wreport::sys::Tempfile Class Reference

Open a temporary file. More...

#include <sys.h>

Inheritance diagram for wreport::sys::Tempfile:

Public Member Functions
	Tempfile (const std::string &prefix)
	Tempfile (const char *prefix)
void	unlink_on_exit (bool val)
	Change the unlink-on-exit behaviour.
void	unlink ()
	Unlink the file right now.
Public Member Functions inherited from wreport::sys::File
	File (File &&)=default
	File (const File &)=delete
	File (const std::string &pathname)
	Create an unopened File object for the given pathname.
	File (const std::string &pathname, int flags, mode_t mode=0777)
	Wrapper around open(2).
File &	operator= (const File &)=delete
File &	operator= (File &&)=default
void	open (int flags, mode_t mode=0777)
	Wrapper around open(2).
bool	open_ifexists (int flags, mode_t mode=0777)
	Wrap open(2) and return false instead of throwing an exception if open fails with ENOENT.
	ManagedNamedFileDescriptor (ManagedNamedFileDescriptor &&)=default
	ManagedNamedFileDescriptor (const ManagedNamedFileDescriptor &)=delete
Public Member Functions inherited from wreport::sys::ManagedNamedFileDescriptor
	ManagedNamedFileDescriptor (ManagedNamedFileDescriptor &&)=default
	ManagedNamedFileDescriptor (const ManagedNamedFileDescriptor &)=delete
	~ManagedNamedFileDescriptor ()
	The destructor closes the file descriptor, but does not check errors on ::close().
ManagedNamedFileDescriptor &	operator= (const ManagedNamedFileDescriptor &)=delete
ManagedNamedFileDescriptor &	operator= (ManagedNamedFileDescriptor &&)
	NamedFileDescriptor (int fd, const std::string &pathname)
	NamedFileDescriptor (NamedFileDescriptor &&)
	NamedFileDescriptor (const NamedFileDescriptor &o)=default
Public Member Functions inherited from wreport::sys::NamedFileDescriptor
	NamedFileDescriptor (int fd, const std::string &pathname)
	NamedFileDescriptor (NamedFileDescriptor &&)
NamedFileDescriptor &	operator= (NamedFileDescriptor &&)
	NamedFileDescriptor (const NamedFileDescriptor &o)=default
NamedFileDescriptor &	operator= (const NamedFileDescriptor &o)=default
virtual void	throw_error (const char *desc)
	Throw an exception based on errno and the given message.
virtual void	throw_runtime_error (const char *desc)
	Throw a runtime_error unrelated from errno.
const std::string &	name () const
	Return the file pathname.
Public Member Functions inherited from wreport::sys::FileDescriptor
	FileDescriptor (FileDescriptor &&o)
	FileDescriptor (int fd)
	FileDescriptor (const FileDescriptor &o)=default
FileDescriptor &	operator= (const FileDescriptor &o)=default
bool	is_open () const
	Check if the file descriptor is open (that is, if it is not -1).
void	close ()
	Close the file descriptor, setting its value to -1.
void	fstat (struct stat &st)
void	fchmod (mode_t mode)
void	futimens (const struct ::timespec ts[2])
void	fsync ()
void	fdatasync ()
int	dup ()
size_t	read (void *buf, size_t count)
bool	read_all_or_retry (void *buf, size_t count)
	Read count bytes into bufr, retrying partial reads, stopping at EOF.
void	read_all_or_throw (void *buf, size_t count)
	Read all the data into buf, throwing runtime_error in case of a partial read.
size_t	write (const void *buf, size_t count)
template<typename Container>
size_t	write (const Container &c)
void	write_all_or_retry (const void *buf, size_t count)
	Write all the data in buf, retrying partial writes.
template<typename Container>
void	write_all_or_retry (const Container &c)
void	write_all_or_throw (const void *buf, size_t count)
	Write all the data in buf, throwing runtime_error in case of a partial write.
template<typename Container>
void	write_all_or_throw (const Container &c)
off_t	lseek (off_t offset, int whence=SEEK_SET)
size_t	pread (void *buf, size_t count, off_t offset)
size_t	pwrite (const void *buf, size_t count, off_t offset)
template<typename Container>
size_t	pwrite (const Container &c, off_t offset)
void	ftruncate (off_t length)
MMap	mmap (size_t length, int prot, int flags, off_t offset=0)
bool	ofd_setlk (struct ::flock &)
	Open file description locks F_OFD_SETLK operation.
bool	ofd_setlkw (struct ::flock &, bool retry_on_signal=true)
	Open file description locks F_OFD_SETLKW operation.
bool	ofd_getlk (struct ::flock &)
	Open file description locks F_OFD_GETLK operation.
int	getfl ()
	Get open flags for the file.
void	setfl (int flags)
	Set open flags for the file.
	operator int () const

Protected Attributes
bool	m_unlink_on_exit = true
Protected Attributes inherited from wreport::sys::NamedFileDescriptor
std::string	pathname
Protected Attributes inherited from wreport::sys::FileDescriptor
int	fd = -1

Additional Inherited Members
Static Public Member Functions inherited from wreport::sys::File
static File	mkstemp (const std::string &prefix)
static File	mkstemp (const char *prefix)
static File	mkstemp (char *pathname_template)

Detailed Description

Open a temporary file.

By default, the temporary file will be deleted when the object is deleted.

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

• sys.h