Why Go
- Case Studies
  
  Common problems companies solve with Go
- Use Cases
  
  Stories about how and why companies use Go
- Security
  
  How Go can help keep you secure by default
Learn
Docs
- Effective Go
  
  Tips for writing clear, performant, and idiomatic Go code
- Go User Manual
  
  A complete introduction to building software with Go
- Standard library
  
  Reference documentation for Go's standard library
- Release Notes
  
  Learn what's new in each Go release
Packages
Community
- Recorded Talks
  
  Videos from prior events
- Meetups
  
  Meet other local Go developers
- Conferences
  
  Learn and network with Go developers from around the world
- Go blog
  
  The Go project's official blog.
- Go project
  
  Get help and stay informed from Go
- Get connected

gmdbx

package module

Go to main page

Versions in this module

v0

v0.1.1

Mar 12, 2025

v0.1.0

Nov 19, 2024

v0.0.5

Dec 17, 2022

v0.0.4

Dec 17, 2022

v0.0.3

Nov 23, 2022

v0.0.2

Nov 15, 2022

v0.0.1

Nov 12, 2022

Changes in this version

+ const CopyCompact

+ const CopyDefaults

+ const CopyForceDynamicSize

+ const CursorFirst

+ const CursorFirstDup

+ const CursorGetBoth

+ const CursorGetBothRange

+ const CursorGetCurrent

+ const CursorGetMultiple

+ const CursorLast

+ const CursorLastDup

+ const CursorNext

+ const CursorNextDup

+ const CursorNextMultiple

+ const CursorNextNoDup

+ const CursorPrev

+ const CursorPrevDup

+ const CursorPrevMultiple

+ const CursorPrevNoDup

+ const CursorSet

+ const CursorSetKey

+ const CursorSetLowerBound

+ const CursorSetRange

+ const CursorSetUpperBound

+ const DBAccede

+ const DBCreate

+ const DBDefaults

+ const DBDupFixed

+ const DBDupSort

+ const DBIStateCreat

+ const DBIStateDirty

+ const DBIStateFresh

+ const DBIStateState

+ const DBIntegerGroup

+ const DBIntegerKey

+ const DBReverseDup

+ const DBReverseKey

+ const DefaultFlags

+ const DeleteModeEnsureUnused

+ const DeleteModeJustDelete

+ const DeleteModeWaitForUnused

+ const EnvAccede

+ const EnvCoalesce

+ const EnvEnvDefaults

+ const EnvExclusive

+ const EnvLIFOReclaim

+ const EnvNoMemInit

+ const EnvNoMetaSync

+ const EnvNoReadAhead

+ const EnvNoSubDir

+ const EnvNoTLS

+ const EnvPagePerTurb

+ const EnvReadOnly

+ const EnvSafeNoSync

+ const EnvSyncDurable

+ const EnvUtterlyNoSync

+ const EnvWriteMap

+ const ErrBadDBI

+ const ErrBadRSlot

+ const ErrBadTXN

+ const ErrBadValSize

+ const ErrBusy

+ const ErrCorrupted

+ const ErrCursorFull

+ const ErrDBSFull

+ const ErrEACCESS

+ const ErrEBadSign

+ const ErrEINTR

+ const ErrEINVAL

+ const ErrEIO

+ const ErrEKeyMismatch

+ const ErrEMultiVal

+ const ErrENODAT

+ const ErrENOENT

+ const ErrENOMEM

+ const ErrENOSYS

+ const ErrENOTBLK

+ const ErrEPERM

+ const ErrEROFS

+ const ErrFirstAddedErrCode

+ const ErrFirstLMDBErrCode

+ const ErrIncompatible

+ const ErrInvalid

+ const ErrKeyExist

+ const ErrLastAddedErrcode

+ const ErrLastLMDBErrCode

+ const ErrMapFull

+ const ErrNotFound

+ const ErrPageFull

+ const ErrPageNotFound

+ const ErrPanic

+ const ErrProblem

