server

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 Go to latest Published: Apr 19, 2017 License: Apache-2.0 Imports: 42 Imported by: 0

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Constants

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Variables

This section is empty.

Functions

This section is empty.

Types

type ColumnInfo 

type ColumnInfo struct {
	Schema             string
	Table              string
	OrgTable           string
	Name               string
	OrgName            string
	ColumnLength       uint32
	Charset            uint16
	Flag               uint16
	Decimal            uint8
	Type               uint8
	DefaultValueLength uint64
	DefaultValue       []byte
}

ColumnInfo contains information of a column

func (*ColumnInfo) Dump 

func (column *ColumnInfo) Dump(alloc arena.Allocator) []byte

Dump dumps ColumnInfo to bytes.

type Config 

type Config struct {
	Addr         string `json:"addr" toml:"addr"`
	LogLevel     string `json:"log_level" toml:"log_level"`
	SkipAuth     bool   `json:"skip_auth" toml:"skip_auth"`
	StatusAddr   string `json:"status_addr" toml:"status_addr"`
	Socket       string `json:"socket" toml:"socket"`
	ReportStatus bool   `json:"report_status" toml:"report_status"`
	StorePath    string `json:"store_path" toml:"store_path"`
	Store        string `json:"store" toml:"store"`
}

Config contains configuration options.

type FrameItem 

type FrameItem struct {
	DBName    string `json:"db_name"`
	TableName string `json:"table_name"`
	TableID   int64  `json:"table_id"`
	IsRecord  bool   `json:"is_record"`
	IndexName string `json:"index_name,omitempty"`
	IndexID   int64  `json:"index_id,omitempty"`
}

FrameItem includes a index's or record's meta data with table's info.

func NewFrameItemFromRegionKey 

func NewFrameItemFromRegionKey(key []byte) (frame *FrameItem, err error)

NewFrameItemFromRegionKey creates a FrameItem with region's startKey or endKey, returns err when key is illegal.

type IDriver 

type IDriver interface {
	// OpenCtx opens an IContext with connection id, client capability, collation and dbname.
	OpenCtx(connID uint64, capability uint32, collation uint8, dbname string) (QueryCtx, error)
}

IDriver opens IContext.

type IndexRegions 

type IndexRegions struct {
	Name    string       `json:"name"`
	ID      int64        `json:"id"`
	Regions []RegionMeta `json:"regions"`
}

IndexRegions is the region info for one index.

type PreparedStatement 

type PreparedStatement interface {
	// ID returns statement ID
	ID() int

	// Execute executes the statement.
	Execute(args ...interface{}) (ResultSet, error)

	// AppendParam appends parameter to the statement.
	AppendParam(paramID int, data []byte) error

	// NumParams returns number of parameters.
	NumParams() int

	// BoundParams returns bound parameters.
	BoundParams() [][]byte

	// SetParamsType sets type for parameters.
	SetParamsType([]byte)

	// GetParamsType returns the type for parameters.
	GetParamsType() []byte

	// Reset removes all bound parameters.
	Reset()

	// Close closes the statement.
	Close() error
}

PreparedStatement is the interface to use a prepared statement.

type QueryCtx 

type QueryCtx interface {
	// Status returns server status code.
	Status() uint16

	// LastInsertID returns last inserted ID.
	LastInsertID() uint64

	// AffectedRows returns affected rows of last executed command.
	AffectedRows() uint64

	// Value returns the value associated with this context for key.
	Value(key fmt.Stringer) interface{}

	// SetValue saves a value associated with this context for key.
	SetValue(key fmt.Stringer, value interface{})

	// CommitTxn commits the transaction operations.
	CommitTxn() error

	// RollbackTxn undoes the transaction operations.
	RollbackTxn() error

	// WarningCount returns warning count of last executed command.
	WarningCount() uint16

	// CurrentDB returns current DB.
	CurrentDB() string

	// Execute executes a SQL statement.
	Execute(sql string) ([]ResultSet, error)

	// SetClientCapability sets client capability flags
	SetClientCapability(uint32)

	// Prepare prepares a statement.
	Prepare(sql string) (statement PreparedStatement, columns, params []*ColumnInfo, err error)

	// GetStatement gets PreparedStatement by statement ID.
	GetStatement(stmtID int) PreparedStatement

	// FieldList returns columns of a table.
	FieldList(tableName string) (columns []*ColumnInfo, err error)

	// Close closes the QueryCtx.
	Close() error

	// Auth verifies user's authentication.
	Auth(user string, auth []byte, salt []byte) bool

