NextGraph
/
rust-rocksdb
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

some scaffolding, refactoring, clearing of todo's

Browse Source
master
Tyler Neely 10 years ago
parent b87ca6bce8
commit 14a68671e7
3 changed files with 86 additions and 39 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 84
      src/ffi.rs
  2. 1
      src/lib.rs
  3. 28
      src/rocksdb.rs

84
src/ffi.rs
Unescape View File

@ -33,6 +33,8 @@ pub struct RocksDBBlockBasedTableOptions(pub *const c_void);
pub struct RocksDBCache(pub *const c_void);
#[repr(C)]
pub struct RocksDBFilterPolicy(pub *const c_void);
#[repr(C)]
pub struct RocksDBSnapshot(pub *const c_void);
impl Copy for RocksDBOptions {}
impl Copy for RocksDBInstance {}
@ -45,6 +47,7 @@ impl Copy for RocksDBFilterPolicy {}
impl Copy for RocksDBCompactionStyle {}
impl Copy for RocksDBCompressionType {}
impl Copy for RocksDBUniversalCompactionStyle {}
impl Copy for RocksDBSnapshot {}
pub fn new_bloom_filter(bits: c_int) -> RocksDBFilterPolicy {
unsafe {
@ -168,50 +171,73 @@ extern {
pub fn rocksdb_filterpolicy_create_bloom(
bits_per_key: c_int) -> RocksDBFilterPolicy;
pub fn rocksdb_open(options: RocksDBOptions,
path: *const i8, err: *mut i8) -> RocksDBInstance;
path: *const i8,
err: *mut i8
) -> RocksDBInstance;
pub fn rocksdb_writeoptions_create() -> RocksDBWriteOptions;
pub fn rocksdb_put(db: RocksDBInstance, writeopts: RocksDBWriteOptions,
k: *const u8, kLen: size_t, v: *const u8,
vLen: size_t, err: *mut i8);
pub fn rocksdb_put(db: RocksDBInstance,
writeopts: RocksDBWriteOptions,
k: *const u8, kLen: size_t,
v: *const u8, vLen: size_t,
err: *mut i8);
pub fn rocksdb_readoptions_create() -> RocksDBReadOptions;
pub fn rocksdb_get(db: RocksDBInstance, readopts: RocksDBReadOptions,
pub fn rocksdb_get(db: RocksDBInstance,
readopts: RocksDBReadOptions,
k: *const u8, kLen: size_t,
valLen: *const size_t,
err: *mut i8
) -> *mut c_void;
pub fn rocksdb_delete(db: RocksDBInstance,
writeopts: RocksDBWriteOptions,
k: *const u8, kLen: size_t,
valLen: *const size_t, err: *mut i8) -> *mut c_void;
pub fn rocksdb_delete(db: RocksDBInstance, writeopts: RocksDBWriteOptions,
k: *const u8, kLen: size_t, err: *mut i8) -> *mut c_void;
err: *mut i8
) -> *mut c_void;
pub fn rocksdb_close(db: RocksDBInstance);
pub fn rocksdb_destroy_db(
options: RocksDBOptions, path: *const i8, err: *mut i8);
pub fn rocksdb_repair_db(
options: RocksDBOptions, path: *const i8, err: *mut i8);
pub fn rocksdb_destroy_db(options: RocksDBOptions,
path: *const i8, err: *mut i8);
pub fn rocksdb_repair_db(options: RocksDBOptions,
path: *const i8, err: *mut i8);
// Merge
pub fn rocksdb_merge(db: RocksDBInstance, writeopts: RocksDBWriteOptions,
pub fn rocksdb_merge(db: RocksDBInstance,
writeopts: RocksDBWriteOptions,
k: *const u8, kLen: size_t,
v: *const u8, vLen: size_t, err: *mut i8);
v: *const u8, vLen: size_t,
err: *mut i8);
pub fn rocksdb_mergeoperator_create(
state: *mut c_void,
destroy: extern fn(*mut c_void) -> (),
full_merge: extern fn (
arg: *mut c_void, key: *const c_char, key_len: size_t,
existing_value: *const c_char, existing_value_len: size_t,
operands_list: *const *const c_char, operands_list_len: *const size_t,
num_operands: c_int,
success: *mut u8, new_value_length: *mut size_t
full_merge: extern fn (arg: *mut c_void,
key: *const c_char, key_len: size_t,
existing_value: *const c_char,
existing_value_len: size_t,
operands_list: *const *const c_char,
operands_list_len: *const size_t,
num_operands: c_int, success: *mut u8,
new_value_length: *mut size_t
) -> *const c_char,
partial_merge: extern fn(
arg: *mut c_void, key: *const c_char, key_len: size_t,
operands_list: *const *const c_char, operands_list_len: *const size_t,
num_operands: c_int,
success: *mut u8, new_value_length: *mut size_t
partial_merge: extern fn(arg: *mut c_void,
key: *const c_char, key_len: size_t,
operands_list: *const *const c_char,
operands_list_len: *const size_t,
num_operands: c_int, success: *mut u8,
new_value_length: *mut size_t
) -> *const c_char,
delete_value: Option<extern "C" fn(*mut c_void, value: *const c_char,
value_len: *mut size_t) -> ()>,
delete_value: Option<extern "C" fn(*mut c_void,
value: *const c_char,
value_len: *mut size_t
) -> ()>,
name_fn: extern fn(*mut c_void) -> *const c_char,
) -> RocksDBMergeOperator;
pub fn rocksdb_mergeoperator_destroy(mo: RocksDBMergeOperator);
pub fn rocksdb_options_set_merge_operator(
options: RocksDBOptions,
pub fn rocksdb_options_set_merge_operator(options: RocksDBOptions,
mo: RocksDBMergeOperator);
// Snapshot
pub fn rocksdb_create_snapshot(db: RocksDBInstance) -> RocksDBSnapshot;
pub fn rocksdb_readoptions_set_snapshot(read_opts: RocksDBReadOptions,
snapshot: RocksDBSnapshot);
pub fn rocksdb_release_snapshot(db: RocksDBInstance,
snapshot: RocksDBSnapshot);
}
#[allow(dead_code)]

