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Disk ARchive
2.5.2
Full featured and portable backup and archiving tool
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zapette emulate a file that is remotely controlled by slave_zapette More...
#include <zapette.hpp>
Inherits libdar::generic_file, libdar::contextual, and libdar::mem_ui.
Public Member Functions | |
zapette (const user_interaction &dialog, generic_file *input, generic_file *output, bool by_the_end) | |
zapette constructor | |
bool | skippable (skippability direction, const infinint &amount) |
bool | skip (const infinint &pos) |
bool | skip_to_eof () |
skip to the end of file | |
bool | skip_relative (S_I x) |
skip relatively to the current position | |
infinint | get_position () const |
get the current read/write position | |
void | set_info_status (const std::string &s) |
bool | is_an_old_start_end_archive () const |
const label & | get_data_name () const |
Protected Member Functions | |
void | inherited_read_ahead (const infinint &amount) |
U_I | inherited_read (char *a, U_I size) |
implementation of read() operation | |
void | inherited_write (const char *a, U_I size) |
implementation of the write() operation | |
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 |
zapette emulate a file that is remotely controlled by slave_zapette
class zapette sends order to slave_zapette throw a a first pipe and receive informations or data in return from a second pipe from slave_zapette
Definition at line 54 of file zapette.hpp.
libdar::zapette::zapette | ( | const user_interaction & | dialog, |
generic_file * | input, | ||
generic_file * | output, | ||
bool | by_the_end | ||
) |
zapette constructor
[in] | dialog | is used to return status information to the user |
[in] | input | is the pipe (see class tuyau) from which is received the information or data |
[in] | output | is used to send orders to slave_zapette |
[in] | by_the_end | if true dar will try to open the archive starting from the end else it will try starting from the first bytes |
void libdar::zapette::inherited_flush_read | ( | ) | [inline, protected, virtual] |
reset internal engine, flush caches in order to read the data at current position
Implements libdar::generic_file.
Definition at line 84 of file zapette.hpp.
U_I libdar::zapette::inherited_read | ( | char * | a, |
U_I | size | ||
) | [protected, virtual] |
implementation of read() operation
[in,out] | a | where to put the data to read |
[in] | size | says how much data to read |
Implements libdar::generic_file.
void libdar::zapette::inherited_read_ahead | ( | const infinint & | amount | ) | [inline, protected, virtual] |
tells the object that several calls to read() will follow to probably obtain at least the given amount of data
[in] | amount | is the maximum expected amount of data that is known to be read |
Implements libdar::generic_file.
Definition at line 80 of file zapette.hpp.
void libdar::zapette::inherited_sync_write | ( | ) | [inline, protected, virtual] |
write down any pending data
Implements libdar::generic_file.
Definition at line 83 of file zapette.hpp.
void libdar::zapette::inherited_terminate | ( | ) | [protected, virtual] |
destructor-like call, except that it is allowed to throw exceptions
Implements libdar::generic_file.
void libdar::zapette::inherited_write | ( | const char * | a, |
U_I | size | ||
) | [protected, virtual] |
implementation of the write() operation
[in] | a | what data to write |
[in] | size | amount of data to write |
Implements libdar::generic_file.
bool libdar::zapette::skip | ( | const infinint & | pos | ) | [virtual] |
skip at the absolute position
[in] | pos | the offset in byte where next read/write operation must start |
Implements libdar::generic_file.
bool libdar::zapette::skippable | ( | skippability | direction, |
const infinint & | amount | ||
) | [inline, virtual] |
whether the implementation is able to skip
Implements libdar::generic_file.
Definition at line 68 of file zapette.hpp.