util

func Abs ¶

func Abs(n int) int

Abs - non branching Abs function for determine the absolute value of an int

func Abs64 ¶

func Abs64(n int64) int64

Abs64 - non branching Abs function for determine the absolute value of an int64

func GcWithStats ¶

func GcWithStats() string

GcWithStats performs a forced garbage collection measuring duration and pre- and post-memory statistics.

func Max ¶

func Max(x, y int) int

Max returns the bigger of the given integers

func Max64 ¶

func Max64(x, y int64) int64

Max64 returns the bigger of the given 64-bit integers

func MemStat ¶

func MemStat() string

MemStat returns a string with information about the applications memory usage and GC activity

func Min ¶

func Min(x, y int) int

Min returns the smaller of the given integers

func Min64 ¶

func Min64(x, y int64) int64

Min64 returns the smaller of the given 64-bit integers

func Nps ¶

func Nps(nodes uint64, duration time.Duration) uint64

Nps calculates nodes per second from an uint64 and a duration allows zero duration by adding one nanosecond

func ResolveCreateFolder ¶

func ResolveCreateFolder(folderPath string) (string, error)

ResolveCreateFolder is resolving a path to a folder and try to find the folder in a specific set of places. If no folder can be found it will try to create a folder from the last part of the given folder path in the working directory. If a folder can't be created in the working directory it will be created in the os's temp directory. The order will be check like this:

• if path is absolute it will test if the folder exists or try to create the folder there
• if path is not absolute we will try finding the folder relative to working directory. If not found we try to create the folder there
• last we create the folder in temp

func ResolveFile ¶

func ResolveFile(file string) (string, error)

ResolveFile is resolving a path to a file and try to find the file in a specific set of places and then will return an absolute path to it. Path needs to be a file or a not found error will be returned. The order will be check like this:

• if path is absolute it will return a os specific path and an error if the file does not exist
• if path is not absolute we will try first
• relative to working directory
• relative to executable
• relative to user home directory

func ResolveFolder ¶

func ResolveFolder(folder string) (string, error)

ResolveFolder is resolving a path to a folder and try to find the folder in a specific set of places and then will return an absolute path to it. Path needs to be a folder or a not found error will be returned. The folder will not be created. The order will be check like this:

• if path is absolute it will return a os specific path and an error if the file does not exist
• if path is not absolute we will try first
• relative to working directory
• relative to executable
• relative to user home directory

func TimeTrack ¶

func TimeTrack(start time.Time, name string)

TimeTrack is convenient way to measure timings of function. Usage: defer util.TimeTrack(time.Now(), "some text")