Trait forest_filecoin::shim::fvm_latest::syscalls::Syscall
source · pub trait Syscall<K, Args, Ret>: Send + Sync + 'static {
// Required method
fn link(
self,
linker: &mut Linker<K>,
module: &'static str,
name: &'static str,
) -> Result<(), Error>;
}
Expand description
A Syscall
is a function in the form fn(Context<'_, K>, I...) -> R
where:
K
is the kernel type. Constrain this to the precise kernel operations you need, or even a specific kernel implementation.I...
, the syscall parameters, are 0-8 types, each one ofu32
,u64
,i32
, ori64
.R
is a type implementingIntoControlFlow
. This is usually one of:kernel::Result<T>
orControlFlow<T>
whereT
, the return value type, isSyscallSafe
.Abort
for syscalls that only abort (revert) the currently running actor.
You generally shouldn’t implement this trait yourself.