	// ShowProcess shows the information about the session.
	ShowProcess() util.ProcessInfo

	SetSessionManager(util.SessionManager)

	// Cancel the execution of current transaction.
	Cancel()
}

QueryCtx is the interface to execute command.

type RegionDetail 

type RegionDetail struct {
	RegionID uint64      `json:"region_id"`
	StartKey []byte      `json:"start_key"`
	EndKey   []byte      `json:"end_key"`
	Frames   []FrameItem `json:"frames"`
}

RegionDetail is the response data for get region by ID it includes indices and records detail in current region.

type RegionFrameRange 

type RegionFrameRange struct {
	// contains filtered or unexported fields
}

RegionFrameRange contains a frame range info which the region covered.

func NewRegionFrameRange 

func NewRegionFrameRange(region *tikv.KeyLocation) (idxRange *RegionFrameRange, err error)

NewRegionFrameRange init a NewRegionFrameRange with region info.

type RegionHandler 

type RegionHandler struct {
	// contains filtered or unexported fields
}

RegionHandler is the common field for http region handler. It contains some common functions which would be used in TableRegionsHandler and HTTPGetRegionByIDHandler.

func (RegionHandler) ServeHTTP 

func (rh RegionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request)

ServeHTTP handles request of get region by ID.

type RegionMeta 

type RegionMeta struct {
	ID          uint64              `json:"region_id"`
	Leader      *metapb.Peer        `json:"leader"`
	Peers       []*metapb.Peer      `json:"peers"`
	RegionEpoch *metapb.RegionEpoch `json:"region_epoch"`
}

RegionMeta contains a region's peer detail

type ResultSet 

type ResultSet interface {
	Columns() ([]*ColumnInfo, error)
	Next() ([]types.Datum, error)
	Close() error
}

ResultSet is the result set of an query.

type Server 

type Server struct {
	// contains filtered or unexported fields
}

Server is the MySQL protocol server

func NewServer 

func NewServer(cfg *Config, driver IDriver) (*Server, error)

NewServer creates a new Server.

func (*Server) Close 

func (s *Server) Close()

Close closes the server.

func (*Server) ConnectionCount 

func (s *Server) ConnectionCount() int

ConnectionCount gets current connection count.

func (*Server) Kill 

func (s *Server) Kill(connectionID uint64, query bool)

Kill implements the SessionManager interface.

func (*Server) Run 

func (s *Server) Run() error

Run runs the server.

func (*Server) ShowProcessList 

func (s *Server) ShowProcessList() []util.ProcessInfo

ShowProcessList implements the SessionManager interface.

type TableRegions 

type TableRegions struct {
	TableName     string         `json:"name"`
	TableID       int64          `json:"id"`
	RecordRegions []RegionMeta   `json:"record_regions"`
	Indices       []IndexRegions `json:"indices"`
}

TableRegions is the response data for list table's regions. It contains regions list for record and indices.

type TableRegionsHandler 

type TableRegionsHandler struct {
	RegionHandler
}

TableRegionsHandler is the handler for list table's regions.

func (TableRegionsHandler) ServeHTTP 

func (rh TableRegionsHandler) ServeHTTP(w http.ResponseWriter, req *http.Request)

ServeHTTP handles request of list a table's regions.

type TiDBContext 

type TiDBContext struct {
	// contains filtered or unexported fields
}

TiDBContext implements QueryCtx.

func (*TiDBContext) AffectedRows 

func (tc *TiDBContext) AffectedRows() uint64

AffectedRows implements QueryCtx AffectedRows method.

func (*TiDBContext) Auth 

func (tc *TiDBContext) Auth(user string, auth []byte, salt []byte) bool

Auth implements QueryCtx Auth method.

func (*TiDBContext) Cancel 

func (tc *TiDBContext) Cancel()

Cancel implements QueryCtx Cancel method.

func (*TiDBContext) Close 

func (tc *TiDBContext) Close() (err error)

Close implements QueryCtx Close method.

func (*TiDBContext) CommitTxn 

func (tc *TiDBContext) CommitTxn() error

CommitTxn implements QueryCtx CommitTxn method.

func (*TiDBContext) CurrentDB 

func (tc *TiDBContext) CurrentDB() string

CurrentDB implements QueryCtx CurrentDB method.

func (*TiDBContext) Execute 

func (tc *TiDBContext) Execute(sql string) (rs []ResultSet, err error)

Execute implements QueryCtx Execute method.

func (*TiDBContext) FieldList 

func (tc *TiDBContext) FieldList(table string) (colums []*ColumnInfo, err error)

