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authorJianfeng Tan <henry.tjf@antfin.com>2019-11-18 06:59:50 +0000
committerJianfeng Tan <henry.tjf@antfin.com>2020-03-05 01:31:33 +0800
commit78c896b3b3127515478090c19447e27dc406427e (patch)
treed6d67d4683e9ca0409f9984a834547a572fb5310 /test/packetdrill/unaligned.h
parente4380f4866091fd92a7a57667dd938a99144f9cd (diff)
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com> Signed-off-by: Jielong Zhou <jielong.zjl@antfin.com> Signed-off-by: Jian Zhang <wuzai.zj@antfin.com> Signed-off-by: Chen Zhao <winters.zc@antfin.com> Change-Id: I55c39de4c6cd30f991f35631eb507f770230f08e
Diffstat (limited to 'test/packetdrill/unaligned.h')
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diff --git a/test/packetdrill/unaligned.h b/test/packetdrill/unaligned.h
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+/*
+ * Copyright 2013 Google Inc.
+ *
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+/*
+ * Author: ncardwell@google.com (Neal Cardwell)
+ *
+ * Helpers for portably safe access to unaligned multi-byte values.
+ */
+
+#ifndef __UNALIGNED_H__
+#define __UNALIGNED_H__
+
+#include "types.h"
+
+static inline u32 __get_unaligned_be32(const u8 *p)
+{
+ return p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
+}
+
+static inline void __put_unaligned_be32(u32 val, u8 *p)
+{
+ *p++ = val >> 24;
+ *p++ = val >> 16;
+ *p++ = val >> 8;
+ *p++ = val;
+}
+
+static inline u32 get_unaligned_be32(const void *p)
+{
+ return __get_unaligned_be32((const u8 *)p);
+}
+
+static inline void put_unaligned_be32(u32 val, void *p)
+{
+ __put_unaligned_be32(val, p);
+}
+
+#endif /* __UNALIGNED_H__ */