mirror of
https://github.com/koverstreet/bcachefs-tools.git
synced 2025-02-23 00:00:02 +03:00
e0e06d95f8
This is a _very_ preliminary rewrite of the cmd_list tool in rust, which is intended to be a testing ground for a safe interface in Rust to the core btree interface. This adds rust wrappers for: bch_fs: provides bch2_fs_open(), bch2_fs_stop btree_trans: provides bch2_trans_init(), bch2_trans_exit() btree_iter: provides peek, peek_and_restart, advance bch_errcode: implements Display (wraps bch2_err_str()) bpos: implements Ord (wraps bpos_cmp()) bkey_s_c: implements Display (wraps bch2_bkey_val_to_text()) and other assorted types. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
30 lines
823 B
Rust
30 lines
823 B
Rust
use anyhow::anyhow;
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use crate::bcachefs;
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use crate::bcachefs::*;
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use crate::errcode::bch_errcode;
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pub fn read_super_opts(
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path: &std::path::Path,
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mut opts: bch_opts,
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) -> anyhow::Result<bch_sb_handle> {
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use std::os::unix::ffi::OsStrExt;
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let path = std::ffi::CString::new(path.as_os_str().as_bytes()).unwrap();
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let mut sb = std::mem::MaybeUninit::zeroed();
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let ret =
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unsafe { crate::bcachefs::bch2_read_super(path.as_ptr(), &mut opts, sb.as_mut_ptr()) };
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if ret != 0 {
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let err: bch_errcode = unsafe { ::std::mem::transmute(ret) };
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Err(anyhow!(err))
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} else {
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Ok(unsafe { sb.assume_init() })
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}
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}
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pub fn read_super(path: &std::path::Path) -> anyhow::Result<bch_sb_handle> {
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let opts = bcachefs::bch_opts::default();
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read_super_opts(path, opts)
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}
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