mirror of
https://github.com/ksherlock/profuse.git
synced 2024-12-22 20:29:59 +00:00
use smart pointer for everything (not yet tested)
git-svn-id: https://profuse.googlecode.com/svn/branches/v2@350 aa027e90-d47c-11dd-86d7-074df07e0730
This commit is contained in:
ksherlock
parent
e71ab41481
commit
89e80dcc10
@ -64,7 +64,6 @@ Entry::Entry()
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_lastBlock = 0;
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_fileKind = 0;
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_inode = 0;
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_parent = NULL;
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_address = NULL;
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}
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@ -1,6 +1,8 @@
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#ifndef __PASCAL_ENTRY_H__
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#define __PASCAL_ENTRY_H__
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#include <tr1/memory>
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#include <Pascal/Date.h>
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@ -31,7 +33,14 @@ namespace Pascal {
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class FileEntry;
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class VolumeEntry;
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class Entry {
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typedef std::tr1::shared_ptr<FileEntry> FileEntryPointer;
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typedef std::tr1::shared_ptr<VolumeEntry> VolumeEntryPointer;
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typedef std::tr1::weak_ptr<FileEntry> FileEntryWeakPointer;
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typedef std::tr1::weak_ptr<VolumeEntry> VolumeEntryWeakPointer;
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class Entry : public std::tr1::enable_shared_from_this<Entry> {
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public:
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@ -47,7 +56,7 @@ namespace Pascal {
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unsigned inode() const { return _inode; }
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void setInode(unsigned inode) { _inode = inode; }
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VolumeEntry *parent() { return _parent; }
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VolumeEntryWeakPointer parent() { return _parent; }
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protected:
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@ -70,7 +79,7 @@ namespace Pascal {
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friend class VolumeEntry;
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VolumeEntry *_parent;
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VolumeEntryWeakPointer _parent;
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unsigned _address;
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};
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@ -42,6 +42,16 @@ unsigned FileEntry::ValidName(const char *cp)
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return Entry::ValidName(cp, 15);
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}
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FileEntryPointer FileEntry::Open(void *vp)
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{
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return FileEntryPointer(new FileEntry(vp));
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}
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FileEntryPointer FileEntry::Create(const char *name, unsigned fileKind)
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{
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return FileEntryPointer(new FileEntry(name, fileKind));
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}
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FileEntry::FileEntry(void *vp) :
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Entry(vp)
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{
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@ -99,7 +109,10 @@ void FileEntry::setFileKind(unsigned kind)
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_pageSize = NULL;
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}
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parent()->writeEntry(this);
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VolumeEntryPointer v = parent().lock();
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// throw if expired?
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if (v) v->writeEntry(this);
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}
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@ -194,7 +207,9 @@ int FileEntry::truncate(unsigned newSize)
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return -1;
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_modification = Date::Today();
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parent()->writeEntry(this);
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VolumeEntryPointer v = parent().lock();
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if (v) v->writeEntry(this);
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return 0;
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}
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@ -211,6 +226,8 @@ int FileEntry::truncateCommon(unsigned newSize)
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unsigned currentSize = fileSize();
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VolumeEntryPointer v = parent().lock();
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if (newSize == currentSize) return 0;
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if (newSize > currentSize)
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{
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@ -228,12 +245,13 @@ int FileEntry::truncateCommon(unsigned newSize)
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{
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// last page not full
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unsigned count = std::min(512 - _lastByte, remainder);
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uint8_t *address = (uint8_t *)parent()->loadBlock(block);
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std::memset(address + _lastByte, 0, count);
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parent()->unloadBlock(block, true);
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if (v)
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{
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uint8_t *address = (uint8_t *)v->loadBlock(block);
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std::memset(address + _lastByte, 0, count);
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v->unloadBlock(block, true);
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}
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remainder -= count;
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}
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block++;
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@ -241,12 +259,12 @@ int FileEntry::truncateCommon(unsigned newSize)
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while (remainder)
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{
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unsigned count = std::min(512u, remainder);
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uint8_t *address = (uint8_t *)parent()->loadBlock(block);
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std::memset(address, 0, count);
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parent()->unloadBlock(block, true);
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if (v)
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{
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uint8_t *address = (uint8_t *)v->loadBlock(block);
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std::memset(address, 0, count);
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v->unloadBlock(block, true);
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}
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remainder -= count;
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block++;
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}
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@ -264,7 +282,15 @@ int FileEntry::write(TextWriter &text)
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{
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unsigned blocks = text.blocks();
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if (parent()->readOnly())
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VolumeEntryPointer v = parent().lock();
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if (!v)
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{
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errno = EROFS;
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return -1;
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}
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if (v->readOnly())
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{
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errno = EROFS;
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return -1;
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@ -286,7 +312,7 @@ int FileEntry::write(TextWriter &text)
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for (unsigned i = 0; i < blocks; ++i)
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{
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void *buffer = text.data(i);
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parent()->writeBlock(_firstBlock + i, buffer);
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v->writeBlock(_firstBlock + i, buffer);
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}
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@ -294,8 +320,8 @@ int FileEntry::write(TextWriter &text)
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setFileSize(blocks * 512);
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parent()->writeEntry(this);
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parent()->sync();
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v->writeEntry(this);
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v->sync();
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return blocks * 512;
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}
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@ -304,8 +330,15 @@ int FileEntry::write(const uint8_t *buffer, unsigned size, unsigned offset)
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{
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#undef __METHOD__
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#define __METHOD__ "FileEntry::write"
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if (parent()->readOnly())
