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Index ¶
Constants ¶
This section is empty.
Variables ¶
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var DontWait context.Context
DontWait is an expired context for use in Value.Get. Using DontWait will cause a Value.Get call to return immediately. If the value has not been set, a context.Canceled error will be returned.
Functions ¶
This section is empty.
Types ¶
type Value ¶
type Value interface {
// Set this Value.
Set(interface{})
// Reset clears the currently set value, reverting to the same state as if the Eventual had just
// been created.
Reset()
// Get waits for the value to be set. If the context expires first, an error will be returned.
//
// This function will return immediately when called with an expired context. In this case, the
// value will be returned only if it has already been set; otherwise the context error will be
// returned. For convenience, see DontWait.
Get(context.Context) (interface{}, error)
}
Value is an eventual value, meaning that callers wishing to access the value block until it is available.
func WithDefault ¶
func WithDefault(defaultValue interface{}) Value
WithDefault creates a new value that returns the given defaultValue if a real value isn't available in time.
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