pbs-tools: drop borrow module

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

pbs-datastore/Cargo.toml

@@ -26,6 +26,7 @@ pathpatterns = "0.1.2"
 pxar = "0.10.1"
 
 proxmox = "0.14.0"
+proxmox-borrow = "1"
 proxmox-io = "1"
 proxmox-lang = "1"
 proxmox-schema = { version = "1", features = [ "api-macro" ] }

pbs-datastore/src/checksum_reader.rs

@@ -2,7 +2,8 @@ use anyhow::{Error};
 use std::sync::Arc;
 use std::io::Read;
 
-use pbs_tools::borrow::Tied;
+use proxmox_borrow::Tied;
+
 use pbs_tools::crypt_config::CryptConfig;
 
 pub struct ChecksumReader<R> {

pbs-datastore/src/checksum_writer.rs

@@ -3,7 +3,8 @@ use std::io::Write;
 
 use anyhow::{Error};
 
-use pbs_tools::borrow::Tied;
+use proxmox_borrow::Tied;
+
 use pbs_tools::crypt_config::CryptConfig;
 
 pub struct ChecksumWriter<W> {

pbs-tools/Cargo.toml

@@ -33,6 +33,7 @@ walkdir = "2"
 zstd = { version = "0.6", features = [ "bindgen" ] }
 
 proxmox = { version = "0.14.0", default-features = false, features = [ "tokio" ] }
+proxmox-borrow = "1"
 proxmox-io = { version = "1", features = [ "tokio" ] }
 proxmox-lang = { version = "1" }
 proxmox-time = { version = "1" }

pbs-tools/src/borrow.rs

@@ -1,59 +0,0 @@
-/// This ties two values T and U together, such that T does not move and cannot be used as long as
-/// there's an U. This essentially replaces the borrow checker's job for dependent values which
-/// need to be stored together in a struct {}, and is similar to what the 'rental' crate produces.
-pub struct Tied<T, U: ?Sized>(Option<Box<T>>, Option<Box<U>>);
-
-impl<T, U: ?Sized> Drop for Tied<T, U> {
-    fn drop(&mut self) {
-        // let's be explicit about order here!
-        std::mem::drop(self.1.take());
-    }
-}
-
-impl<T, U: ?Sized> Tied<T, U> {
-    /// Takes an owner and a function producing the depending value. The owner will be inaccessible
-    /// until the tied value is resolved. The dependent value is only accessible by reference.
-    pub fn new<F>(owner: T, producer: F) -> Self
-    where
-        F: FnOnce(*mut T) -> Box<U>,
-    {
-        let mut owner = Box::new(owner);
-        let dep = producer(&mut *owner);
-        Tied(Some(owner), Some(dep))
-    }
-
-    pub fn into_boxed_inner(mut self) -> Box<T> {
-        self.1 = None;
-        self.0.take().unwrap()
-    }
-
-    pub fn into_inner(self) -> T {
-        *self.into_boxed_inner()
-    }
-}
-
-impl<T, U: ?Sized> AsRef<U> for Tied<T, U> {
-    fn as_ref(&self) -> &U {
-        self.1.as_ref().unwrap()
-    }
-}
-
-impl<T, U: ?Sized> AsMut<U> for Tied<T, U> {
-    fn as_mut(&mut self) -> &mut U {
-        self.1.as_mut().unwrap()
-    }
-}
-
-impl<T, U: ?Sized> std::ops::Deref for Tied<T, U> {
-    type Target = U;
-
-    fn deref(&self) -> &U {
-        self.as_ref()
-    }
-}
-
-impl<T, U: ?Sized> std::ops::DerefMut for Tied<T, U> {
-    fn deref_mut(&mut self) -> &mut U {
-        self.as_mut()
-    }
-}

pbs-tools/src/fs.rs

@@ -18,8 +18,7 @@ use nix::sys::stat::Mode;
 use regex::Regex;
 
 use proxmox::sys::error::SysError;
-
-use crate::borrow::Tied;
+use proxmox_borrow::Tied;
 
 pub type DirLockGuard = Dir;
 

pbs-tools/src/lib.rs

@@ -1,6 +1,5 @@
 pub mod acl;
 pub mod blocking;
-pub mod borrow;
 pub mod broadcast_future;
 pub mod cert;
 pub mod cli;