PLearn::FilesIntStream Class Reference

#include <IntStream.h>

Inheritance diagram for PLearn::FilesIntStream:

[legend]Collaboration diagram for PLearn::FilesIntStream:

[legend]List of all members.

Public Member Functions
	FilesIntStream (int nfiles, const char *files[])
virtual void	seek (long position)
	move to given position
virtual int	next ()
	return next available int from the stream and increment position
virtual int	current ()
	return next available int from the stream
virtual long	size ()
	total length of the stream
virtual void	reopen ()
virtual	~FilesIntStream ()
Protected Member Functions
	FilesIntStream (FilesIntStream &x)
	disallow a copy
void	read_current ()
	read from current current_file at next_pos_in_current_file into current_value
Protected Attributes
int	n_files
	number of files
const char **	file_names
	names of each of the files;
FILE **	fp
	pointers to each of the files;
int	current_file
	between 0 and n_files-1
int	next_pos_in_current_file
	position within current file
int *	sizes
int	total_size
	sum_i sizes[i]
int	current_value
	just read at current position

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Constructor & Destructor Documentation

PLearn::FilesIntStream::FilesIntStream (  FilesIntStream &  x  )  [inline, protected]

disallow a copy Definition at line 133 of file IntStream.h. References PLERROR.

PLearn::FilesIntStream::FilesIntStream (  int  nfiles, const char *  files[] )

Definition at line 123 of file IntStream.cc. References file_names, fp, n_files, PLERROR, read_current(), sizes, and total_size.

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

Definition at line 237 of file IntStream.cc. References fp, n_files, and sizes.

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Member Function Documentation

int PLearn::FilesIntStream::current (   )  [virtual]

return next available int from the stream Reimplemented from PLearn::IntStream. Definition at line 226 of file IntStream.cc. References current_value.

int PLearn::FilesIntStream::next (   )  [virtual]

return next available int from the stream and increment position Reimplemented from PLearn::IntStream. Definition at line 218 of file IntStream.cc. References current_value, and read_current().

void PLearn::FilesIntStream::read_current (   )  [protected]

read from current current_file at next_pos_in_current_file into current_value Definition at line 157 of file IntStream.cc. References current_file, current_value, file_names, fp, n_files, next_pos_in_current_file, PLERROR, PLearn::reverse_int(), seek(), sizes, and total_size. Referenced by FilesIntStream(), next(), and seek().

void PLearn::FilesIntStream::reopen (   )  [virtual]

re-open all the file pointers and seek(position()) this is useful when a forked child process wants access to the same stream without interfering with parent Reimplemented from PLearn::IntStream. Definition at line 142 of file IntStream.cc. References file_names, fp, n_files, PLERROR, and seek().

void PLearn::FilesIntStream::seek (  long  position  )  [virtual]

move to given position Reimplemented from PLearn::IntStream. Definition at line 195 of file IntStream.cc. References current_file, file_names, fp, n_files, next_pos_in_current_file, PLERROR, read_current(), sizes, and total_size. Referenced by read_current(), and reopen().

long PLearn::FilesIntStream::size (   )  [virtual]

total length of the stream Reimplemented from PLearn::IntStream. Definition at line 232 of file IntStream.cc. References total_size.

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Member Data Documentation

int PLearn::FilesIntStream::current_file [protected]

between 0 and n_files-1 Definition at line 127 of file IntStream.h. Referenced by read_current(), and seek().

int PLearn::FilesIntStream::current_value [protected]

just read at current position Definition at line 131 of file IntStream.h. Referenced by current(), next(), and read_current().

const char* * PLearn::FilesIntStream::file_names [protected]

names of each of the files; Definition at line 125 of file IntStream.h. Referenced by FilesIntStream(), read_current(), reopen(), and seek().

FILE** PLearn::FilesIntStream::fp [protected]

pointers to each of the files; Definition at line 126 of file IntStream.h. Referenced by FilesIntStream(), read_current(), reopen(), seek(), and ~FilesIntStream().

int PLearn::FilesIntStream::n_files [protected]

number of files Definition at line 124 of file IntStream.h. Referenced by FilesIntStream(), read_current(), reopen(), seek(), and ~FilesIntStream().

int PLearn::FilesIntStream::next_pos_in_current_file [protected]

position within current file Definition at line 128 of file IntStream.h. Referenced by read_current(), and seek().

int* PLearn::FilesIntStream::sizes [protected]

Definition at line 129 of file IntStream.h. Referenced by FilesIntStream(), read_current(), seek(), and ~FilesIntStream().

int PLearn::FilesIntStream::total_size [protected]

sum_i sizes[i] Definition at line 130 of file IntStream.h. Referenced by FilesIntStream(), read_current(), seek(), and size().

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

• IntStream.h
• IntStream.cc

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