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additional output formats

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This commit is contained in:
William Dillon 2026-02-09 19:36:33 -05:00
parent 89eab3da05
commit 766e407cc3
1 changed files with 34 additions and 14 deletions
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38
cli/main.go
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@ -8,18 +8,38 @@ import (
"math" "math"
"os" "os"
"strconv" "strconv"
"strings"
"time" "time"
) )
func FormatOutput(pause time.Duration, ns bool) string { func FormatOutput(pause time.Duration, format string) string {
switch ns { var results string
case true: switch strings.ToLower(format) {
return strconv.FormatInt(pause.Nanoseconds(), 10) case "string":
results = pause.String()
case "s":
results = fmt.Sprintf("%f", pause.Seconds())
case "ms":
results = strconv.FormatInt(pause.Milliseconds(), 10)
case "us", "µs":
results = strconv.FormatInt(pause.Microseconds(), 10)
case "ns":
results = strconv.FormatInt(pause.Nanoseconds(), 10)
default: default:
return pause.String() fmt.Fprintf(os.Stderr, "warning: unknown format %q - using 'string'\n", format)
results = pause.String()
} }
return results
} }
type OutputFormat string
const (
SECONDS OutputFormat = "s"
MILLISECONDS OutputFormat = "ms"
MICROSECONDS OutputFormat = "us"
)
func main() { func main() {
start := time.Now() start := time.Now()
var ( var (
@ -28,14 +48,14 @@ func main() {
multiplier time.Duration multiplier time.Duration
jitter time.Duration jitter time.Duration
iteration int64 iteration int64
nanosecondsOutput bool outputformat string
) )
flag.BoolVar(&doPanic, "panic", false, "panic instead of overflowing values (default returns the max value instead of overflowing).") flag.BoolVar(&doPanic, "panic", false, "panic instead of overflowing values (default returns the max value instead of overflowing).")
flag.BoolVar(&doSleep, "sleep", false, "sleep for the resulting duration after calculating it. prints the run duration of the program instead of the calculated pause duration.") flag.BoolVar(&doSleep, "sleep", false, "sleep for the resulting duration after calculating it. prints the run duration of the program instead of the calculated pause duration.")
flag.DurationVar(&multiplier, "multiplier", time.Millisecond, "pause multiplier.") flag.DurationVar(&multiplier, "multiplier", time.Millisecond, "pause multiplier.")
flag.DurationVar(&jitter, "jitter", 0, "jitter boundary. pause duration is randomly selected in the range of resultDuration+-jitter.") flag.DurationVar(&jitter, "jitter", 0, "jitter boundary. pause duration is randomly selected in the range of resultDuration+-jitter.")
flag.Int64Var(&iteration, "iteration", 1, "iteration to use for calculating pause time.") flag.Int64Var(&iteration, "iteration", 1, "iteration to use for calculating pause time.")
flag.BoolVar(&nanosecondsOutput, "ns", false, "outputs int64 nanoseconds instead of string.") flag.StringVar(&outputformat, "format", "string", "output format - s, ms, us, µs, ns, string")
flag.Parse() flag.Parse()
if jitter < 0 { if jitter < 0 {
@ -62,9 +82,9 @@ func main() {
switch doSleep { switch doSleep {
case true: case true:
<-backoff.After(context.Background()) <-backoff.After(context.Background())
response = FormatOutput(time.Since(start), nanosecondsOutput) response = FormatOutput(time.Since(start), outputformat)
default: default:
response = FormatOutput(backoff.Next(), nanosecondsOutput) response = FormatOutput(backoff.Next(), outputformat)
} }
fmt.Println(response) fmt.Println(response)