mirror of https://github.com/ledisdb/ledisdb.git
add HyperLevelDB support
This commit is contained in:
holys
parent
55e7433541
commit
e501539649
11
dev.sh
11
dev.sh
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@ -13,6 +13,7 @@ fi
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SNAPPY_DIR=/usr/local/snappy
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LEVELDB_DIR=/usr/local/leveldb
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ROCKSDB_DIR=/usr/local/rocksdb
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HYPERLEVELDB_DIR=/usr/local/hyperleveldb
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function add_path()
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{
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@ -63,6 +64,16 @@ if [ -f $ROCKSDB_DIR/include/rocksdb/c.h ]; then
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GO_BUILD_TAGS="$GO_BUILD_TAGS rocksdb"
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fi
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#check hyperleveldb
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if [ -f $HYPERLEVELDB_DIR/include/hyperleveldb/c.h ]; then
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CGO_CFLAGS="$CGO_CFLAGS -I$HYPERLEVELDB_DIR/include"
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CGO_CXXFLAGS="$CGO_CXXFLAGS -I$HYPERLEVELDB_DIR/include"
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CGO_LDFLAGS="$CGO_LDFLAGS -L$HYPERLEVELDB_DIR/lib -lhyperleveldb"
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LD_LIBRARY_PATH=$(add_path $LD_LIBRARY_PATH $HYPERLEVELDB_DIR/lib)
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DYLD_LIBRARY_PATH=$(add_path $DYLD_LIBRARY_PATH $HYPERLEVELDB_DIR/lib)
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GO_BUILD_TAGS="$GO_BUILD_TAGS hyperleveldb"
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fi
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export CGO_CFLAGS
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export CGO_CXXFLAGS
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export CGO_LDFLAGS
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@ -0,0 +1,9 @@
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package store
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import (
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"github.com/siddontang/ledisdb/store/hyperleveldb"
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)
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func init() {
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Register(hyperleveldb.Store{})
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}
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@ -0,0 +1,61 @@
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// +build hyperleveldb
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package hyperleveldb
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// #cgo LDFLAGS: -lhyperleveldb
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// #include "hyperleveldb/c.h"
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import "C"
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import (
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"unsafe"
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)
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type WriteBatch struct {
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db *DB
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wbatch *C.leveldb_writebatch_t
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}
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func (w *WriteBatch) Close() error {
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C.leveldb_writebatch_destroy(w.wbatch)
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w.wbatch = nil
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return nil
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}
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func (w *WriteBatch) Put(key, value []byte) {
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var k, v *C.char
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if len(key) != 0 {
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k = (*C.char)(unsafe.Pointer(&key[0]))
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}
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if len(value) != 0 {
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v = (*C.char)(unsafe.Pointer(&value[0]))
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}
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lenk := len(key)
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lenv := len(value)
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C.leveldb_writebatch_put(w.wbatch, k, C.size_t(lenk), v, C.size_t(lenv))
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}
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func (w *WriteBatch) Delete(key []byte) {
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C.leveldb_writebatch_delete(w.wbatch,
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(*C.char)(unsafe.Pointer(&key[0])), C.size_t(len(key)))
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}
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func (w *WriteBatch) Commit() error {
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return w.commit(w.db.writeOpts)
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}
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func (w *WriteBatch) Rollback() error {
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C.leveldb_writebatch_clear(w.wbatch)
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return nil
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}
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func (w *WriteBatch) commit(wb *WriteOptions) error {
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var errStr *C.char
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C.leveldb_write(w.db.db, wb.Opt, w.wbatch, &errStr)
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if errStr != nil {
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return saveError(errStr)
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}
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return nil
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}
