Base class for all File System specific objects. More...

#include <file.hxx>

Inheritance diagram for osl::FileBase:

Public Types
enum	RC { E_None = osl_File_E_None , E_PERM = osl_File_E_PERM , E_NOENT = osl_File_E_NOENT , E_SRCH = osl_File_E_SRCH , E_INTR = osl_File_E_INTR , E_IO = osl_File_E_IO , E_NXIO = osl_File_E_NXIO , E_2BIG = osl_File_E_2BIG , E_NOEXEC = osl_File_E_NOEXEC , E_BADF = osl_File_E_BADF , E_CHILD = osl_File_E_CHILD , E_AGAIN = osl_File_E_AGAIN , E_NOMEM = osl_File_E_NOMEM , E_ACCES = osl_File_E_ACCES , E_FAULT = osl_File_E_FAULT , E_BUSY = osl_File_E_BUSY , E_EXIST = osl_File_E_EXIST , E_XDEV = osl_File_E_XDEV , E_NODEV = osl_File_E_NODEV , E_NOTDIR = osl_File_E_NOTDIR , E_ISDIR = osl_File_E_ISDIR , E_INVAL = osl_File_E_INVAL , E_NFILE = osl_File_E_NFILE , E_MFILE = osl_File_E_MFILE , E_NOTTY = osl_File_E_NOTTY , E_FBIG = osl_File_E_FBIG , E_NOSPC = osl_File_E_NOSPC , E_SPIPE = osl_File_E_SPIPE , E_ROFS = osl_File_E_ROFS , E_MLINK = osl_File_E_MLINK , E_PIPE = osl_File_E_PIPE , E_DOM = osl_File_E_DOM , E_RANGE = osl_File_E_RANGE , E_DEADLK = osl_File_E_DEADLK , E_NAMETOOLONG = osl_File_E_NAMETOOLONG , E_NOLCK = osl_File_E_NOLCK , E_NOSYS = osl_File_E_NOSYS , E_NOTEMPTY = osl_File_E_NOTEMPTY , E_LOOP = osl_File_E_LOOP , E_ILSEQ = osl_File_E_ILSEQ , E_NOLINK = osl_File_E_NOLINK , E_MULTIHOP = osl_File_E_MULTIHOP , E_USERS = osl_File_E_USERS , E_OVERFLOW = osl_File_E_OVERFLOW , E_NOTREADY = osl_File_E_NOTREADY , E_invalidError = osl_File_E_invalidError , E_TIMEDOUT = osl_File_E_TIMEDOUT , E_NETWORK = osl_File_E_NETWORK }

Static Public Member Functions
static RC	getCanonicalName (const ::rtl::OUString &ustrRequestedURL, ::rtl::OUString &ustrValidURL)
	Determine a valid unused canonical name for a requested name. More...

static RC	getAbsoluteFileURL (const ::rtl::OUString &ustrBaseDirectoryURL, const ::rtl::OUString &ustrRelativeFileURL, ::rtl::OUString &ustrAbsoluteFileURL)
	Convert a path relative to a given directory into an full qualified file URL. More...

static RC	getSystemPathFromFileURL (const ::rtl::OUString &ustrFileURL, ::rtl::OUString &ustrSystemPath)
	Convert a file URL into a system dependent path. More...

static RC	getFileURLFromSystemPath (const ::rtl::OUString &ustrSystemPath, ::rtl::OUString &ustrFileURL)
	Convert a system dependent path into a file URL. More...

static RC	searchFileURL (const ::rtl::OUString &ustrFileName, const ::rtl::OUString &ustrSearchPath, ::rtl::OUString &ustrFileURL)
	Search a full qualified system path or a file URL. More...

static RC	getTempDirURL (::rtl::OUString &ustrTempDirURL)
	Retrieves the file URL of the system's temporary directory path. More...

static RC	createTempFile (::rtl::OUString pustrDirectoryURL, oslFileHandle pHandle, ::rtl::OUString *pustrTempFileURL)
	Creates a temporary file in the directory provided by the caller or the directory returned by getTempDirURL. More...

Detailed Description

Base class for all File System specific objects.

