pub trait KernelBackend: Send + Sync {
Show 21 methods
// Required methods
fn read<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
range: Option<ReadRange>,
) -> Pin<Box<dyn Future<Output = BackendResult<Vec<u8>>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn write<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
path: &'life1 Path,
content: &'life2 [u8],
mode: WriteMode,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait;
fn append<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
path: &'life1 Path,
content: &'life2 [u8],
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait;
fn patch<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
path: &'life1 Path,
ops: &'life2 [PatchOp],
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait;
fn list<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<Vec<DirEntry>>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn stat<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<DirEntry>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn mkdir<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn set_mtime<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
mtime: SystemTime,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn remove<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
recursive: bool,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn rename<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
from: &'life1 Path,
to: &'life2 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait;
fn exists<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn lstat<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<DirEntry>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn read_link<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<PathBuf>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn symlink<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
target: &'life1 Path,
link: &'life2 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait;
fn call_tool<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
name: &'life1 str,
args: ToolArgs,
ctx: &'life2 mut dyn ToolCtx,
) -> Pin<Box<dyn Future<Output = BackendResult<ToolResult>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait;
fn list_tools<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = BackendResult<Vec<ToolInfo>>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait;
fn get_tool<'life0, 'life1, 'async_trait>(
&'life0 self,
name: &'life1 str,
) -> Pin<Box<dyn Future<Output = BackendResult<Option<ToolInfo>>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn read_only(&self) -> bool;
fn backend_type(&self) -> &str;
fn mounts(&self) -> Vec<MountInfo>;
fn resolve_real_path(&self, path: &Path) -> Option<PathBuf>;
}Expand description
Abstract backend interface for file operations and tool dispatch.
Implementations select where a path resolves and how tools are dispatched:
LocalBackend— VfsRouter-backed local filesystem (the default).KaijutsuBackend— CRDT-backed blocks when embedded in kaijutsu.
Required Methods§
Sourcefn read<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
range: Option<ReadRange>,
) -> Pin<Box<dyn Future<Output = BackendResult<Vec<u8>>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn read<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
range: Option<ReadRange>,
) -> Pin<Box<dyn Future<Output = BackendResult<Vec<u8>>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Read file contents, optionally with a range specification.
Sourcefn write<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
path: &'life1 Path,
content: &'life2 [u8],
mode: WriteMode,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
fn write<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
path: &'life1 Path,
content: &'life2 [u8],
mode: WriteMode,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
Write content to a file with the specified mode.
Sourcefn append<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
path: &'life1 Path,
content: &'life2 [u8],
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
fn append<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
path: &'life1 Path,
content: &'life2 [u8],
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
Append content to a file.
Sourcefn patch<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
path: &'life1 Path,
ops: &'life2 [PatchOp],
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
fn patch<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
path: &'life1 Path,
ops: &'life2 [PatchOp],
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
Apply a sequence of patch operations to a file.
Sourcefn list<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<Vec<DirEntry>>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn list<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<Vec<DirEntry>>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
List a directory’s entries.
Sourcefn stat<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<DirEntry>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn stat<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<DirEntry>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Stat a path (following symlinks).
Sourcefn mkdir<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn mkdir<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Create a directory.
Sourcefn set_mtime<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
mtime: SystemTime,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn set_mtime<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
mtime: SystemTime,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Set the modification time of an existing path.
Read-only or purely-virtual mounts reject rather than silently
succeeding — touch on an existing file must route through here, never
escape to the host via resolve_real_path.
Sourcefn remove<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
recursive: bool,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn remove<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
recursive: bool,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Remove a file or directory.
Sourcefn rename<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
from: &'life1 Path,
to: &'life2 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
fn rename<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
from: &'life1 Path,
to: &'life2 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
Rename/move a path.
Sourcefn exists<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn exists<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Whether a path exists.
Sourcefn lstat<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<DirEntry>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn lstat<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<DirEntry>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Stat a path without following symlinks.
Sourcefn read_link<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<PathBuf>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn read_link<'life0, 'life1, 'async_trait>(
&'life0 self,
path: &'life1 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<PathBuf>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Read a symlink’s target.
Sourcefn symlink<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
target: &'life1 Path,
link: &'life2 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
fn symlink<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
target: &'life1 Path,
link: &'life2 Path,
) -> Pin<Box<dyn Future<Output = BackendResult<()>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
Create a symlink.
Sourcefn call_tool<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
name: &'life1 str,
args: ToolArgs,
ctx: &'life2 mut dyn ToolCtx,
) -> Pin<Box<dyn Future<Output = BackendResult<ToolResult>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
fn call_tool<'life0, 'life1, 'life2, 'async_trait>(
&'life0 self,
name: &'life1 str,
args: ToolArgs,
ctx: &'life2 mut dyn ToolCtx,
) -> Pin<Box<dyn Future<Output = BackendResult<ToolResult>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
'life2: 'async_trait,
Call a tool by name with the given arguments and execution context.
For local backends, this executes the tool directly via ToolRegistry. For remote backends (e.g. kaijutsu), this may serialize the call and forward it to the parent process.
Sourcefn list_tools<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = BackendResult<Vec<ToolInfo>>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
fn list_tools<'life0, 'async_trait>(
&'life0 self,
) -> Pin<Box<dyn Future<Output = BackendResult<Vec<ToolInfo>>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
List available external tools.
Sourcefn get_tool<'life0, 'life1, 'async_trait>(
&'life0 self,
name: &'life1 str,
) -> Pin<Box<dyn Future<Output = BackendResult<Option<ToolInfo>>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
fn get_tool<'life0, 'life1, 'async_trait>(
&'life0 self,
name: &'life1 str,
) -> Pin<Box<dyn Future<Output = BackendResult<Option<ToolInfo>>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Get information about a specific tool.
Sourcefn backend_type(&self) -> &str
fn backend_type(&self) -> &str
Returns the backend type identifier (e.g. “local”, “kaijutsu”).
Sourcefn resolve_real_path(&self, path: &Path) -> Option<PathBuf>
fn resolve_real_path(&self, path: &Path) -> Option<PathBuf>
Resolve a VFS path to a real filesystem path.
Returns Some(path) if the VFS path maps to a real filesystem (like
LocalFs), or None if the path is virtual (like MemoryFs). Tools like
git that hand paths to external C libraries need the real path.
Dyn Compatibility§
This trait is dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".