65 lines
939 B
Go
65 lines
939 B
Go
package monitor
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import (
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"local/rssmon3/config"
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"time"
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)
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type Monitor struct {
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queue *Queue
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Incoming chan *Item
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Outgoing chan *Item
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config.Stoppable
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}
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func New() *Monitor {
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return &Monitor{
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queue: newQueue(),
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Incoming: make(chan *Item),
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Outgoing: make(chan *Item),
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}
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}
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func (m *Monitor) Run() error {
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for {
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select {
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case <-m.Stopped():
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return nil
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case i := <-m.enqueued():
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m.enqueue(i)
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continue
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case <-m.triggered():
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m.trigger()
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}
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}
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}
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func (m *Monitor) enqueued() chan *Item {
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return m.Incoming
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}
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func (m *Monitor) enqueue(i *Item) {
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m.queue.Push(i)
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}
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func (m *Monitor) triggered() <-chan time.Time {
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if m.queue.Len() < 1 {
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return nil
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}
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top := m.queue.Peek()
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if top == nil {
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return nil
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}
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return time.After(time.Until(top.Last().Add(top.Interval())))
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}
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func (m *Monitor) trigger() {
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i := m.queue.Pop()
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if i == nil {
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return
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}
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m.Outgoing <- i
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i.Mark()
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m.queue.Push(i)
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}
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