diff options
Diffstat (limited to 'bch_bindgen/src/bkey.rs')
-rw-r--r-- | bch_bindgen/src/bkey.rs | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/bch_bindgen/src/bkey.rs b/bch_bindgen/src/bkey.rs new file mode 100644 index 00000000..d4830839 --- /dev/null +++ b/bch_bindgen/src/bkey.rs @@ -0,0 +1,125 @@ +#![allow(non_camel_case_types)] + +use crate::c; +use crate::fs::Fs; +use crate::btree::BtreeIter; +use crate::printbuf_to_formatter; +use std::fmt; +use std::marker::PhantomData; +use std::mem::transmute; + +pub struct BkeySC<'a> { + pub k: &'a c::bkey, + pub v: &'a c::bch_val, + pub(crate) iter: PhantomData<&'a mut BtreeIter<'a>> +} + +pub enum BkeyValC<'a> { + deleted, + whiteout, + error, + cookie(&'a c::bch_cookie), + hash_whiteout(&'a c::bch_hash_whiteout), + btree_ptr(&'a c::bch_btree_ptr), + extent(&'a c::bch_extent), + reservation(&'a c::bch_reservation), + inode(&'a c::bch_inode), + inode_generation(&'a c::bch_inode_generation), + dirent(&'a c::bch_dirent), + xattr(&'a c::bch_xattr), + alloc(&'a c::bch_alloc), + quota(&'a c::bch_quota), + stripe(&'a c::bch_stripe), + reflink_p(&'a c::bch_reflink_p), + reflink_v(&'a c::bch_reflink_v), + inline_data(&'a c::bch_inline_data), + btree_ptr_v2(&'a c::bch_btree_ptr_v2), + indirect_inline_data(&'a c::bch_indirect_inline_data), + alloc_v2(&'a c::bch_alloc_v2), + subvolume(&'a c::bch_subvolume), + snapshot(&'a c::bch_snapshot), + inode_v2(&'a c::bch_inode_v2), + alloc_v3(&'a c::bch_alloc_v3), + set, + lru(&'a c::bch_lru), + alloc_v4(&'a c::bch_alloc_v4), + backpointer(&'a c::bch_backpointer), + inode_v3(&'a c::bch_inode_v3), + bucket_gens(&'a c::bch_bucket_gens), + snapshot_tree(&'a c::bch_snapshot_tree), + logged_op_truncate(&'a c::bch_logged_op_truncate), + logged_op_finsert(&'a c::bch_logged_op_finsert), +} + +impl<'a, 'b> BkeySC<'a> { + unsafe fn to_raw(&self) -> c::bkey_s_c { + c::bkey_s_c { k: self.k, v: self.v } + } + + pub fn to_text(&'a self, fs: &'b Fs) -> BkeySCToText<'a, 'b> { + BkeySCToText { k: self, fs } + } + + pub fn v(&'a self) -> BkeyValC { + let ty: c::bch_bkey_type = unsafe { transmute(self.k.type_ as u32) }; + + use c::bch_bkey_type::*; + use BkeyValC::*; + match ty { + KEY_TYPE_deleted => deleted, + KEY_TYPE_whiteout => whiteout, + KEY_TYPE_error => error, + KEY_TYPE_cookie => cookie(unsafe { transmute(self.v) }), + KEY_TYPE_hash_whiteout => hash_whiteout(unsafe { transmute(self.v) }), + KEY_TYPE_btree_ptr => btree_ptr(unsafe { transmute(self.v) }), + KEY_TYPE_extent => extent(unsafe { transmute(self.v) }), + KEY_TYPE_reservation => reservation(unsafe { transmute(self.v) }), + KEY_TYPE_inode => inode(unsafe { transmute(self.v) }), + KEY_TYPE_inode_generation => inode_generation(unsafe { transmute(self.v) }), + KEY_TYPE_dirent => dirent(unsafe { transmute(self.v) }), + KEY_TYPE_xattr => xattr(unsafe { transmute(self.v) }), + KEY_TYPE_alloc => alloc(unsafe { transmute(self.v) }), + KEY_TYPE_quota => quota(unsafe { transmute(self.v) }), + KEY_TYPE_stripe => stripe(unsafe { transmute(self.v) }), + KEY_TYPE_reflink_p => reflink_p(unsafe { transmute(self.v) }), + KEY_TYPE_reflink_v => reflink_v(unsafe { transmute(self.v) }), + KEY_TYPE_inline_data => inline_data(unsafe { transmute(self.v) }), + KEY_TYPE_btree_ptr_v2 => btree_ptr_v2(unsafe { transmute(self.v) }), + KEY_TYPE_indirect_inline_data => indirect_inline_data(unsafe { transmute(self.v) }), + KEY_TYPE_alloc_v2 => alloc_v2(unsafe { transmute(self.v) }), + KEY_TYPE_subvolume => subvolume(unsafe { transmute(self.v) }), + KEY_TYPE_snapshot => snapshot(unsafe { transmute(self.v) }), + KEY_TYPE_inode_v2 => inode_v2(unsafe { transmute(self.v) }), + KEY_TYPE_alloc_v3 => inode_v3(unsafe { transmute(self.v) }), + KEY_TYPE_set => set, + KEY_TYPE_lru => lru(unsafe { transmute(self.v) }), + KEY_TYPE_alloc_v4 => alloc_v4(unsafe { transmute(self.v) }), + KEY_TYPE_backpointer => backpointer(unsafe { transmute(self.v) }), + KEY_TYPE_inode_v3 => inode_v3(unsafe { transmute(self.v) }), + KEY_TYPE_bucket_gens => bucket_gens(unsafe { transmute(self.v) }), + KEY_TYPE_snapshot_tree => snapshot_tree(unsafe { transmute(self.v) }), + KEY_TYPE_logged_op_truncate => logged_op_truncate(unsafe { transmute(self.v) }), + KEY_TYPE_logged_op_finsert => logged_op_finsert(unsafe { transmute(self.v) }), + KEY_TYPE_MAX => unreachable!(), + } + } +} + +impl<'a> From<&'a c::bkey_i> for BkeySC<'a> { + fn from(k: &'a c::bkey_i) -> Self { + BkeySC { k: &k.k, v: &k.v, iter: PhantomData } + } +} + +pub struct BkeySCToText<'a, 'b> { + k: &'a BkeySC<'a>, + fs: &'b Fs, +} + +impl<'a, 'b> fmt::Display for BkeySCToText<'a, 'b> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + unsafe { + printbuf_to_formatter(f, |buf| c::bch2_bkey_val_to_text(buf, self.fs.raw, self.k.to_raw())) + } + } +} |