本文整理汇总了Golang中gx/ipfs/QmZy2y8t9zQH2a1b8q2ZSLKp17ATuJoCNxxyMFG5qFExpt/go-net/context.Context.Value方法的典型用法代码示例。如果您正苦于以下问题：Golang Context.Value方法的具体用法？Golang Context.Value怎么用？Golang Context.Value使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类gx/ipfs/QmZy2y8t9zQH2a1b8q2ZSLKp17ATuJoCNxxyMFG5qFExpt/go-net/context.Context的用法示例。
在下文中一共展示了Context.Value方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: LogError
// LogError logs the error to the owner of the context.
//
// If this context was created with ContextWithErrorLog, then this method
// passes the error to context creator over an unbuffered channel.
//
// If this context was created by other means, this method is a no-op.
func LogError(ctx context.Context, err error) {
v := ctx.Value(errLogKey)
errs, ok := v.(privateChanType)
if !ok {
return
}
errs <- err
}示例2: checkCtxTTL
// setting the TTL on published records is an experimental feature.
// as such, i'm using the context to wire it through to avoid changing too
// much code along the way.
func checkCtxTTL(ctx context.Context) (time.Duration, bool) {
v := ctx.Value("ipns-publish-ttl")
if v == nil {
return 0, false
}
d, ok := v.(time.Duration)
return d, ok
}示例3: MetadataFromContext
func MetadataFromContext(ctx context.Context) (Metadata, error) {
value := ctx.Value(metadataKey)
if value != nil {
metadata, ok := value.(Metadata)
if ok {
return metadata, nil
}
}
return nil, errors.New("context contains no metadata")
}示例4: PublishQueryEvent
func PublishQueryEvent(ctx context.Context, ev *QueryEvent) {
ich := ctx.Value(RoutingQueryKey)
if ich == nil {
return
}
ch, ok := ich.(chan<- *QueryEvent)
if !ok {
return
}
select {
case ch <- ev:
case <-ctx.Done():
}
}