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diff src/core/ngx_open_file_cache.c @ 4497:95ab6658654a

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Fix of rbtree lookup on hash collisions. Previous code incorrectly assumed that nodes with identical keys are linked together. This might not be true after tree rebalance. Patch by Lanshun Zhou.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 27 Feb 2012 22:15:39 +0000
parents 47ece8818978
children 6b479db5b52b
line wrap: on
line diff
--- a/src/core/ngx_open_file_cache.c
+++ b/src/core/ngx_open_file_cache.c
@@ -1142,20 +1142,15 @@ ngx_open_file_lookup(ngx_open_file_cache
 
         /* hash == node->key */
 
-        do {
-            file = (ngx_cached_open_file_t *) node;
+        file = (ngx_cached_open_file_t *) node;
 
-            rc = ngx_strcmp(name->data, file->name);
+        rc = ngx_strcmp(name->data, file->name);
 
-            if (rc == 0) {
-                return file;
-            }
+        if (rc == 0) {
+            return file;
+        }
 
-            node = (rc < 0) ? node->left : node->right;
-
-        } while (node != sentinel && hash == node->key);
-
-        break;
+        node = (rc < 0) ? node->left : node->right;
     }
 
     return NULL;