Documentation
¶
Overview ¶
Package errorcontext implements a Context that can be canceled with a specific error instead of the usual context.Canceled.
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type CancelFunc ¶
type CancelFunc func(error)
CancelFunc extends the regular context.CancelFunc with an error argument
type ErrorContext ¶
ErrorContext can be used to attach errors to a context cancelation.
Example ¶
package main
import (
"go.thethings.network/lorawan-stack/v3/pkg/errorcontext"
"go.thethings.network/lorawan-stack/v3/pkg/util/test"
)
var err error
func main() {
ctx, cancel := errorcontext.New(test.Context())
defer cancel(nil)
go func() {
for {
// do work
if err != nil {
cancel(err)
}
}
}()
for {
select {
// case data := <-dataChan:
case <-ctx.Done():
return
}
}
}
func (*ErrorContext) Cancel ¶
func (c *ErrorContext) Cancel(err error)
Cancel the ErrorContext with an error. The context can not be re-used or re-canceled after this function is called.
func (*ErrorContext) Err ¶
func (c *ErrorContext) Err() error
Err returns the err of the ErrorContext if non-nil, or the error of the underlying Context.
Source Files
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