liblmdb_sys/
lib.rs

1#![allow(dead_code, non_camel_case_types)]
2
3extern crate libc;
4
5pub use self::os::{mdb_mode_t, mdb_filehandle_t};
6use libc::{c_int, c_uint, c_void, c_char, size_t};
7
8#[cfg(any(target_os = "macos", target_os = "ios", target_os = "linux",
9          target_os = "freebsd", target_os = "dragonfly",
10          target_os = "android"))]
11mod os {
12    use libc;
13
14
15    pub type mdb_mode_t = libc::mode_t;
16
17    pub type mdb_filehandle_t = libc::c_int;
18}
19
20#[cfg(target_os = "windows")]
21mod os {
22    use libc;
23
24    pub type mdb_mode_t = libc::c_int;
25
26    pub type mdb_filehandle_t = libc::c_int;
27}
28
29pub type MDB_dbi = c_uint;
30
31pub type MDB_rel_func = extern fn(*const MDB_val, *const c_void, *const c_void, *const c_void);
32pub type MDB_msg_func = extern fn(*const c_char, *const c_void) -> c_int;
33pub type MDB_cmp_func = extern fn(*const MDB_val, *const MDB_val) -> c_int;
34
35#[derive(Copy, Clone)]
36#[repr(C)]
37pub struct MDB_val {
38    pub mv_size: size_t,
39    pub mv_data: *const c_void,
40}
41
42#[allow(missing_copy_implementations)]
43pub enum MDB_env {}
44
45#[allow(missing_copy_implementations)]
46pub enum MDB_txn {}
47
48#[allow(missing_copy_implementations)]
49pub enum MDB_cursor {}
50
51#[repr(C)]
52#[derive(Copy, Clone)]
53pub struct MDB_stat {
54    pub ms_psize: c_uint,
55    pub ms_depth: c_uint,
56    pub ms_branch_pages: size_t,
57    pub ms_leaf_pages: size_t,
58    pub ms_overflow_pages: size_t,
59    pub ms_entries: size_t
60}
61
62#[repr(C)]
63#[allow(missing_copy_implementations)]
64pub struct MDB_envinfo {
65    pub me_mapaddr: *const c_void,
66    pub me_mapsize: size_t,
67    pub me_last_pgno: size_t,
68    pub me_last_txnid: size_t,
69    pub me_maxreaders: c_uint,
70    pub me_numreaders: c_uint
71}
72
73#[repr(C)]
74#[derive(Copy, Clone, Eq, PartialEq)]
75pub enum MDB_cursor_op {
76    MDB_FIRST,
77    MDB_FIRST_DUP,
78    MDB_GET_BOTH,
79    MDB_GET_BOTH_RANGE,
80    MDB_GET_CURRENT,
81    MDB_GET_MULTIPLE,
82    MDB_LAST,
83    MDB_LAST_DUP,
84    MDB_NEXT,
85    MDB_NEXT_DUP,
86    MDB_NEXT_MULTIPLE,
87    MDB_NEXT_NODUP,
88    MDB_PREV,
89    MDB_PREV_DUP,
90    MDB_PREV_NODUP,
91    MDB_SET,
92    MDB_SET_KEY,
93    MDB_SET_RANGE
94}
95
96// Return codes
97pub const MDB_SUCCESS: c_int = 0;
98pub const MDB_KEYEXIST: c_int = -30799;
99pub const MDB_NOTFOUND: c_int = -30798;
100pub const MDB_PAGE_NOTFOUND: c_int = -30797;
101pub const MDB_CORRUPTED: c_int = -30796;
102pub const MDB_PANIC: c_int = -30795;
103pub const MDB_VERSION_MISMATCH: c_int = -30794;
104pub const MDB_INVALID: c_int = -30793;
105pub const MDB_MAP_FULL: c_int = -30792;
106pub const MDB_DBS_FULL: c_int = -30791;
107pub const MDB_READERS_FULL: c_int = -30790;
108pub const MDB_TLS_FULL: c_int = -30789;
109pub const MDB_TXN_FULL: c_int = -30788;
110pub const MDB_CURSOR_FULL: c_int = -30787;
111pub const MDB_PAGE_FULL: c_int = -30786;
112pub const MDB_MAP_RESIZED: c_int = -30785;
113pub const MDB_INCOMPATIBLE: c_int = -30784;
