X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=urcu%2Flist.h;h=04dad80929ef1d6f2ec1a3adcd302d8f2f962533;hb=0722081a05550337b04be8217208214d30e3c3bf;hp=ab7a470a8d0f245541ce7b853b72875784ad511e;hpb=9d2614f07691a813a3c560a6c0bcd0a7be854ed5;p=urcu.git diff --git a/urcu/list.h b/urcu/list.h index ab7a470..04dad80 100644 --- a/urcu/list.h +++ b/urcu/list.h @@ -1,21 +1,26 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ +/* + * Copyright (C) 2002 Free Software Foundation, Inc. + * (originally part of the GNU C Library) + * Contributed by Ulrich Drepper , 2002. + * + * Copyright (C) 2009 Pierre-Marc Fournier + * Conversion to RCU list. + * Copyright (C) 2010 Mathieu Desnoyers + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ #ifndef _CDS_LIST_H #define _CDS_LIST_H 1 @@ -121,12 +126,15 @@ cds_list_splice (struct cds_list_head *add, struct cds_list_head *head) } } - /* Get typed element from list at a given position. */ #define cds_list_entry(ptr, type, member) \ ((type *) ((char *) (ptr) - (unsigned long) (&((type *) 0)->member))) +/* Get first entry from a list. */ +#define cds_list_first_entry(ptr, type, member) \ + cds_list_entry((ptr)->next, type, member) + /* Iterate forward over the elements of the list. */ #define cds_list_for_each(pos, head) \