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VolumeEntryPointer v = parent().lock();
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if (!v)
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{
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errno = EROFS;
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return -1;
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}
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if (v->readOnly())
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{
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errno = EROFS;
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return -1;
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@ -342,10 +375,10 @@ int FileEntry::write(const uint8_t *buffer, unsigned size, unsigned offset)
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if (start)
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{
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unsigned count = std::min(512 - start, remainder);
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uint8_t *address = (uint8_t *)parent()->loadBlock(block);
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uint8_t *address = (uint8_t *)v->loadBlock(block);
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std::memcpy(address + start, buffer, count);
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parent()->unloadBlock(block, true);
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v->unloadBlock(block, true);
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remainder -= count;
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buffer += count;
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@ -354,12 +387,12 @@ int FileEntry::write(const uint8_t *buffer, unsigned size, unsigned offset)
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while (remainder)
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{
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uint8_t *address = (uint8_t *)parent()->loadBlock(block);
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uint8_t *address = (uint8_t *)v->loadBlock(block);
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unsigned count = std::min(512u, size);
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std::memcpy(address, buffer, count);
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parent()->unloadBlock(block, true);
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v->unloadBlock(block, true);
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remainder -= count;
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buffer += count;
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@ -371,7 +404,7 @@ int FileEntry::write(const uint8_t *buffer, unsigned size, unsigned offset)
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_modification = Date::Today();
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parent()->writeEntry(this);
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v->writeEntry(this);
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return size;
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}
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@ -419,6 +452,13 @@ int FileEntry::dataRead(uint8_t *buffer, unsigned size, unsigned offset)
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unsigned count = 0;
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unsigned block = 0;
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VolumeEntryPointer v = parent().lock();
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if (!v)
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{
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errno = EROFS;
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return 0;
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}
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block = _firstBlock + (offset / 512);
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@ -433,7 +473,7 @@ int FileEntry::dataRead(uint8_t *buffer, unsigned size, unsigned offset)
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{
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unsigned bytes = std::min(offset % 512, size);
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parent()->readBlock(block++, tmp);
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v->readBlock(block++, tmp);
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std::memcpy(buffer, tmp + 512 - bytes, bytes);
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@ -448,7 +488,7 @@ int FileEntry::dataRead(uint8_t *buffer, unsigned size, unsigned offset)
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while (size >= 512)
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{
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parent()->readBlock(block++, buffer);
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v->readBlock(block++, buffer);
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buffer += 512;
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count += 512;
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@ -460,7 +500,7 @@ int FileEntry::dataRead(uint8_t *buffer, unsigned size, unsigned offset)
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*/
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if (size)
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{
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parent()->readBlock(block, tmp);
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v->readBlock(block, tmp);
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std::memcpy(buffer, tmp, size);
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count += size;
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@ -589,13 +629,20 @@ unsigned FileEntry::textReadPage(unsigned block, uint8_t *in)
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// reads up to 2 blocks.
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// assumes block within _startBlock ... _lastBlock - 1
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parent()->readBlock(block, in);
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VolumeEntryPointer v = parent().lock();
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if (!v)
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{
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errno = EROFS;
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return 0;
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}
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v->readBlock(block, in);
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if (block + 1 == _lastBlock)
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{
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return _lastByte;
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}
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parent()->readBlock(block + 1, in + 512);
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v->readBlock(block + 1, in + 512);
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if (block +2 == _lastBlock)
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{
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return 512 + _lastByte;
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@ -22,8 +22,10 @@ namespace Pascal {
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static bool Uncompress(std::string& text);
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FileEntry(const char *name, unsigned fileKind);
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FileEntry(void *vp);
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static FileEntryPointer Create(const char *name, unsigned fileKind);
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static FileEntryPointer Open(void *vp);
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virtual ~FileEntry();
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@ -54,6 +56,15 @@ namespace Pascal {
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friend class VolumeEntry;
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FileEntry(const char *name, unsigned fileKind);
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FileEntry(void *vp);
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FileEntryPointer thisPointer()
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{
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return std::tr1::static_pointer_cast<FileEntry>(shared_from_this());
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}
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void setName(const char *name);
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int truncateCommon(unsigned newSize);
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@ -61,6 +61,26 @@ unsigned VolumeEntry::ValidName(const char *cp)
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return Entry::ValidName(cp, 7);
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}
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VolumeEntryPointer VolumeEntry::Open(Device::BlockDevicePointer device)
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{
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VolumeEntryPointer ptr(new VolumeEntry(device));
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return ptr;
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}
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VolumeEntryPointer VolumeEntry::Create(Device::BlockDevicePointer device, const char *name)
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{
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VolumeEntryPointer ptr(new VolumeEntry(device, name));
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// set up the weak references from the file entry to this.
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if (ptr) ptr->setParents();
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return ptr;
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}
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VolumeEntry::VolumeEntry()
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{
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_fileNameLength = 0;
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@ -74,7 +94,7 @@ VolumeEntry::VolumeEntry()
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_inodeGenerator = 1;
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}
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VolumeEntry::VolumeEntry(const char *name, Device::BlockDevicePointer device) :
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VolumeEntry::VolumeEntry(Device::BlockDevicePointer device, const char *name) :
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_device(device)
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{
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#undef __METHOD__
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@ -166,88 +186,79 @@ VolumeEntry::VolumeEntry(Device::BlockDevicePointer device)
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}
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// now load up all the children.