114pub const MDB_BAD_RSLOT: c_int = -30783;
115pub const MDB_BAD_TXN: c_int = -30782;
116pub const MDB_BAD_VALSIZE: c_int = -30781;
117
118// Write flags
119pub const MDB_NOOVERWRITE: c_uint = 0x10;
120pub const MDB_NODUPDATA: c_uint = 0x20;
121pub const MDB_CURRENT: c_uint = 0x40;
122pub const MDB_RESERVE: c_uint = 0x10000;
123pub const MDB_APPEND: c_uint = 0x20000;
124pub const MDB_APPENDDUP: c_uint = 0x40000;
125pub const MDB_MULTIPLE: c_uint = 0x80000;
126
127// Database flags
128pub const MDB_REVERSEKEY: c_uint = 0x02;
129pub const MDB_DUPSORT: c_uint = 0x04;
130pub const MDB_INTEGERKEY: c_uint = 0x08;
131pub const MDB_DUPFIXED: c_uint = 0x10;
132pub const MDB_INTEGERDUP: c_uint = 0x20;
133pub const MDB_REVERSEDUP: c_uint =  0x40;
134pub const MDB_CREATE: c_uint = 0x40000;
135
136// Environment flags
137pub const MDB_FIXEDMAP: c_uint =  0x01;
138pub const MDB_NOSUBDIR: c_uint = 0x4000;
139pub const MDB_NOSYNC: c_uint = 0x10000;
140pub const MDB_RDONLY: c_uint = 0x20000;
141pub const MDB_NOMETASYNC: c_uint = 0x40000;
142pub const MDB_WRITEMAP: c_uint = 0x80000;
143pub const MDB_MAPASYNC: c_uint = 0x100000;
144pub const MDB_NOTLS: c_uint = 0x200000;
145pub const MDB_NOLOCK: c_uint =  0x400000;
146pub const MDB_NORDAHEAD: c_uint = 0x800000;
147pub const MDB_NOMEMINIT: c_uint =  0x1000000;
148
149// Embedding should work better for now
150extern "C" {
151    pub fn mdb_version(major: *mut c_int, minor: *mut c_int, patch: *mut c_int) -> *const c_char;
152    pub fn mdb_strerror(err: c_int) -> *const c_char;
153    pub fn mdb_env_create(env: *mut *mut MDB_env) -> c_int;
154    pub fn mdb_env_open(env: *mut MDB_env, path: *const c_char, flags: c_uint, mode: mdb_mode_t) -> c_int;
155    pub fn mdb_env_copy(env: *mut MDB_env, path: *const c_char) -> c_int;
156    pub fn mdb_env_copyfd(env: *mut MDB_env, fd: mdb_filehandle_t) -> c_int;
157    pub fn mdb_env_stat(env: *mut MDB_env, stat: *mut MDB_stat) -> c_int;
158    pub fn mdb_env_info(env: *mut MDB_env, info: *mut MDB_envinfo) -> c_int;
159    pub fn mdb_env_sync(env: *mut MDB_env, force: c_int) -> c_int;
160    pub fn mdb_env_close(env: *mut MDB_env);
161    pub fn mdb_env_set_flags(env: *mut MDB_env, flags: c_uint, onoff: c_int) -> c_int;
162    pub fn mdb_env_get_flags(env: *mut MDB_env, flags: *mut c_uint) -> c_int;
163    pub fn mdb_env_get_path(env: *mut MDB_env, path: *mut *mut c_char) -> c_int;
164    pub fn mdb_env_get_fd(env: *mut MDB_env, fd: *mut mdb_filehandle_t) -> c_int;
165    pub fn mdb_env_set_mapsize(env: *mut MDB_env, size: size_t) -> c_int;
166    pub fn mdb_env_set_maxreaders(env: *mut MDB_env, readers: c_uint) -> c_int;
167    pub fn mdb_env_get_maxreaders(env: *mut MDB_env, readers: *mut c_uint) -> c_int;
168    pub fn mdb_env_set_maxdbs(env: *mut MDB_env, dbs: MDB_dbi) -> c_int;
169    pub fn mdb_env_get_maxkeysize(env: *mut MDB_env) -> c_int;
170    pub fn mdb_txn_begin(env: *mut MDB_env, parent: *mut MDB_txn, flags: c_uint, txn: *mut *mut MDB_txn) -> c_int;
