Mercurial > hg > nginx
diff src/core/ngx_rbtree.c @ 825:f9b9b84a8e18
bad commit
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Sat, 28 Oct 2006 14:20:13 +0000 |
parents | c1f965ef9718 |
children | 4390fcad6628 |
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--- a/src/core/ngx_rbtree.c +++ b/src/core/ngx_rbtree.c @@ -47,48 +47,7 @@ ngx_rbtree_insert(ngx_thread_volatile ng return; } - /* - * The rbtree is currently used by event timers only. Timer values - * 1) are spread in small range, usually several minutes, - * 2) and overflow each 49 days, if milliseconds are stored in 32 bits. - * The below comparison takes into account that overflow. - * - * If there will be a necessity to use the rbtree for values with - * other comparison rules, then a whole "for ( ;; )" loop should - * be made as tree->insert() function. - */ - - temp = *root; - - for ( ;; ) { - - /* node->key < temp->key */ - - if ((ngx_rbtree_key_int_t) node->key - (ngx_rbtree_key_int_t) temp->key - < 0) - { - if (temp->left == sentinel) { - temp->left = node; - break; - } - - temp = temp->left; - continue; - } - - if (temp->right == sentinel) { - temp->right = node; - break; - } - - temp = temp->right; - continue; - } - - node->parent = temp; - node->left = sentinel; - node->right = sentinel; - + tree->insert(*root, node, sentinel); /* re-balance tree */ @@ -136,7 +95,6 @@ ngx_rbtree_insert(ngx_thread_volatile ng ngx_rbtree_left_rotate(root, sentinel, node->parent->parent); } } - } ngx_rbt_black(*root); @@ -144,6 +102,47 @@ ngx_rbtree_insert(ngx_thread_volatile ng void +ngx_rbtree_insert_timer_value(ngx_rbtree_node_t *temp, ngx_rbtree_node_t *node, + ngx_rbtree_node_t *sentinel) +{ + for ( ;; ) { + + /* + * Timer values + * 1) are spread in small range, usually several minutes, + * 2) and overflow each 49 days, if milliseconds are stored in 32 bits. + * The comparison takes into account that overflow. + */ + + if ((ngx_rbtree_key_int_t) node->key - (ngx_rbtree_key_int_t) temp->key + < 0) + { + /* node->key < temp->key */ + + if (temp->left == sentinel) { + temp->left = node; + break; + } + + temp = temp->left; + continue; + } + + if (temp->right == sentinel) { + temp->right = node; + break; + } + + temp = temp->right; + } + + node->parent = temp; + node->left = sentinel; + node->right = sentinel; +} + + +void ngx_rbtree_delete(ngx_thread_volatile ngx_rbtree_t *tree, ngx_rbtree_node_t *node) {