ringbuffer/example_test.go at master · Enan01/ringbuffer · GitHub

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package ringbuffer

import "fmt"

func ExampleRingBuffer() {
	rb := New(1024)
	_, _ = rb.Write([]byte("abcd"))
	fmt.Println(rb.Length())
	fmt.Println(rb.free())
	buf := make([]byte, 4)

	_, _ = rb.Read(buf)
	fmt.Println(string(buf))

	rb.Write([]byte("1234567890"))
	rb.VirtualRead(buf)
	fmt.Println(string(buf))
	fmt.Println(rb.Length())
	fmt.Println(rb.VirtualLength())
	rb.VirtualFlush()
	fmt.Println(rb.Length())
	fmt.Println(rb.VirtualLength())

	rb.VirtualRead(buf)
	fmt.Println(string(buf))
	fmt.Println(rb.Length())
	fmt.Println(rb.VirtualLength())
	rb.VirtualRevert()
	fmt.Println(rb.Length())
	fmt.Println(rb.VirtualLength())
	// Output: 4
	// 1020
	// abcd
	// 1234
	// 10
	// 6
	// 6
	// 6
	// 5678
	// 6
	// 2
	// 6
	// 6
}