Disk ARchive
2.4.15
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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 More... | |
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 | |
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 () |
inherited from generic_file | |
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generic_file (gf_mode m) | |
main constructor | |
generic_file (const generic_file &ref) | |
copy constructor | |
void | terminate () const |
virtual destructor, this let inherited destructor to be called even from a generic_file pointer to an inherited class More... | |
const generic_file & | operator= (const generic_file &ref) |
assignment operator | |
gf_mode | get_mode () const |
retreive the openning mode for this object | |
U_I | read (char *a, U_I size) |
read data from the generic_file More... | |
void | write (const char *a, U_I size) |
write data to the generic_file More... | |
void | write (const std::string &arg) |
write a string to the generic_file More... | |
S_I | read_back (char &a) |
skip back one char, read on char and skip back one char | |
S_I | read_forward (char &a) |
read one char | |
virtual void | copy_to (generic_file &ref) |
copy all data from current position to the object in argument | |
virtual void | copy_to (generic_file &ref, const infinint &crc_size, crc *&value) |
copy all data from the current position to the object in argument and computes a CRC value of the transmitted data More... | |
U_32 | copy_to (generic_file &ref, U_32 size) |
small copy (up to 4GB) with CRC calculation | |
infinint | copy_to (generic_file &ref, infinint size) |
copy the given amount to the object in argument | |
bool | diff (generic_file &f, const infinint &crc_size, crc *&value) |
compares the contents with the object in argument More... | |
bool | diff (generic_file &f, const infinint &crc_size, crc *&value, infinint &err_offset) |
void | reset_crc (const infinint &width) |
reset CRC on read or writen data More... | |
bool | crc_status () const |
to known whether CRC calculation is activated or not | |
crc * | get_crc () |
get CRC of the transfered date since last reset More... | |
void | sync_write () |
write any pending data | |
Protected Member Functions | |
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 More... | |
void | inherited_terminate () |
destructor-like call, except that it is allowed to throw exceptions More... | |
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void | set_mode (gf_mode x) |
bool | is_terminated () const |
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 |
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) |
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 |
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) |
other constructor, the end of the segment is the end of the underlying generic_file only data before offset is inaccessible
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inlineprotectedvirtual |
write down any pending data
Implements libdar::generic_file.
Definition at line 84 of file tronc.hpp.
References libdar::generic_file::sync_write().
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inlineprotectedvirtual |
destructor-like call, except that it is allowed to throw exceptions
Implements libdar::generic_file.
Definition at line 85 of file tronc.hpp.
References libdar::generic_file::terminate().