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// if this throws, memory could be lost...
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// the parent cannot be set (yet), since we need a shared_ptr to create a weak_ptr.
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try
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{
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std::vector<FileEntry *>::iterator iter;
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unsigned block;
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for (unsigned i = 1; i <= _fileCount; ++i)
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{
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std::auto_ptr<FileEntry> child;
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//
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child.reset(new FileEntry(buffer.get() + i * 0x1a));
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child->setInode(++_inodeGenerator);
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child->_parent = this;
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child->_address = 512 * 2 + i * 0x1a;
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_files.push_back(child.release());
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}
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// sanity check _firstBlock, _lastBlock?
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block = _lastBlock;
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for (iter = _files.begin(); iter != _files.end(); ++iter)
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{
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FileEntry *e = *iter;
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bool error = false;
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if (e->_firstBlock > e->_lastBlock)
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error = true;
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std::vector<FileEntryPointer>::iterator iter;
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if (e->_firstBlock >= _lastVolumeBlock)
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error = true;
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if (e->_lastBlock > _lastVolumeBlock)
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error = true;
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if (e->_firstBlock < block)
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error = true;
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if (error)
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throw ProDOSException(__METHOD__ ": Invalid file entry.", ProFUSE::dirError);
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block = e->_lastBlock;
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}
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calcMaxFileSize();
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}
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catch (...)
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unsigned block;
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for (unsigned i = 1; i <= _fileCount; ++i)
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{
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std::vector<FileEntry *>::iterator iter;
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for(iter = _files.begin(); iter != _files.end(); ++iter)
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{
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if (*iter) delete *iter;
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}
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throw;
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FileEntryPointer child;
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//
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child = FileEntry::Open(buffer.get() + i * 0x1a);
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child->setInode(++_inodeGenerator);
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// need to set later....
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//child->_parent = this;
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child->_address = 512 * 2 + i * 0x1a;
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_files.push_back(child);
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}
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// sanity check _firstBlock, _lastBlock?
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block = _lastBlock;
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for (iter = _files.begin(); iter != _files.end(); ++iter)
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{
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FileEntryPointer e = *iter;
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bool error = false;
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if (e->_firstBlock > e->_lastBlock)
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error = true;
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if (e->_firstBlock >= _lastVolumeBlock)
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error = true;
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if (e->_lastBlock > _lastVolumeBlock)
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error = true;
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if (e->_firstBlock < block)
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error = true;
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if (error)
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throw ProDOSException(__METHOD__ ": Invalid file entry.", ProFUSE::dirError);
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block = e->_lastBlock;
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}
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calcMaxFileSize();
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}
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VolumeEntry::~VolumeEntry()
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{
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std::vector<FileEntry *>::iterator iter;
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for(iter = _files.begin(); iter != _files.end(); ++iter)
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{
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if (*iter) delete *iter;
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}
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}
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void VolumeEntry::setParents()
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{
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// parent is this....
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VolumeEntryWeakPointer parent(thisPointer());
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std::vector<FileEntryPointer>::iterator iter;
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for (iter = _files.begin(); iter != _files.end(); ++iter)
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{
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FileEntryPointer e = *iter;
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e->_parent = parent;
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}
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}
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void VolumeEntry::init(void *vp)
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{
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#undef __METHOD__
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@ -278,20 +289,20 @@ void VolumeEntry::init(void *vp)
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}
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FileEntry *VolumeEntry::fileAtIndex(unsigned i) const
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FileEntryPointer VolumeEntry::fileAtIndex(unsigned i) const
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{
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return i < _files.size() ? _files[i] : NULL;
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return i < _files.size() ? _files[i] : FileEntryPointer();
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}
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FileEntry *VolumeEntry::fileByName(const char *name) const
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FileEntryPointer VolumeEntry::fileByName(const char *name) const
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{
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std::vector<FileEntry *>::const_iterator iter;
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std::vector<FileEntryPointer>::const_iterator iter;
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for(iter = _files.begin(); iter != _files.end(); ++iter)
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{
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FileEntry *e = *iter;
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FileEntryPointer e = *iter;
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if (::strcasecmp(name, e->name()) == 0) return e;
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}
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return NULL;
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return FileEntryPointer();
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}
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/*
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@ -303,7 +314,7 @@ int VolumeEntry::unlink(const char *name)
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{
|
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unsigned index;
|
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|
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std::vector<FileEntry *>::iterator iter;
|
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std::vector<FileEntryPointer>::iterator iter;
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|
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if (_device->readOnly())
|
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{
|
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@ -315,7 +326,7 @@ int VolumeEntry::unlink(const char *name)
|
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|
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for (iter = _files.begin(); iter != _files.end(); ++iter)
|
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{
|
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FileEntry *e = *iter;
|
||||
FileEntryPointer e = *iter;
|
||||
if (::strcasecmp(name, e->name()) == 0)
|
||||
{
|
||||
|
||||
@ -323,12 +334,11 @@ int VolumeEntry::unlink(const char *name)
|
||||
// _maxFileSize.
