proto

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v2.0.0-alpha1+incompat... Latest Latest
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 Go to latest Published: Aug 25, 2015 License: BSD-3-Clause Imports: 19 Imported by: 0

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Index

Constants

View Source 
const (
	// TableBaseTable indicates the table type is a base table.
	TableBaseTable = "BASE TABLE"
	// TableView indicates the table type is a view.
	TableView = "VIEW"
)

Variables

This section is empty.

Functions

func DbPermissionToProto 

func DbPermissionToProto(d *DbPermission) *pbt.DbPermission

DbPermissionToProto translates a DbPermission to proto

func DiffPermissions 

func DiffPermissions(leftName string, left *Permissions, rightName string, right *Permissions, er concurrency.ErrorRecorder)

func DiffPermissionsToArray 

func DiffPermissionsToArray(leftName string, left *Permissions, rightName string, right *Permissions) (result []string)

func DiffSchema 

func DiffSchema(leftName string, left *SchemaDefinition, rightName string, right *SchemaDefinition, er concurrency.ErrorRecorder)

DiffSchema generates a report on what's different between two SchemaDefinitions including views.

func DiffSchemaToArray 

func DiffSchemaToArray(leftName string, left *SchemaDefinition, rightName string, right *SchemaDefinition) (result []string)

DiffSchemaToArray diffs two schemas and return the schema diffs if there is any.

func EncodeGTID 

func EncodeGTID(gtid GTID) string

EncodeGTID returns a string that contains both the flavor and value of the GTID, so that the correct parser can be selected when that string is passed to DecodeGTID.

func EncodeReplicationPosition 

func EncodeReplicationPosition(rp ReplicationPosition) string

EncodeReplicationPosition returns a string that contains both the flavor and value of the ReplicationPosition, so that the correct parser can be selected when that string is passed to DecodeReplicationPosition.

func HostPermissionToProto 

func HostPermissionToProto(h *HostPermission) *pbt.HostPermission

HostPermissionToProto translates a HostPermission to proto

func PermissionsToProto 

func PermissionsToProto(h *Permissions) *pbt.Permissions

PermissionsToProto translates a Permissions to proto

func ReplicationStatusToProto 

func ReplicationStatusToProto(r ReplicationStatus) *pb.Status

ReplicationStatusToProto translates a ReplicationStatus to proto, or panics

func SchemaDefinitionToProto 

func SchemaDefinitionToProto(s *SchemaDefinition) *pbt.SchemaDefinition

SchemaDefinitionToProto translates a SchemaDefinition to proto

func TableDefinitionToProto 

func TableDefinitionToProto(t *TableDefinition) *pbt.TableDefinition

TableDefinitionToProto translates a TableDefinition to proto

func UserPermissionToProto 

func UserPermissionToProto(u *UserPermission) *pbt.UserPermission

UserPermissionToProto translates a UserPermission to proto

Types

type DbPermission 

type DbPermission struct {
	Host       string
	Db         string
	User       string
	Privileges map[string]string
}

DbPermission describes a single row in the mysql.db table Primary key is Host+Db+User

func NewDbPermission 

func NewDbPermission(fields []proto.Field, values []sqltypes.Value) *DbPermission

func ProtoToDbPermission 

func ProtoToDbPermission(d *pbt.DbPermission) *DbPermission

ProtoToDbPermission translates a proto to a DbPermission

func (*DbPermission) PrimaryKey 

func (dp *DbPermission) PrimaryKey() string

func (*DbPermission) String 

func (dp *DbPermission) String() string

type DbPermissionList 

type DbPermissionList []*DbPermission

func (DbPermissionList) Get 

func (upl DbPermissionList) Get(i int) Permission

func (DbPermissionList) Len 

func (upl DbPermissionList) Len() int

type GTID 

type GTID interface {
	// String returns the canonical printed form of the GTID as expected by a
	// particular flavor of MySQL.
	String() string

	// Flavor returns the key under which the corresponding GTID parser function
	// is registered in the gtidParsers map.
	Flavor() string

	// SourceServer returns the ID of the server that generated the transaction.
	SourceServer() interface{}

	// SequenceNumber returns the ID number that increases with each transaction.
	// It is only valid to compare the sequence numbers of two GTIDs if they have
	// the same domain value.
	SequenceNumber() interface{}

	// SequenceDomain returns the ID of the domain within which two sequence
	// numbers can be meaningfully compared.
	SequenceDomain() interface{}

	// GTIDSet returns a GTIDSet of the same flavor as this GTID, containing only
	// this GTID.
	GTIDSet() GTIDSet
}

GTID represents a Global Transaction ID, also known as Transaction Group ID. Each flavor of MySQL has its own format for the GTID. This interface is used along with various MysqlFlavor implementations to abstract the differences.

