2b72262b4f
I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
/*
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* Copyright (c) 2013, 2014, 2015 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* inode.h
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* Filesystem inode.
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*/
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#ifndef INODE_H
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#define INODE_H
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class Block;
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class Filesystem;
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class Inode
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{
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public:
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Inode(Filesystem* filesystem, uint32_t inode_id);
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~Inode();
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public:
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Inode* prev_inode;
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Inode* next_inode;
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Inode* prev_hashed;
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Inode* next_hashed;
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Inode* prev_dirty;
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Inode* next_dirty;
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Block* data_block;
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struct ext_inode* data;
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Filesystem* filesystem;
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size_t reference_count;
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size_t remote_reference_count;
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uint32_t inode_id;
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bool dirty;
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public:
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uint32_t Mode();
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uint32_t UserId();
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uint32_t GroupId();
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uint64_t Size();
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void SetMode(uint32_t mode);
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void SetUserId(uint32_t user);
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void SetGroupId(uint32_t group);
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void SetSize(uint64_t new_size);
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void Truncate(uint64_t new_size);
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bool FreeIndirect(uint64_t from, uint64_t offset, uint32_t block_id,
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int indirection, uint64_t entry_span);
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Block* GetBlock(uint64_t offset);
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Block* GetBlockFromTable(Block* table, uint32_t index);
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Inode* Open(const char* elem, int flags, mode_t mode);
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bool Link(const char* elem, Inode* dest, bool directories);
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bool Symlink(const char* elem, const char* dest);
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bool Unlink(const char* elem, bool directories, bool force=false);
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Inode* UnlinkKeep(const char* elem, bool directories, bool force=false);
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ssize_t ReadAt(uint8_t* buffer, size_t count, off_t offset);
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ssize_t WriteAt(const uint8_t* buffer, size_t count, off_t offset);
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bool UnembedInInode();
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bool Rename(Inode* olddir, const char* oldname, const char* newname);
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Inode* CreateDirectory(const char* path, mode_t mode);
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bool RemoveDirectory(const char* path);
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bool IsEmptyDirectory();
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void Refer();
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void Unref();
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void RemoteRefer();
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void RemoteUnref();
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void Sync();
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void BeginWrite();
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void FinishWrite();
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void Modified();
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void Use();
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void Unlink();
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void Prelink();
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void Delete();
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};
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#endif
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