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@ -0,0 +1,20 @@
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// +build hyperleveldb
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package hyperleveldb
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// #cgo LDFLAGS: -lhyperleveldb
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// #include <stdint.h>
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// #include "hyperleveldb/c.h"
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import "C"
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type Cache struct {
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Cache *C.leveldb_cache_t
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}
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func NewLRUCache(capacity int) *Cache {
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return &Cache{C.leveldb_cache_create_lru(C.size_t(capacity))}
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}
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func (c *Cache) Close() {
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C.leveldb_cache_destroy(c.Cache)
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}
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@ -0,0 +1,259 @@
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// +build hyperleveldb
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// Package hyperleveldb is a wrapper for c++ hyperleveldb
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package hyperleveldb
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/*
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#cgo LDFLAGS: -lhyperleveldb
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#include <hyperleveldb/c.h>
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#include "hyperleveldb_ext.h"
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*/
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import "C"
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import (
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"github.com/siddontang/ledisdb/config"
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"github.com/siddontang/ledisdb/store/driver"
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"os"
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"runtime"
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"unsafe"
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)
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const defaultFilterBits int = 10
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type Store struct {
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}
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func (s Store) String() string {
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return "hyperleveldb"
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}
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func (s Store) Open(path string, cfg *config.Config) (driver.IDB, error) {
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if err := os.MkdirAll(path, os.ModePerm); err != nil {
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return nil, err
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}
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db := new(DB)
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db.path = path
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db.cfg = &cfg.LevelDB
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if err := db.open(); err != nil {
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return nil, err
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}
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return db, nil
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}
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func (s Store) Repair(path string, cfg *config.Config) error {
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db := new(DB)
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db.cfg = &cfg.LevelDB
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db.path = path
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err := db.open()
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defer db.Close()
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//open ok, do not need repair
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if err == nil {
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return nil
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}
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var errStr *C.char
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ldbname := C.CString(path)
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defer C.leveldb_free(unsafe.Pointer(ldbname))
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C.leveldb_repair_db(db.opts.Opt, ldbname, &errStr)
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if errStr != nil {
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return saveError(errStr)
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}
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return nil
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}
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type DB struct {
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path string
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cfg *config.LevelDBConfig
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db *C.leveldb_t
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opts *Options
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//for default read and write options
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readOpts *ReadOptions
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writeOpts *WriteOptions
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iteratorOpts *ReadOptions
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cache *Cache
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filter *FilterPolicy
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}
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func (db *DB) open() error {
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db.initOptions(db.cfg)
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var errStr *C.char
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ldbname := C.CString(db.path)