Types that implement GTID should use a non-pointer receiver. This ensures that comparing GTID interface values with == has the expected semantics.

func DecodeGTID 

func DecodeGTID(s string) (GTID, error)

DecodeGTID converts a string in the format returned by EncodeGTID back into a GTID interface value with the correct underlying flavor.

func MustDecodeGTID 

func MustDecodeGTID(s string) GTID

MustDecodeGTID calls DecodeGTID and panics on error.

func MustParseGTID 

func MustParseGTID(flavor, value string) GTID

MustParseGTID calls ParseGTID and panics on error.

func ParseGTID 

func ParseGTID(flavor, value string) (GTID, error)

ParseGTID calls the GTID parser for the specified flavor.

type GTIDField 

type GTIDField struct {
	Value GTID
}

GTIDField is a concrete struct that contains a GTID interface value. This can be used as a field inside marshalable structs, which cannot contain interface values because there would be no way to know which concrete type to instantiate upon unmarshaling.

Note: GTIDField should not implement GTID, because it would tend to create subtle bugs. For example, the compiler would allow something like this: 

GTIDField{googleGTID{1234}} == googleGTID{1234}

But it would evaluate to false (because the underlying types don't match), which is probably not what was expected.

func (GTIDField) MarshalBson 

func (gf GTIDField) MarshalBson(buf *bytes2.ChunkedWriter, key string)

MarshalBson bson-encodes GTIDField.

func (GTIDField) MarshalJSON 

func (gf GTIDField) MarshalJSON() ([]byte, error)

MarshalJSON implements encoding/json.Marshaler.

func (GTIDField) String 

func (gf GTIDField) String() string

String returns a string representation of the underlying GTID. If the GTID value is nil, it returns "<nil>" in the style of Sprintf("%v", nil).

func (*GTIDField) UnmarshalBson 

func (gf *GTIDField) UnmarshalBson(buf *bytes.Buffer, kind byte)

UnmarshalBson bson-decodes into GTIDField.

func (*GTIDField) UnmarshalJSON 

func (gf *GTIDField) UnmarshalJSON(buf []byte) error

UnmarshalJSON implements encoding/json.Unmarshaler.

type GTIDSet 

type GTIDSet interface {
	// String returns the canonical printed form of the set as expected by a
	// particular flavor of MySQL.
	String() string

	// Flavor returns the key under which the corresponding parser function is
	// registered in the transactionSetParsers map.
	Flavor() string

	// ContainsGTID returns true if the set contains the specified transaction.
	ContainsGTID(GTID) bool

	// Contains returns true if the set is a superset of another set.
	Contains(GTIDSet) bool

	// Equal returns true if the set is equal to another set.
	Equal(GTIDSet) bool

	// AddGTID returns a new GTIDSet that is expanded to contain the given GTID.
	AddGTID(GTID) GTIDSet
}

GTIDSet represents the set of transactions received or applied by a server. In some flavors, a single GTID is enough to specify the set of all transactions that came before it, but in others a more complex structure is required.

GTIDSet is wrapped by ReplicationPosition, which is a concrete struct that enables JSON and BSON marshaling. Most code outside of this package should use ReplicationPosition rather than GTIDSet.

type HostPermission 

type HostPermission struct {
	Host       string
	Db         string
	Privileges map[string]string
}

HostPermission describes a single row in the mysql.host table Primary key is Host+Db

func NewHostPermission 

func NewHostPermission(fields []proto.Field, values []sqltypes.Value) *HostPermission

func ProtoToHostPermission 

func ProtoToHostPermission(h *pbt.HostPermission) *HostPermission

ProtoToHostPermission translates a proto to a HostPermission

func (*HostPermission) PrimaryKey 

func (hp *HostPermission) PrimaryKey() string

func (*HostPermission) String 

func (hp *HostPermission) String() string

type HostPermissionList 

type HostPermissionList []*HostPermission

func (HostPermissionList) Get 

func (upl HostPermissionList) Get(i int) Permission

func (HostPermissionList) Len 

func (upl HostPermissionList) Len() int

type MariadbGTID 

type MariadbGTID struct {
	// Domain is the ID number of the domain within which sequence numbers apply.
	Domain uint32
	// Server is the ID of the server that generated the transaction.
	Server uint32
	// Sequence is the sequence number of the transaction within the domain.
	Sequence uint64
}

