Type Alias BeforeSpawnHook 

pub type BeforeSpawnHook = Arc<dyn Fn(&mut Command) -> Result<(), Error> + Send + Sync>;

Hook invoked on std::process::Command immediately before each spawn attempt.

Lets callers set Unix-specific options (pre_exec, umask, capabilities) or otherwise tweak the spawn without waiting for procpilot to grow a builder method for every knob. Returning an Err aborts the spawn and surfaces as RunError::Spawn.

Aliased Type

pub struct BeforeSpawnHook { /* private fields */ }