github.com/annchain/OG@v0.0.9/common/iosize.go (about)

     1  // Copyright © 2019 Annchain Authors <EMAIL ADDRESS>
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package common
    15  
    16  import (
    17  	"fmt"
    18  )
    19  
    20  // StorageSize is a wrapper around a float value that supports user friendly
    21  // formatting.
    22  type IOSize float64
    23  
    24  // String implements the stringer interface.
    25  func (s IOSize) String() string {
    26  	if s > 1048576 {
    27  		return fmt.Sprintf("%.2f mB", s/1000000)
    28  	} else if s > 1024 {
    29  		return fmt.Sprintf("%.2f kB", s/1024)
    30  	} else {
    31  		return fmt.Sprintf("%.2f B", s)
    32  	}
    33  }
    34  
    35  // TerminalString implements log.TerminalStringer, formatting a string for console
    36  // output during logging.
    37  func (s IOSize) TerminalString() string {
    38  	if s > 1048576 {
    39  		return fmt.Sprintf("%.2fmB", s/1000000)
    40  	} else if s > 1024 {
    41  		return fmt.Sprintf("%.2fkB", s/1000)
    42  	} else {
    43  		return fmt.Sprintf("%.2fB", s)
    44  	}
    45  }