PLearn::FilePStreamBuf Class Reference

#include <FilePStreamBuf.h>

Inheritance diagram for PLearn::FilePStreamBuf:

[legend]Collaboration diagram for PLearn::FilePStreamBuf:

[legend]List of all members.


Public Member Functions
	FilePStreamBuf ()
virtual	~FilePStreamBuf ()
	PLEARN_DECLARE_OBJECT (FilePStreamBuf)
virtual void	build ()
virtual void	makeDeepCopyFromShallowCopy (map< const void , void > &copies)
	Transforms a shallow copy into a deep copy.
Static Public Member Functions
string	getFilePathFromURL (string fileurl)
Public Attributes
string	url
string	openmode
Protected Member Functions
virtual streamsize	read_ (char *p, streamsize n)
	reads up to n characters into p You should override this call in subclasses.
virtual void	write_ (const char *p, streamsize n)
	writes exactly n characters from p (unbuffered, must flush)
Static Protected Member Functions
void	declareOptions (OptionList &ol)
	Declares this class' options.
Protected Attributes
FILE *	f
Private Types
typedef PStreamBuf	inherited
Private Member Functions
void	build_ ()
	This does the actual building.

Member Typedef Documentation

typedef PStreamBuf PLearn::FilePStreamBuf::inherited [private]

Reimplemented from PLearn::PStreamBuf.
Definition at line 57 of file FilePStreamBuf.h.

Constructor & Destructor Documentation

PLearn::FilePStreamBuf::FilePStreamBuf ( )

Definition at line 54 of file FilePStreamBuf.cc.

PLearn::FilePStreamBuf::~FilePStreamBuf ( ) [virtual]

Definition at line 64 of file FilePStreamBuf.cc.
References f.

Member Function Documentation

void PLearn::FilePStreamBuf::build ( ) [virtual]

Definition at line 115 of file FilePStreamBuf.cc.
References build_().
Referenced by makeDeepCopyFromShallowCopy().

void PLearn::FilePStreamBuf::build_ ( ) [private]

This does the actual building.

Reimplemented from PLearn::PStreamBuf.
Definition at line 85 of file FilePStreamBuf.cc.
References f, getFilePathFromURL(), openmode, PLERROR, and url.
Referenced by build().

void PLearn::FilePStreamBuf::declareOptions ( OptionList & ol ) [static, protected]

Declares this class' options.

Definition at line 73 of file FilePStreamBuf.cc.
References PLearn::declareOption(), and PLearn::OptionList.

string PLearn::FilePStreamBuf::getFilePathFromURL ( string fileurl ) [static]

Definition at line 49 of file FilePStreamBuf.cc.
Referenced by build_().

void PLearn::FilePStreamBuf::makeDeepCopyFromShallowCopy ( map< const void *, void * > & copies ) [virtual]

Transforms a shallow copy into a deep copy.

Definition at line 135 of file FilePStreamBuf.cc.
References build(), and f.

PLearn::FilePStreamBuf::PLEARN_DECLARE_OBJECT ( FilePStreamBuf )

FilePStreamBuf::streamsize PLearn::FilePStreamBuf::read_ ( char * p,

streamsize n

) [protected, virtual]

reads up to n characters into p You should override this call in subclasses.
On success, the number of bytes read is returned. Zero indicates end of file. If we are not at end of file, at least one character should be returned (the call must block until at least one char is available). It is not an error if the number returned is smaller than the number of bytes requested; this may happen for example because fewer bytes are actually available right now (maybe because we were close to end-of-file, or because we are reading from a pipe, or from a terminal). If an error occurs, an exception should be thrown.
Reimplemented from PLearn::PStreamBuf.
Definition at line 121 of file FilePStreamBuf.cc.
References f.

void PLearn::FilePStreamBuf::write_ ( const char * p,

streamsize n

) [protected, virtual]

writes exactly n characters from p (unbuffered, must flush)

Reimplemented from PLearn::PStreamBuf.
Definition at line 127 of file FilePStreamBuf.cc.
References f, and PLERROR.