tools.hpp File Reference

a set of general purpose routines More...

#include "../my_config.h"
#include <string>
#include <vector>
#include <deque>
#include <map>
#include <set>
#include "path.hpp"
#include "infinint.hpp"
#include "generic_file.hpp"
#include "integers.hpp"
#include "tlv_list.hpp"
#include "datetime.hpp"
#include "entrepot.hpp"

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Namespaces
	libdar
	libdar namespace encapsulate all libdar symbols

Functions
void	libdar::tools_init ()
	libdar internal use only: it is launched from get_version() and initializes tools internal variables
void	libdar::tools_end ()
	libdar internal use only: it is launched from close_and_clean() and releases tools internal variables
void	libdar::tools_write_string (generic_file &f, const std::string &s)
	write a string to a file with a '\0' at then end More...
void	libdar::tools_read_string (generic_file &f, std::string &s)
	read a string from a file expecting it to terminate by '\0' More...
void	libdar::tools_write_string_all (generic_file &f, const std::string &s)
	write a string to a file, '\0' has no special meaning nor is added at the end More...
void	libdar::tools_read_string_size (generic_file &f, std::string &s, infinint taille)
	read a string if given size from a file '\0' has no special meaning More...
infinint	libdar::tools_get_filesize (const path &p)
	retrieve the size in byte of a file More...
std::string	libdar::tools_display_integer_in_metric_system (infinint number, const std::string &unit, bool binary)
std::string::iterator	libdar::tools_find_last_char_of (std::string &s, unsigned char v)
	give a pointer to the last character of the given value in the given string More...
void	libdar::tools_blocking_read (int fd, bool mode)
	set blocking/not blocking mode for reading on a file descriptor More...
std::string	libdar::tools_name_of_uid (const infinint &uid)
	convert uid to name in regards to the current system's configuration More...
std::string	libdar::tools_name_of_gid (const infinint &gid)
	convert gid to name in regards of the current system's configuration More...
std::string	libdar::tools_uword2str (U_16 x)
	convert unsigned word to string More...
std::string	libdar::tools_int2str (S_I x)
	convert integer to string More...
std::string	libdar::tools_uint2str (U_I x)
std::string	libdar::tools_addspacebefore (std::string s, U_I expected_size)
	prepend spaces before the given string More...
std::string	libdar::tools_display_date (const datetime &date)
	convert a date in second to its human readable representation More...
char *	libdar::tools_str2charptr (const std::string &x)
	convert a string to a char * More...
U_I	libdar::tools_str2int (const std::string &x)
	convert an integer written in decimal notation to the corresponding value More...
void	libdar::tools_system (user_interaction &dialog, const std::vector< std::string > &argvector)
	wrapper to the "system" system call. More...
void	libdar::tools_system_with_pipe (const std::shared_ptr< user_interaction > &dialog, const std::string &dar_cmd, const std::vector< std::string > &argvpipe)
	wrapper to the "system" system call using anonymous pipe to tranmit arguments to the child process More...
void	libdar::tools_write_vector (generic_file &f, const std::vector< std::string > &x)
	write a list of string to file More...
void	libdar::tools_read_vector (generic_file &f, std::vector< std::string > &x)
	read a list of string from a file More...
std::string	libdar::tools_concat_vector (const std::string &separator, const std::vector< std::string > &x)
	concatenate a vectors of strings in a single string More...
std::vector< std::string >	libdar::operator+ (std::vector< std::string > a, std::vector< std::string > b)
	concatenate two vectors More...
bool	libdar::tools_is_equal_with_hourshift (const infinint &hourshift, const datetime &date1, const datetime &date2)
	test if two dates are equal taking care of a integer hour of difference More...
template<class T >
std::vector< T >	libdar::operator+= (std::vector< T > &a, const std::vector< T > &b)
	template function to add two vectors
std::string	libdar::tools_readlink (const char *root)
	returns the file pointed to by a symbolic link (or transparent if the file is not a symlink). More...
void	libdar::tools_noexcept_make_date (const std::string &chem, bool symlink, const datetime &last_acc, const datetime &last_mod, const datetime &birth)
	set dates of a given file, no exception thrown More...
void	libdar::tools_make_date (const std::string &chemin, bool symlink, const datetime &access, const datetime &modif, const datetime &birth)
	set dates of a given file, may throw exception More...
bool	libdar::tools_is_case_insensitive_equal (const std::string &a, const std::string &b)
	compare two string in case insensitive manner More...
void	libdar::tools_to_upper (const std::string &r, std::string &uppered)
	convert a string to upper case More...
std::string	libdar::tools_printf (const char *format,...)
	make printf-like formating to a std::string More...
std::string	libdar::tools_vprintf (const char *format, va_list ap)
	make printf-like formating to a std::string More...
bool	libdar::tools_do_some_files_match_mask_regex (const entrepot &ent, const std::string &file_mask)
	test the presence of files corresponding to a given mask in a directory (regex mask) More...
void	libdar::tools_unlink_file_mask_regex (user_interaction &dialog, const entrepot &ent, const std::string &file_mask, bool info_details)
	remove files from a given directory More...
void	libdar::tools_avoid_slice_overwriting_regex (user_interaction &dialog, const entrepot &ent, const std::string &basename, const std::string &extension, bool info_details, bool allow_overwriting, bool warn_overwriting, bool dry_run)
	prevents slice overwriting: check the presence of slice and if necessary ask the user if they can be removed More...
bool	libdar::tools_are_on_same_filesystem (const std::string &file1, const std::string &file2)
	tells whether two files are on the same mounted filesystem More...
path	libdar::tools_relative2absolute_path (const path &src, const path &cwd)
	transform a relative path to an absolute one given the current directory value More...
