Arp::System::Commons::Io Namespace Reference

Namespace for classes related to the filesystem and file I/O More...

Classes
class	AccessDeniedException
	This exception is used when a requested file does not exist. More...
class	AlreadyExistsException
	This exception is used when a file should be created that already exists. More...
class	Directory
	API for manipulation and examiniation of directories of a file system. More...
class	EndOfStreamException
	This is the base class of all IO exceptions. More...
class	File
	API to manage and manipulate single files. More...
class	FileStream
	Exposes a Stream around a file, supporting read and write operations. More...
class	FileSystemInfo
class	InvalidPathException
	This exception is used when a requested file does not exist. More...
class	IoException
	This is the base class of all IO exceptions. More...
class	MemoryStream
class	NotExistException
	This exception is used when a requested directory does not exist. More...
class	NullStream
class	OutOfSpaceException
	This exception is used when a requested file does not exist. More...
class	Path
class	Stream
	Provides a generic view of a sequence of bytes. More...

Enumerations
enum class	FileAccess { None = 0 , Read = 1 , Write = 2 , ReadWrite = 3 }
	Contains constants for specifying the access you want for a file. You can have Read, Write or ReadWrite access. More...
enum class	FileMode {   None = 0 , CreateNew = 1 , Create = 2 , Open = 3 ,   OpenOrCreate = 4 , Truncate = 5 , Append = 6 }
	Contains constants for specifying how the OS should open a file. More...
enum class	SeekOrigin { None = 0 , Begin = 1 , Current = 2 , End = 3 }
	Provides seek reference points. To seek to the end of a stream, call stream.Seek(0, SeekOrigin.End). More...

Functions
void	MapBoostErrorCodeToException (const String &path, const boost::system::error_code &boostErrorCode)
void	MapBoostErrorCodeToException (const String &sourcePath, const String &destinationPath, const boost::system::error_code &boostErrorCode)
ARP_CXX_SYMBOL_EXPORT std::ostream &	operator<< (std::ostream &os, FileAccess value)
ARP_CXX_SYMBOL_EXPORT std::istream &	operator>> (std::istream &is, FileAccess &value)
ARP_CXX_SYMBOL_EXPORT std::ostream &	operator<< (std::ostream &os, FileMode value)
ARP_CXX_SYMBOL_EXPORT std::istream &	operator>> (std::istream &is, FileMode &value)
constexpr FileSystemInfo::Traits	operator& (FileSystemInfo::Traits lhs, FileSystemInfo::Traits rhs)
constexpr FileSystemInfo::Traits	operator| (FileSystemInfo::Traits lhs, FileSystemInfo::Traits rhs)
constexpr FileSystemInfo::Permissions	operator& (FileSystemInfo::Permissions lhs, FileSystemInfo::Permissions rhs)
constexpr FileSystemInfo::Permissions	operator| (FileSystemInfo::Permissions lhs, FileSystemInfo::Permissions rhs)
ARP_CXX_SYMBOL_EXPORT std::ostream &	operator<< (std::ostream &os, SeekOrigin value)
ARP_CXX_SYMBOL_EXPORT std::istream &	operator>> (std::istream &is, SeekOrigin &value)

Detailed Description

Namespace for classes related to the filesystem and file I/O

Enumeration Type Documentation

FileAccess

enum class Arp::System::Commons::Io::FileAccess

strong

Contains constants for specifying the access you want for a file. You can have Read, Write or ReadWrite access.

Enumerator
None	Not specified
Read	Specifies read access to the file. Data can be read from the file and the file pointer can be moved. Combine with WRITE for read-write access.
Write	Specifies write access to the file. Data can be written to the file and the file pointer can be moved. Combine with READ for read-write access.
ReadWrite	Specifies read and write access to the file. Data can be written to the file and the file pointer can be moved. Data can also be read from the file.

FileMode

enum class Arp::System::Commons::Io::FileMode

strong

Contains constants for specifying how the OS should open a file.

The separate values in this enumeration will control whether you overwrite a file, open an existing file, or some combination thereof. To append to a file, use Append (which maps to OpenOrCreate then we seek to the end of the file). To truncate a file or create it if it doesn't exist, use Create.

Enumerator
None	Not specified
CreateNew	Creates a new file. An exception is raised if the file already exists.
Create	Creates a new file. If the file already exists, it is overwritten.
Open	Opens an existing file. An exception is raised if the file does not exist.
OpenOrCreate	Opens the file for update, if it exists. Otherwise, creates a new file.
Truncate	Opens an existing file. Once opened, the file is truncated so that its size is zero bytes. The calling process must open the file with at least WRITE access. An exception is raised if the file does not exist.
Append	Opens the file if it exists and seeks to the end. Otherwise, creates a new file.

SeekOrigin

enum class Arp::System::Commons::Io::SeekOrigin

strong

Provides seek reference points. To seek to the end of a stream, call stream.Seek(0, SeekOrigin.End).

These constants match Win32's FILE_BEGIN, FILE_CURRENT, and FILE_END

Enumerator
None	Not specified
Begin	Specifies the beginning of a stream.
Current	Specifies the current position of a stream.
End	Specifies the end of a stream.