vec: single file with header

crates/brk_core/src/enums/error.rs

@@ -20,6 +20,7 @@ pub enum Error {
 
     WrongEndian,
     DifferentVersion { found: Version, expected: Version },
+    UnexpectedData,
     MmapsVecIsTooSmall,
     IndexTooHigh,
     EmptyVec,
@@ -102,12 +103,13 @@ impl fmt::Display for Error {
             Error::BincodeDecodeError(error) => Debug::fmt(&error, f),
             Error::BincodeEncodeError(error) => Debug::fmt(&error, f),
             Error::ZeroCopyError => write!(f, "ZeroCopy error"),
+            Error::UnexpectedData => write!(f, "Unexpected data"),
 
             Error::WrongEndian => write!(f, "Wrong endian"),
             Error::DifferentVersion { found, expected } => {
                 write!(
                     f,
-                    "Different version; found: {found:?}, expected: {expected:?}"
+                    "Different version found: {found:?}, expected: {expected:?}"
                 )
             }
             Error::MmapsVecIsTooSmall => write!(f, "Mmaps vec is too small"),

crates/brk_core/src/structs/version.rs

@@ -12,7 +12,18 @@ use zerocopy_derive::{FromBytes, Immutable, IntoBytes, KnownLayout};
 use crate::{Error, Result};
 
 #[derive(
-    Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, FromBytes, IntoBytes, Immutable, KnownLayout,
+    Default,
+    Debug,
+    Clone,
+    Copy,
+    PartialEq,
+    Eq,
+    PartialOrd,
+    Ord,
+    FromBytes,
+    IntoBytes,
+    Immutable,
+    KnownLayout,
 )]
 pub struct Version(u64);
 

crates/brk_core/src/utils/rlimit.rs

@@ -4,14 +4,12 @@ use rlimit::{Resource, getrlimit};
 
 pub fn setrlimit() -> io::Result<()> {
     let no_file_limit = getrlimit(Resource::NOFILE)?;
+
     rlimit::setrlimit(
         Resource::NOFILE,
         no_file_limit.0.max(210_000),
         no_file_limit.1,
     )?;
 
-    // let no_stack = getrlimit(Resource::STACK)?;
-    // rlimit::setrlimit(Resource::STACK, no_stack.1, no_stack.1)?;
-
     Ok(())
 }