From e1016e4f8a90133f99af154c826d4f78c1f0ae92 Mon Sep 17 00:00:00 2001
From: Tyler Dauwalder <tylerdauwalder@nowhere.fake>
Date: Fri, 4 Jul 2003 06:14:06 +0000
Subject: [PATCH] Icb class initial checkin.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3826 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/add-ons/kernel/file_systems/udf/Icb.cpp | 33 +++++++++++++++
 src/add-ons/kernel/file_systems/udf/Icb.h   | 47 +++++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 src/add-ons/kernel/file_systems/udf/Icb.cpp
 create mode 100644 src/add-ons/kernel/file_systems/udf/Icb.h

diff --git a/src/add-ons/kernel/file_systems/udf/Icb.cpp b/src/add-ons/kernel/file_systems/udf/Icb.cpp
new file mode 100644
index 0000000000..5c214d6d5e
--- /dev/null
+++ b/src/add-ons/kernel/file_systems/udf/Icb.cpp
@@ -0,0 +1,33 @@
+#include "Icb.h"
+
+#include "Volume.h"
+
+using namespace Udf;
+
+Icb::Icb(Volume *volume, udf_long_address address)
+	: fVolume(NULL)
+	, fIcbData(volume ? volume->BlockSize() : 0)
+	, fInitStatus(B_NO_INIT)
+	, fId((address.block() << 16) & (address.partition()))
+{
+	DEBUG_INIT_ETC(CF_PUBLIC, "Icb", ("Volume*(%p), long_address(block: %ld, partition: %d, length: %ld)", volume, address.block(), address.partition(), address.length()));  
+	status_t err = volume ? B_OK : B_BAD_VALUE;
+	if (!err) {
+		err = fIcbData.InitCheck();
+		if (!err) {
+			err = volume->Read(address, fIcbData.Size(), fIcbData.Data());
+			if (!err) {
+				udf_icb_header *header = reinterpret_cast<udf_icb_header*>(fIcbData.Data());
+				PDUMP(header);
+				err = header->tag().init_check(address.block());
+			}
+		}
+	}		
+	fInitStatus = err;
+}
+	
+status_t
+Icb::InitCheck()
+{
+	return fInitStatus;
+}
diff --git a/src/add-ons/kernel/file_systems/udf/Icb.h b/src/add-ons/kernel/file_systems/udf/Icb.h
new file mode 100644
index 0000000000..87e7371205
--- /dev/null
+++ b/src/add-ons/kernel/file_systems/udf/Icb.h
@@ -0,0 +1,47 @@
+//----------------------------------------------------------------------
+//  This software is part of the OpenBeOS distribution and is covered 
+//  by the OpenBeOS license.
+//
+//  Copyright (c) 2003 Tyler Dauwalder, tyler@dauwalder.net
+//---------------------------------------------------------------------
+#ifndef _UDF_ICB_H
+#define _UDF_ICB_H
+
+/*! \file Icb.h
+*/
+
+extern "C" {
+	#ifndef _IMPEXP_KERNEL
+	#	define _IMPEXP_KERNEL
+	#endif
+	
+	#include <fsproto.h>
+}
+
+#include "cpp.h"
+#include "UdfDebug.h"
+
+#include "DiskStructures.h"
+#include "MemoryChunk.h"
+
+namespace Udf {
+
+class Volume;
+
+class Icb {
+public:
+	Icb(Volume *volume, udf_long_address address);
+	status_t InitCheck();
+	vnode_id Id() { return fId; }
+private:
+	Icb();	// unimplemented
+private:
+	Volume *fVolume;
+	MemoryChunk fIcbData;
+	status_t fInitStatus;
+	vnode_id fId;
+};
+
+};	// namespace Udf
+
+#endif	// _UDF_ICB_H