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Copy pathos.go
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132 lines (124 loc) · 2.71 KB
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package gone
import (
"net"
"strconv"
"strings"
"github.com/shopspring/decimal"
)
// MacAddr 获取机器mac地址，返回mac字串数组.
func MacAddr() (upMac []string, err error) {
var interfaces []net.Interface
// 获取本机的MAC地址
interfaces, err = net.Interfaces()
if err != nil {
return nil, err
}
for _, inter := range interfaces {
mac := inter.HardwareAddr // 获取本机MAC地址
if len(mac.String()) > 0 && strings.Contains(inter.Flags.String(), "up") {
upMac = append(upMac, mac.String())
}
}
return upMac, nil
}
const (
Bytes = 1
KB = Bytes << 10 // 1 KB = 1024 Bytes
MB = Bytes << 20 // 1 MB = 1048576 Bytes
GB = Bytes << 30 // 1 GB = 1073741824 Bytes
TB = Bytes << 40 // 1 TB = 1099511627776 Bytes
PB = Bytes << 50 // 1 PB = 1125899906842624 Bytes
EB = Bytes << 60 // 1 EB = 1152921504606846976 Bytes
)
// FormatBytesStringOhMyGod 格式化存储大小，理论上应该使用该方式格式化存储大小，但是实际上不是这样的，呜呜呜呜呜呜.
func FormatBytesStringOhMyGod(b int64) string { //nolint
if b < KB {
return strconv.FormatInt(b, 10) + " bytes"
}
if b == KB {
return "1 KB"
}
if b < MB {
return formatBytesUnit(b, KB, " KB")
}
if b == MB {
return "1 MB"
}
if b < GB {
return formatBytesUnit(b, MB, " MB")
}
if b == GB {
return "1 GB"
}
if b < TB {
return formatBytesUnit(b, GB, " GB")
}
if b == TB {
return "1 TB"
}
if b < PB {
return formatBytesUnit(b, TB, " TB")
}
if b == PB {
return "1 PB"
}
if b < EB {
return formatBytesUnit(b, PB, " PB")
}
if b == EB {
return "1 EB"
}
return formatBytesUnit(b, EB, " EB")
}
const (
kb = 1000
mb = 1_000_000
gb = 1_000_000_000
tb = 1_000_000_000_000
pb = 1_000_000_000_000_000
eb = 1_000_000_000_000_000_000
)
// FormatBytesString 格式化bytes单位成可阅读单位形式,由于电脑制造商使用的是1000为单位计算磁盘大小
// 所以基本上使用该函数格式化存储大小.
func FormatBytesString(b int64) string { //nolint
if b < kb {
return strconv.FormatInt(b, 10) + " bytes"
}
if b == kb {
return "1 KB"
}
if b < mb {
return formatBytesUnit(b, kb, " KB")
}
if b == mb {
return "1 MB"
}
if b < gb {
return formatBytesUnit(b, mb, " MB")
}
if b == gb {
return "1 GB"
}
if b < tb {
return formatBytesUnit(b, gb, " GB")
}
if b == tb {
return "1 TB"
}
if b < pb {
return formatBytesUnit(b, tb, " TB")
}
if b == pb {
return "1 PB"
}
if b < eb {
return formatBytesUnit(b, pb, " PB")
}
if b == eb {
return "1 EB"
}
return formatBytesUnit(b, eb, " EB")
}
func formatBytesUnit(a, b int64, suffix string) string {
return decimal.NewFromInt(a).DivRound(decimal.NewFromInt(b), 2).Truncate(2).String() + suffix
}