forked from TrueCloudLab/restic
61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
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// Copyright 2018, Google
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package window_test
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import (
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"fmt"
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"time"
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"github.com/kurin/blazer/x/window"
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)
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type Counter struct {
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w *window.Window
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}
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func (c Counter) Add() {
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c.w.Insert(1)
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}
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func (c Counter) Count() int {
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v := c.w.Reduce()
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return v.(int)
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}
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func New(size time.Duration) Counter {
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r := func(i, j interface{}) interface{} {
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a, ok := i.(int)
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if !ok {
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a = 0
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}
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b, ok := j.(int)
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if !ok {
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b = 0
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}
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return a + b
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}
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return Counter{w: window.New(size, time.Second, r)}
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}
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func Example_counter() {
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c := New(time.Minute)
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c.Add()
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c.Add()
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c.Add()
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fmt.Printf("total: %d\n", c.Count())
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// Output:
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// total: 3
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}
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