github.com/aigarnetwork/aigar@v0.0.0-20191115204914-d59a6eb70f8e/common/size.go (about)

     1  //  Copyright 2018 The go-ethereum Authors
     2  //  Copyright 2019 The go-aigar Authors
     3  //  This file is part of the go-aigar library.
     4  //
     5  //  The go-aigar library is free software: you can redistribute it and/or modify
     6  //  it under the terms of the GNU Lesser General Public License as published by
     7  //  the Free Software Foundation, either version 3 of the License, or
     8  //  (at your option) any later version.
     9  //
    10  //  The go-aigar library is distributed in the hope that it will be useful,
    11  //  but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  //  GNU Lesser General Public License for more details.
    14  //
    15  //  You should have received a copy of the GNU Lesser General Public License
    16  //  along with the go-aigar library. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package common
    19  
    20  import (
    21  	"fmt"
    22  )
    23  
    24  // StorageSize is a wrapper around a float value that supports user friendly
    25  // formatting.
    26  type StorageSize float64
    27  
    28  // String implements the stringer interface.
    29  func (s StorageSize) String() string {
    30  	if s > 1099511627776 {
    31  		return fmt.Sprintf("%.2f TiB", s/1099511627776)
    32  	} else if s > 1073741824 {
    33  		return fmt.Sprintf("%.2f GiB", s/1073741824)
    34  	} else if s > 1048576 {
    35  		return fmt.Sprintf("%.2f MiB", s/1048576)
    36  	} else if s > 1024 {
    37  		return fmt.Sprintf("%.2f KiB", s/1024)
    38  	} else {
    39  		return fmt.Sprintf("%.2f B", s)
    40  	}
    41  }
    42  
    43  // TerminalString implements log.TerminalStringer, formatting a string for console
    44  // output during logging.
    45  func (s StorageSize) TerminalString() string {
    46  	if s > 1099511627776 {
    47  		return fmt.Sprintf("%.2fTiB", s/1099511627776)
    48  	} else if s > 1073741824 {
    49  		return fmt.Sprintf("%.2fGiB", s/1073741824)
    50  	} else if s > 1048576 {
    51  		return fmt.Sprintf("%.2fMiB", s/1048576)
    52  	} else if s > 1024 {
    53  		return fmt.Sprintf("%.2fKiB", s/1024)
    54  	} else {
    55  		return fmt.Sprintf("%.2fB", s)
    56  	}
    57  }