diff options
Diffstat (limited to 'vendor/google.golang.org/grpc/internal/serviceconfig/duration.go')
-rw-r--r-- | vendor/google.golang.org/grpc/internal/serviceconfig/duration.go | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/vendor/google.golang.org/grpc/internal/serviceconfig/duration.go b/vendor/google.golang.org/grpc/internal/serviceconfig/duration.go deleted file mode 100644 index 11d82afcc..000000000 --- a/vendor/google.golang.org/grpc/internal/serviceconfig/duration.go +++ /dev/null @@ -1,130 +0,0 @@ -/* - * - * Copyright 2023 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -package serviceconfig - -import ( - "encoding/json" - "fmt" - "math" - "strconv" - "strings" - "time" -) - -// Duration defines JSON marshal and unmarshal methods to conform to the -// protobuf JSON spec defined [here]. -// -// [here]: https://protobuf.dev/reference/protobuf/google.protobuf/#duration -type Duration time.Duration - -func (d Duration) String() string { - return fmt.Sprint(time.Duration(d)) -} - -// MarshalJSON converts from d to a JSON string output. -func (d Duration) MarshalJSON() ([]byte, error) { - ns := time.Duration(d).Nanoseconds() - sec := ns / int64(time.Second) - ns = ns % int64(time.Second) - - var sign string - if sec < 0 || ns < 0 { - sign, sec, ns = "-", -1*sec, -1*ns - } - - // Generated output always contains 0, 3, 6, or 9 fractional digits, - // depending on required precision. - str := fmt.Sprintf("%s%d.%09d", sign, sec, ns) - str = strings.TrimSuffix(str, "000") - str = strings.TrimSuffix(str, "000") - str = strings.TrimSuffix(str, ".000") - return []byte(fmt.Sprintf("\"%ss\"", str)), nil -} - -// UnmarshalJSON unmarshals b as a duration JSON string into d. -func (d *Duration) UnmarshalJSON(b []byte) error { - var s string - if err := json.Unmarshal(b, &s); err != nil { - return err - } - if !strings.HasSuffix(s, "s") { - return fmt.Errorf("malformed duration %q: missing seconds unit", s) - } - neg := false - if s[0] == '-' { - neg = true - s = s[1:] - } - ss := strings.SplitN(s[:len(s)-1], ".", 3) - if len(ss) > 2 { - return fmt.Errorf("malformed duration %q: too many decimals", s) - } - // hasDigits is set if either the whole or fractional part of the number is - // present, since both are optional but one is required. - hasDigits := false - var sec, ns int64 - if len(ss[0]) > 0 { - var err error - if sec, err = strconv.ParseInt(ss[0], 10, 64); err != nil { - return fmt.Errorf("malformed duration %q: %v", s, err) - } - // Maximum seconds value per the durationpb spec. - const maxProtoSeconds = 315_576_000_000 - if sec > maxProtoSeconds { - return fmt.Errorf("out of range: %q", s) - } - hasDigits = true - } - if len(ss) == 2 && len(ss[1]) > 0 { - if len(ss[1]) > 9 { - return fmt.Errorf("malformed duration %q: too many digits after decimal", s) - } - var err error - if ns, err = strconv.ParseInt(ss[1], 10, 64); err != nil { - return fmt.Errorf("malformed duration %q: %v", s, err) - } - for i := 9; i > len(ss[1]); i-- { - ns *= 10 - } - hasDigits = true - } - if !hasDigits { - return fmt.Errorf("malformed duration %q: contains no numbers", s) - } - - if neg { - sec *= -1 - ns *= -1 - } - - // Maximum/minimum seconds/nanoseconds representable by Go's time.Duration. - const maxSeconds = math.MaxInt64 / int64(time.Second) - const maxNanosAtMaxSeconds = math.MaxInt64 % int64(time.Second) - const minSeconds = math.MinInt64 / int64(time.Second) - const minNanosAtMinSeconds = math.MinInt64 % int64(time.Second) - - if sec > maxSeconds || (sec == maxSeconds && ns >= maxNanosAtMaxSeconds) { - *d = Duration(math.MaxInt64) - } else if sec < minSeconds || (sec == minSeconds && ns <= minNanosAtMinSeconds) { - *d = Duration(math.MinInt64) - } else { - *d = Duration(sec*int64(time.Second) + ns) - } - return nil -} |