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127 lines
2.8 KiB
Go
127 lines
2.8 KiB
Go
// +build leveldb
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package leveldb
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// #cgo LDFLAGS: -lleveldb
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// #include "leveldb/c.h"
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import "C"
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type CompressionOpt int
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const (
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NoCompression = CompressionOpt(0)
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SnappyCompression = CompressionOpt(1)
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)
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type Options struct {
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Opt *C.leveldb_options_t
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}
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type ReadOptions struct {
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Opt *C.leveldb_readoptions_t
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}
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type WriteOptions struct {
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Opt *C.leveldb_writeoptions_t
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}
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func NewOptions() *Options {
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opt := C.leveldb_options_create()
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return &Options{opt}
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}
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func NewReadOptions() *ReadOptions {
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opt := C.leveldb_readoptions_create()
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return &ReadOptions{opt}
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}
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func NewWriteOptions() *WriteOptions {
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opt := C.leveldb_writeoptions_create()
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return &WriteOptions{opt}
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}
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func (o *Options) Close() {
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C.leveldb_options_destroy(o.Opt)
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}
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func (o *Options) SetComparator(cmp *C.leveldb_comparator_t) {
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C.leveldb_options_set_comparator(o.Opt, cmp)
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}
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func (o *Options) SetErrorIfExists(error_if_exists bool) {
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eie := boolToUchar(error_if_exists)
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C.leveldb_options_set_error_if_exists(o.Opt, eie)
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}
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func (o *Options) SetCache(cache *Cache) {
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C.leveldb_options_set_cache(o.Opt, cache.Cache)
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}
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func (o *Options) SetWriteBufferSize(s int) {
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C.leveldb_options_set_write_buffer_size(o.Opt, C.size_t(s))
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}
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func (o *Options) SetParanoidChecks(pc bool) {
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C.leveldb_options_set_paranoid_checks(o.Opt, boolToUchar(pc))
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}
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func (o *Options) SetMaxOpenFiles(n int) {
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C.leveldb_options_set_max_open_files(o.Opt, C.int(n))
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}
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func (o *Options) SetMaxFileSize(n int) {
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C.leveldb_options_set_max_file_size(o.Opt, C.size_t(n))
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}
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func (o *Options) SetBlockSize(s int) {
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C.leveldb_options_set_block_size(o.Opt, C.size_t(s))
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}
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func (o *Options) SetBlockRestartInterval(n int) {
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C.leveldb_options_set_block_restart_interval(o.Opt, C.int(n))
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}
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func (o *Options) SetCompression(t CompressionOpt) {
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C.leveldb_options_set_compression(o.Opt, C.int(t))
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}
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func (o *Options) SetCreateIfMissing(b bool) {
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C.leveldb_options_set_create_if_missing(o.Opt, boolToUchar(b))
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}
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func (o *Options) SetFilterPolicy(fp *FilterPolicy) {
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var policy *C.leveldb_filterpolicy_t
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if fp != nil {
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policy = fp.Policy
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}
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C.leveldb_options_set_filter_policy(o.Opt, policy)
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}
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func (ro *ReadOptions) Close() {
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C.leveldb_readoptions_destroy(ro.Opt)
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}
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func (ro *ReadOptions) SetVerifyChecksums(b bool) {
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C.leveldb_readoptions_set_verify_checksums(ro.Opt, boolToUchar(b))
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}
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func (ro *ReadOptions) SetFillCache(b bool) {
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C.leveldb_readoptions_set_fill_cache(ro.Opt, boolToUchar(b))
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}
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func (ro *ReadOptions) SetSnapshot(snap *Snapshot) {
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var s *C.leveldb_snapshot_t
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if snap != nil {
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s = snap.snap
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}
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C.leveldb_readoptions_set_snapshot(ro.Opt, s)
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}
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func (wo *WriteOptions) Close() {
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C.leveldb_writeoptions_destroy(wo.Opt)
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}
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func (wo *WriteOptions) SetSync(b bool) {
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C.leveldb_writeoptions_set_sync(wo.Opt, boolToUchar(b))
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}
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