+ const ErrReadersFull

+ const ErrResultFalse

+ const ErrResultTrue

+ const ErrSuccess

+ const ErrTXNFull

+ const ErrTXNOverlapping

+ const ErrThreadMismatch

+ const ErrTooLarge

+ const ErrUnableExtendMapSize

+ const ErrVersionMismatch

+ const ErrWannaRecovery

+ const LogDebug

+ const LogDontChange

+ const LogError

+ const LogExtra

+ const LogFatal

+ const LogMax

+ const LogNotice

+ const LogTrace

+ const LogVerbose

+ const LogWarn

+ const MaxDBI

+ const MaxDataSize

+ const MaxPageSize

+ const MinPageSize

+ const OptDpReserveLimit

+ const OptLooseLimit

+ const OptMaxDB

+ const OptMaxReaders

+ const OptMergeThreshold16Dot16Percent

+ const OptRpAugmentLimit

+ const OptSpillMaxDenomiator

+ const OptSpillMinDenomiator

+ const OptSpillParent4ChildDenominator

+ const OptSyncBytes

+ const OptSyncPeriod

+ const OptTxnDpInitial

+ const OptTxnDpLimit

+ const PutAllDups

+ const PutAppend

+ const PutAppendDup

+ const PutCurrent

+ const PutMultiple

+ const PutNoDupData

+ const PutNoOverwrite

+ const PutReserve

+ const PutUpsert

+ const SimpleFlags

+ const TxNoMetaSync

+ const TxNoSync

+ const TxReadOnly

+ const TxReadOnlyPrepare

+ const TxReadWrite

+ const TxTry

+ var CmpU16 = (*Cmp)(C.mdbx_cmp_u16)

+ var CmpU16PrefixLexical = (*Cmp)(C.mdbx_cmp_u16_prefix_lexical)

+ var CmpU16PrefixU64 = (*Cmp)(C.mdbx_cmp_u16_prefix_u64)

+ var CmpU32 = (*Cmp)(C.mdbx_cmp_u32)

+ var CmpU32PrefixLexical = (*Cmp)(C.mdbx_cmp_u32_prefix_lexical)

+ var CmpU32PrefixU64 = (*Cmp)(C.mdbx_cmp_u32_prefix_u64)

+ var CmpU32PrefixU64DupLexical = (*Cmp)(C.mdbx_cmp_u32_prefix_u64_dup_lexical)

+ var CmpU32PrefixU64DupU64 = (*Cmp)(C.mdbx_cmp_u32_prefix_u64_dup_u64)

+ var CmpU64 = (*Cmp)(C.mdbx_cmp_u64)

+ var CmpU64PrefixLexical = (*Cmp)(C.mdbx_cmp_u64_prefix_lexical)

+ var CmpU64PrefixU64 = (*Cmp)(C.mdbx_cmp_u64_prefix_u64)

+ var CmpU64PrefixU64DupLexical = (*Cmp)(C.mdbx_cmp_u64_prefix_u64_dup_lexical)

+ var CmpU64PrefixU64DupU64 = (*Cmp)(C.mdbx_cmp_u64_prefix_u64_dup_u64)

+ var DefaultGeometry = Geometry

+ var DefaultOption = Option

+ var NotFound = errors.New("not found")

+ func NewEnv() (*Env, Error)

+ type Canary struct

+ V uint64

+ X uint64

+ Y uint64

+ Z uint64

+ type Cmp C.MDBX_cmp_func

+ type CommitLatency struct

+ Audit uint32

+ Ending uint32

+ GC uint32

+ Preparation uint32

+ Sync uint32

+ Whole uint32

+ Write uint32

+ type CopyFlags uint32

+ type Cursor C.MDBX_cursor

+ func NewCursor() *Cursor

+ func (cur *Cursor) Close() Error

+ func (cur *Cursor) Copy(dest *Cursor) Error

+ func (cur *Cursor) Count() (int, Error)

+ func (cur *Cursor) DBI() DBI

+ func (cur *Cursor) Delete(flags PutFlags) Error

+ func (cur *Cursor) EOF() Error

+ func (cur *Cursor) First() Error

+ func (cur *Cursor) Get(key *Val, data *Val, op CursorOp) Error

+ func (cur *Cursor) Last() Error

+ func (cur *Cursor) Put(key *Val, data *Val, flags PutFlags) Error

+ func (cur *Cursor) Renew(tx *Tx) Error

+ func (cur *Cursor) Tx() *C.MDBX_txn

+ type CursorOp int32

+ type DB struct

+ func New(path string) (*DB, error)