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defer C.leveldb_free(unsafe.Pointer(ldbname))
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db.db = C.leveldb_open(db.opts.Opt, ldbname, &errStr)
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if errStr != nil {
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db.db = nil
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return saveError(errStr)
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}
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return nil
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}
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func (db *DB) initOptions(cfg *config.LevelDBConfig) {
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opts := NewOptions()
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opts.SetCreateIfMissing(true)
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cfg.Adjust()
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db.cache = NewLRUCache(cfg.CacheSize)
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opts.SetCache(db.cache)
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//we must use bloomfilter
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db.filter = NewBloomFilter(defaultFilterBits)
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opts.SetFilterPolicy(db.filter)
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if !cfg.Compression {
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opts.SetCompression(NoCompression)
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} else {
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opts.SetCompression(SnappyCompression)
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}
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opts.SetBlockSize(cfg.BlockSize)
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opts.SetWriteBufferSize(cfg.WriteBufferSize)
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opts.SetMaxOpenFiles(cfg.MaxOpenFiles)
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db.opts = opts
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db.readOpts = NewReadOptions()
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db.writeOpts = NewWriteOptions()
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db.iteratorOpts = NewReadOptions()
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db.iteratorOpts.SetFillCache(false)
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}
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func (db *DB) Close() error {
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if db.db != nil {
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C.leveldb_close(db.db)
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db.db = nil
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}
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db.opts.Close()
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if db.cache != nil {
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db.cache.Close()
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}
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if db.filter != nil {
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db.filter.Close()
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}
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db.readOpts.Close()
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db.writeOpts.Close()
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db.iteratorOpts.Close()
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return nil
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}
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func (db *DB) Put(key, value []byte) error {
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return db.put(db.writeOpts, key, value)
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}
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func (db *DB) Get(key []byte) ([]byte, error) {
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return db.get(db.readOpts, key)
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}
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func (db *DB) Delete(key []byte) error {
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return db.delete(db.writeOpts, key)
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}
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func (db *DB) NewWriteBatch() driver.IWriteBatch {
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wb := &WriteBatch{
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db: db,
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wbatch: C.leveldb_writebatch_create(),
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}
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runtime.SetFinalizer(wb, func(w *WriteBatch) {
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w.Close()
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})
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return wb
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}
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func (db *DB) NewIterator() driver.IIterator {
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it := new(Iterator)
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it.it = C.leveldb_create_iterator(db.db, db.iteratorOpts.Opt)
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return it
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}
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func (db *DB) put(wo *WriteOptions, key, value []byte) error {
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var errStr *C.char
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var k, v *C.char
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if len(key) != 0 {
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k = (*C.char)(unsafe.Pointer(&key[0]))
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}
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if len(value) != 0 {
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v = (*C.char)(unsafe.Pointer(&value[0]))
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}
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lenk := len(key)
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lenv := len(value)
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C.leveldb_put(
