From 4f572663c8ef0dd4274bf935e3385c454e0ddaf5 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 1 Jul 2008 08:21:44 +0000
Subject: * regexec.c (stack_double): use MatchStackLimitSize atomically.

* regparse.c (onig_free_shared_cclass_table): OnigTypeCClassTable
  needs atomicity

* regsyntax.c: constified all predefined OnigSyntaxTypes.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17765 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 regparse.c | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

(limited to 'regparse.c')

diff --git a/regparse.c b/regparse.c
index 8d74efafea..4a5e861fdb 100644
--- a/regparse.c
+++ b/regparse.c
@@ -34,7 +34,7 @@
 #define CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS
 
 
-OnigSyntaxType OnigSyntaxRuby = {
+const OnigSyntaxType OnigSyntaxRuby = {
   (( SYN_GNU_REGEX_OP | ONIG_SYN_OP_QMARK_NON_GREEDY |
      ONIG_SYN_OP_ESC_OCTAL3 | ONIG_SYN_OP_ESC_X_HEX2 |
      ONIG_SYN_OP_ESC_X_BRACE_HEX8 | ONIG_SYN_OP_ESC_CONTROL_CHARS |
@@ -70,7 +70,7 @@ OnigSyntaxType OnigSyntaxRuby = {
   }
 };
 
-OnigSyntaxType*  OnigDefaultSyntax = ONIG_SYNTAX_RUBY;
+const OnigSyntaxType*  OnigDefaultSyntax = ONIG_SYNTAX_RUBY;
 
 extern void onig_null_warn(const char* s ARG_UNUSED) { }
 
@@ -342,7 +342,7 @@ str_end_hash(st_str_end_key* x)
 extern hash_table_type*
 onig_st_init_strend_table_with_size(int size)
 {
-  static struct st_hash_type hashType = {
+  static const struct st_hash_type hashType = {
     str_end_cmp,
     str_end_hash,
   };
@@ -2177,7 +2177,7 @@ enum ReduceType {
   RQ_PQ_Q      /* to '+?)?' */
 };
 
-static enum ReduceType ReduceTypeTable[6][6] = {
+static enum ReduceType const ReduceTypeTable[6][6] = {
   {RQ_DEL,  RQ_A,    RQ_A,   RQ_QQ,   RQ_AQ,   RQ_ASIS}, /* '?'  */
   {RQ_DEL,  RQ_DEL,  RQ_DEL, RQ_P_QQ, RQ_P_QQ, RQ_DEL},  /* '*'  */
   {RQ_A,    RQ_A,    RQ_DEL, RQ_ASIS, RQ_P_QQ, RQ_DEL},  /* '+'  */
@@ -2862,7 +2862,7 @@ find_str_position(OnigCodePoint s[], int n, UChar* from, UChar* to,
 
 static int
 str_exist_check_with_esc(OnigCodePoint s[], int n, UChar* from, UChar* to,
-		 OnigCodePoint bad, OnigEncoding enc, OnigSyntaxType* syn)
+		 OnigCodePoint bad, OnigEncoding enc, const OnigSyntaxType* syn)
 {
   int i, in_esc;
   OnigCodePoint x;
@@ -2903,7 +2903,7 @@ fetch_token_in_cc(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env)
 {
   int num;
   OnigCodePoint c, c2;
-  OnigSyntaxType* syn = env->syntax;
+  const OnigSyntaxType* syn = env->syntax;
   OnigEncoding enc = env->enc;
   UChar* prev;
   UChar* p = *src;
@@ -3122,7 +3122,7 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env)
   int r, num;
   OnigCodePoint c;
   OnigEncoding enc = env->enc;
-  OnigSyntaxType* syn = env->syntax;
+  const OnigSyntaxType* syn = env->syntax;
   UChar* prev;
   UChar* p = *src;
   PFETCH_READY;
@@ -3911,7 +3911,7 @@ parse_posix_bracket(CClassNode* cc, UChar** src, UChar* end, ScanEnv* env)
 #define POSIX_BRACKET_CHECK_LIMIT_LENGTH  20
 #define POSIX_BRACKET_NAME_MIN_LEN         4
 
-  static PosixBracketEntryType PBS[] = {
+  static const PosixBracketEntryType PBS[] = {
     { (UChar* )"alnum",  ONIGENC_CTYPE_ALNUM,  5 },
     { (UChar* )"alpha",  ONIGENC_CTYPE_ALPHA,  5 },
     { (UChar* )"blank",  ONIGENC_CTYPE_BLANK,  5 },
@@ -3929,7 +3929,7 @@ parse_posix_bracket(CClassNode* cc, UChar** src, UChar* end, ScanEnv* env)
     { (UChar* )NULL,     -1, 0 }
   };
 
-  PosixBracketEntryType *pb;
+  const PosixBracketEntryType *pb;
   int not, i, r;
   OnigCodePoint c;
   OnigEncoding enc = env->enc;
@@ -4742,11 +4742,11 @@ parse_enclose(Node** np, OnigToken* tok, int term, UChar** src, UChar* end,
   return 0;
 }
 
-static const char* PopularQStr[] = {
+static const char* const PopularQStr[] = {
   "?", "*", "+", "??", "*?", "+?"
 };
 
-static const char* ReduceQStr[] = {
+static const char* const ReduceQStr[] = {
   "", "", "*", "*?", "??", "+ and ??", "+? and ?"
 };
 
@@ -4882,7 +4882,7 @@ static int type_cclass_hash(type_cclass_key* key)
   return val + (val >> 5);
 }
 
-static struct st_hash_type type_type_cclass_hash = {
+static const struct st_hash_type type_type_cclass_hash = {
     type_cclass_cmp,
     type_cclass_hash,
 };
@@ -4906,11 +4906,13 @@ i_free_shared_class(type_cclass_key* key, Node* node, void* arg ARG_UNUSED)
 extern int
 onig_free_shared_cclass_table(void)
 {
+  THREAD_ATOMIC_START;
   if (IS_NOT_NULL(OnigTypeCClassTable)) {
     onig_st_foreach(OnigTypeCClassTable, i_free_shared_class, 0);
     onig_st_free_table(OnigTypeCClassTable);
     OnigTypeCClassTable = NULL;
   }
+  THREAD_ATOMIC_END;
 
   return 0;
 }
-- 
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