MariadbGTID implements GTID.

func (MariadbGTID) AddGTID 

func (gtid MariadbGTID) AddGTID(other GTID) GTIDSet

AddGTID implements GTIDSet.AddGTID().

func (MariadbGTID) Contains 

func (gtid MariadbGTID) Contains(other GTIDSet) bool

Contains implements GTIDSet.Contains().

func (MariadbGTID) ContainsGTID 

func (gtid MariadbGTID) ContainsGTID(other GTID) bool

ContainsGTID implements GTIDSet.ContainsGTID().

func (MariadbGTID) Equal 

func (gtid MariadbGTID) Equal(other GTIDSet) bool

Equal implements GTIDSet.Equal().

func (MariadbGTID) Flavor 

func (gtid MariadbGTID) Flavor() string

Flavor implements GTID.Flavor().

func (MariadbGTID) GTIDSet 

func (gtid MariadbGTID) GTIDSet() GTIDSet

GTIDSet implements GTID.GTIDSet().

func (MariadbGTID) SequenceDomain 

func (gtid MariadbGTID) SequenceDomain() interface{}

SequenceDomain implements GTID.SequenceDomain().

func (MariadbGTID) SequenceNumber 

func (gtid MariadbGTID) SequenceNumber() interface{}

SequenceNumber implements GTID.SequenceNumber().

func (MariadbGTID) SourceServer 

func (gtid MariadbGTID) SourceServer() interface{}

SourceServer implements GTID.SourceServer().

func (MariadbGTID) String 

func (gtid MariadbGTID) String() string

String implements GTID.String().

type Mysql56GTID 

type Mysql56GTID struct {
	// Server is the SID of the server that originally committed the transaction.
	Server SID
	// Sequence is the sequence number of the transaction within a given Server's
	// scope.
	Sequence int64
}

Mysql56GTID implements GTID

func (Mysql56GTID) Flavor 

func (gtid Mysql56GTID) Flavor() string

Flavor implements GTID.Flavor().

func (Mysql56GTID) GTIDSet 

func (gtid Mysql56GTID) GTIDSet() GTIDSet

GTIDSet implements GTID.GTIDSet().

func (Mysql56GTID) SequenceDomain 

func (gtid Mysql56GTID) SequenceDomain() interface{}

SequenceDomain implements GTID.SequenceDomain().

func (Mysql56GTID) SequenceNumber 

func (gtid Mysql56GTID) SequenceNumber() interface{}

SequenceNumber implements GTID.SequenceNumber().

func (Mysql56GTID) SourceServer 

func (gtid Mysql56GTID) SourceServer() interface{}

SourceServer implements GTID.SourceServer().

func (Mysql56GTID) String 

func (gtid Mysql56GTID) String() string

String implements GTID.String().

type Mysql56GTIDSet 

type Mysql56GTIDSet map[SID][]interval

Mysql56GTIDSet implements GTIDSet for MySQL 5.6.

func (Mysql56GTIDSet) AddGTID 

func (set Mysql56GTIDSet) AddGTID(gtid GTID) GTIDSet

AddGTID implements GTIDSet.

func (Mysql56GTIDSet) Contains 

func (set Mysql56GTIDSet) Contains(other GTIDSet) bool

Contains implements GTIDSet.

func (Mysql56GTIDSet) ContainsGTID 

func (set Mysql56GTIDSet) ContainsGTID(gtid GTID) bool

ContainsGTID implements GTIDSet.

func (Mysql56GTIDSet) Equal 

func (set Mysql56GTIDSet) Equal(other GTIDSet) bool

Equal implements GTIDSet.

func (Mysql56GTIDSet) Flavor 

func (Mysql56GTIDSet) Flavor() string

Flavor implements GTIDSet.

func (Mysql56GTIDSet) SIDBlock 

func (set Mysql56GTIDSet) SIDBlock() []byte

SIDBlock returns the binary encoding of a MySQL 5.6 GTID set as expected by internal commands that refer to an "SID block".

e.g. https://dev.mysql.com/doc/internals/en/com-binlog-dump-gtid.html

func (Mysql56GTIDSet) SIDs 

func (set Mysql56GTIDSet) SIDs() []SID

SIDs returns a sorted list of SIDs in the set.

func (Mysql56GTIDSet) String 

func (set Mysql56GTIDSet) String() string

String implements GTIDSet.

