Module fuse_backend_rs::transport

FUSE/Virtiofs transport drivers to receive requests from/send reply to Fuse/Virtiofs clients.

Originally a FUSE server communicates with the FUSE driver through the device /dev/fuse, and the communication protocol is called as FUSE protocol. Later the FUSE protocol is extended to support Virtio-fs device. So there are two transport layers supported:

• fusedev: communicate with the FUSE driver through /dev/fuse
• virtiofs: communicate with the virtiofsd on host side by using virtio descriptors.

Structs

• FuseBuf
  A buffer reference wrapper for fuse requests.
• FuseChannel
  A fuse channel abstraction.
• FuseDevWriter
  Writer to send FUSE reply to the FUSE driver.
• FuseSession
  A fuse session manager to manage the connection with the in kernel fuse driver.
• Reader
  Reader to access FUSE requests from the transport layer data buffers.
• VirtioFsWriter
  Provide high-level interface over the sequence of memory regions defined by writable descriptors in the Virtio descriptor chain.

Enums

• Error
  Transport layer specific error codes.
• Writer
  Writer to send reply message to ’/dev/fuse` or virtiofs queue.

Traits

• FsCacheReqHandler
  Trait to support virtio-fs DAX Window operations.

Functions

• pagesize
  Safe wrapper for sysconf(_SC_PAGESIZE).

Type Aliases

• Result
  Specialized version of std::result::Result for transport layer operations.