|
||||
if (iter != _files.begin())
|
||||
{
|
||||
FileEntry *prev = iter[-1];
|
||||
FileEntryPointer prev = iter[-1];
|
||||
prev->_maxFileSize += e->_maxFileSize;
|
||||
}
|
||||
|
||||
delete e;
|
||||
*iter = NULL;
|
||||
iter->reset();
|
||||
break;
|
||||
}
|
||||
}
|
||||
@ -347,7 +357,7 @@ int VolumeEntry::unlink(const char *name)
|
||||
// reset addresses.
|
||||
for ( ; iter != _files.end(); ++iter)
|
||||
{
|
||||
FileEntry *e = *iter;
|
||||
FileEntryPointer e = *iter;
|
||||
e->_address -= 0x1a;
|
||||
}
|
||||
|
||||
@ -380,7 +390,7 @@ int VolumeEntry::unlink(const char *name)
|
||||
*/
|
||||
int VolumeEntry::rename(const char *oldName, const char *newName)
|
||||
{
|
||||
FileEntry *e;
|
||||
FileEntryPointer e;
|
||||
|
||||
|
||||
// check if read only.
|
||||
@ -417,7 +427,7 @@ int VolumeEntry::rename(const char *oldName, const char *newName)
|
||||
|
||||
// and commit to disk.
|
||||
|
||||
writeEntry(e);
|
||||
writeEntry(e.get());
|
||||
_cache->sync();
|
||||
|
||||
return 0;
|
||||
@ -431,8 +441,8 @@ int VolumeEntry::rename(const char *oldName, const char *newName)
|
||||
*/
|
||||
int VolumeEntry::copy(const char *oldName, const char *newName)
|
||||
{
|
||||
FileEntry *oldEntry;
|
||||
FileEntry *newEntry;
|
||||
FileEntryPointer oldEntry;
|
||||
FileEntryPointer newEntry;
|
||||
// check if read only.
|
||||
if (_device->readOnly())
|
||||
{
|
||||
@ -482,14 +492,14 @@ int VolumeEntry::copy(const char *oldName, const char *newName)
|
||||
return -1;
|
||||
}
|
||||
|
||||
newEntry = NULL;
|
||||
newEntry.reset();
|
||||
|
||||
if (unlink(newName) != 0) return -1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
if (newEntry == NULL)
|
||||
if (!newEntry)
|
||||
{
|
||||
// newName does not exist (or was just deleted), so create a new file (if possible) and write to it.
|
||||
if (maxContiguousBlocks() < blocks)
|
||||
@ -534,7 +544,7 @@ int VolumeEntry::copy(const char *oldName, const char *newName)
|
||||
*
|
||||
*
|
||||
*/
|
||||
FileEntry *VolumeEntry::create(const char *name, unsigned blocks)
|
||||
FileEntryPointer VolumeEntry::create(const char *name, unsigned blocks)
|
||||
{
|
||||
// 0. check read only access.
|
||||
// 1. verify < 77 file names.
|
||||
@ -547,46 +557,45 @@ FileEntry *VolumeEntry::create(const char *name, unsigned blocks)
|
||||
unsigned lastBlock = _lastBlock;
|
||||
|
||||
|
||||
std::auto_ptr<FileEntry>entry;
|
||||
FileEntry *prev = NULL;
|
||||
FileEntry *curr = NULL;
|
||||
std::vector<FileEntry *>::iterator iter;
|
||||
FileEntryPointer entry;
|
||||
FileEntryPointer prev;
|
||||
FileEntryPointer curr;
|
||||
std::vector<FileEntryPointer>::iterator iter;
|
||||
|
||||
|
||||
if (readOnly())
|
||||
{
|
||||
errno = EROFS;
|
||||
return NULL;
|
||||
return FileEntryPointer();
|
||||
}
|
||||
|
||||
if (_fileCount == kMaxFiles)
|
||||
{
|
||||
errno = ENOSPC;
|
||||
return NULL;
|
||||
return FileEntryPointer();
|
||||
}
|
||||
|
||||
|
||||
if (!FileEntry::ValidName(name))
|
||||
{
|
||||
errno = EINVAL;
|
||||
return NULL;
|
||||
return FileEntryPointer();
|
||||
}
|
||||
|
||||
if (fileByName(name))
|
||||
{
|
||||
errno = EEXIST;
|
||||
return NULL;
|
||||
return FileEntryPointer();
|
||||
}
|
||||
|
||||
|
||||
entry.reset(new FileEntry(name, kUntypedFile));
|
||||
entry = FileEntry::Create(name, kUntypedFile);
|
||||
|
||||
|
||||
std::auto_ptr<uint8_t> buffer(readDirectoryHeader());
|
||||
ProFUSE::auto_array<uint8_t> buffer(readDirectoryHeader());
|
||||
|
||||
for (iter = _files.begin(); iter != _files.end(); ++iter)
|
||||
{
|
||||
FileEntry *e = *iter;
|
||||
FileEntryPointer e = *iter;
|
||||
|
||||
unsigned freeSpace = e->_firstBlock - _lastBlock;
|
||||
// this could do something stupid like selecting a slot with only 1 free block but too bad.
|
||||
@ -611,12 +620,13 @@ FileEntry *VolumeEntry::create(const char *name, unsigned blocks)
|
||||
// keep track of the index *before* the insert.
|
||||
unsigned index = distance(_files.begin(), iter); // current index.
