github.com/containerd/containerd@v22.0.0-20200918172823-438c87b8e050+incompatible/pkg/progress/humaans.go (about)

     1  /*
     2     Copyright The containerd Authors.
     3  
     4     Licensed under the Apache License, Version 2.0 (the "License");
     5     you may not use this file except in compliance with the License.
     6     You may obtain a copy of the License at
     7  
     8         http://www.apache.org/licenses/LICENSE-2.0
     9  
    10     Unless required by applicable law or agreed to in writing, software
    11     distributed under the License is distributed on an "AS IS" BASIS,
    12     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13     See the License for the specific language governing permissions and
    14     limitations under the License.
    15  */
    16  
    17  package progress
    18  
    19  import (
    20  	"fmt"
    21  	"time"
    22  
    23  	units "github.com/docker/go-units"
    24  )
    25  
    26  // Bytes converts a regular int64 to human readable type.
    27  type Bytes int64
    28  
    29  // String returns the string representation of bytes
    30  func (b Bytes) String() string {
    31  	return units.CustomSize("%02.1f %s", float64(b), 1024.0, []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"})
    32  }
    33  
    34  // BytesPerSecond is the rate in seconds for byte operations
    35  type BytesPerSecond int64
    36  
    37  // NewBytesPerSecond returns the rate that n bytes were written in the provided duration
    38  func NewBytesPerSecond(n int64, duration time.Duration) BytesPerSecond {
    39  	return BytesPerSecond(float64(n) / duration.Seconds())
    40  }
    41  
    42  // String returns the string representation of the rate
    43  func (bps BytesPerSecond) String() string {
    44  	return fmt.Sprintf("%v/s", Bytes(bps))
    45  }