+ func (d *DB) Close() error

+ func (d *DB) CloseDBI(dbi DBI) error

+ func (d *DB) Open() error

+ func (d *DB) SetEnvOption(opt Opt, value uint64) error

+ func (d *DB) SetOption(opts *Option)

+ func (d *DB) Update(fn func(tx *Tx) error) error

+ func (d *DB) View(fn func(tx *Tx) error) error

+ type DBFlags uint32

+ type DBI uint32

+ type DBIState uint32

+ type DeleteMode int32

+ type Env struct

+ func (env *Env) Begin(txn *Tx, flags TxFlags) Error

+ func (env *Env) Close(dontSync bool) Error

+ func (env *Env) CloseDBI(dbi DBI) Error

+ func (env *Env) Copy(dest string, flags CopyFlags) Error

+ func (env *Env) FD() (uintptr, error)

+ func (env *Env) GetDPReserveLimit() (uint64, Error)

+ func (env *Env) GetFlags() (EnvFlags, Error)

+ func (env *Env) GetLooseLimit() (uint64, Error)

+ func (env *Env) GetMaxDBS() (uint64, Error)

+ func (env *Env) GetMaxReaders() (uint64, Error)

+ func (env *Env) GetMergeThreshold16Dot16Percent() (uint64, Error)

+ func (env *Env) GetOption(option Opt) (uint64, Error)

+ func (env *Env) GetRPAugmentLimit() (uint64, Error)

+ func (env *Env) GetSpillMaxDenominator() (uint64, Error)

+ func (env *Env) GetSpillMinDenominator() (uint64, Error)

+ func (env *Env) GetSpillParent4ChildDeominator() (uint64, Error)

+ func (env *Env) GetSyncBytes() (uint64, Error)

+ func (env *Env) GetSyncPeriod() (uint64, Error)

+ func (env *Env) GetTxDPInitial() (uint64, Error)

+ func (env *Env) GetTxDPLimit() (uint64, Error)

+ func (env *Env) MaxKeySize() int

+ func (env *Env) Open(path string, flags EnvFlags, mode os.FileMode) Error

+ func (env *Env) Path() (string, error)

+ func (env *Env) ReaderCheck() (int, error)

+ func (env *Env) SetDPReserveLimit(limit uint64) Error

+ func (env *Env) SetFlags(flags EnvFlags, onoff bool) Error

+ func (env *Env) SetGeometry(args Geometry) Error

+ func (env *Env) SetLooseLimit(limit uint64) Error

+ func (env *Env) SetMaxDBS(max uint16) Error

+ func (env *Env) SetMaxReaders(max uint64) Error

+ func (env *Env) SetMergeThreshold16Dot16Percent(percent uint64) Error

+ func (env *Env) SetOption(option Opt, value uint64) Error

+ func (env *Env) SetRPAugmentLimit(limit uint64) Error

+ func (env *Env) SetSpillMaxDenominator(max uint64) Error

+ func (env *Env) SetSpillMinDenominator(min uint64) Error

+ func (env *Env) SetSpillParent4ChildDeominator(value uint64) Error

+ func (env *Env) SetSyncBytes(bytes uint64) Error

+ func (env *Env) SetSyncPeriod(period uint64) Error

+ func (env *Env) SetTxDPInitial(initial uint64) Error

+ func (env *Env) SetTxDPLimit(limit uint64) Error

+ func (env *Env) Sync(force, nonblock bool) Error

+ type EnvFlags uint32

+ type EnvInfo struct

+ AutoSyncPeriodSeconds16Dot16 uint32

+ AutoSyncThreshold uint64

+ BootID struct{ ... }

+ DXBPageSize uint32

+ Geo struct{ ... }

+ LastPageNumber uint64

+ LatterReaderTxnID uint64

+ MIMeta0Sign uint64

+ MIMeta1Sign uint64

+ MIMeta2Sign uint64

+ MapSize uint64

+ MaxReaders uint32

+ Meta0TxnID uint64

+ Meta1TxnID uint64

+ Meta2TxnID uint64

+ Mode uint32

+ NumReaders uint32

+ PGOpStat struct{ ... }

+ RecentTxnID uint64

+ SelfLatterReaderTxnID uint64

+ SinceReaderCheckSeconds16Dot16 uint32

+ SinceSyncSeconds16Dot16 uint32

+ SysPageSize uint32

+ UnSyncVolume uint64

+ type Error int32

+ func Delete(path string, mode DeleteMode) Error

+ func EstimateDistance(first, last *Cursor) (int64, Error)

