add support for creating and writing to a file (only direct pointer s…

…upport, which means file sizes are limited to fs.block_size * 12)
tsatke · Jun 24, 2024 · fad9028 · fad9028
1 parent 2c08e0f
commit fad9028
Show file tree

Hide file tree

Showing 13 changed files with 482 additions and 73 deletions.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/ext2/Cargo.toml b/ext2/Cargo.toml
@@ -12,3 +12,6 @@ name = "ext2"
 [dependencies]
 bitflags = "2.3.1"
 mkfs-filesystem = { version = "0.1.0", path = "../filesystem" }
+
+[dev-dependencies]
+rand = "0.9.0-alpha.1"
diff --git a/ext2/src/address.rs b/ext2/src/address.rs
@@ -2,6 +2,7 @@ use core::num::NonZeroU32;
 use core::ops::Deref;
 
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd)]
+#[repr(transparent)]
 pub struct InodeAddress(NonZeroU32);
 
 impl Deref for InodeAddress {
@@ -18,6 +19,12 @@ impl From<NonZeroU32> for InodeAddress {
     }
 }
 
+impl From<InodeAddress> for u32 {
+    fn from(value: InodeAddress) -> u32 {
+        value.0.get()
+    }
+}
+
 impl InodeAddress {
     pub const fn new(n: u32) -> Option<Self> {
         let nzu32 = NonZeroU32::new(n);
@@ -29,6 +36,7 @@ impl InodeAddress {
 }
 
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd)]
+#[repr(transparent)]
 pub struct BlockAddress(NonZeroU32);
 
 impl Deref for BlockAddress {