110 lines
2.1 KiB
C++
110 lines
2.1 KiB
C++
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#include "Superblock.h"
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#include "assert.h"
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#include "Dentry.h"
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#include "Inode.h"
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#include "File.h"
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#include "FileSystemType.h"
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Superblock::Superblock(FileSystemType* fs_type, size_t s_dev) :
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s_magic_(0), s_type_(fs_type), s_dev_(s_dev), s_flags_(0), s_root_(0), s_mountpoint_(0)
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{
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debug(SUPERBLOCK, "%s Superblock created\n", s_type_->getFSName());
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}
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Superblock::~Superblock()
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{
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debug(SUPERBLOCK, "%s Superblock destroyed\n", s_type_->getFSName());
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}
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void Superblock::deleteInode(Inode* inode)
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{
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assert(inode != 0);
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dirty_inodes_.remove(inode);
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used_inodes_.remove(inode);
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all_inodes_.remove(inode);
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delete inode;
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}
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Dentry* Superblock::getRoot()
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{
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return s_root_;
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}
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Dentry* Superblock::getMountPoint()
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{
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return s_mountpoint_;
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}
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void Superblock::setMountPoint(Dentry* mountpoint)
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{
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s_mountpoint_ = mountpoint;
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}
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FileSystemType* Superblock::getFSType()
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{
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return (FileSystemType*) s_type_;
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}
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int Superblock::fileOpened(File* file)
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{
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Inode* inode = file->getInode();
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assert(inode->getSuperblock() == this);
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if(ustl::find(s_files_.begin(), s_files_.end(), file) != s_files_.end())
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{
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return -1;
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}
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s_files_.push_back(file);
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used_inodes_.push_back(inode);
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return 0;
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}
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int Superblock::fileReleased(File* file)
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{
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Inode* inode = file->getInode();
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assert(inode->getSuperblock() == this);
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s_files_.remove(file);
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if (inode->getNumOpenedFile() == 0)
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{
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used_inodes_.remove(inode);
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}
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return 0;
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}
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void Superblock::releaseAllOpenFiles()
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{
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debug(SUPERBLOCK, "Releasing all open files\n");
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while(!s_files_.empty())
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{
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File* file = s_files_.front();
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file->getInode()->release(file);
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}
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assert(s_files_.empty());
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}
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void Superblock::deleteAllInodes()
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{
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for (Inode* inode : all_inodes_)
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{
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while(!inode->getDentrys().empty())
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{
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delete inode->getDentrys().front();
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}
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debug(SUPERBLOCK, "~Superblock write inode to disc\n");
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writeInode(inode);
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debug(SUPERBLOCK, "~Superblock delete inode %p\n", inode);
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delete inode;
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}
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all_inodes_.clear();
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}
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