171    pub fn mdb_txn_env(txn: *mut MDB_txn) -> *mut MDB_env;
172    pub fn mdb_txn_commit(txn: *mut MDB_txn) -> c_int;
173    pub fn mdb_txn_abort(txn: *mut MDB_txn);
174    pub fn mdb_txn_reset(txn: *mut MDB_txn);
175    pub fn mdb_txn_renew(txn: *mut MDB_txn) -> c_int;
176    pub fn mdb_dbi_open(txn: *mut MDB_txn, name: *const c_char, flags: c_uint, dbi: *mut MDB_dbi) -> c_int;
177    pub fn mdb_stat(txn: *mut MDB_txn, dbi: MDB_dbi, stat: *mut MDB_stat) -> c_int;
178    pub fn mdb_dbi_flags(txn: *mut MDB_txn, dbi: MDB_dbi, flags: *mut c_uint) -> c_int;
179    pub fn mdb_dbi_close(txn: *mut MDB_env, dbi: MDB_dbi);
180    pub fn mdb_drop(txn: *mut MDB_txn, dbi: MDB_dbi, del: c_int) -> c_int;
181    pub fn mdb_set_compare(txn: *mut MDB_txn, dbi: MDB_dbi, cmp: MDB_cmp_func) -> c_int;
182    pub fn mdb_set_dupsort(txn: *mut MDB_txn, dbi: MDB_dbi, cmp: MDB_cmp_func) -> c_int;
183    pub fn mdb_set_relfunc(txn: *mut MDB_txn, dbi: MDB_dbi, rel: MDB_rel_func) -> c_int;
184    pub fn mdb_set_relctx(txn: *mut MDB_txn, dbi: MDB_dbi, ctx: *const c_void) -> c_int;
185    pub fn mdb_get(txn: *mut MDB_txn, dbi: MDB_dbi, key: *mut MDB_val, data: *mut MDB_val) -> c_int;
186    pub fn mdb_put(txn: *mut MDB_txn, dbi: MDB_dbi, key: *mut MDB_val, data: *mut MDB_val, flags: c_uint) -> c_int;
187    pub fn mdb_del(txn: *mut MDB_txn, dbi: MDB_dbi, key: *mut MDB_val, data: *mut MDB_val) -> c_int;
188    pub fn mdb_cursor_open(txn: *mut MDB_txn, dbi: MDB_dbi, cursor: *mut *mut MDB_cursor) -> c_int;
189    pub fn mdb_cursor_close(cursor: *mut MDB_cursor) -> c_int;
190    pub fn mdb_cursor_renew(txn: *mut MDB_txn, cursor: *mut MDB_cursor) -> c_int;
191    pub fn mdb_cursor_txn(cursor: *mut MDB_cursor) -> *mut MDB_txn;
192    pub fn mdb_cursor_dbi(cursor: *mut MDB_cursor) -> *mut MDB_dbi;
193    pub fn mdb_cursor_get(cursor: *mut MDB_cursor, key: *mut MDB_val, data: *mut MDB_val, op: MDB_cursor_op) -> c_int;
194    pub fn mdb_cursor_put(cursor: *mut MDB_cursor, key: *mut MDB_val, data: *mut MDB_val, flags: c_uint) -> c_int;
195    pub fn mdb_cursor_del(cursor: *mut MDB_cursor, flags: c_uint) -> c_int;
196    pub fn mdb_cursor_count(cursor: *mut MDB_cursor, countp: *mut size_t) -> c_int;
197    pub fn mdb_cmp(txn: *mut MDB_txn, dbi: MDB_dbi, a: *mut MDB_val, b: *mut MDB_val) -> c_int;
198    pub fn mdb_dcmp(txn: *mut MDB_txn, dbi: MDB_dbi, a: *mut MDB_val, b: *mut MDB_val) -> c_int;
199    pub fn mdb_reader_list(env: *mut MDB_env, func: MDB_msg_func, ctx: *const c_void) -> c_int;
200    pub fn mdb_reader_check(env: *mut MDB_env, dead: *mut c_int) -> c_int;
201}
202
203impl std::fmt::Debug for MDB_val {
204    fn fmt(&self, fmt: &mut std::fmt::Formatter) -> std::fmt::Result {
205        unsafe {
206            let buf: &[u8] = std::slice::from_raw_parts(std::mem::transmute(self.mv_data),
207                                                        self.mv_size as usize);
208            write!(fmt, "{:?}@{:?}", buf, self.mv_data)
209        }
210    }
211}
liblmdb_sys/lib.rs

liblmdb_sys/
lib.rs
