Initial commit

MqttPayload/pando_endian.c

@@ -0,0 +1,112 @@
+//  Copyright (c) 2015 Pando. All rights reserved.
+//  PtotoBuf:   ProtocolBuffer.h
+//
+//  Create By ZhaoWenwu On 15/01/24.
+
+#include "pando_endian.h"
+
+int little_endian = -1;
+
+int FUNCTION_ATTRIBUTE is_little_endian()
+{
+	if(little_endian == -1)
+	{
+		union int_char
+		{
+			int i;
+			char c;
+		}x;
+		x.i = 1;
+		little_endian = x.c;
+	}
+
+	return little_endian;
+}
+
+uint16_t FUNCTION_ATTRIBUTE net16_to_host(uint16_t A)
+{
+	if(is_little_endian())
+	{
+		return ((((A) & 0xff00) >> 8) | (((A) & 0x00ff) << 8));
+	}
+	else
+	{
+		return A;
+	}
+}
+
+uint32_t FUNCTION_ATTRIBUTE net32_to_host(uint32_t A)
+{
+	if(is_little_endian())
+	{
+		return ((((A) & 0xff000000) >> 24) | \
+			(((A) & 0x00ff0000) >> 8 ) | \
+			(((A) & 0x0000ff00) << 8 ) | \
+			(((A) & 0x000000ff) << 24));
+	}
+	else
+	{
+		return A;
+	}
+}
+
+uint64_t FUNCTION_ATTRIBUTE net64_to_host(uint64_t A)
+{
+	uint64_t mask = 0xff;
+	if(is_little_endian())
+	{
+		return 	((((A) & (mask << 56)) >> 56) | \
+			(((A) & (mask << 48)) >> 40) | \
+			(((A) & (mask << 40)) >> 24) | \
+			(((A) & (mask << 32)) >> 8) | \
+			(((A) & (mask << 24)) << 8) | \
+			(((A) & (mask << 16)) << 24) | \
+			(((A) & (mask << 8)) << 40) | \
+			(((A) & (mask)) << 56));
+	}
+	else
+	{
+		return A;
+	}
+}
+
+
+float FUNCTION_ATTRIBUTE net32f_to_host(float A)
+{
+	if(is_little_endian())
+	{
+		union float_int
+		{
+			float f;
+			uint32_t i;
+		}x;
+		x.f = A;
+		x.i = net32_to_host(x.i);
+		return x.f;
+	}
+	else
+	{
+		return A;
+	}
+}
+
+double FUNCTION_ATTRIBUTE net64f_to_host(double A)
+{
+	if(is_little_endian())
+	{
+		union double_uint64
+		{
+			double d;
+			uint64_t i;
+		}x;
+		x.d = A;
+		x.i = net64_to_host(x.i);
+		return x.d;
+	}
+	else
+	{
+		return A;
+	}
+}
+
+

MqttPayload/pando_endian.h

@@ -0,0 +1,35 @@
+//  Copyright (c) 2015 Pando. All rights reserved.
+//  PtotoBuf:   ProtocolBuffer.h
+//
+//  Create By ZhaoWenwu On 15/01/24.
+
+#ifndef PANDO_ENDIAN_H
+#define PANDO_ENDIAN_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "platform_functions.h"
+
+//大小端转换函数
+uint16_t net16_to_host(uint16_t A);
+uint32_t net32_to_host(uint32_t A);
+uint64_t net64_to_host(uint64_t A);
+float    net32f_to_host(float A);
+double   net64f_to_host(double A);
+
+#define host16_to_net  net16_to_host
+#define host32_to_net  net32_to_host
+#define host64_to_net  net64_to_host
+#define host32f_to_net net32f_to_host
+#define host64f_to_net net64f_to_host
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+
+