+ func (e Error) Error() string

+ type Geometry struct

+ GrowthStep uintptr

+ PageSize uintptr

+ ShrinkThreshold uintptr

+ SizeLower uintptr

+ SizeNow uintptr

+ SizeUpper uintptr

+ type LogLevel int32

+ type Opt int32

+ type Option struct

+ Flags EnvFlags

+ Geometry Geometry

+ MaxDBS uint16

+ Path string

+ TxnDpLimit uint16

+ type PutFlags uint32

+ type Stats struct

+ BranchPages uint64

+ Depth uint32

+ Entries uint64

+ LeafPages uint64

+ ModTxnID uint64

+ OverflowPages uint64

+ PageSize uint32

+ type Tx struct

+ func NewTransaction(env *Env) *Tx

+ func (tx *Tx) Abort() Error

+ func (tx *Tx) Bind(cursor *Cursor, dbi DBI) Error

+ func (tx *Tx) Break() Error

+ func (tx *Tx) Commit() Error

+ func (tx *Tx) CommitEx(latency *CommitLatency) Error

+ func (tx *Tx) DBIFlags(dbi DBI) (DBFlags, DBIState, Error)

+ func (tx *Tx) DBIStat(dbi DBI, stat *Stats) Error

+ func (tx *Tx) Delete(dbi DBI, key *Val, data *Val) Error

+ func (tx *Tx) Drop(dbi DBI, del bool) Error

+ func (tx *Tx) EnvInfo(info *EnvInfo) Error

+ func (tx *Tx) Flags() int32

+ func (tx *Tx) Get(dbi DBI, key *Val, data *Val) Error

+ func (tx *Tx) GetCanary(canary *Canary) Error

+ func (tx *Tx) GetEqualOrGreat(dbi DBI, key *Val, data *Val) Error

+ func (tx *Tx) GetEx(dbi DBI, key *Val, data *Val) (int, Error)

+ func (tx *Tx) ID() uint64

+ func (tx *Tx) Info(info *TxInfo) Error

+ func (tx *Tx) IsAborted() bool

+ func (tx *Tx) IsCommitted() bool

+ func (tx *Tx) IsReset() bool

+ func (tx *Tx) OpenCursor(dbi DBI) (*Cursor, Error)

+ func (tx *Tx) OpenDBI(name string, flags DBFlags) (DBI, Error)

+ func (tx *Tx) Put(dbi DBI, key *Val, data *Val, flags PutFlags) Error

+ func (tx *Tx) PutCanary(canary *Canary) Error

+ func (tx *Tx) Renew() Error

+ func (tx *Tx) Replace(dbi DBI, key *Val, data *Val, oldData *Val, flags PutFlags) Error

+ func (tx *Tx) Reset() Error

+ type TxFlags uint32

+ type TxInfo struct

+ ID uint64

+ ReaderLag uint64

+ SpaceDirty uint64

+ SpaceLeftover uint64

+ SpaceLimitHard uint64

+ SpaceLimitSoft uint64

+ SpaceRetired uint64

+ SpaceUsed uint64

+ type Val syscall.Iovec

+ func Bytes(b *[]byte) Val

+ func F32(v *float32) Val

+ func F64(v *float64) Val

+ func I16(v *int16) Val

+ func I32(v *int32) Val

+ func I64(v *int64) Val

+ func I8(v *int8) Val

+ func String(s *string) Val

+ func StringConst(s string) Val

+ func ToVal(v T) Val

+ func U16(v *uint16) Val

+ func U32(v *uint32) Val

+ func U64(v *uint64) Val

+ func U8(v *uint8) Val

+ func (v *Val) Bytes() []byte

+ func (v *Val) Copy(dst []byte) []byte

+ func (v *Val) F32() float32

+ func (v *Val) F64() float64

+ func (v *Val) I16() int16

+ func (v *Val) I32() int32

+ func (v *Val) I64() int64

+ func (v *Val) I8() int8

+ func (v *Val) String() string

+ func (v *Val) U16() uint16

+ func (v *Val) U32() uint32

+ func (v *Val) U64() uint64

+ func (v *Val) U8() uint8

+ func (v *Val) UnsafeBytes() []byte

+ func (v *Val) UnsafeString() string