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db.db, wo.Opt, k, C.size_t(lenk), v, C.size_t(lenv), &errStr)
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if errStr != nil {
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return saveError(errStr)
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}
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return nil
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}
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func (db *DB) get(ro *ReadOptions, key []byte) ([]byte, error) {
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var errStr *C.char
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var vallen C.size_t
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var k *C.char
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if len(key) != 0 {
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k = (*C.char)(unsafe.Pointer(&key[0]))
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}
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var value *C.char
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c := C.hyperleveldb_get_ext(
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db.db, ro.Opt, k, C.size_t(len(key)), &value, &vallen, &errStr)
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if errStr != nil {
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return nil, saveError(errStr)
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}
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if value == nil {
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return nil, nil
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}
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defer C.hyperleveldb_get_free_ext(unsafe.Pointer(c))
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return C.GoBytes(unsafe.Pointer(value), C.int(vallen)), nil
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}
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func (db *DB) delete(wo *WriteOptions, key []byte) error {
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var errStr *C.char
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var k *C.char
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if len(key) != 0 {
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k = (*C.char)(unsafe.Pointer(&key[0]))
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}
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C.leveldb_delete(
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db.db, wo.Opt, k, C.size_t(len(key)), &errStr)
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if errStr != nil {
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return saveError(errStr)
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}
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return nil
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}
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func (db *DB) Begin() (driver.Tx, error) {
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return nil, driver.ErrTxSupport
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}
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@ -0,0 +1,21 @@
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// +build hyperleveldb
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package hyperleveldb
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// #cgo LDFLAGS: -lhyperleveldb
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// #include <stdlib.h>
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// #include "hyperleveldb/c.h"
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import "C"
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type FilterPolicy struct {
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Policy *C.leveldb_filterpolicy_t
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}
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func NewBloomFilter(bitsPerKey int) *FilterPolicy {
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policy := C.leveldb_filterpolicy_create_bloom(C.int(bitsPerKey))
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return &FilterPolicy{policy}
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}
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func (fp *FilterPolicy) Close() {
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C.leveldb_filterpolicy_destroy(fp.Policy)
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}
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@ -0,0 +1,88 @@
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// +build hyperleveldb
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#include "hyperleveldb_ext.h"
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#include <stdlib.h>
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#include <string>
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#include "hyperleveldb/db.h"
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using namespace leveldb;
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extern "C" {
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static bool SaveError(char** errptr, const Status& s) {
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assert(errptr != NULL);
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if (s.ok()) {
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return false;
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} else if (*errptr == NULL) {
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*errptr = strdup(s.ToString().c_str());
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} else {
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free(*errptr);
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*errptr = strdup(s.ToString().c_str());
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}
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return true;
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}
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void* hyperleveldb_get_ext(
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leveldb_t* db,
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const leveldb_readoptions_t* options,
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const char* key, size_t keylen,
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char** valptr,
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size_t* vallen,
