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Disk ARchive
2.5.2
Full featured and portable backup and archiving tool
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makes a segment of a generic_file appear like a real generic_file More...
#include <tronc.hpp>
Inherits libdar::generic_file.
Inherited by libdar::trontextual.
Public Member Functions | |
tronc (generic_file *f, const infinint &offset, const infinint &size, bool own_f=false) | |
constructor | |
tronc (generic_file *f, const infinint &offset, const infinint &size, gf_mode mode, bool own_f=false) | |
tronc (generic_file *f, const infinint &offset, bool own_f=false) | |
tronc (generic_file *f, const infinint &offset, gf_mode mode, bool own_f=false) | |
~tronc () | |
destructor | |
void | modify (const infinint &new_offset, const infinint &new_size) |
modify the tronc object to zoom on another (size limited) portion of the underlying object | |
void | modify (const infinint &new_offset) |
modify the tronc object to zoom on another (size unlimited) portion of the underlying object | |
void | modify () |
modify the tronc object to become transparent and allow unrestricted access to the underlyuing object | |
bool | skippable (skippability direction, const infinint &amount) |
inherited from generic_file | |
bool | skip (const infinint &pos) |
inherited from generic_file | |
bool | skip_to_eof () |
inherited from generic_file | |
bool | skip_relative (S_I x) |
inherited from generic_file | |
infinint | get_position () const |
inherited from generic_file | |
void | check_underlying_position_while_reading_or_writing (bool mode) |
Protected Member Functions | |
void | inherited_read_ahead (const infinint &amount) |
inherited from generic_file | |
U_I | inherited_read (char *a, U_I size) |
inherited from generic_file | |
void | inherited_write (const char *a, U_I size) |
inherited from generic_file | |
void | inherited_sync_write () |
write down any pending data | |
void | inherited_flush_read () |
void | inherited_terminate () |
destructor-like call, except that it is allowed to throw exceptions |
makes a segment of a generic_file appear like a real generic_file
libdar::tronc::tronc | ( | generic_file * | f, |
const infinint & | offset, | ||
const infinint & | size, | ||
bool | own_f = false |
||
) |
constructor
f | is the file to take the segment from |
offset | is the position of the beginning of the segment |
size | is the size of the segment |
own_f | is true if this object has to owns and may destroy the 'f' object at tronc's destruction time |
libdar::tronc::tronc | ( | generic_file * | f, |
const infinint & | offset, | ||
bool | own_f = false |
||
) |
other constructor, the end of the segment is the end of the underlying generic_file only data before offset is inaccessible
void libdar::tronc::check_underlying_position_while_reading_or_writing | ( | bool | mode | ) | [inline] |
when a tronc is used over a compressor, it becomes necessary to disable position check
void libdar::tronc::inherited_flush_read | ( | ) | [inline, protected, virtual] |
reset internal engine, flush caches in order to read the data at current position
Implements libdar::generic_file.
void libdar::tronc::inherited_sync_write | ( | ) | [inline, protected, virtual] |
write down any pending data
Implements libdar::generic_file.
Definition at line 102 of file tronc.hpp.
References libdar::generic_file::sync_write().
void libdar::tronc::inherited_terminate | ( | ) | [inline, protected, virtual] |
destructor-like call, except that it is allowed to throw exceptions
Implements libdar::generic_file.
Definition at line 104 of file tronc.hpp.
References libdar::generic_file::terminate().