ b/src/regint.h
@@ -65,7 +65,6 @@
 /* !!! moved to regenc.h. */ /* #define USE_CRNL_AS_LINE_TERMINATOR */
 
 /* internal config */
-#define USE_PARSE_TREE_NODE_RECYCLE
 #define USE_OP_PUSH_OR_JUMP_EXACT
 #define USE_QTFR_PEEK_NEXT
 #define USE_ST_LIBRARY
diff --git a/src/regparse.c b/src/regparse.c
index 48488cd..0f382b5 100644
--- a/src/regparse.c
+++ b/src/regparse.c
@@ -994,14 +994,6 @@ scan_env_set_mem_node(ScanEnv* env, int num, Node* node)
 }
 
 
-#ifdef USE_PARSE_TREE_NODE_RECYCLE
-typedef struct _FreeNode {
-  struct _FreeNode* next;
-} FreeNode;
-
-static FreeNode* FreeNodeList = (FreeNode* )NULL;
-#endif
-
 extern void
 onig_node_free(Node* node)
 {
@@ -1022,18 +1014,7 @@ onig_node_free(Node* node)
     {
       Node* next_node = NCDR(node);
 
-#ifdef USE_PARSE_TREE_NODE_RECYCLE
-      {
-	FreeNode* n = (FreeNode* )node;
-
-        THREAD_ATOMIC_START;
-	n->next = FreeNodeList;
-	FreeNodeList = n;
-        THREAD_ATOMIC_END;
-      }
-#else
       xfree(node);
-#endif
       node = next_node;
       goto start;
     }
@@ -1070,53 +1051,14 @@ onig_node_free(Node* node)
     break;
   }
 
-#ifdef USE_PARSE_TREE_NODE_RECYCLE
-  {
-    FreeNode* n = (FreeNode* )node;
-
-    THREAD_ATOMIC_START;
-    n->next = FreeNodeList;
-    FreeNodeList = n;
-    THREAD_ATOMIC_END;
-  }
-#else
   xfree(node);
-#endif
-}
-
-#ifdef USE_PARSE_TREE_NODE_RECYCLE
-extern int
-onig_free_node_list(void)
-{
-  FreeNode* n;
-
-  /* THREAD_ATOMIC_START; */
-  while (IS_NOT_NULL(FreeNodeList)) {
-    n = FreeNodeList;
-    FreeNodeList = FreeNodeList->next;
-    xfree(n);
-  }
-  /* THREAD_ATOMIC_END; */
-  return 0;
 }
-#endif
 
 static Node*
 node_new(void)
 {
   Node* node;
 
-#ifdef USE_PARSE_TREE_NODE_RECYCLE
-  THREAD_ATOMIC_START;
-  if (IS_NOT_NULL(FreeNodeList)) {
-    node = (Node* )FreeNodeList;
-    FreeNodeList = FreeNodeList->next;
-    THREAD_ATOMIC_END;
-    return node;
-  }
-  THREAD_ATOMIC_END;
-#endif
-
   node = (Node* )xmalloc(sizeof(Node));
   /* xmemset(node, 0, sizeof(Node)); */
   return node;
diff --git a/src/regparse.h b/src/regparse.h
index 0c5c2c9..fff707a 100644
--- a/src/regparse.h
+++ b/src/regparse.h
@@ -337,7 +337,6 @@ extern Node*  onig_node_new_list P_((Node* left, Node* right));
 extern Node*  onig_node_list_add P_((Node* list, Node* x));
 extern Node*  onig_node_new_alt P_((Node* left, Node* right));
 extern void   onig_node_str_clear P_((Node* node));
-extern int    onig_free_node_list P_((void));
 extern int    onig_names_free P_((regex_t* reg));
 extern int    onig_parse_make_tree P_((Node** root, const UChar* pattern, const UChar* end, regex_t* reg, ScanEnv* env));
 extern int    onig_free_shared_cclass_table P_((void));
-- 
2.40.0