ioutils

Documentation

Index

• Constants
• func DelTempFile(f *os.File) error
• func GetTempFilePath(f *os.File) string
• func NewBufferReadCloser(b *bytes.Buffer) io.ReadCloser
• func NewTempFile() (*os.File, error)
• func PathCheckCreate(isFile bool, path string, permFile os.FileMode, permDir os.FileMode) error
• func SystemFileDescriptor(newValue int) (current int, max int, err liberr.Error)
• type IOWrapper
  • func NewIOWrapper(ioInput interface{}) *IOWrapper
  • func (w IOWrapper) Close() error
  • func (w IOWrapper) Read(p []byte) (n int, err error)
  • func (w IOWrapper) Seek(offset int64, whence int) (int64, error)
  • func (w *IOWrapper) SetWrapper(read func(p []byte) []byte, write func(p []byte) []byte)
  • func (w IOWrapper) Write(p []byte) (n int, err error)

Constants

const (
	ErrorParamEmpty liberr.CodeError = iota + liberr.MinPkgIOUtils
	ErrorSyscallRLimitGet
	ErrorSyscallRLimitSet
	ErrorIOFileStat
	ErrorIOFileSeek
	ErrorIOFileTruncate
	ErrorIOFileSync
	ErrorIOFileOpen
	ErrorIOFileTempNew
	ErrorIOFileTempClose
	ErrorIOFileTempRemove
	ErrorNilPointer
)

Functions

func DelTempFile

func DelTempFile(f *os.File) error

func GetTempFilePath

func GetTempFilePath(f *os.File) string

func NewBufferReadCloser

func NewBufferReadCloser(b *bytes.Buffer) io.ReadCloser

func NewTempFile

func NewTempFile() (*os.File, error)

func PathCheckCreate

func PathCheckCreate(isFile bool, path string, permFile os.FileMode, permDir os.FileMode) error

func SystemFileDescriptor

func SystemFileDescriptor(newValue int) (current int, max int, err liberr.Error)

SystemFileDescriptor is returning current Limit & max system limit for file descriptor (open file or I/O resource) currently set in the system This function return the current setting (current number of file descriptor and the max value) if the newValue given is zero Otherwise if the newValue is more than the current system limit, try to change the current limit in the system for this process only

 For Windows build, please follow this note :
	1) install package gcc-multilib gcc-mingw-w64 to build C source with GCC
		you will having this binaries
			- i686-w64-mingw32* for 32-bit Windows;
			- x86_64-w64-mingw32* for 64-bit Windows.
		locate you binaries gcc mingw path and note it:
			- win32 : updatedb && locate i686-w64-mingw32-gcc
			- win64 : updatedb && locate x86_64-w64-mingw32-gcc
	2) if you have an error in the build, or if the .o object file is not present in golib/njg-ioutils/maxstdio/, run this step
		- go to golib/njg-ioutils/maxstdio folder
		- gcc -x maxstdio.x
	3) for Win32 use this env var in prefix of your go build command (recommend to use -a flag) :
		CC=/usr/bin/i686-w64-mingw32-gcc CGO_ENABLED=1 GOOS=windows GOARCH=amd64 go build -a -v ...
	4) for win64 use this env var in prefix of your go build command (recommend to use -a flag) :
		CC=/usr/bin/x86_64-w64-mingw32-gcc CGO_ENABLED=1 GOOS=windows GOARCH=amd64 go build -a -v ...

	Normally no problem will be result in the build.

Types

type IOWrapper

type IOWrapper struct {
	// contains filtered or unexported fields
}

func NewIOWrapper

func NewIOWrapper(ioInput interface{}) *IOWrapper

func (IOWrapper) Close

func (w IOWrapper) Close() error

func (IOWrapper) Read

func (w IOWrapper) Read(p []byte) (n int, err error)

func (IOWrapper) Seek

func (w IOWrapper) Seek(offset int64, whence int) (int64, error)

func (*IOWrapper) SetWrapper

func (w *IOWrapper) SetWrapper(read func(p []byte) []byte, write func(p []byte) []byte)

func (IOWrapper) Write

func (w IOWrapper) Write(p []byte) (n int, err error)