forked from mirror/redis
74 lines
1.1 KiB
Go
74 lines
1.1 KiB
Go
package errors
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import (
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"io"
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"net"
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"strings"
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)
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const Nil = RedisError("redis: nil")
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type RedisError string
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var LoadingError RedisError = "LOADING Redis is loading the dataset in memory"
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func (e RedisError) Error() string { return string(e) }
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func IsRetryable(err error) bool {
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return IsNetwork(err)
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}
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func IsInternal(err error) bool {
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_, ok := err.(RedisError)
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return ok
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}
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func IsNetwork(err error) bool {
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if err == io.EOF {
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return true
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}
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_, ok := err.(net.Error)
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return ok
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}
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func IsBadConn(err error, allowTimeout bool) bool {
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if err == nil {
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return false
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}
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if IsInternal(err) {
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return false
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}
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if allowTimeout {
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if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
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return false
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}
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}
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return true
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}
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func IsMoved(err error) (moved bool, ask bool, addr string) {
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if !IsInternal(err) {
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return
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}
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s := err.Error()
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if strings.HasPrefix(s, "MOVED ") {
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moved = true
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} else if strings.HasPrefix(s, "ASK ") {
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ask = true
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} else {
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return
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}
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ind := strings.LastIndex(s, " ")
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if ind == -1 {
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return false, false, ""
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}
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addr = s[ind+1:]
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return
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}
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func IsLoading(err error) bool {
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return err.Error() == string(LoadingError)
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}
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