本文整理匯總了Golang中github.com/balzaczyy/golucene/core/store.IndexOutput.SetLength方法的典型用法代碼示例。如果您正苦於以下問題：Golang IndexOutput.SetLength方法的具體用法？Golang IndexOutput.SetLength怎麽用？Golang IndexOutput.SetLength使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/balzaczyy/golucene/core/store.IndexOutput的用法示例。
在下文中一共展示了IndexOutput.SetLength方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: _crash
func (w *MockDirectoryWrapper) _crash() error {
w.crashed = true
w.openFiles = make(map[string]int)
w.openFilesForWrite = make(map[string]bool)
w.openFilesDeleted = make(map[string]bool)
files := w.unSyncedFiles
w.unSyncedFiles = make(map[string]bool)
// first force-close all files, so we can corrupt on windows etc.
// clone the file map, as these guys want to remove themselves on close.
m := make(map[io.Closer]error)
for k, v := range w.openFileHandles {
m[k] = v
}
for f, _ := range m {
f.Close() // ignore error
}
for name, _ := range files {
var action string
var err error
switch w.randomState.Intn(5) {
case 0:
action = "deleted"
err = w.deleteFile(name, true)
case 1:
action = "zeroes"
// Zero out file entirely
var length int64
length, err = w.FileLength(name)
if err == nil {
zeroes := make([]byte, 256)
var upto int64 = 0
var out store.IndexOutput
out, err = w.BaseDirectoryWrapperImpl.CreateOutput(name, NewDefaultIOContext(w.randomState))
if err == nil {
for upto < length && err == nil {
limit := length - upto
if int64(len(zeroes)) < limit {
limit = int64(len(zeroes))
}
err = out.WriteBytes(zeroes[:limit])
upto += limit
}
if err == nil {
err = out.Close()
}
}
}
case 2:
action = "partially truncated"
// Partially Truncate the file:
// First, make temp file and copy only half this file over:
var tempFilename string
for {
tempFilename = fmt.Sprintf("%v", w.randomState.Int())
if !w.BaseDirectoryWrapperImpl.FileExists(tempFilename) {
break
}
}
var tempOut store.IndexOutput
if tempOut, err = w.BaseDirectoryWrapperImpl.CreateOutput(tempFilename, NewDefaultIOContext(w.randomState)); err == nil {
var ii store.IndexInput
if ii, err = w.BaseDirectoryWrapperImpl.OpenInput(name, NewDefaultIOContext(w.randomState)); err == nil {
if err = tempOut.CopyBytes(ii, ii.Length()/2); err == nil {
if err = tempOut.Close(); err == nil {
if err = ii.Close(); err == nil {
// Delete original and copy bytes back:
if err = w.deleteFile(name, true); err == nil {
var out store.IndexOutput
if out, err = w.BaseDirectoryWrapperImpl.CreateOutput(name, NewDefaultIOContext(w.randomState)); err == nil {
if ii, err = w.BaseDirectoryWrapperImpl.OpenInput(tempFilename, NewDefaultIOContext(w.randomState)); err == nil {
if err = out.CopyBytes(ii, ii.Length()); err == nil {
if err = out.Close(); err == nil {
if err = ii.Close(); err == nil {
err = w.deleteFile(tempFilename, true)
}
}
}
}
}
}
}
}
}
}
}
case 3:
// the file survived intact:
action = "didn't change"
default:
action = "fully truncated"
// totally truncate the file to zero bytes
if err = w.deleteFile(name, true); err == nil {
var out store.IndexOutput
if out, err = w.BaseDirectoryWrapperImpl.CreateOutput(name, NewDefaultIOContext(w.randomState)); err == nil {
if err = out.SetLength(0); err == nil {
err = out.Close()
}
}
//.........這裏部分代碼省略.........