mirror of
https://github.com/rclone/rclone.git
synced 2024-12-11 17:51:12 +01:00
31 lines
898 B
Markdown
31 lines
898 B
Markdown
|
# The mount sequence
|
||
|
|
||
|
FUSE mounting is a little bit tricky. There's a userspace helper tool
|
||
|
that performs the handshake with the kernel, and then steps out of the
|
||
|
way. This helper behaves differently on different platforms, forcing a
|
||
|
more complex API on us.
|
||
|
|
||
|
## Successful runs
|
||
|
|
||
|
On Linux, the mount is immediate and file system accesses wait until
|
||
|
the requests are served.
|
||
|
|
||
|
![Diagram of Linux FUSE mount sequence](mount-linux.seq.png)
|
||
|
|
||
|
On OS X, the mount becomes visible only after `InitRequest` (and maybe
|
||
|
more) have been served.
|
||
|
|
||
|
![Diagram of OSXFUSE mount sequence](mount-osx.seq.png)
|
||
|
|
||
|
|
||
|
## Errors
|
||
|
|
||
|
Let's see what happens if `InitRequest` gets an error response. On
|
||
|
Linux, the mountpoint is there but all operations will fail:
|
||
|
|
||
|
![Diagram of Linux error handling](mount-linux-error-init.seq.png)
|
||
|
|
||
|
On OS X, the mount never happened:
|
||
|
|
||
|
![Diagram of OS X error handling](mount-osx-error-init.seq.png)
|