utils

func BytesToInt64 ¶

func BytesToInt64(buf []byte) int64

func CopyFile ¶

func CopyFile(dst, src string) error

func DirDirs ¶

func DirDirs(path string, count uint32) ([]string, error)

Get the total size of all files in a directory and subdirectories

func DirFiles ¶

func DirFiles(path string, count uint32) ([]string, error)

Get the total size of all files in a directory and subdirectories

func FildIpv4 ¶

func FildIpv4(data []byte) (string, bool)

func FindFile ¶

func FindFile(dir, name string) string

func GetDirFreeSpace ¶

func GetDirFreeSpace(dir string) (uint64, error)

func GetDirUsedSpace ¶ added in v0.4.2

func GetDirUsedSpace(dir string) (uint64, error)

func GetFileType ¶

func GetFileType(fSrc string) (string, error)

func GetPublicIP ¶

func GetPublicIP() (string, error)

func GetSysMemAvailable ¶

func GetSysMemAvailable() (uint64, error)

func Int64ToBytes ¶

func Int64ToBytes(i int64) []byte

func InterfaceIsNIL ¶

func InterfaceIsNIL(i interface{}) bool

InterfaceIsNIL returns the comparison between i and nil

func IsIntranetIpv4 ¶

func IsIntranetIpv4(ipv4 string) (bool, error)

func PasswdWithMask ¶

func PasswdWithMask(hint string, defaultVal string, mask string) (string, error)

func RandSlice ¶

func RandSlice(slice interface{})

func RecoverError ¶

func RecoverError(err interface{}) string

RecoverError is used to record the stack information of panic

func RemoveRepeatedAddr ¶

func RemoveRepeatedAddr(arr []multiaddr.Multiaddr) (newArr []multiaddr.Multiaddr)

func RenameDir ¶

func RenameDir(oldDir, newDir string) error

func StringBuilder ¶

func StringBuilder(cap int, p ...string) string

func Ternary ¶

func Ternary(a, b int64) int64

func VerifyPolkadotjsHexSign ¶

func VerifyPolkadotjsHexSign(account, msg, signature string) ([]byte, bool, error)

VerifyPolkadotjsHexSign verify signature signed with polkadot.js

• account: polkadot account
• msg: message
• sign: signature

Return:

• []byte: public key of account
• bool: verification result
• error: error message

Tip:

• https://polkadot.js.org/apps/#/signing

func VerifySR25519WithPubkey ¶

func VerifySR25519WithPubkey(account, msg, signature string) ([]byte, bool, error)

VerifySR25519WithPubkey verify sr25519 signature with account public key

• account: polkadot account
• msg: message
• signature: sr25519 signature

Return:

• []byte: public key of account
• bool: verification result
• error: error message