gitee.com/liu-zhao234568/cntest@v1.0.0/common/size.go (about) 1 // Copyright 2014 The go-ethereum Authors 2 // This file is part of the go-ethereum library. 3 // 4 // The go-ethereum library is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Lesser General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // The go-ethereum library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU Lesser General Public License for more details. 13 // 14 // You should have received a copy of the GNU Lesser General Public License 15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 16 17 package common 18 19 import ( 20 "fmt" 21 ) 22 23 // StorageSize is a wrapper around a float value that supports user friendly 24 // formatting. 25 type StorageSize float64 26 27 // String implements the stringer interface. 28 func (s StorageSize) String() string { 29 if s > 1099511627776 { 30 return fmt.Sprintf("%.2f TiB", s/1099511627776) 31 } else if s > 1073741824 { 32 return fmt.Sprintf("%.2f GiB", s/1073741824) 33 } else if s > 1048576 { 34 return fmt.Sprintf("%.2f MiB", s/1048576) 35 } else if s > 1024 { 36 return fmt.Sprintf("%.2f KiB", s/1024) 37 } else { 38 return fmt.Sprintf("%.2f B", s) 39 } 40 } 41 42 // TerminalString implements log.TerminalStringer, formatting a string for console 43 // output during logging. 44 func (s StorageSize) TerminalString() string { 45 if s > 1099511627776 { 46 return fmt.Sprintf("%.2fTiB", s/1099511627776) 47 } else if s > 1073741824 { 48 return fmt.Sprintf("%.2fGiB", s/1073741824) 49 } else if s > 1048576 { 50 return fmt.Sprintf("%.2fMiB", s/1048576) 51 } else if s > 1024 { 52 return fmt.Sprintf("%.2fKiB", s/1024) 53 } else { 54 return fmt.Sprintf("%.2fB", s) 55 } 56 }