libdar::compile_time Namespace Reference

nested namespace inside libdar More...

Enumerations
enum	endian { big = 'B' , little = 'L' , error = 'E' }
	type used to return the endian nature of the current system More...

Functions
bool	ea () noexcept
	returns whether EA support has been activated at compilation time
bool	largefile () noexcept
	returns whether largefile (>2GiB) support has been activated at compilation time
bool	nodump () noexcept
	returns whether nodump flag support has been activated at compilation time
bool	special_alloc () noexcept
	returns whether special allocation support has been activated at compilation time More...
U_I	bits () noexcept
	returns the internal integer type used More...
bool	thread_safe () noexcept
	returns whether the current libdar is thread safe
bool	libz () noexcept
	returns whether libdar is dependent on libz and if so has gzip compression/decompression available
bool	libbz2 () noexcept
	returns whether libdar is dependent on libbz2 and if so has bzip2 compression/decompression available
bool	liblzo () noexcept
	returns whether libdar is dependent on liblzo and if so has lzo compression/decompression available
bool	libxz () noexcept
	returns whether libdar is dependent on liblxz/liblzma and if so has xz compression/decompression available
bool	libzstd () noexcept
	returns whether libdar is dependent on libzstd and if so has zstd compression/decompression available
bool	liblz4 () noexcept
	returns whether libdar is dependen in liblz4 and if so has lz4 compression/decompression available
bool	libgcrypt () noexcept
	returns whether libdar is dependent on libgcrypt and if so has strong encryption and hashing features available
bool	libargon2 () noexcept
	returns whether libdar is dependent on libargon2 and if it has thus argon2 hash algorithm feature available
bool	furtive_read () noexcept
	returns whether libdar can support furtive read mode when run by privileged user
endian	system_endian () noexcept
	returns the detected integer endian of the system
bool	posix_fadvise () noexcept
	returns true if libdar has support for posix_fadvise activated available
bool	fast_dir () noexcept
	returns whether libdar has been built with speed optimization for last directory
bool	FSA_linux_extX () noexcept
	returns whether libdar has been built with support for linux ext2/3/4 FSA
bool	FSA_birthtime () noexcept
	returns whether libdar has been built with support for HFS+ FSA
bool	Linux_statx () noexcept
	returns whether libdar has been built with support for Linux statx()
bool	microsecond_read () noexcept
	returns whether libdar is able to read timestamps at least at microsecond accuracy
bool	nanosecond_read () noexcept
	returns whether libdar is able to read timestamps at least at nanosecond accuracy
bool	microsecond_write () noexcept
	returns whether libdar is able to write timestamps at least at microsecond accuracy
bool	nanosecond_write () noexcept
	returns whether libdar is able to write timestamps at least at nanosecond accuracy
bool	symlink_restore_dates () noexcept
	returns whether libdar is able to restore dates of symlinks
bool	public_key_cipher () noexcept
	returns whether public key cipher (relying on gpgme) are available
bool	libthreadar () noexcept
	returns whether libthreadar linking will be done, allowing libdar to span several threads
std::string	libthreadar_version () noexcept
	return libthreadar version or empty string libthreadar is not available
bool	librsync () noexcept
	returns whether delta compression is available and delta diff stuff with it
bool	remote_repository () noexcept
	returns whether remote SFTP and FTP repository are both available
bool	ftp_repository () noexcept
	returns whether FTP repository support is available
bool	sftp_repository () noexcept
	returns whether FTP repository support is available
bool	whirlpool_hash () noexcept
	returns whether whirlpool hash algorithm is available
std::string	libcurl_version () noexcept
	returns the libcurl version used or empty string if not available
U_I	thread_stack_size () noexcept
	return the thread stack size if configured from libdar else 0 for default config More...

Detailed Description

nested namespace inside libdar

it contains one routine per feature that can be activated or disabled at compile time this is to replace the "libdar::get_compile_time_feature" function that cannot be updates without breaking backward compatibility

Enumeration Type Documentation

endian

enum libdar::compile_time::endian

type used to return the endian nature of the current system

Enumerator
big	big endian
little	little endian
error	neither big nor little endian! (libdar cannot run on such system)

Definition at line 99 of file compile_time_features.hpp.

Function Documentation

bits()

U_I libdar::compile_time::bits ( )

noexcept

returns the internal integer type used

Note

zero is returned if infinint type is used

special_alloc()

bool libdar::compile_time::special_alloc ( )

noexcept

returns whether special allocation support has been activated at compilation time

special allocation support brings from a tiny to an important improvement in execution time, depending on the number of small files involved in the operation

thread_stack_size()

U_I libdar::compile_time::thread_stack_size ( )

noexcept

return the thread stack size if configured from libdar else 0 for default config

Note

this concerns only threads created by libdar, not threads from which libdar is runnig