1
src/lib.rs
Unescape View File

@ -24,6 +24,7 @@ pub use ffi::{
RocksDBUniversalCompactionStyle,
RocksDBCompactionStyle,
RocksDBCompressionType,
RocksDBSnapshot,
};
pub use rocksdb::{
RocksDB,

28
src/rocksdb.rs
Unescape View File

@ -23,8 +23,12 @@ use std::ffi::CString;
use std::str::from_utf8;
use std::slice;
use std::str::from_c_str;
use std::io::fs::PathExtensions;
use std::io;
use std::io::fs;
use rocksdb_ffi;
use rocksdb_ffi::RocksDBSnapshot;
use rocksdb_options::RocksDBOptions;
pub struct RocksDB {
@ -43,8 +47,13 @@ impl RocksDB {
let cpath = CString::from_slice(path.as_bytes());
let cpath_ptr = cpath.as_ptr();
//TODO test path here, as if rocksdb fails it will just crash the
// process currently
let ospath = Path::new(path);
if !ospath.exists() {
match fs::mkdir_recursive(&ospath, io::USER_DIR) {
Err(e) => return Err(e.desc),
Ok(_) => (),
}
}
let err = 0 as *mut i8;
let db = rocksdb_ffi::rocksdb_open(opts.inner, cpath_ptr, err);
@ -65,8 +74,13 @@ impl RocksDB {
let cpath = CString::from_slice(path.as_bytes());
let cpath_ptr = cpath.as_ptr();
//TODO test path here, as if rocksdb fails it will just crash the
// process currently
let ospath = Path::new(path);
if !ospath.exists() {
match fs::mkdir_recursive(&ospath, io::USER_DIR) {
Err(e) => return Err(e.desc),
Ok(_) => (),
}
}
let err = 0 as *mut i8;
let result = rocksdb_ffi::rocksdb_destroy_db(
@ -79,6 +93,12 @@ impl RocksDB {
}
}
pub fn create_snapshot(self) -> RocksDBSnapshot {
unsafe {
rocksdb_ffi::rocksdb_create_snapshot(self.inner)
}
}
pub fn put(&self, key: &[u8], value: &[u8]) -> Result<(), &str> {
unsafe {
let writeopts = rocksdb_ffi::rocksdb_writeoptions_create();

Write Preview
Loading…
Cancel
Save