move Rust sources to top level, C sources into c_src

[bcachefs-tools-debian] / bch_bindgen / src / rs.rs

diff --git a/bch_bindgen/src/rs.rs b/bch_bindgen/src/rs.rs
new file mode 100644 (file)
index 0000000..24594ae
--- /dev/null
+++ b/bch_bindgen/src/rs.rs
@@ -0,0 +1,29 @@
+use anyhow::anyhow;
+use crate::bcachefs;
+use crate::bcachefs::*;
+use crate::errcode::bch_errcode;
+
+pub fn read_super_opts(
+    path: &std::path::Path,
+    mut opts: bch_opts,
+) -> anyhow::Result<bch_sb_handle> {
+    use std::os::unix::ffi::OsStrExt;
+    let path = std::ffi::CString::new(path.as_os_str().as_bytes()).unwrap();
+
+    let mut sb = std::mem::MaybeUninit::zeroed();
+
+    let ret =
+        unsafe { crate::bcachefs::bch2_read_super(path.as_ptr(), &mut opts, sb.as_mut_ptr()) };
+
+    if ret != 0 {
+        let err: bch_errcode = unsafe { ::std::mem::transmute(ret) };
+        Err(anyhow!(err))
+    } else {
+        Ok(unsafe { sb.assume_init() })
+    }
+}
+
+pub fn read_super(path: &std::path::Path) -> anyhow::Result<bch_sb_handle> {
+    let opts = bcachefs::bch_opts::default();
+    read_super_opts(path, opts)
+}