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642ab409c1
This maintains `direction` and `value` `File`s for each DigitalPin implementation. Instead of Open/Read/Close we now only do Seek/Read, this speeds up Read/Write operations a bit. A silly benchmark on the mock FS gives: benchmark old ns/op new ns/op delta BenchmarkDigitalRead-8 647 7.36 -98.86% benchmark old allocs new allocs delta BenchmarkDigitalRead-8 5 0 -100.00% benchmark old bytes new bytes delta BenchmarkDigitalRead-8 96 0 -100.00%
22 lines
352 B
Go
22 lines
352 B
Go
package sysfs
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import "testing"
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func BenchmarkDigitalRead(b *testing.B) {
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fs := NewMockFilesystem([]string{
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"/sys/class/gpio/export",
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"/sys/class/gpio/unexport",
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"/sys/class/gpio/gpio10/value",
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"/sys/class/gpio/gpio10/direction",
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})
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SetFilesystem(fs)
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pin := NewDigitalPin(10)
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pin.Write(1)
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for i := 0; i < b.N; i++ {
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pin.Read()
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}
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}
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