forked from mirror/redis
114 lines
2.9 KiB
Go
114 lines
2.9 KiB
Go
package redis
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import (
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"net"
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"time"
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"gopkg.in/redis.v5/internal/pool"
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)
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type Options struct {
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// The network type, either tcp or unix.
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// Default is tcp.
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Network string
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// host:port address.
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Addr string
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// Dialer creates new network connection and has priority over
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// Network and Addr options.
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Dialer func() (net.Conn, error)
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// Optional password. Must match the password specified in the
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// requirepass server configuration option.
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Password string
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// Database to be selected after connecting to the server.
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DB int
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// Maximum number of retries before giving up.
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// Default is to not retry failed commands.
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MaxRetries int
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// Dial timeout for establishing new connections.
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// Default is 5 seconds.
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DialTimeout time.Duration
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// Timeout for socket reads. If reached, commands will fail
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// with a timeout instead of blocking.
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// Default is 3 seconds.
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ReadTimeout time.Duration
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// Timeout for socket writes. If reached, commands will fail
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// with a timeout instead of blocking.
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// Default is 3 seconds.
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WriteTimeout time.Duration
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// Maximum number of socket connections.
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// Default is 10 connections.
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PoolSize int
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// Amount of time client waits for connection if all connections
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// are busy before returning an error.
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// Default is ReadTimeout + 1 second.
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PoolTimeout time.Duration
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// Amount of time after which client closes idle connections.
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// Should be less than server's timeout.
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// Default is to not close idle connections.
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IdleTimeout time.Duration
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// Frequency of idle checks.
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// Default is 1 minute.
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// When minus value is set, then idle check is disabled.
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IdleCheckFrequency time.Duration
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// Enables read only queries on slave nodes.
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ReadOnly bool
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}
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func (opt *Options) init() {
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if opt.Network == "" {
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opt.Network = "tcp"
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}
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if opt.Dialer == nil {
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opt.Dialer = func() (net.Conn, error) {
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return net.DialTimeout(opt.Network, opt.Addr, opt.DialTimeout)
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}
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}
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if opt.PoolSize == 0 {
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opt.PoolSize = 10
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}
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if opt.DialTimeout == 0 {
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opt.DialTimeout = 5 * time.Second
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}
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if opt.ReadTimeout == 0 {
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opt.ReadTimeout = 3 * time.Second
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}
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if opt.WriteTimeout == 0 {
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opt.WriteTimeout = opt.ReadTimeout
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}
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if opt.PoolTimeout == 0 {
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opt.PoolTimeout = opt.ReadTimeout + time.Second
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}
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if opt.IdleTimeout == 0 {
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opt.IdleTimeout = 5 * time.Minute
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}
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if opt.IdleCheckFrequency == 0 {
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opt.IdleCheckFrequency = time.Minute
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}
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}
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func newConnPool(opt *Options) *pool.ConnPool {
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return pool.NewConnPool(
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opt.Dialer,
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opt.PoolSize,
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opt.PoolTimeout,
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opt.IdleTimeout,
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opt.IdleCheckFrequency,
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)
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}
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// PoolStats contains pool state information and accumulated stats.
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type PoolStats struct {
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Requests uint32 // number of times a connection was requested by the pool
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Hits uint32 // number of times free connection was found in the pool
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Timeouts uint32 // number of times a wait timeout occurred
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TotalConns uint32 // the number of total connections in the pool
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FreeConns uint32 // the number of free connections in the pool
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}
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