ops.txt

Operations

Chunk tree ops

CTOP_LOAD: Loads items from the chunk tree into the chunkTree vector
CTOP_DUMP_TREE: Dumps the entire chunk tree to stdout

Root tree ops

RTOP_LOAD: Loads items from the root tree into the rootTree vector
RTOP_DUMP_TREE: Dumps the entire root tree to stdout
RTOP_DEFAULT_SUBVOL: Finds the default subvolume and sets it as the subvolume to mount

RTOP_GET_SUBVOL_ID: Returns the object ID for a given subvolume name
Inputs:
[0] const char *			subvolume name
Outputs:
[0] BtrfsObjID *			ptr to subvol's object ID

RTOP_SUBVOL_EXISTS: Returns a boolean indicating whether the given subvolume ID exists
Inputs:
[0] const BtrfsObjID *		subvolume ID
Outputs:
[0] bool *					whether it exists

RTOP_GET_ADDR: Returns the address of the root node of a given tree
Inputs:
[0] const BtrfsObjID *		tree ID
Outputs:
[0] LogiAddr *				logical address

RTOP_DUMP_SUBVOLS: Finds each subvolume and runs an FSOP_DUMP_TREE on each

FS tree ops

FSOP_NAME_TO_ID: Finds the object ID for a named file or dir
Inputs:
[0] const BtrfsObjID *		parent's object ID
[1] const unsigned int *	hash of the child file/dir's name
[2] const char *			child file/dir's name
Outputs:
[0] BtrfsObjID *			child's object ID
[1] bool *					whether child is a subvolume

FSOP_DUMP_TREE: Dumps the entire FS tree to stdout

FSOP_GET_FILE_PKG: Returns a FilePkg struct containing information about a file from its object ID
Inputs:
[0] const BtrfsObjID *		object ID
Outputs:
[0] FilePkg *				FilePkg struct to fill

FSOP_DIR_LIST: Performs a directory listing of the dir represented by the object ID given in one step
Inputs:
[0] const FilePkg *			FilePkg struct associated with the directory
[1] const bool *			whether this directory is the root (the root of the _mounted_ subvolume)
Outputs:
[0] DirList *				DirList struct to fill

FSOP_GET_INODE: Gets an inode with the specified object ID
Inputs:
[0] const BtrfsObjID *		file's object ID
Outputs:
[0] BtrfsInodeItem *		inode