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package mount
import "github.com/hanwen/go-fuse/v2/fuse"
// https://github.com/libfuse/libfuse/blob/48ae2e72b39b6a31cb2194f6f11786b7ca06aac6/include/fuse.h#L778
/**
* Copy a range of data from one file to anotherNiels de Vos, 4 years ago: • libfuse: add copy_file_range() support
*
* Performs an optimized copy between two file descriptors without the
* additional cost of transferring data through the FUSE kernel module
* to user space (glibc) and then back into the FUSE filesystem again.
*
* In case this method is not implemented, applications are expected to
* fall back to a regular file copy. (Some glibc versions did this
* emulation automatically, but the emulation has been removed from all
* glibc release branches.)
*/
func (wfs *WFS) CopyFileRange(cancel <-chan struct{}, in *fuse.CopyFileRangeIn) (written uint32, code fuse.Status) {
return 0, fuse.ENOSYS
}
/**
* Allocates space for an open file
*
* This function ensures that required space is allocated for specified
* file. If this function returns success then any subsequent write
* request to specified range is guaranteed not to fail because of lack
* of space on the file system media.
*/
func (wfs *WFS) Fallocate(cancel <-chan struct{}, in *fuse.FallocateIn) (code fuse.Status) {
return fuse.ENOSYS
}
/**
* Find next data or hole after the specified offset
*/
func (wfs *WFS) Lseek(cancel <-chan struct{}, in *fuse.LseekIn, out *fuse.LseekOut) fuse.Status {
return fuse.ENOSYS
}
func (wfs *WFS) GetLk(cancel <-chan struct{}, in *fuse.LkIn, out *fuse.LkOut) (code fuse.Status) {
return fuse.ENOSYS
}
func (wfs *WFS) SetLk(cancel <-chan struct{}, in *fuse.LkIn) (code fuse.Status) {
return fuse.ENOSYS
}
func (wfs *WFS) SetLkw(cancel <-chan struct{}, in *fuse.LkIn) (code fuse.Status) {
return fuse.ENOSYS
}
/**
* Check file access permissions
*
* This will be called for the access() system call. If the
* 'default_permissions' mount option is given, this method is not
* called.
*
* This method is not called under Linux kernel versions 2.4.x
*/
func (wfs *WFS) Access(cancel <-chan struct{}, input *fuse.AccessIn) (code fuse.Status) {
return fuse.ENOSYS
}