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use crate::api::resource::Resource;
use crate::typed_op::TypedOp;
pub struct Truncate {
res: Resource,
size: u64,
}
assert_op_max_size!(Truncate);
impl Truncate {
pub(crate) fn new(res: Resource, size: u64) -> Self {
Self { res, size }
}
pub fn to_op(self) -> crate::op::Op {
crate::op::Op::Truncate { fd: self.res, size: self.size }
}
}
impl TypedOp for Truncate {
type Result = std::io::Result<()>;
fn into_op(&mut self) -> crate::op::Op {
crate::op::Op::Truncate { fd: self.res.clone(), size: self.size }
}
fn extract_result(self, res: isize) -> Self::Result {
if res < 0 {
Err(std::io::Error::from_raw_os_error((-res) as i32))
} else {
Ok(())
}
}
// #[cfg(unix)]
// fn meta(&self) -> crate::operation::OpMeta {
// crate::operation::OpMeta::CAP_FD
// }
// #[cfg(unix)]
// fn cap(&self) -> i32 {
// self.res.as_raw_fd()
// }
// #[cfg(linux)]
// fn create_entry(&self) -> lio_uring::submission::Entry {
// lio_uring::operation::Ftruncate::new(self.res.as_raw_fd(), self.size)
// .build()
// }
// fn run_blocking(&self) -> isize {
// syscall!(raw ftruncate(self.res.as_raw_fd(), self.size as i64))
// }
}