diff options
Diffstat (limited to 'libglusterfs/src/iobuf.h')
| -rw-r--r-- | libglusterfs/src/iobuf.h | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/libglusterfs/src/iobuf.h b/libglusterfs/src/iobuf.h index 46a54dbfc..5595309e1 100644 --- a/libglusterfs/src/iobuf.h +++ b/libglusterfs/src/iobuf.h @@ -1,20 +1,11 @@ /* - Copyright (c) 2010-2011 Gluster, Inc. <http://www.gluster.com> - This file is part of GlusterFS. - - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS 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 - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. + Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #ifndef _IOBUF_H_ @@ -40,6 +31,11 @@ #define MAP_ANONYMOUS MAP_ANON #endif +#define GF_ALIGN_BUF(ptr,bound) ((void *)((unsigned long)(ptr + bound - 1) & \ + (unsigned long)(~(bound - 1)))) + +#define GF_IOBUF_ALIGN_SIZE 512 + /* one allocatable unit for the consumers of the IOBUF API */ /* each unit hosts @page_size bytes of memory */ struct iobuf; @@ -71,6 +67,9 @@ struct iobuf { int ref; /* 0 == passive, >0 == active */ void *ptr; /* usable memory region by the consumer */ + + void *free_ptr; /* in case of stdalloc, this is the + one to be freed */ }; @@ -151,7 +150,7 @@ struct iobref *iobref_ref (struct iobref *iobref); void iobref_unref (struct iobref *iobref); int iobref_add (struct iobref *iobref, struct iobuf *iobuf); int iobref_merge (struct iobref *to, struct iobref *from); - +void iobref_clear (struct iobref *iobref); size_t iobuf_size (struct iobuf *iobuf); size_t iobref_size (struct iobref *iobref); |