new file mode 100644
--- /dev/null
+++ b/src/core/ngx_list.h
@@ -0,0 +1,79 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ */
+
+
+#ifndef _NGX_LIST_H_INCLUDED_
+#define _NGX_LIST_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+typedef struct ngx_list_part_s  ngx_list_part_t;
+
+struct ngx_list_part_s {
+    void             *elts;
+    ngx_uint_t        nelts;
+    ngx_list_part_t  *next;
+};
+
+
+typedef struct {
+    ngx_list_part_t  *last;
+    ngx_list_part_t   part;
+    size_t            size;
+    ngx_uint_t        nalloc;
+    ngx_pool_t       *pool;
+} ngx_list_t;
+
+
+ngx_inline static ngx_int_t ngx_list_init(ngx_list_t *list, ngx_pool_t *pool,
+                                          ngx_uint_t n, size_t size)
+{
+    if (!(list->part.elts = ngx_palloc(pool, n * size))) {
+        return NGX_ERROR;
+    }
+
+    list->part.nelts = 0;
+    list->part.next = NULL;
+    list->last = &list->part;
+    list->size = size;
+    list->nalloc = n;
+    list->pool = pool;
+
+    return NGX_OK;
+}
+
+
+/*
+ *
+ *  the iteration through the list:
+ *
+ *  part = &list.part;
+ *  data = part->elts;
+ *
+ *  for (i = 0 ;; i++) {
+ *
+ *      if (i >= part->nelts) {
+ *          if (part->next == NULL) {
+ *              break;
+ *          }
+ *
+ *          part = part->next;
+ *          data = part->elts;
+ *          i = 0;
+ *      }
+ *
+ *      ...  data[i] ...
+ *
+ *  }
+ */
+
+
+void *ngx_list_push(ngx_list_t *list);
+
+
+#endif /* _NGX_LIST_H_INCLUDED_ */