From 469bbcf0701e1eb8a6670c23145b0da87357e178 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Sun, 25 Mar 2012 20:00:08 +0000
Subject: Code is all reorganized.  We're about ready to release.  I should
 write up a little explenation of the arrangement.

---
 src/unstable/uuid.cpp | 117 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 src/unstable/uuid.cpp

(limited to 'src/unstable/uuid.cpp')

diff --git a/src/unstable/uuid.cpp b/src/unstable/uuid.cpp
new file mode 100644
index 0000000..088450b
--- /dev/null
+++ b/src/unstable/uuid.cpp
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2007-2011 Xagasoft, All rights reserved.
+ *
+ * This file is part of the libbu++ library and is released under the
+ * terms of the license contained in the file LICENSE.
+ */
+
+#include "bu/uuid.h"
+#include "bu/file.h"
+#include "bu/formatter.h"
+#include "bu/membuf.h"
+#include <string.h>
+
+Bu::Uuid::Uuid()
+{
+	clear();
+}
+
+Bu::Uuid::Uuid( const Uuid &src )
+{
+	memcpy( data, src.data, 16 );
+}
+
+Bu::Uuid::Uuid( const Bu::String &sSrc )
+{
+	if( sSrc.getSize() == 16 )
+	{
+		memcpy( data, sSrc.getStr(), 16 );
+	}
+	else if( sSrc.getSize() == 36 )
+	{
+		// Parse it
+		set( sSrc );
+	}
+}
+
+Bu::Uuid::~Uuid()
+{
+}
+
+Bu::String Bu::Uuid::toRawString() const
+{
+	return Bu::String( (char *)data, 16 );
+}
+
+Bu::String Bu::Uuid::toString() const
+{
+	Bu::MemBuf mb;
+	Bu::Formatter f( mb );
+
+	for( int j = 0; j < 16; j++ )
+	{
+		if( j == 4 || j == 6 || j == 8 || j == 10 )
+			f << '-';
+		f << Bu::Fmt::hex(2).caps(false) << (unsigned int)data[j];
+	}
+
+	return mb.getString();
+}
+
+Bu::String Bu::Uuid::toUrn() const
+{
+	return "urn:uuid:" + toString();
+}
+
+int Bu::Uuid::getVersion()
+{
+	return (data[6]&((8|4|2|1)<<4))>>4;
+}
+
+#define msb( i ) (1<<(7-i))
+
+void Bu::Uuid::clear()
+{
+	data[7] = msb(0);
+}
+
+Bu::Uuid Bu::Uuid::gen()
+{
+	Bu::File fIn( "/proc/sys/kernel/random/uuid", Bu::File::Read );
+	char dat[36];
+	fIn.read( dat, 36 );
+	Uuid id;
+	id.set( dat );
+	return id;
+}
+
+void Bu::Uuid::set( const Bu::String &sSrc )
+{
+	const char *dat = sSrc.getStr();
+	int iNibble = 0;
+	memset( data, 0, 16 );
+	for( int j = 0; j < 36; j++ )
+	{
+		if( dat[j] == '-' )
+			continue;
+		unsigned char c = (dat[j]>='0'&&dat[j]<='9')?(dat[j]-'0'):(dat[j]-'a'+10);
+		data[iNibble/2] |= (iNibble%2==0)?(c<<4):(c);
+		iNibble++;
+	}
+}
+
+bool Bu::Uuid::operator==( const Uuid &rhs ) const
+{
+	return memcmp( data, rhs.data, 16 ) == 0;
+}
+
+template<> uint32_t Bu::__calcHashCode<Bu::Uuid>( const Bu::Uuid &k )
+{
+	return __calcHashCode<String>( k.toRawString() );
+}
+
+template<> bool Bu::__cmpHashKeys<Bu::Uuid>( const Bu::Uuid &a, const Bu::Uuid &b )
+{
+	return a == b;
+}
+
-- 
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