pool

package
v7.4.0 Latest Latest
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 Go to latest Published: Jun 5, 2020 License: BSD-2-Clause Imports: 9 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var ErrClosed = errors.New("redis: client is closed")
View Source 
var ErrPoolTimeout = errors.New("redis: connection pool timeout")

Functions

This section is empty.

Types

type BadConnError 

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

func (BadConnError) Error 

func (e BadConnError) Error() string

func (BadConnError) Unwrap 

func (e BadConnError) Unwrap() error

type Conn 

type Conn struct {
	Inited bool
	// contains filtered or unexported fields
}

func NewConn 

func NewConn(netConn net.Conn) *Conn

func (*Conn) Close 

func (cn *Conn) Close() error

func (*Conn) RemoteAddr 

func (cn *Conn) RemoteAddr() net.Addr

func (*Conn) SetNetConn 

func (cn *Conn) SetNetConn(netConn net.Conn)

func (*Conn) SetUsedAt 

func (cn *Conn) SetUsedAt(tm time.Time)

func (*Conn) UsedAt 

func (cn *Conn) UsedAt() time.Time

func (*Conn) WithReader 

func (cn *Conn) WithReader(ctx context.Context, timeout time.Duration, fn func(rd *proto.Reader) error) error

func (*Conn) WithWriter 

func (cn *Conn) WithWriter(
	ctx context.Context, timeout time.Duration, fn func(wr *proto.Writer) error,
) error

func (*Conn) Write 

func (cn *Conn) Write(b []byte) (int, error)

type ConnPool 

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

func NewConnPool 

func NewConnPool(opt *Options) *ConnPool

func (*ConnPool) Close 

func (p *ConnPool) Close() error

func (*ConnPool) CloseConn 

func (p *ConnPool) CloseConn(cn *Conn) error

func (*ConnPool) Filter 

func (p *ConnPool) Filter(fn func(*Conn) bool) error

func (*ConnPool) Get 

func (p *ConnPool) Get(ctx context.Context) (*Conn, error)

Get returns existed connection from the pool or creates a new one.

func (*ConnPool) IdleLen 

func (p *ConnPool) IdleLen() int

IdleLen returns number of idle connections.

func (*ConnPool) Len 

func (p *ConnPool) Len() int

Len returns total number of connections.

func (*ConnPool) NewConn 

func (p *ConnPool) NewConn(ctx context.Context) (*Conn, error)

func (*ConnPool) Put 

func (p *ConnPool) Put(cn *Conn)

func (*ConnPool) ReapStaleConns 

func (p *ConnPool) ReapStaleConns() (int, error)

func (*ConnPool) Remove 

func (p *ConnPool) Remove(cn *Conn, reason error)

func (*ConnPool) Stats 

func (p *ConnPool) Stats() *Stats

type Options 

type Options struct {
	Dialer  func(context.Context) (net.Conn, error)
	OnClose func(*Conn) error

	PoolSize           int
	MinIdleConns       int
	MaxConnAge         time.Duration
	PoolTimeout        time.Duration
	IdleTimeout        time.Duration
	IdleCheckFrequency time.Duration
}

type Pooler 

type Pooler interface {
	NewConn(context.Context) (*Conn, error)
	CloseConn(*Conn) error

	Get(context.Context) (*Conn, error)
	Put(*Conn)
	Remove(*Conn, error)

	Len() int
	IdleLen() int
	Stats() *Stats

	Close() error
}

type SingleConnPool 

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

func NewSingleConnPool 

func NewSingleConnPool(pool Pooler) *SingleConnPool

func (*SingleConnPool) Close 

func (p *SingleConnPool) Close() error

func (*SingleConnPool) CloseConn 

func (p *SingleConnPool) CloseConn(cn *Conn) error

func (*SingleConnPool) Get 

func (p *SingleConnPool) Get(ctx context.Context) (*Conn, error)

func (*SingleConnPool) IdleLen 

func (p *SingleConnPool) IdleLen() int

func (*SingleConnPool) Len 

func (p *SingleConnPool) Len() int

func (*SingleConnPool) NewConn 

func (p *SingleConnPool) NewConn(ctx context.Context) (*Conn, error)

func (*SingleConnPool) Put 

func (p *SingleConnPool) Put(cn *Conn)

func (*SingleConnPool) Remove 

func (p *SingleConnPool) Remove(cn *Conn, reason error)

func (*SingleConnPool) Reset 

func (p *SingleConnPool) Reset() error

func (*SingleConnPool) SetConn 

func (p *SingleConnPool) SetConn(cn *Conn)

func (*SingleConnPool) Stats 

func (p *SingleConnPool) Stats() *Stats

type Stats 

type Stats struct {
	Hits     uint32 // number of times free connection was found in the pool
	Misses   uint32 // number of times free connection was NOT found in the pool
	Timeouts uint32 // number of times a wait timeout occurred

	TotalConns uint32 // number of total connections in the pool
	IdleConns  uint32 // number of idle connections in the pool
	StaleConns uint32 // number of stale connections removed from the pool
}

Stats contains pool state information and accumulated stats.

type StickyConnPool 

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

func NewStickyConnPool 

func NewStickyConnPool(pool *ConnPool, reusable bool) *StickyConnPool

func (*StickyConnPool) Close 

func (p *StickyConnPool) Close() error

func (*StickyConnPool) CloseConn 

func (p *StickyConnPool) CloseConn(*Conn) error

func (*StickyConnPool) Get 

func (p *StickyConnPool) Get(ctx context.Context) (*Conn, error)

func (*StickyConnPool) IdleLen 

func (p *StickyConnPool) IdleLen() int

func (*StickyConnPool) Len 

func (p *StickyConnPool) Len() int

func (*StickyConnPool) NewConn 

func (p *StickyConnPool) NewConn(context.Context) (*Conn, error)

func (*StickyConnPool) Put 

func (p *StickyConnPool) Put(cn *Conn)

func (*StickyConnPool) Remove 

func (p *StickyConnPool) Remove(cn *Conn, reason error)

func (*StickyConnPool) Stats 

func (p *StickyConnPool) Stats() *Stats

Source Files

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