56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
#ifndef _TOS_VFS_INODE_H_
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#define _TOS_VFS_INODE_H_
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// why your inode's name so long?
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#define VFS_INODE_NAME_MAX 31
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typedef union vfs_inode_operations_un {
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vfs_chrdev_ops_t *cd_ops;
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vfs_blkdev_ops_t *bd_ops;
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vfs_fs_ops_t *fs_ops;
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} vfs_inode_ops_t;
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#define VFS_INODE_TYPE_CHAR_DEVICE 0x00000000
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#define VFS_INODE_TYPE_BLOCK_DEVICE 0x00000001
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#define VFS_INODE_TYPE_FILESYSTEM 0x00000002
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#define VFS_INODE_TYPE_UNUSED 0x00000003
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#define VFS_INODE_TYPE_SET(inode, _type) \
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((inode)->type = _type)
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#define VFS_INODE_IS_TYPE(inode, _type) \
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((inode)->type == _type)
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#define VFS_INODE_IS_CHAR_DEVICE(inode) VFS_INODE_IS_TYPE(inode, VFS_INODE_TYPE_CHAR_DEVICE)
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#define VFS_INODE_IS_BLOCK_DEVICE(inode) VFS_INODE_IS_TYPE(inode, VFS_INODE_TYPE_BLOCK_DEVICE)
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#define VFS_INODE_IS_FILESYSTEM(inode) VFS_INODE_IS_TYPE(inode, VFS_INODE_TYPE_FILESYSTEM)
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#define VFS_INODE_IS_DEVICE(inode) (VFS_INODE_IS_BLOCK_DEVICE(inode) || VFS_INODE_IS_CHAR_DEVICE(inode))
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#define VFS_INODE_REFS_MAX (0x3F)
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typedef struct vfs_inode_st {
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uint8_t type : 2; /*< now we only support three kind of inode */
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uint8_t refs : 6; /*< max 0x3F */
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vfs_inode_ops_t ops;
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void *private;
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k_list_t list;
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char name[1];
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} vfs_inode_t;
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#define VFS_INODE_SIZE(name_len) (sizeof(vfs_inode_t) + name_len)
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__KNL__ int vfs_inode_is_busy(vfs_inode_t *inode);
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__KNL__ void vfs_inode_refinc(vfs_inode_t *inode);
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__KNL__ vfs_inode_t *vfs_inode_find(const char *path, const char **relative_path);
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__KNL__ vfs_inode_t *vfs_inode_alloc(const char *name);
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__KNL__ void vfs_inode_free(vfs_inode_t *inode);
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__KNL__ void vfs_inode_release(vfs_inode_t *inode);
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#endif /* _TOS_VFS_INODE_H_ */
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