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pagers_core/ops/
lockall.rs

1use crate::mincore::PageMap;
2
3use super::lock::{Lock, LockedFile};
4use super::{FileContext, Op, ResidencyEffect};
5use crate::mlock;
6
7/// [`Lock`] + `mlockall(MCL_CURRENT)` after all files.
8#[derive(Debug, Clone, Copy, PartialEq, Eq)]
9#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
10pub struct Lockall;
11
12impl Op for Lockall {
13    const LABEL: &str = "locked";
14    const EFFECT: ResidencyEffect = ResidencyEffect::Populate;
15    type Output = LockedFile;
16
17    fn execute<PM: PageMap + Sync>(&self, ctx: &FileContext<'_, PM>) -> crate::Result<LockedFile> {
18        Lock.execute(ctx)
19    }
20
21    fn finish(&self) -> crate::Result<()> {
22        mlock::mlockall_current()?;
23        Ok(())
24    }
25}