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char** errptr) {
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std::string *tmp = new(std::string);
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//very tricky, maybe changed with c++ leveldb upgrade
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Status s = (*(DB**)db)->Get(*(ReadOptions*)options, Slice(key, keylen), tmp);
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if (s.ok()) {
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*valptr = (char*)tmp->data();
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*vallen = tmp->size();
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} else {
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delete(tmp);
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tmp = NULL;
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*valptr = NULL;
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*vallen = 0;
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if (!s.IsNotFound()) {
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SaveError(errptr, s);
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}
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}
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return tmp;
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}
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void hyperleveldb_get_free_ext(void* context) {
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std::string* s = (std::string*)context;
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delete(s);
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}
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unsigned char hyperleveldb_iter_seek_to_first_ext(leveldb_iterator_t* iter) {
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leveldb_iter_seek_to_first(iter);
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return leveldb_iter_valid(iter);
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}
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unsigned char hyperleveldb_iter_seek_to_last_ext(leveldb_iterator_t* iter) {
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leveldb_iter_seek_to_last(iter);
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return leveldb_iter_valid(iter);
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}
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unsigned char hyperleveldb_iter_seek_ext(leveldb_iterator_t* iter, const char* k, size_t klen) {
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leveldb_iter_seek(iter, k, klen);
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return leveldb_iter_valid(iter);
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}
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unsigned char hyperleveldb_iter_next_ext(leveldb_iterator_t* iter) {
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leveldb_iter_next(iter);
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return leveldb_iter_valid(iter);
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}
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unsigned char hyperleveldb_iter_prev_ext(leveldb_iterator_t* iter) {
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leveldb_iter_prev(iter);
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return leveldb_iter_valid(iter);
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}
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}
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@ -0,0 +1,40 @@
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// +build hyperleveldb
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#ifndef HYPERLEVELDB_EXT_H
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#define HYPERLEVELDB_EXT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "hyperleveldb/c.h"
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/* Returns NULL if not found. Otherwise stores the value in **valptr.
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Stores the length of the value in *vallen.
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Returns a context must be later to free*/
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extern void* hyperleveldb_get_ext(
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leveldb_t* db,
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const leveldb_readoptions_t* options,
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const char* key, size_t keylen,
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char** valptr,
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size_t* vallen,
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char** errptr);
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// Free context returns by hyperleveldb_get_ext
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extern void hyperleveldb_get_free_ext(void* context);
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// Below iterator functions like leveldb iterator but returns valid status for iterator
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extern unsigned char hyperleveldb_iter_seek_to_first_ext(leveldb_iterator_t*);
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extern unsigned char hyperleveldb_iter_seek_to_last_ext(leveldb_iterator_t*);
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extern unsigned char hyperleveldb_iter_seek_ext(leveldb_iterator_t*, const char* k, size_t klen);
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extern unsigned char hyperleveldb_iter_next_ext(leveldb_iterator_t*);
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extern unsigned char hyperleveldb_iter_prev_ext(leveldb_iterator_t*);
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#ifdef __cplusplus
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}
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#endif
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#endif
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@ -0,0 +1,70 @@
|
|||
// +build hyperleveldb
|
||||
|
||||
package hyperleveldb
|
||||
|
||||
// #cgo LDFLAGS: -lhyperleveldb
|
||||
// #include <stdlib.h>
|
||||
// #include "hyperleveldb/c.h"
|
||||
// #include "hyperleveldb_ext.h"
|
||||
import "C"
|
||||
|
||||
import (
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
type Iterator struct {
|
||||
it *C.leveldb_iterator_t