See also: Directory; DirectoryItem; File

Member Enumeration Documentation

◆ RC

enum osl::FileBase::RC

Enumerator
E_None	on success
E_PERM	operation not permitted
E_NOENT	no such file or directory
E_SRCH	no process matches the PID
E_INTR	function call was interrupted
E_IO	I/O error occurred.
E_NXIO	no such device or address
E_2BIG	argument list too long
E_NOEXEC	invalid executable file format
E_BADF	bad file descriptor
E_CHILD	there are no child processes
E_AGAIN	resource temp unavailable, try again later
E_NOMEM	no memory available
E_ACCES	file permissions do not allow operation
E_FAULT	bad address; an invalid pointer detected
E_BUSY	resource busy
E_EXIST	file exists where should only be created
E_XDEV	improper link across file systems detected
E_NODEV	wrong device type specified
E_NOTDIR	file isn't a directory where one is needed
E_ISDIR	file is a directory, invalid operation
E_INVAL	invalid argument to library function
E_NFILE	too many distinct file openings
E_MFILE	process has too many distinct files open
E_NOTTY	inappropriate I/O control operation
E_FBIG	file too large
E_NOSPC	no space left on device, write failed
E_SPIPE	invalid seek operation (such as on pipe)
E_ROFS	illegal modification to read-only filesystem
E_MLINK	too many links to file
E_PIPE	broken pipe; no process reading from other end of pipe
E_DOM	domain error (mathematical error)
E_RANGE	range error (mathematical error)
E_DEADLK	deadlock avoided
E_NAMETOOLONG	filename too long
E_NOLCK	no locks available
E_NOSYS	function not implemented
E_NOTEMPTY	directory not empty
E_LOOP	too many levels of symbolic links found during name lookup
E_ILSEQ	invalid or incomplete byte sequence of multibyte char found
E_NOLINK	link has been severed
E_MULTIHOP	remote resource is not directly available
E_USERS	file quote system is confused as there are too many users
E_OVERFLOW	value too large for defined data type
E_NOTREADY	device not ready
E_invalidError	unmapped error: always last entry in enum!
E_TIMEDOUT	socket operation timed out
E_NETWORK

Member Function Documentation

◆ createTempFile()

static RC osl::FileBase::createTempFile	(	::rtl::OUString *	pustrDirectoryURL,
		oslFileHandle *	pHandle,
		::rtl::OUString *	pustrTempFileURL
	)

inlinestatic

Creates a temporary file in the directory provided by the caller or the directory returned by getTempDirURL.

Under UNIX Operating Systems the file will be created with read and write access for the user exclusively. If the caller requests only a handle to the open file but not the name of it, the file will be automatically removed on close else the caller is responsible for removing the file on success.

Parameters

[in]	pustrDirectoryURL	Specifies the full qualified URL where the temporary file should be created. If pustrDirectoryURL is 0 the path returned by osl_getTempDirURL will be used.
[out]	pHandle	On success receives a handle to the open file. If pHandle is 0 the file will be closed on return, in this case pustrTempFileURL must not be 0.
[out]	pustrTempFileURL	On success receives the full qualified URL of the temporary file. If pustrTempFileURL is 0 the file will be automatically removed on close, in this case pHandle must not be 0. If pustrTempFileURL is not 0 the caller receives the name of the created file and is responsible for removing the file.

Description of the different pHandle, ppustrTempFileURL parameter combinations. pHandle is 0 and pustrTempDirURL is 0 - this combination is invalid
pHandle is not 0 and pustrTempDirURL is 0 - a handle to the open file will be returned on success and the file will be automatically removed on close
pHandle is 0 and pustrTempDirURL is not 0 - the name of the file will be returned, the caller is responsible for opening, closing and removing the file.
pHandle is not 0 and pustrTempDirURL is not 0 - a handle to the open file as well as the file name will be returned, the caller is responsible for closing and removing the file.

Return values

E_None	on success
E_INVAL	the format of the parameter is invalid
E_NOMEM	not enough memory for allocating structures
E_ACCES	Permission denied
E_NOENT	No such file or directory
E_NOTDIR	Not a directory
E_ROFS	Read-only file system
E_NOSPC	No space left on device
E_DQUOT	Quota exceeded

See also: getTempDirURL()

◆ getAbsoluteFileURL()

static RC osl::FileBase::getAbsoluteFileURL	(	const ::rtl::OUString &	ustrBaseDirectoryURL,
		const ::rtl::OUString &	ustrRelativeFileURL,
		::rtl::OUString &	ustrAbsoluteFileURL
	)

inlinestatic

Convert a path relative to a given directory into an full qualified file URL.

Convert a path relative to a given directory into an full qualified file URL. The function resolves symbolic links if possible and path ellipses, so on success the resulting absolute path is fully resolved.

Parameters

[in]	ustrBaseDirectoryURL	Base directory URL to which the relative path is related to.
[in]	ustrRelativeFileURL	A URL of a file or directory relative to the directory path specified by ustrBaseDirectoryURL or an absolute path. If ustrRelativeFileURL denotes an absolute path ustrBaseDirectoryURL will be ignored.
[out]	ustrAbsoluteFileURL	On success it receives the full qualified absolute file URL.

