mirror of
https://github.com/nabbar/golib.git
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984ba51587
Package Errors: - add function to check & cast error interface into golib Error interface - update CodeError type to simplify management & error creation - add function to simplify call of Error function from a generic error interface - remove some useless function from Error interface All Other Packages: - apply change of package Errors into all other packages
129 lines
2.7 KiB
Go
129 lines
2.7 KiB
Go
/*
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* MIT License
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*
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* Copyright (c) 2020 Nicolas JUHEL
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*/
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package progress
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import (
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"io"
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"os"
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"path/filepath"
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"sync/atomic"
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)
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type progress struct {
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fos *os.File
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b *atomic.Int32
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fi *atomic.Value
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fe *atomic.Value
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fr *atomic.Value
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}
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func (o *progress) SetBufferSize(size int32) {
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o.b.Store(size)
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}
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func (o *progress) getBufferSize(size int) int {
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if size > 0 {
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return size
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} else if o == nil {
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return DefaultBuffSize
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}
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i := o.b.Load()
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if i < 1024 {
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return DefaultBuffSize
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} else {
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return int(i)
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}
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}
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func (o *progress) Path() string {
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return filepath.Clean(o.fos.Name())
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}
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func (o *progress) Stat() (os.FileInfo, error) {
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if o == nil || o.fos == nil {
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return nil, ErrorNilPointer.Error(nil)
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}
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if i, e := o.fos.Stat(); e != nil {
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return i, ErrorIOFileStat.Error(e)
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} else {
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return i, nil
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}
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}
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func (o *progress) SizeBOF() (size int64, err error) {
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if o == nil || o.fos == nil {
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return 0, ErrorNilPointer.Error(nil)
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}
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return o.Seek(0, io.SeekCurrent)
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}
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func (o *progress) SizeEOF() (size int64, err error) {
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if o == nil || o.fos == nil {
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return 0, ErrorNilPointer.Error(nil)
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}
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var (
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e error
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a int64 // origin
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b int64 // eof
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)
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if a, e = o.Seek(0, io.SeekCurrent); e != nil {
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return 0, e
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} else if b, e = o.Seek(0, io.SeekEnd); e != nil {
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return 0, e
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} else if _, e = o.Seek(a, io.SeekStart); e != nil {
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return 0, e
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} else {
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return b - a, nil
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}
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}
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func (o *progress) Truncate(size int64) error {
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if o == nil || o.fos == nil {
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return ErrorNilPointer.Error(nil)
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}
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e := o.fos.Truncate(size)
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o.reset()
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return e
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}
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func (o *progress) Sync() error {
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if o == nil || o.fos == nil {
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return ErrorNilPointer.Error(nil)
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}
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return o.fos.Sync()
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}
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