|
||||
isValid C.uchar
|
||||
}
|
||||
|
||||
func (it *Iterator) Key() []byte {
|
||||
var klen C.size_t
|
||||
kdata := C.leveldb_iter_key(it.it, &klen)
|
||||
if kdata == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
return slice(unsafe.Pointer(kdata), int(C.int(klen)))
|
||||
}
|
||||
|
||||
func (it *Iterator) Value() []byte {
|
||||
var vlen C.size_t
|
||||
vdata := C.leveldb_iter_value(it.it, &vlen)
|
||||
if vdata == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
return slice(unsafe.Pointer(vdata), int(C.int(vlen)))
|
||||
}
|
||||
|
||||
func (it *Iterator) Close() error {
|
||||
if it.it != nil {
|
||||
C.leveldb_iter_destroy(it.it)
|
||||
it.it = nil
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (it *Iterator) Valid() bool {
|
||||
return ucharToBool(it.isValid)
|
||||
}
|
||||
|
||||
func (it *Iterator) Next() {
|
||||
it.isValid = C.hyperleveldb_iter_next_ext(it.it)
|
||||
}
|
||||
|
||||
func (it *Iterator) Prev() {
|
||||
it.isValid = C.hyperleveldb_iter_prev_ext(it.it)
|
||||
}
|
||||
|
||||
func (it *Iterator) First() {
|
||||
it.isValid = C.hyperleveldb_iter_seek_to_first_ext(it.it)
|
||||
}
|
||||
|
||||
func (it *Iterator) Last() {
|
||||
it.isValid = C.hyperleveldb_iter_seek_to_last_ext(it.it)
|
||||
}
|
||||
|
||||
func (it *Iterator) Seek(key []byte) {
|
||||
it.isValid = C.hyperleveldb_iter_seek_ext(it.it, (*C.char)(unsafe.Pointer(&key[0])), C.size_t(len(key)))
|
||||
}
|
||||
|
|
@ -0,0 +1,114 @@
|
|||
// +build hyperleveldb
|
||||
|
||||
package hyperleveldb
|
||||
|
||||
// #cgo LDFLAGS: -lhyperleveldb
|
||||
// #include "hyperleveldb/c.h"
|
||||
import "C"
|
||||
|
||||
type CompressionOpt int
|
||||
|
||||
const (
|
||||
NoCompression = CompressionOpt(0)
|
||||
SnappyCompression = CompressionOpt(1)
|
||||
)
|
||||
|
||||
type Options struct {
|
||||
Opt *C.leveldb_options_t
|
||||
}
|
||||
|
||||
type ReadOptions struct {
|
||||
Opt *C.leveldb_readoptions_t
|
||||
}
|
||||
|
||||
type WriteOptions struct {
|
||||
Opt *C.leveldb_writeoptions_t
|
||||
}
|
||||
|
||||
func NewOptions() *Options {
|
||||
opt := C.leveldb_options_create()
|
||||
return &Options{opt}
|
||||
}
|
||||
|
||||
func NewReadOptions() *ReadOptions {
|
||||
opt := C.leveldb_readoptions_create()
|
||||
return &ReadOptions{opt}
|
||||
}
|
||||
|
||||
func NewWriteOptions() *WriteOptions {
|
||||
opt := C.leveldb_writeoptions_create()
|
||||
return &WriteOptions{opt}
|
||||
}
|
||||
|
||||
func (o *Options) Close() {
|
||||
C.leveldb_options_destroy(o.Opt)
|
||||
}
|
||||
|
||||
func (o *Options) SetComparator(cmp *C.leveldb_comparator_t) {
|
||||
C.leveldb_options_set_comparator(o.Opt, cmp)
|
||||
}
|
||||
|
||||
func (o *Options) SetErrorIfExists(error_if_exists bool) {
|
||||
eie := boolToUchar(error_if_exists)
|
||||
C.leveldb_options_set_error_if_exists(o.Opt, eie)
|
||||
}
|
||||
|
||||
func (o *Options) SetCache(cache *Cache) {
|
||||
C.leveldb_options_set_cache(o.Opt, cache.Cache)
|
||||
}
|
||||
|
||||
func (o *Options) SetWriteBufferSize(s int) {
|
||||
C.leveldb_options_set_write_buffer_size(o.Opt, C.size_t(s))
|
||||
}
|
||||
|
||||
func (o *Options) SetParanoidChecks(pc bool) {
|
||||
C.leveldb_options_set_paranoid_checks(o.Opt, boolToUchar(pc))
|
||||
}
|
||||
|
||||
func (o *Options) SetMaxOpenFiles(n int) {
|
||||
C.leveldb_options_set_max_open_files(o.Opt, C.int(n))
|
||||
}
|
||||
|
||||
func (o *Options) SetBlockSize(s int) {
|
||||
C.leveldb_options_set_block_size(o.Opt, C.size_t(s))
|
||||
}
|
||||
|
||||
func (o *Options) SetBlockRestartInterval(n int) {
|
||||
C.leveldb_options_set_block_restart_interval(o.Opt, C.int(n))
|
||||
}
|
||||
|
||||
func (o *Options) SetCompression(t CompressionOpt) {
|
||||
C.leveldb_options_set_compression(o.Opt, C.int(t))
|
||||
}
|
||||
|
||||
func (o *Options) SetCreateIfMissing(b bool) {
|
||||
C.leveldb_options_set_create_if_missing(o.Opt, boolToUchar(b))
|
||||
}
|
||||
|
||||
func (o *Options) SetFilterPolicy(fp *FilterPolicy) {
|
||||
var policy *C.leveldb_filterpolicy_t
|
||||
if fp != nil {
|
||||
policy = fp.Policy
|
||||
}
|
||||
C.leveldb_options_set_filter_policy(o.Opt, policy)
|
||||
}
|
||||
|
||||
func (ro *ReadOptions) Close() {
|
||||
C.leveldb_readoptions_destroy(ro.Opt)
|
||||
}
|
||||
|
||||
func (ro *ReadOptions) SetVerifyChecksums(b bool) {
|
||||
C.leveldb_readoptions_set_verify_checksums(ro.Opt, boolToUchar(b))
|
||||
}
|
||||
|
||||
func (ro *ReadOptions) SetFillCache(b bool) {
|
||||
C.leveldb_readoptions_set_fill_cache(ro.Opt, boolToUchar(b))
|
||||
}
|
||||
|
||||
func (wo *WriteOptions) Close() {
|
||||
C.leveldb_writeoptions_destroy(wo.Opt)
|
||||
}
|
||||
|
||||
func (wo *WriteOptions) SetSync(b bool) {
|
||||
C.leveldb_writeoptions_set_sync(wo.Opt, boolToUchar(b))
|
||||
}
|
||||
|
|
@ -0,0 +1,44 @@
|
|||
// +build hyperleveldb
|
||||
|
||||
package hyperleveldb
|
||||
|
||||
// #include "hyperleveldb/c.h"
|
||||
import "C"
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func boolToUchar(b bool) C.uchar {
|
||||
uc := C.uchar(0)
|
||||
if b {
|
||||
uc = C.uchar(1)
|
||||
}
|
||||
return uc
|
||||
}
|
||||
|
||||
func ucharToBool(uc C.uchar) bool {
|
||||
if uc == C.uchar(0) {
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func saveError(errStr *C.char) error {
|
||||
if errStr != nil {
|
||||
gs := C.GoString(errStr)
|
||||
C.leveldb_free(unsafe.Pointer(errStr))
|
||||
return fmt.Errorf(gs)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func slice(p unsafe.Pointer, n int) []byte {
|
||||
var b []byte
|
||||
pbyte := (*reflect.SliceHeader)(unsafe.Pointer(&b))
|
||||
pbyte.Data = uintptr(p)
|
||||
pbyte.Len = n
|
||||
pbyte.Cap = n
|
||||
return b
|
||||
}
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
package store
|
||||
|
||||
import (
|
||||
"github.com/siddontang/ledisdb/config"
|
||||
"os"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func newTestHyperLevelDB() *DB {
|
||||
cfg := new(config.Config)
|
||||
cfg.DBName = "hyperleveldb"
|
||||
cfg.DataDir = "/tmp/testdb"
|
||||
|
||||
os.RemoveAll(getStorePath(cfg))
|
||||
|
||||
db, err := Open(cfg)
|
||||
if err != nil {
|
||||
println(err.Error())
|
||||
panic(err)
|
||||
}
|
||||
|
||||
return db
|
||||
}
|
||||
|
||||
func TestHyperLevelDB(t *testing.T) {
|
||||
db := newTestHyperLevelDB()
|
||||
|
||||
testStore(db, t)
|
||||
|
||||
db.Close()
|
||||
}
|
||||
Loading…
Reference in New Issue