Return values

E_None	on success
E_INVAL	the format of the parameters was not valid
E_NOMEM	not enough memory for allocating structures
E_NOTDIR	not a directory
E_ACCES	permission denied
E_NOENT	no such file or directory
E_NAMETOOLONG	file name too long
E_OVERFLOW	value too large for defined data type
E_FAULT	bad address
E_INTR	function call was interrupted
E_LOOP	too many symbolic links encountered
E_MULTIHOP	multihop attempted
E_NOLINK	link has been severed

See also: DirectoryItem::getFileStatus()

◆ getCanonicalName()

static RC osl::FileBase::getCanonicalName	(	const ::rtl::OUString &	ustrRequestedURL,
		::rtl::OUString &	ustrValidURL
	)

inlinestatic

Determine a valid unused canonical name for a requested name.

Determines a valid unused canonical name for a requested name. Depending on the Operating System and the File System the illegal characters are replaced by valid ones. If a file or directory with the requested name already exists a new name is generated following the common rules on the actual Operating System and File System.

Parameters

[in]	ustrRequestedURL	Requested name of a file or directory.
[out]	ustrValidURL	On success receives a name which is unused and valid on the actual Operating System and File System.

Return values

E_None	on success
E_INVAL	the format of the parameters was not valid

See also: DirectoryItem::getFileStatus()

◆ getFileURLFromSystemPath()

static RC osl::FileBase::getFileURLFromSystemPath	(	const ::rtl::OUString &	ustrSystemPath,
		::rtl::OUString &	ustrFileURL
	)

inlinestatic

Convert a system dependent path into a file URL.

Parameters

[in]	ustrSystemPath	A System dependent path of a file or directory.
[out]	ustrFileURL	On success it receives the file URL.

Return values

E_None	on success
E_INVAL	the format of the parameters was not valid

See also: getSystemPathFromFileURL()

◆ getSystemPathFromFileURL()

static RC osl::FileBase::getSystemPathFromFileURL	(	const ::rtl::OUString &	ustrFileURL,
		::rtl::OUString &	ustrSystemPath
	)

inlinestatic

Convert a file URL into a system dependent path.

Parameters

[in]	ustrFileURL	A File URL.
[out]	ustrSystemPath	On success it receives the system path.

Return values

E_None	on success
E_INVAL	the format of the parameters was not valid

See also: getFileURLFromSystemPath()

◆ getTempDirURL()

static RC osl::FileBase::getTempDirURL ( ::rtl::OUString & ustrTempDirURL )

inlinestatic

Retrieves the file URL of the system's temporary directory path.

Parameters

[out] ustrTempDirURL On success receives the URL of system's temporary directory path.

Return values

E_None	on success
E_NOENT	no such file or directory not found

◆ searchFileURL()

static RC osl::FileBase::searchFileURL	(	const ::rtl::OUString &	ustrFileName,
		const ::rtl::OUString &	ustrSearchPath,
		::rtl::OUString &	ustrFileURL
	)

inlinestatic

Search a full qualified system path or a file URL.

Parameters

[in]	ustrFileName	A system dependent path, a file URL, a file or relative directory
[in]	ustrSearchPath	A list of system paths, in which a given file has to be searched. The Notation of a path list is system dependent, e.g. on UNIX system "/usr/bin:/bin" and on Windows "C:\BIN;C:\BATCH". These paths are only for the search of a file or a relative path, otherwise it will be ignored. If ustrSearchPath is NULL or while using the search path the search failed, the function searches for a matching file in all system directories and in the directories listed in the PATH environment variable. The value of an environment variable should be used (e.g. LD_LIBRARY_PATH) if the caller is not aware of the Operating System and so doesn't know which path list delimiter to use.
[out]	ustrFileURL	On success it receives the full qualified file URL.

Return values

E_None	on success
E_INVAL	the format of the parameters was not valid
E_NOTDIR	not a directory
E_NOENT	no such file or directory not found

See also: getFileURLFromSystemPath(); getSystemPathFromFileURL()

The documentation for this class was generated from the following file:

osl/file.hxx

Public Types

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ RC

Member Function Documentation

◆ createTempFile()

◆ getAbsoluteFileURL()

◆ getCanonicalName()

◆ getFileURLFromSystemPath()

◆ getSystemPathFromFileURL()

◆ getTempDirURL()

◆ searchFileURL()