summaryrefslogtreecommitdiffstats
path: root/include/my_byteorder.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/my_byteorder.h')
-rw-r--r--include/my_byteorder.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/include/my_byteorder.h b/include/my_byteorder.h
new file mode 100644
index 00000000..a70330ca
--- /dev/null
+++ b/include/my_byteorder.h
@@ -0,0 +1,54 @@
+#ifndef MY_BYTEORDER_INCLUDED
+#define MY_BYTEORDER_INCLUDED
+
+/* Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
+
+ 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; version 2 of the License.
+
+ 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 St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+
+/*
+ Macro for reading 32-bit integer from network byte order (big-endian)
+ from an unaligned memory location.
+*/
+#define int4net(A) (int32) (((uint32) ((uchar) (A)[3])) | \
+ (((uint32) ((uchar) (A)[2])) << 8) | \
+ (((uint32) ((uchar) (A)[1])) << 16) | \
+ (((uint32) ((uchar) (A)[0])) << 24))
+
+/*
+ Function-like macros for reading and storing in machine independent
+ format (low byte first). There are 'korr' (assume 'corrector') variants
+ for integer types, but 'get' (assume 'getter') for floating point types.
+*/
+#if (defined(__i386__) || defined(_M_IX86)) && !defined(WITH_UBSAN)
+#define MY_BYTE_ORDER_ARCH_OPTIMIZED
+#include "byte_order_generic_x86.h"
+#elif (defined(__x86_64__) || defined (_M_X64)) && !defined(WITH_UBSAN)
+#include "byte_order_generic_x86_64.h"
+#else
+#include "byte_order_generic.h"
+#endif
+
+/*
+ Function-like macros for reading and storing in machine format from/to
+ short/long to/from some place in memory V should be a variable (not on
+ a register) and M a pointer to byte.
+*/
+#ifdef WORDS_BIGENDIAN
+#include "big_endian.h"
+#else
+#include "little_endian.h"
+#endif
+
+#endif /* MY_BYTEORDER_INCLUDED */