ebpf_exporter

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package decoder
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import (
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	"fmt"
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	"strconv"
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	"github.com/cloudflare/ebpf_exporter/v2/config"
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)
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// PCIDevice is a decoder that transforms PCI device id into a name
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type PCIDevice struct{}
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// Decode transforms PCI device id into a name
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func (d *PCIDevice) Decode(in []byte, _ config.Decoder) ([]byte, error) {
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	if pci == nil {
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		return []byte(missingPciIdsText), nil
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	}
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	num, err := strconv.Atoi(string(in))
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	if err != nil {
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		return nil, err
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	}
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	key := fmt.Sprintf("%04x", num)
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	if device, ok := pci.Products[key]; ok {
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		return []byte(device.Name), nil
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	}
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	return []byte(fmt.Sprintf("unknown pci device: 0x%s", key)), nil
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}
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