|
||||
|
||||
iter = _files.insert(iter, entry.get());
|
||||
iter = _files.insert(iter, entry);
|
||||
++_fileCount;
|
||||
|
||||
curr = entry.release();
|
||||
curr = entry;
|
||||
|
||||
curr->_parent = this;
|
||||
//curr->_parent = this;
|
||||
curr->_parent = VolumeEntryWeakPointer(thisPointer());
|
||||
curr->_firstBlock = lastBlock;
|
||||
curr->_lastBlock = lastBlock + 1;
|
||||
curr->_lastByte = 0;
|
||||
@ -638,15 +648,16 @@ FileEntry *VolumeEntry::create(const char *name, unsigned blocks)
|
||||
if (freeSpace < blocks)
|
||||
{
|
||||
errno = ENOSPC;
|
||||
return NULL;
|
||||
return FileEntryPointer();
|
||||
}
|
||||
|
||||
_files.push_back(entry.get());
|
||||
_files.push_back(entry);
|
||||
_fileCount++;
|
||||
|
||||
curr = entry.release();
|
||||
curr = entry;
|
||||
|
||||
curr->_parent = this;
|
||||
//curr->_parent = this;
|
||||
curr->_parent = VolumeEntryWeakPointer(thisPointer());
|
||||
curr->_firstBlock = lastBlock;
|
||||
curr->_lastBlock = lastBlock + 1;
|
||||
curr->_lastByte = 0;
|
||||
@ -658,7 +669,7 @@ FileEntry *VolumeEntry::create(const char *name, unsigned blocks)
|
||||
prev->_maxFileSize = prev->blocks() * 512;
|
||||
}
|
||||
|
||||
writeEntry(curr);
|
||||
writeEntry(curr.get());
|
||||
writeEntry(); // header.
|
||||
|
||||
}
|
||||
@ -670,7 +681,7 @@ FileEntry *VolumeEntry::create(const char *name, unsigned blocks)
|
||||
unsigned address = 2 * 512 + 0x1a;
|
||||
for (iter = _files.begin(); iter != _files.end(); ++iter, address += 0x1a)
|
||||
{
|
||||
FileEntry *e = *iter;
|
||||
FileEntryPointer e = *iter;
|
||||
e->_address = address;
|
||||
}
|
||||
|
||||
@ -706,7 +717,7 @@ int VolumeEntry::krunch()
|
||||
{
|
||||
unsigned prevBlock;
|
||||
|
||||
std::vector<FileEntry *>::const_iterator iter;
|
||||
std::vector<FileEntryPointer>::const_iterator iter;
|
||||
|
||||
bool gap = false;
|
||||
|
||||
@ -716,7 +727,7 @@ int VolumeEntry::krunch()
|
||||
|
||||
for (iter = _files.begin(); iter != _files.end(); ++iter)
|
||||
{
|
||||
FileEntry *e = *iter;
|
||||
FileEntryPointer e = *iter;
|
||||
|
||||
unsigned first = e->firstBlock();
|
||||
unsigned last = e->lastBlock();
|
||||
@ -751,7 +762,7 @@ int VolumeEntry::krunch()
|
||||
unsigned offset = 0;
|
||||
for (iter = _files.begin(); iter != _files.end(); ++iter, ++offset)
|
||||
{
|
||||
FileEntry *e = *iter;
|
||||
FileEntryPointer e = *iter;
|
||||
|
||||
b.setOffset(0x1a + 0x1a * offset);
|
||||
|
||||
@ -812,13 +823,13 @@ unsigned VolumeEntry::freeBlocks(bool krunched) const
|
||||
|
||||
if (krunched)
|
||||
{
|
||||
std::vector<FileEntry *>::const_iterator iter;
|
||||
std::vector<FileEntryPointer>::const_iterator iter;
|
||||
|
||||
lastBlock = _lastBlock;
|
||||
|
||||
for (iter = _files.begin(); iter != _files.end(); ++iter)
|
||||
{
|
||||
const FileEntry *e = *iter;
|
||||
const FileEntryPointer e = *iter;
|
||||
freeBlocks += e->_firstBlock - lastBlock;
|
||||
lastBlock = e->_lastBlock;
|
||||
}
|
||||
@ -842,13 +853,13 @@ unsigned VolumeEntry::freeBlocks(bool krunched) const
|
||||
bool VolumeEntry::canKrunch() const
|
||||
{
|
||||
|
||||
std::vector<FileEntry *>::const_iterator iter;
|
||||
std::vector<FileEntryPointer>::const_iterator iter;
|
||||
|
||||
unsigned lastBlock = _lastBlock;
|
||||
|
||||
for (iter = _files.begin(); iter != _files.end(); ++iter)
|
||||
{
|
||||
const FileEntry *e = *iter;
|
||||
const FileEntryPointer e = *iter;
|
||||
if (e->_lastBlock != lastBlock) return true;
|
||||
lastBlock = e->_lastBlock;
|
||||
}
|
||||
@ -864,13 +875,13 @@ unsigned VolumeEntry::maxContiguousBlocks() const
|
||||
{
|
||||
unsigned max = 0;
|
||||
|
||||
std::vector<FileEntry *>::const_iterator iter;
|
||||
std::vector<FileEntryPointer>::const_iterator iter;
|
||||
|
||||
unsigned lastBlock = _lastBlock;
|
||||
|
||||
for (iter = _files.begin(); iter != _files.end(); ++iter)
|
||||
{
|
||||
const FileEntry *e = *iter;
|
||||
const FileEntryPointer e = *iter;
|
||||
unsigned free = e->_firstBlock - lastBlock;
|
||||
max = std::max(max, free);
|
||||
|
||||
@ -999,11 +1010,11 @@ void VolumeEntry::writeEntry(FileEntry *e)
|
||||
// set _maxFileSize for all entries.
