The FUSE protocol allows each directory entry to include a off field in struct fuse_dirent. It's purpose is to uniquely identify a directory entry so that a future FUSE_READDIR operation may continue where a previous one left off. The FUSE file system is allowed to choose the format of those off values. In particular, sequentially increasing indexes are usually not adequate, because if a directory entry is deleted in between two FUSE_READDIR operations, using sequential off values could lead to skipping over a directory entry.
fuse3 currently manages the off value itself, in handle_readdir, and provides the file system with no means to override it. Instead, the off value should be specified by the file system as part of reply::DirectoryEntry.
The FUSE protocol allows each directory entry to include a
offfield instruct fuse_dirent. It's purpose is to uniquely identify a directory entry so that a futureFUSE_READDIRoperation may continue where a previous one left off. The FUSE file system is allowed to choose the format of thoseoffvalues. In particular, sequentially increasing indexes are usually not adequate, because if a directory entry is deleted in between twoFUSE_READDIRoperations, using sequentialoffvalues could lead to skipping over a directory entry. fuse3 currently manages theoffvalue itself, inhandle_readdir, and provides the file system with no means to override it. Instead, theoffvalue should be specified by the file system as part ofreply::DirectoryEntry.