mirror of https://github.com/poanetwork/quorum.git
27 lines
849 B
Go
27 lines
849 B
Go
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// Contains the external API side message filter for watching, pooling and polling
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// matched whisper messages.
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package xeth
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import "time"
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// whisperFilter is the message cache matching a specific filter, accumulating
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// inbound messages until the are requested by the client.
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type whisperFilter struct {
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id int // Filter identifier
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cache []WhisperMessage // Cache of messages not yet polled
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timeout time.Time // Time when the last message batch was queries
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}
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// insert injects a new batch of messages into the filter cache.
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func (w *whisperFilter) insert(msgs ...WhisperMessage) {
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w.cache = append(w.cache, msgs...)
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}
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// retrieve fetches all the cached messages from the filter.
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func (w *whisperFilter) retrieve() (messages []WhisperMessage) {
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messages, w.cache = w.cache, nil
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w.timeout = time.Now()
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return
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}
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