* takes into account volume label

* clean up
* directories don't seem to have a valid contiguous flag, fixes directories with many files.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40431 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/file_systems/exfat/DirectoryIterator.cpp

@@ -140,7 +140,8 @@ DirectoryIterator::Rewind()
 void
 DirectoryIterator::Iterate(EntryVisitor &visitor)
 {
-	Rewind();
+	fOffset = 0;
+	fCluster = fInode->StartCluster();
 	
 	while (_NextEntry() != B_ENTRY_NOT_FOUND) {
 		switch (fCurrent->type) {

src/add-ons/kernel/file_systems/exfat/Inode.cpp

@@ -45,10 +45,9 @@ Inode::Inode(Volume* volume, cluster_t cluster, uint32 offset)
 		fFileEntry.file.SetAttribs(EXFAT_ENTRY_ATTRIB_SUBDIR);
 		fFileEntry.file_info.SetStartCluster(Cluster());
 		fFileInfoEntry.file_info.SetFlag(0);
-	} else
+	} else {
 		fInitStatus = UpdateNodeFromDisk();
-	if (fInitStatus == B_OK) {
-		if (!IsDirectory() && !IsSymLink()) {
+		if (fInitStatus == B_OK && !IsDirectory() && !IsSymLink()) {
 			fCache = file_cache_create(fVolume->ID(), ID(), Size());
 			fMap = file_map_create(fVolume->ID(), ID(), Size());
 		}
@@ -76,20 +75,17 @@ Inode::Inode(Volume* volume, ino_t ino)
 	TRACE("Inode::Inode(%" B_PRIdINO ") cluster %ld\n", ID(), Cluster());
 	_Init();
 
-	if (fInitStatus == B_OK && ID() != 1)
-			fInitStatus = UpdateNodeFromDisk();
-	else if (fInitStatus == B_OK && ID() == 1) {
-		fFileEntry.file.SetAttribs(EXFAT_ENTRY_ATTRIB_SUBDIR);
-		fFileInfoEntry.file_info.SetStartCluster(Cluster());
-		fFileInfoEntry.file_info.SetFlag(0);
-	}
-	if (fInitStatus == B_OK) {
+	if (fInitStatus == B_OK && ID() != 1) {
+		fInitStatus = UpdateNodeFromDisk();
 		if (!IsDirectory() && !IsSymLink()) {
 			fCache = file_cache_create(fVolume->ID(), ID(), Size());
 			fMap = file_map_create(fVolume->ID(), ID(), Size());
 		}
+	} else if (fInitStatus == B_OK && ID() == 1) {
+		fFileEntry.file.SetAttribs(EXFAT_ENTRY_ATTRIB_SUBDIR);
+		fFileInfoEntry.file_info.SetStartCluster(Cluster());
+		fFileInfoEntry.file_info.SetFlag(0);
 	}
-	TRACE("Inode::Inode(%" B_PRIdINO ") end\n", ID());
 }
 
 
@@ -124,7 +120,6 @@ Inode::InitCheck()
 status_t
 Inode::UpdateNodeFromDisk()
 {
-	
 	DirectoryIterator iterator(this);
 	iterator.LookupEntry(this);
 	return B_OK;
@@ -134,7 +129,7 @@ Inode::UpdateNodeFromDisk()
 cluster_t
 Inode::NextCluster(cluster_t cluster) const
 {
-	if (!IsContiguous())
+	if (!IsContiguous() || IsDirectory())
 		return GetVolume()->NextCluster(cluster);
 	return cluster + 1;
 }

src/add-ons/kernel/file_systems/exfat/Volume.cpp

@@ -22,6 +22,7 @@
 #include <util/AutoLock.h>
 
 #include "CachedBlock.h"
+#include "encodings.h"
 #include "Inode.h"
 
 
@@ -198,6 +199,38 @@ DeviceOpener::GetSize(off_t* _size, uint32* _blockSize)
 //	#pragma mark -
 
 
+class LabelVisitor : public EntryVisitor {
+public:
+								LabelVisitor(Volume* volume);
+			bool				VisitLabel(struct exfat_entry*);
+private:
+			Volume*				fVolume;
+};
+
+
+LabelVisitor::LabelVisitor(Volume* volume)
+	:
+	fVolume(volume)
+{
+}
+
+
+bool
+LabelVisitor::VisitLabel(struct exfat_entry* entry)
+{
+	dprintf("LabelVisitor::VisitLabel()\n");
+	char utfName[30];
+	size_t utfLength = 30;
+	unicode_to_utf8((const uchar*)entry->name_label.name,
+		entry->name_label.length * 2, (uint8*)utfName, &utfLength);
+	fVolume->SetName(utfName);
+	return true;
+}
+
+
+//	#pragma mark -
+
+
 bool
 exfat_super_block::IsValid()
 {
@@ -228,6 +261,7 @@ Volume::Volume(fs_volume* volume)
 	mutex_init(&fLock, "exfat volume");
 	fInodesClusterTree = new InodesClusterTree;
 	fInodesInoTree = new InodesInoTree;
+	memset(fName, 0, sizeof(fName));
 }
 
 
@@ -249,7 +283,6 @@ Volume::IsValidSuperBlock()
 const char*
 Volume::Name() const
 {
-	/* TODO volume name is in the root directory */
 	return fName;
 }
 
@@ -321,7 +354,11 @@ Volume::Mount(const char* deviceName, uint32 flags)
 	// all went fine
 	opener.Keep();
 
-	/*if (!fSuperBlock.label[0]) {*/
+	DirectoryIterator iterator(fRootNode);
+	LabelVisitor visitor(this);
+	iterator.Iterate(visitor);
+
+	if (fName[0] == '\0') {
 		// generate a more or less descriptive volume name
 		off_t divisor = 1ULL << 40;
 		char unit = 'T';
@@ -339,7 +376,7 @@ Volume::Mount(const char* deviceName, uint32 flags)
 
 		snprintf(fName, sizeof(fName), "%g %cB ExFAT Volume",
 			size / 10, unit);
-	//}
+	}
 
 	return B_OK;
 }

src/add-ons/kernel/file_systems/exfat/Volume.h

@@ -8,6 +8,7 @@
 
 
 #include <lock.h>
+#include <string.h>
 
 #include "exfat.h"
 #include "SplayTree.h"
@@ -108,6 +109,8 @@ public:
 								{ return fFSVolume ? fFSVolume->id : -1; }
 			fs_volume*			FSVolume() const { return fFSVolume; }
 			const char*			Name() const;
+			void				SetName(const char* name)
+								{ strlcpy(fName, name, sizeof(fName)); }
 			
 			uint32				BlockSize() const { return fBlockSize; }
 			uint32				EntriesPerBlock() const
@@ -149,8 +152,8 @@ private:
 			ino_t				fNextId;
 
 			void*				fBlockCache;
-			InodesInoTree*	fInodesInoTree;
-			InodesClusterTree* fInodesClusterTree;
+			InodesInoTree*		fInodesInoTree;
+			InodesClusterTree*	fInodesClusterTree;
 			NodeTree			fNodeTree;
 			InoTree				fInoTree;
 };