118 lines
2.8 KiB
C++
118 lines
2.8 KiB
C++
#ifndef __PASCAL_VOLUMEENTRY_H__
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#define __PASCAL_VOLUMEENTRY_H__
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#include <Pascal/Entry.h>
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#include <vector>
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#include <Device/BlockDevice.h>
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namespace Pascal {
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class VolumeEntry : public Entry {
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public:
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static unsigned ValidName(const char *);
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static VolumeEntryPointer Open(Device::BlockDevicePointer);
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static VolumeEntryPointer Create(Device::BlockDevicePointer, const char *name);
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//
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virtual ~VolumeEntry();
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const char *name() const { return _fileName; }
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unsigned fileCount() const { return _fileCount; }
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unsigned volumeBlocks() const { return _lastVolumeBlock; }
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Pascal::Date lastBoot() const { return _lastBoot; }
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unsigned freeBlocks(bool krunched = false) const;
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unsigned maxContiguousBlocks() const;
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bool canKrunch() const;
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FileEntryPointer fileAtIndex(unsigned i) const;
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FileEntryPointer fileByName(const char *name) const;
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void *loadBlock(unsigned block);
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void unloadBlock(unsigned block, bool dirty = false);
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void readBlock(unsigned block, void *);
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void writeBlock(unsigned block, void *);
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void sync();
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bool readOnly() { return _device->readOnly(); }
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int unlink(const char *name);
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int rename(const char *oldName, const char *newName);
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int copy(const char *oldName, const char *newName);
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FileEntryPointer create(const char *name, unsigned blocks);
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int krunch();
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VolumeEntry(Device::BlockDevicePointer, const char *name);
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VolumeEntry(Device::BlockDevicePointer);
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protected:
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virtual void writeDirectoryEntry(LittleEndian::IOBuffer *);
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private:
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friend class FileEntry;
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VolumeEntry();
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VolumeEntryPointer thisPointer()
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{
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return STATIC_POINTER_CAST(VolumeEntry, shared_from_this());
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}
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void init(void *);
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void setParents();
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uint8_t *readDirectoryHeader();
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void writeDirectoryHeader(void *);
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uint8_t *readBlocks(unsigned startingBlock, unsigned count);
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void writeBlocks(void *buffer, unsigned startingBlock, unsigned count);
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void writeEntry(FileEntry *e);
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void writeEntry();
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void calcMaxFileSize();
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unsigned _fileNameLength;
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char _fileName[8];
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unsigned _lastVolumeBlock;
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unsigned _fileCount;
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unsigned _accessTime;
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Pascal::Date _lastBoot;
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std::vector<FileEntryPointer> _files;
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unsigned _inodeGenerator;
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Device::BlockDevicePointer _device;
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Device::BlockCachePointer _cache;
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};
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}
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#endif
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