FieldList implements QueryCtx FieldList method.

func (*TiDBContext) GetStatement 

func (tc *TiDBContext) GetStatement(stmtID int) PreparedStatement

GetStatement implements QueryCtx GetStatement method.

func (*TiDBContext) LastInsertID 

func (tc *TiDBContext) LastInsertID() uint64

LastInsertID implements QueryCtx LastInsertID method.

func (*TiDBContext) Prepare 

func (tc *TiDBContext) Prepare(sql string) (statement PreparedStatement, columns, params []*ColumnInfo, err error)

Prepare implements QueryCtx Prepare method.

func (*TiDBContext) RollbackTxn 

func (tc *TiDBContext) RollbackTxn() error

RollbackTxn implements QueryCtx RollbackTxn method.

func (*TiDBContext) SetClientCapability 

func (tc *TiDBContext) SetClientCapability(flags uint32)

SetClientCapability implements QueryCtx SetClientCapability method.

func (*TiDBContext) SetSessionManager 

func (tc *TiDBContext) SetSessionManager(sm util.SessionManager)

SetSessionManager implements the QueryCtx interface.

func (*TiDBContext) SetValue 

func (tc *TiDBContext) SetValue(key fmt.Stringer, value interface{})

SetValue implements QueryCtx SetValue method.

func (*TiDBContext) ShowProcess 

func (tc *TiDBContext) ShowProcess() util.ProcessInfo

ShowProcess implements QueryCtx ShowProcess method.

func (*TiDBContext) Status 

func (tc *TiDBContext) Status() uint16

Status implements QueryCtx Status method.

func (*TiDBContext) Value 

func (tc *TiDBContext) Value(key fmt.Stringer) interface{}

Value implements QueryCtx Value method.

func (*TiDBContext) WarningCount 

func (tc *TiDBContext) WarningCount() uint16

WarningCount implements QueryCtx WarningCount method.

type TiDBDriver 

type TiDBDriver struct {
	// contains filtered or unexported fields
}

TiDBDriver implements IDriver.

func NewTiDBDriver 

func NewTiDBDriver(store kv.Storage) *TiDBDriver

NewTiDBDriver creates a new TiDBDriver.

func (*TiDBDriver) OpenCtx 

func (qd *TiDBDriver) OpenCtx(connID uint64, capability uint32, collation uint8, dbname string) (QueryCtx, error)

OpenCtx implements IDriver.

type TiDBStatement 

type TiDBStatement struct {
	// contains filtered or unexported fields
}

TiDBStatement implements PreparedStatement.

func (*TiDBStatement) AppendParam 

func (ts *TiDBStatement) AppendParam(paramID int, data []byte) error

AppendParam implements PreparedStatement AppendParam method.

func (*TiDBStatement) BoundParams 

func (ts *TiDBStatement) BoundParams() [][]byte

BoundParams implements PreparedStatement BoundParams method.

func (*TiDBStatement) Close 

func (ts *TiDBStatement) Close() error

Close implements PreparedStatement Close method.

func (*TiDBStatement) Execute 

func (ts *TiDBStatement) Execute(args ...interface{}) (rs ResultSet, err error)

Execute implements PreparedStatement Execute method.

func (*TiDBStatement) GetParamsType 

func (ts *TiDBStatement) GetParamsType() []byte

GetParamsType implements PreparedStatement GetParamsType method.

func (*TiDBStatement) ID 

func (ts *TiDBStatement) ID() int

ID implements PreparedStatement ID method.

func (*TiDBStatement) NumParams 

func (ts *TiDBStatement) NumParams() int

NumParams implements PreparedStatement NumParams method.

func (*TiDBStatement) Reset 

func (ts *TiDBStatement) Reset()

Reset implements PreparedStatement Reset method.

func (*TiDBStatement) SetParamsType 

func (ts *TiDBStatement) SetParamsType(paramsType []byte)

SetParamsType implements PreparedStatement SetParamsType method.

type Token 

type Token struct {
}

Token is used as a permission to keep on running.

type TokenLimiter 

type TokenLimiter struct {
	// contains filtered or unexported fields
}

TokenLimiter is used to limit the number of concurrent tasks.

func NewTokenLimiter 

func NewTokenLimiter(count int) *TokenLimiter

NewTokenLimiter creates a TokenLimiter with count tokens.

func (*TokenLimiter) Get 

func (tl *TokenLimiter) Get() *Token

Get obtains a token.

func (*TokenLimiter) Put 

func (tl *TokenLimiter) Put(tk *Token)

Put releases the token.

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