type Permission 

type Permission interface {
	PrimaryKey() string
	String() string
}

type PermissionList 

type PermissionList interface {
	Get(int) Permission
	Len() int
}

type Permissions 

type Permissions struct {
	UserPermissions UserPermissionList
	DbPermissions   DbPermissionList
	HostPermissions HostPermissionList
}

Permissions have all the rows in mysql.{user,db,host} tables, (all rows are sorted by primary key)

func ProtoToPermissions 

func ProtoToPermissions(h *pbt.Permissions) *Permissions

ProtoToPermissions translates a proto to a Permissions

func (*Permissions) String 

func (permissions *Permissions) String() string

type ReplicationPosition 

type ReplicationPosition struct {
	GTIDSet GTIDSet
	// contains filtered or unexported fields
}

ReplicationPosition represents the information necessary to describe which transactions a server has seen, so that it can request a replication stream from a new master that picks up where it left off.

This must be a concrete struct because custom Unmarshalers can't be registered on an interface.

The == operator should not be used with ReplicationPosition, because the underlying GTIDSet might use slices, which are not comparable. Using == in those cases will result in a run-time panic.

func AppendGTID 

func AppendGTID(rp ReplicationPosition, gtid GTID) ReplicationPosition

AppendGTID returns a new ReplicationPosition that represents the position after the given GTID is replicated.

func DecodeReplicationPosition 

func DecodeReplicationPosition(s string) (rp ReplicationPosition, err error)

DecodeReplicationPosition converts a string in the format returned by EncodeReplicationPosition back into a ReplicationPosition value with the correct underlying flavor.

func MustParseReplicationPosition 

func MustParseReplicationPosition(flavor, value string) ReplicationPosition

MustParseReplicationPosition calls ParseReplicationPosition and panics on error.

func ParseReplicationPosition 

func ParseReplicationPosition(flavor, value string) (rp ReplicationPosition, err error)

ParseReplicationPosition calls the parser for the specified flavor.

func (ReplicationPosition) AtLeast 

func (rp ReplicationPosition) AtLeast(other ReplicationPosition) bool

AtLeast returns true if this position is equal to or after another.

func (ReplicationPosition) Equal 

func (rp ReplicationPosition) Equal(other ReplicationPosition) bool

Equal returns true if this position is equal to another.

func (ReplicationPosition) IsZero 

func (rp ReplicationPosition) IsZero() bool

IsZero returns true if this is the zero value, ReplicationPosition{}.

func (ReplicationPosition) MarshalBson 

func (rp ReplicationPosition) MarshalBson(buf *bytes2.ChunkedWriter, key string)

MarshalBson bson-encodes ReplicationPosition.

func (ReplicationPosition) MarshalJSON 

func (rp ReplicationPosition) MarshalJSON() ([]byte, error)

MarshalJSON implements encoding/json.Marshaler.

func (ReplicationPosition) String 

func (rp ReplicationPosition) String() string

String returns a string representation of the underlying GTIDSet. If the set is nil, it returns "<nil>" in the style of Sprintf("%v", nil).

func (*ReplicationPosition) UnmarshalBson 

func (rp *ReplicationPosition) UnmarshalBson(buf *bytes.Buffer, kind byte)

UnmarshalBson bson-decodes into ReplicationPosition.

func (*ReplicationPosition) UnmarshalJSON 

func (rp *ReplicationPosition) UnmarshalJSON(buf []byte) error

UnmarshalJSON implements encoding/json.Unmarshaler.

type ReplicationStatus 

type ReplicationStatus struct {
	Position            ReplicationPosition
	SlaveIORunning      bool
	SlaveSQLRunning     bool
	SecondsBehindMaster uint
	MasterHost          string
	MasterPort          int
	MasterConnectRetry  int
}

ReplicationStatus holds replication information from SHOW SLAVE STATUS.

func NewReplicationStatus 

func NewReplicationStatus(masterAddr string) (*ReplicationStatus, error)

NewReplicationStatus creates a ReplicationStatus pointing to masterAddr.

func ProtoToReplicationStatus 

func ProtoToReplicationStatus(r *pb.Status) ReplicationStatus

ProtoToReplicationStatus translates a proto ReplicationStatus, or panics

func (*ReplicationStatus) MasterAddr 

func (rs *ReplicationStatus) MasterAddr() string

MasterAddr returns the host:port address of the master.

func (*ReplicationStatus) SlaveRunning 

func (rs *ReplicationStatus) SlaveRunning() bool

SlaveRunning returns true iff both the Slave IO and Slave SQL threads are running.

