# LibTmux.ServerMirror

- **Module:** LibTmux
- **Package:** LibTmux
- **Language:** C#
- **Kind:** class
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/cf34b255c896d19a97e7d7fabea58609c916012d/src/LibTmux/Snapshots/ServerMirror.cs#L44
- **Page:** https://libtmux.org/en/csharp/latest/reference/libtmux-servermirror/

A live copy of one tmux server's sessions, windows, panes and clients, rebuilt whenever tmux announces a change.

A control client attached to an anchor session hears what tmux announces. Any
announcement, or the loss of one, starts a fresh capture, never a patch of the
last one, since an announcement says that something changed, not everything
that did. Announcements that arrive during a capture collapse into one more,
and a capture that finds nothing different publishes nothing; activity
times, cursor positions and history sizes, which change with every
keystroke, do not count as different. Each published view carries an epoch
one above the last, counted by this mirror.

tmux announces only some changes to a client: not a pane's running command or
working directory, and not a layout change in a session the client is not
attached to. Give a refresh interval to see those within that long.

When the control client ends, the mirror finds the anchor session again by its
ID and attaches through it; if the session has gone, the mirror ends with
<see cref="TmuxObjectNotFoundException" />, and if the server has, with the
failure that said so. The client asks tmux for notifications only, not pane
output, and does not affect window sizes.

## Members

### Other members

- `Current` (property): Gets the latest published view.
- `DisposeAsync` (method): Stops listening and detaches the control client; the last view stays readable.
- `Failure` (property): Gets why the mirror ended, when something other than disposal ended it.
- `IsEnded` (property): Gets whether the mirror has stopped publishing, because it was disposed or its anchor has gone.
- `OpenAsync` (method): Mirrors the server an anchor session belongs to.
- `WaitForNewerAsync` (method): Waits for a view newer than an epoch.
- `WaitUntilAsync` (method): Waits until a view satisfies a condition, testing the current view first.
- `WatchAsync` (method): Streams the current view and then each newer one, skipping any published while the reader was busy.