|
||||
void VolumeEntry::calcMaxFileSize()
|
||||
{
|
||||
std::vector<FileEntry *>::reverse_iterator riter;
|
||||
std::vector<FileEntryPointer>::reverse_iterator riter;
|
||||
unsigned block = _lastVolumeBlock;
|
||||
for (riter = _files.rbegin(); riter != _files.rend(); ++riter)
|
||||
{
|
||||
FileEntry *e = *riter;
|
||||
FileEntryPointer e = *riter;
|
||||
e->_maxFileSize = (block - e->_firstBlock) * 512;
|
||||
block = e->_firstBlock;
|
||||
}
|
||||
|
||||
@ -9,20 +9,18 @@
|
||||
|
||||
namespace Pascal {
|
||||
|
||||
class FileEntry;
|
||||
|
||||
class VolumeEntry : public Entry {
|
||||
|
||||
public:
|
||||
|
||||
|
||||
static unsigned ValidName(const char *);
|
||||
|
||||
static VolumeEntryPointer Open(Device::BlockDevicePointer);
|
||||
static VolumeEntryPointer Create(Device::BlockDevicePointer, const char *name);
|
||||
|
||||
//
|
||||
|
||||
// create new
|
||||
VolumeEntry(const char *name, Device::BlockDevicePointer);
|
||||
|
||||
// open existing
|
||||
VolumeEntry(Device::BlockDevicePointer);
|
||||
virtual ~VolumeEntry();
|
||||
|
||||
const char *name() const { return _fileName; }
|
||||
@ -36,8 +34,8 @@ namespace Pascal {
|
||||
bool canKrunch() const;
|
||||
|
||||
|
||||
FileEntry *fileAtIndex(unsigned i) const;
|
||||
FileEntry *fileByName(const char *name) const;
|
||||
FileEntryPointer fileAtIndex(unsigned i) const;
|
||||
FileEntryPointer fileByName(const char *name) const;
|
||||
|
||||
|
||||
void *loadBlock(unsigned block);
|
||||
@ -53,7 +51,7 @@ namespace Pascal {
|
||||
int unlink(const char *name);
|
||||
int rename(const char *oldName, const char *newName);
|
||||
int copy(const char *oldName, const char *newName);
|
||||
FileEntry *create(const char *name, unsigned blocks);
|
||||
FileEntryPointer create(const char *name, unsigned blocks);
|
||||
|
||||
|
||||
int krunch();
|
||||
@ -65,10 +63,21 @@ namespace Pascal {
|
||||
private:
|
||||
|
||||
friend class FileEntry;
|
||||
|
||||
|
||||
VolumeEntry();
|
||||
|
||||
VolumeEntry(Device::BlockDevicePointer, const char *name);
|
||||
VolumeEntry(Device::BlockDevicePointer);
|
||||
|
||||
VolumeEntryPointer thisPointer()
|
||||
{
|
||||
return std::tr1::static_pointer_cast<VolumeEntry>(shared_from_this());
|
||||
}
|
||||
|
||||
void init(void *);
|
||||
void setParents();
|
||||
|
||||
|
||||
|
||||
|
||||
uint8_t *readDirectoryHeader();
|
||||
@ -90,7 +99,7 @@ namespace Pascal {
|
||||
unsigned _accessTime;
|
||||
Pascal::Date _lastBoot;
|
||||
|
||||
std::vector<FileEntry *> _files;
|
||||
std::vector<FileEntryPointer> _files;
|
||||
unsigned _inodeGenerator;
|
||||
|
||||
Device::BlockDevicePointer _device;
|
||||
|
||||
18
bin/apfm.cpp
18
bin/apfm.cpp
@ -263,7 +263,7 @@ void printUnusedEntry(unsigned block, unsigned size)
|
||||
std::printf("< UNUSED > %4u %4u\n", size, block);
|
||||
}
|
||||
|
||||
void printFileEntry(Pascal::FileEntry *e, bool extended)
|
||||
void printFileEntry(Pascal::FileEntryPointer e, bool extended)
|
||||
{
|
||||
Pascal::Date dt = e->modification();
|
||||
|
||||
@ -329,7 +329,7 @@ int action_ls(int argc, char **argv, Pascal::VolumeEntry *volume)
|
||||
|
||||
for (unsigned i = 0; i < fileCount; ++i)
|
||||
{
|
||||
Pascal::FileEntry *e = volume->fileAtIndex(i);
|
||||
Pascal::FileEntryPointer e = volume->fileAtIndex(i);
|
||||
if (!e) continue;
|
||||
|
||||
|
||||
@ -409,7 +409,7 @@ int action_cat(unsigned argc, char **argv, Pascal::VolumeEntry *volume)
|
||||
unsigned fileSize;
|
||||
unsigned offset;
|
||||
uint8_t buffer[512];
|
||||
Pascal::FileEntry *e = NULL;
|
||||
Pascal::FileEntryPointer e;
|
||||
// find it...
