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34 lines
1 KiB
Go
34 lines
1 KiB
Go
package queue
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type Queue interface {
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// Publish inserts work at the tail of this queue, waiting for
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// space to become available if the queue is full.
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Publish(*Work) error
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// Remove removes the specified work item from this queue,
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// if it is present.
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Remove(*Work) error
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// Pull retrieves and removes the head of this queue, waiting
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// if necessary until work becomes available.
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Pull() *Work
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// PullClose retrieves and removes the head of this queue,
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// waiting if necessary until work becomes available. The
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// CloseNotifier should be provided to clone the channel
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// if the subscribing client terminates its connection.
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PullClose(CloseNotifier) *Work
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// Ack acknowledges an item in the queue was processed.
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Ack(*Work) error
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// Items returns a slice containing all of the work in this
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// queue, in proper sequence.
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Items() []*Work
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}
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type CloseNotifier interface {
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// CloseNotify returns a channel that receives a single value
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// when the client connection has gone away.
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CloseNotify() <-chan bool
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}
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