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https://github.com/status-im/status-console-client.git
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220bf05e8d
It allows not to block producer when there are not consumers. And it allows to have more then one consumer in different parts of the application.
59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
package client
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import (
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"github.com/status-im/status-console-client/protocol/v1"
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)
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type EventType int
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//go:generate stringer -type=EventType
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// A list of available events sent from the client.
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const (
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EventTypeInit EventType = iota + 1
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EventTypeRearrange // messages were rearranged
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EventTypeMessage // a new message was appended
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EventTypeError
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)
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// Event is used to workaround event.Feed type checking.
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// Every event.Feed instance will remember first type that was used either in Send or Subscribe.
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// After that value of every object will be matched against that type.
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// For example if we subscribed first with interface{} - feed.etype will be changed to interface{}
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// and then when client.messageFeed is posted to event.Feed it will get value and match it against interface{}.
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// Feed type checking is either not accurate or it was designed to prevent subscribing with various interfaces.
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type Event struct {
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Interface interface{}
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}
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type EventWithContact interface {
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GetContact() Contact
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}
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type EventWithType interface {
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GetType() EventType
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}
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type EventWithError interface {
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GetError() error
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}
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type EventWithMessage interface {
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GetMessage() *protocol.Message
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}
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type baseEvent struct {
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Contact Contact `json:"contact"`
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Type EventType `json:"type"`
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}
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func (e baseEvent) GetContact() Contact { return e.Contact }
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func (e baseEvent) GetType() EventType { return e.Type }
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type messageEvent struct {
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baseEvent
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Message *protocol.Message `json:"message"`
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}
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func (e messageEvent) GetMessage() *protocol.Message { return e.Message }
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