|
||||
|
||||
e = volume->fileByName(argv[i]);
|
||||
@ -588,7 +588,7 @@ int action_rm(int argc, char **argv, Pascal::VolumeEntry *volume)
|
||||
// TODO -- catch errors ?
|
||||
for (int i = 0; i < argc; ++i)
|
||||
{
|
||||
Pascal::FileEntry *e = volume->fileByName(argv[i]);
|
||||
Pascal::FileEntryPointer e = volume->fileByName(argv[i]);
|
||||
|
||||
if (!e)
|
||||
{
|
||||
@ -691,7 +691,7 @@ int action_get(int argc, char **argv, Pascal::VolumeEntry *volume)
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
Pascal::FileEntry *entry;
|
||||
Pascal::FileEntryPointer entry;
|
||||
|
||||
switch(argc)
|
||||
{
|
||||
@ -910,7 +910,7 @@ int action_put(int argc, char **argv, Pascal::VolumeEntry *volume)
|
||||
|
||||
blocks = text.blocks();
|
||||
|
||||
Pascal::FileEntry *entry = volume->create(outfile, blocks);
|
||||
Pascal::FileEntryPointer entry = volume->create(outfile, blocks);
|
||||
if (!entry)
|
||||
{
|
||||
perror(NULL);
|
||||
@ -923,7 +923,7 @@ int action_put(int argc, char **argv, Pascal::VolumeEntry *volume)
|
||||
}
|
||||
else
|
||||
{
|
||||
Pascal::FileEntry *entry = volume->create(outfile, blocks);
|
||||
Pascal::FileEntryPointer entry = volume->create(outfile, blocks);
|
||||
if (!entry)
|
||||
{
|
||||
perror(NULL);
|
||||
@ -962,7 +962,7 @@ int action_put(int argc, char **argv, Pascal::VolumeEntry *volume)
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
std::auto_ptr<Pascal::VolumeEntry> volume;
|
||||
Pascal::VolumeEntryPointer volume;
|
||||
Device::BlockDevicePointer device;
|
||||
|
||||
unsigned fmt = 0;
|
||||
@ -1027,7 +1027,7 @@ int main(int argc, char **argv)
|
||||
|
||||
device = Device::BlockDevice::Open(file, commandFlags(actionCode), fmt);
|
||||
|
||||
volume.reset( new Pascal::VolumeEntry(device));
|
||||
volume = Pascal::VolumeEntry::Open(device);
|
||||
device.reset();
|
||||
|
||||
switch (actionCode)
|
||||
|
||||
@ -169,7 +169,7 @@ int main(int argc, char **argv)
|
||||
int multithread = false;
|
||||
|
||||
|
||||
std::auto_ptr<Pascal::VolumeEntry> volume;
|
||||
Pascal::VolumeEntryPointer volume;
|
||||
|
||||
|
||||
init_ops(&pascal_ops);
|
||||
@ -210,8 +210,7 @@ int main(int argc, char **argv)
|
||||
exit(1);
|
||||
}
|
||||
|
||||
volume.reset( new Pascal::VolumeEntry(device) );
|
||||
device.reset();
|
||||
volume = Pascal::VolumeEntry::Open(device);
|
||||
}
|
||||
catch (ProFUSE::POSIXException &e)
|
||||
{
|
||||
|
||||
@ -56,18 +56,23 @@
|
||||
using namespace Pascal;
|
||||
|
||||
|
||||
static FileEntry *findChild(VolumeEntry *volume, unsigned inode)
|
||||
// fd_table is files which have been open.
|
||||
// fd_table_available is a list of indexes in fd_table which are not currently used.
|
||||
static std::vector<FileEntryPointer> fd_table;
|
||||
static std::vector<unsigned> fd_table_available;
|
||||
|
||||
static FileEntryPointer findChild(VolumeEntry *volume, unsigned inode)
|
||||
{
|
||||
|
||||
for (unsigned i = 0, l = volume->fileCount(); i < l; ++i)
|
||||
{
|
||||
FileEntry *child = volume->fileAtIndex(i);
|
||||
FileEntryPointer child = volume->fileAtIndex(i);
|
||||
if (!child) continue;
|
||||
|
||||
if (inode == child->inode()) return child;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
return FileEntryPointer();
|
||||
}
|
||||
|
||||
static void pascal_init(void *userdata, struct fuse_conn_info *conn)
|
||||
@ -82,7 +87,7 @@ static void pascal_init(void *userdata, struct fuse_conn_info *conn)
|
||||
|
||||
for (unsigned i = 0, l = volume->fileCount(); i < l; ++i)
|
||||
{
|
||||
FileEntry *child = volume->fileAtIndex(i);
|
||||
FileEntryPointer child = volume->fileAtIndex(i);
|
||||
child->fileSize();
|
||||
}
|
||||
|
||||
@ -105,7 +110,7 @@ static void pascal_listxattr(fuse_req_t req, fuse_ino_t ino, size_t size)
|
||||
DEBUGNAME()
|
||||
|
||||
VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
|
||||
FileEntry *file;
|
||||
FileEntryPointer file;
|
||||
std::string attr;
|
||||
unsigned attrSize;
|
||||
|
||||
@ -149,7 +154,7 @@ static void pascal_getxattr(fuse_req_t req, fuse_ino_t ino, const char *name, si
|
||||
|
||||
|
||||
VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
|
||||
FileEntry *file;
|
||||
FileEntryPointer file;
|
||||
std::string attr(name);
|
||||
|
||||
ERROR(ino == 1, ENOATTR)
|
||||
@ -269,7 +274,7 @@ static void pascal_readdir(fuse_req_t req, fuse_ino_t ino, size_t size, off_t of
|
||||
{
|
||||
unsigned tmp;
|
||||
|
||||
FileEntry *file = volume->fileAtIndex(i);
|
||||
FileEntryPointer file = volume->fileAtIndex(i);
|
||||
if (file == NULL) break; //?