void	libdar::tools_block_all_signals (sigset_t &old_mask)
	block all signals (based on POSIX sigprocmask) More...
void	libdar::tools_set_back_blocked_signals (sigset_t old_mask)
	unblock signals according to given mask More...
U_I	libdar::tools_count_in_string (const std::string &s, const char a)
	counts the number of a given char in a given string More...
datetime	libdar::tools_get_mtime (user_interaction &dialog, const std::string &s, bool auto_zeroing, bool silent, const std::set< std::string > &ignored_as_symlink=std::set< std::string >())
	returns the last modification date of the given file More...
infinint	libdar::tools_get_size (const std::string &s)
	returns the size of the given plain file More...
infinint	libdar::tools_get_extended_size (std::string s, U_I base)
	convert the given string to infinint taking care of multiplication suffixes like k, M, T, etc. More...
std::string	libdar::tools_substitute (const std::string &hook, const std::map< char, std::string > &corres)
	produce the string resulting from the substition of % macro defined in the map More...
std::string	libdar::tools_hook_substitute (const std::string &hook, const std::string &path, const std::string &basename, const std::string &num, const std::string &padded_num, const std::string &ext, const std::string &context, const std::string &base_url)
	produces the string resulting from the substitution of %... macro More...
void	libdar::tools_hook_execute (user_interaction &ui, const std::string &cmd_line)
	execute and retries at user will a given command line More...
void	libdar::tools_hook_substitute_and_execute (user_interaction &ui, const std::string &hook, const std::string &path, const std::string &basename, const std::string &num, const std::string &padded_num, const std::string &ext, const std::string &context, const std::string &base_url)
	subsititue and execute command line More...
std::string	libdar::tools_output2xml (const std::string &src)
	convert string for xml output More...
U_I	libdar::tools_octal2int (const std::string &perm)
	convert octal string to integer More...
std::string	libdar::tools_int2octal (const U_I &perm)
	convert a number to a string corresponding to its octal representation More...
char	libdar::tools_cast_type_to_unix_type (char type)
	change the libdar internal type representation to the usual unix char type
std::string	libdar::tools_get_permission_string (char type, U_32 perm, bool hard)
	convert a permission number into its string representation (rwxrwxrwx)
void	libdar::tools_set_permission (S_I fd, U_I perm)
	change the permission of the file which descriptor is given More...
U_I	libdar::tools_get_permission (S_I fd)
	obtain the permission of the file which descriptor is given More...
uid_t	libdar::tools_ownership2uid (const std::string &user)
	change ownership of the file which descriptor is given More...
uid_t	libdar::tools_ownership2gid (const std::string &group)
	convert string group name or gid to numeric gid value More...
void	libdar::tools_set_ownership (S_I filedesc, const std::string &slice_user, const std::string &slice_group)
	change ownership of the file which descriptor is given More...
void	libdar::tools_memxor (void *dest, const void *src, U_I n)
	Produces in "dest" the XORed value of "dest" and "src". More...
tlv_list	libdar::tools_string2tlv_list (user_interaction &dialog, const U_16 &type, const std::vector< std::string > &data)
	Produces a list of TLV from a constant type and a list of string. More...
U_I	libdar::tools_pseudo_random (U_I max)
	Produces a pseudo random number x, where 0 <= x < max. More...
template<class N , class B >
std::deque< B >	libdar::tools_number_base_decomposition_in_big_endian (N number, const B &base)
	Template for the decomposition of any number in any base (decimal, octal, hexa, etc.) More...
std::string	libdar::tools_unsigned_char_to_hexa (unsigned char x)
	convert a unsigned char into its hexa decima representation More...
std::string	libdar::tools_string_to_hexa (const std::string &input)
	convert a string into its hexadecima representation More...
infinint	libdar::tools_file_size_to_crc_size (const infinint &size)
	Defines the CRC size to use for a given filesize. More...
std::string	libdar::tools_getcwd ()
	get current working directory
std::string	libdar::tools_get_compression_ratio (const infinint &storage_size, const infinint &file_size, bool compressed)
	return the string about compression ratio
std::string	libdar::tools_strerror_r (int errnum)
	wrapper routine to strerror_r
void	libdar::tools_secu_string_show (user_interaction &dialog, const std::string &msg, const secu_string &key)
	display the content of a secu_string, this function is only for trouble shooting!
template<class T >
T	libdar::tools_max (T a, T b)
template<class T >
T	libdar::tools_min (T a, T b)
void	libdar::tools_unlink (const std::string &filename)
	remove from filesystem the file which path is given
std::string	libdar::tools_escape_chars_in_string (const std::string &val, const char *to_escape)
	escape with a anti-slash character a set of chars found in the given string
bool	libdar::tools_infinint2U_64 (infinint val, U_64 &res)
	convert an infinint to U_64 (aka "uint64_t" or yet "unsigned long long") More...
bool	libdar::tools_my_atoi (const char *a, U_I &val)
	ascii to integer conversion More...
infinint	libdar::tools_double2infinint (double arg)
	convert a double (float) to infinint (integer) taking care of rounding it to the closest value
template<class T >
void	libdar::tools_check_negative_date (T &val, user_interaction &ui, const char *inode_path, const char *nature, bool ask_before, bool silent)
	check the value is not negative, and if asked set it to zero More...
infinint	libdar::tools_upper_rounded_log2 (const infinint &ref)
	compute an approximate log2 of the argument
infinint	libdar::tools_lower_rounded_exp2 (const infinint &ref)
	compute an approximate exp2 of the argument
infinint	libdar::tools_rounded_square_root (const infinint &ref)
	compute an approximate square root of the argument
infinint	libdar::tools_rounded_cube_root (const infinint &ref)
	compute an approximate cube root of the argument

Detailed Description

a set of general purpose routines

Definition in file tools.hpp.