type SID 

type SID [16]byte

SID is the 16-byte unique ID of a MySQL 5.6 server.

func ParseSID 

func ParseSID(s string) (sid SID, err error)

ParseSID parses an SID in the form used by MySQL 5.6.

func (SID) String 

func (sid SID) String() string

String prints an SID in the form used by MySQL 5.6.

type SchemaChange 

type SchemaChange struct {
	Sql              string
	Force            bool
	AllowReplication bool
	BeforeSchema     *SchemaDefinition
	AfterSchema      *SchemaDefinition
}

SchemaChange contains all necessary information to apply a schema change.

type SchemaChangeResult 

type SchemaChangeResult struct {
	BeforeSchema *SchemaDefinition
	AfterSchema  *SchemaDefinition
}

SchemaChangeResult contains before and after table schemas for a schema change sql.

type SchemaDefinition 

type SchemaDefinition struct {
	// the 'CREATE DATABASE...' statement, with db name as {{.DatabaseName}}
	DatabaseSchema string

	// ordered by TableDefinition.Name by default
	TableDefinitions TableDefinitions

	// the md5 of the concatenation of TableDefinition.Schema
	Version string
}

SchemaDefinition defines schema for a certain database.

func ProtoToSchemaDefinition 

func ProtoToSchemaDefinition(s *pbt.SchemaDefinition) *SchemaDefinition

ProtoToSchemaDefinition translates a proto to a SchemaDefinition

func (*SchemaDefinition) FilterTables 

func (sd *SchemaDefinition) FilterTables(tables, excludeTables []string, includeViews bool) (*SchemaDefinition, error)

FilterTables returns a copy which includes only whitelisted tables (tables), no blacklisted tables (excludeTables) and optionally views (includeViews).

func (*SchemaDefinition) GenerateSchemaVersion 

func (sd *SchemaDefinition) GenerateSchemaVersion()

GenerateSchemaVersion return a unique schema version string based on its TableDefinitions.

func (*SchemaDefinition) GetTable 

func (sd *SchemaDefinition) GetTable(table string) (td *TableDefinition, ok bool)

GetTable returns TableDefinition for a given table name.

func (*SchemaDefinition) ToSQLStrings 

func (sd *SchemaDefinition) ToSQLStrings() []string

ToSQLStrings converts a SchemaDefinition to an array of SQL strings. The array contains all the SQL statements needed for creating the database, tables, and views - in that order. All SQL statements will have {{.DatabaseName}} in place of the actual db name.

type TableDefinition 

type TableDefinition struct {
	Name              string   // the table name
	Schema            string   // the SQL to run to create the table
	Columns           []string // the columns in the order that will be used to dump and load the data
	PrimaryKeyColumns []string // the columns used by the primary key, in order
	Type              string   // TableBaseTable or TableView
	DataLength        uint64   // how much space the data file takes.
	RowCount          uint64   // how many rows in the table (may

}

TableDefinition contains all schema information about a table.

func ProtoToTableDefinition 

func ProtoToTableDefinition(t *pbt.TableDefinition) *TableDefinition

ProtoToTableDefinition translates a proto into a TableDefinition

type TableDefinitions 

type TableDefinitions []*TableDefinition

TableDefinitions is a list of TableDefinition.

func (TableDefinitions) Len 

func (tds TableDefinitions) Len() int

Len returns TableDefinitions length.

func (TableDefinitions) Swap 

func (tds TableDefinitions) Swap(i, j int)

Swap used for sorting TableDefinitions.

type UserPermission 

type UserPermission struct {
	Host             string
	User             string
	PasswordChecksum uint64
	Privileges       map[string]string
}

UserPermission describes a single row in the mysql.user table Primary key is Host+User PasswordChecksum is the crc64 of the password, for security reasons

func NewUserPermission 

func NewUserPermission(fields []proto.Field, values []sqltypes.Value) *UserPermission

func ProtoToUserPermission 

func ProtoToUserPermission(u *pbt.UserPermission) *UserPermission

ProtoToUserPermission translates a proto to a UserPermission

func (*UserPermission) PrimaryKey 

func (up *UserPermission) PrimaryKey() string

func (*UserPermission) String 

func (up *UserPermission) String() string

type UserPermissionList 

type UserPermissionList []*UserPermission

func (UserPermissionList) Get 

func (upl UserPermissionList) Get(i int) Permission

func (UserPermissionList) Len 

func (upl UserPermissionList) Len() int

Source Files

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