|
||||
|
||||
// only these fields are used.
|
||||
@ -352,7 +357,7 @@ static void pascal_lookup(fuse_req_t req, fuse_ino_t parent, const char *name)
|
||||
|
||||
for (unsigned i = 0, l = volume->fileCount(); i < l; ++i)
|
||||
{
|
||||
FileEntry *file = volume->fileAtIndex(i);
|
||||
FileEntryPointer file = volume->fileAtIndex(i);
|
||||
if (file == NULL) break;
|
||||
|
||||
if (::strcasecmp(file->name(), name)) continue;
|
||||
@ -363,7 +368,7 @@ static void pascal_lookup(fuse_req_t req, fuse_ino_t parent, const char *name)
|
||||
entry.entry_timeout = 0.0;
|
||||
entry.ino = file->inode();
|
||||
|
||||
stat(file, &entry.attr);
|
||||
stat(file.get(), &entry.attr);
|
||||
fuse_reply_entry(req, &entry);
|
||||
return;
|
||||
}
|
||||
@ -378,7 +383,7 @@ static void pascal_getattr(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info
|
||||
|
||||
struct stat st;
|
||||
VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
|
||||
FileEntry *file;
|
||||
FileEntryPointer file;
|
||||
|
||||
if (ino == 1)
|
||||
{
|
||||
@ -392,7 +397,7 @@ static void pascal_getattr(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info
|
||||
ERROR(file == NULL, ENOENT)
|
||||
//printf("\t%s\n", file->name());
|
||||
|
||||
stat(file, &st);
|
||||
stat(file.get(), &st);
|
||||
fuse_reply_attr(req, &st, 0.0);
|
||||
}
|
||||
|
||||
@ -402,10 +407,11 @@ static void pascal_getattr(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info
|
||||
|
||||
static void pascal_open(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
|
||||
{
|
||||
unsigned index;
|
||||
DEBUGNAME()
|
||||
|
||||
VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
|
||||
FileEntry *file;
|
||||
FileEntryPointer file;
|
||||
|
||||
ERROR(ino == 1, EISDIR)
|
||||
|
||||
@ -415,7 +421,20 @@ static void pascal_open(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *f
|
||||
|
||||
ERROR((fi->flags & O_ACCMODE) != O_RDONLY, EACCES)
|
||||
|
||||
fi->fh = (uint64_t)file;
|
||||
// insert the FileEntryPointer into fd_table.
|
||||
if (fd_table_available.size())
|
||||
{
|
||||
index = fd_table_available.back();
|
||||
fd_table_available.pop_back();
|
||||
fd_table[index] = file;
|
||||
}
|
||||
else
|
||||
{
|
||||
index = fd_table.size();
|
||||
fd_table.push_back(file);
|
||||
}
|
||||
|
||||
fi->fh = index;
|
||||
|
||||
fuse_reply_open(req, fi);
|
||||
}
|
||||
@ -423,19 +442,25 @@ static void pascal_open(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *f
|
||||
|
||||
static void pascal_release(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi)
|
||||
{
|
||||
unsigned index = fi->fh;
|
||||
DEBUGNAME()
|
||||
|
||||
fd_table[index].reset();
|
||||
fd_table_available.push_back(index);
|
||||
|
||||
fuse_reply_err(req, 0);
|
||||
}
|
||||
|
||||
|
||||
static void pascal_read(fuse_req_t req, fuse_ino_t ino, size_t size, off_t off, struct fuse_file_info *fi)
|
||||
{
|
||||
unsigned index = fi->fh;
|
||||
|
||||
DEBUGNAME()
|
||||
|
||||
|
||||
//VolumeEntry *volume = (VolumeEntry *)fuse_req_userdata(req);
|
||||
FileEntry *file = (FileEntry *)fi->fh;
|
||||
FileEntryPointer file = fd_table[index];
|
||||
|
||||
|
||||
|
||||
|
||||
@ -215,7 +215,7 @@ int main(int argc, char **argv)
|
||||
bool rawDevice;
|
||||
|
||||
BlockDevicePointer device;
|
||||
std::auto_ptr<VolumeEntry> volume;
|
||||
VolumeEntryPointer volume;
|
||||
|
||||
// Check for block device. if so, verify.
|
||||
// if file exists, verify before overwrite.
|
||||
@ -298,9 +298,7 @@ int main(int argc, char **argv)
|
||||
}
|
||||
|
||||
|
||||
volume.reset(
|
||||
new VolumeEntry(volumeName.c_str(), device)
|
||||
);
|
||||
volume = VolumeEntry::Create(device, volumeName.c_str());
|
||||
|
||||
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user