file_util.cpp File Reference

#include <jau/debug.hpp>
#include <jau/file_util.hpp>
#include <jau/base_codec.hpp>
#include <jau/os/os_support.hpp>
#include <cstdint>
#include <cstdlib>
#include <cinttypes>
#include <limits>
#include <cstring>
#include <cstdio>
#include <random>
#include <unistd.h>
#include <dirent.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/mount.h>

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Classes
struct	copy_context_t

Macros
#define	__posix_fstatat64   ::fstatat64
#define	__posix_openat64   ::openat64
#define	APPEND_BITSTR(U, V, M)   append_bitstr(out, M, U::V, #V, comma);
#define	COPYOPTIONS_BIT_ENUM(X, M)
#define	FILESTATS_FIELD_ENUM(X, M)
#define	FMODEBITS_ENUM(X, M)
#define	O_BINARY   0
#define	O_NONBLOCK   0
#define	TRAVERSEEVENT_ENUM(X, M)
#define	TRAVERSEOPTIONS_ENUM(X, M)

Typedefs
typedef struct ::stat64	struct_stat64

Functions
static bool	_dir_item_basename_compare (const dir_item &a, const dir_item &b)
static bool	_visit (const file_stats &item_stats, const traverse_options topts, const path_visitor &visitor, std::vector< int > &dirfds) noexcept
static void	append_bitstr (std::string &out, fmode_t mask, fmode_t bit, const std::string &bitstr)
template<typename T >
static void	append_bitstr (std::string &out, T mask, T bit, const std::string &bitstr, bool &comma)
static const char	c_backslash ('\\')
static const char	c_slash ('/')
static bool	copy_dir_preserve (const file_stats &src_stats, const int dst_dirfd, const std::string &dst_basename, const copy_options copts) noexcept
static bool	copy_file (const int src_dirfd, const file_stats &src_stats, const int dst_dirfd, const std::string &dst_basename, const copy_options copts) noexcept
static bool	copy_push_mkdir (const file_stats &dst_stats, copy_context_t &ctx) noexcept
static const std::string	s_dot (".")
static const std::string	s_dot_slash ("./")
static const std::string	s_dotdot ("..")
static const std::string	s_slash ("/")
static const std::string	s_slash_dot ("/.")
static const std::string	s_slash_dot_slash ("/./")
static const std::string	s_slash_dotdot ("/..")
static const std::string	s_slash_dotdot_slash ("/../")
static bool	set_effective_uid (::uid_t user_id)

Variables
constexpr const int	_open_dir_flags = O_RDONLY|O_BINARY|O_NOCTTY|O_DIRECTORY

Macro Definition Documentation

O_BINARY

#define O_BINARY   0

Definition at line 53 of file file_util.cpp.

O_NONBLOCK

#define O_NONBLOCK   0

Definition at line 56 of file file_util.cpp.

__posix_fstatat64

#define __posix_fstatat64   ::fstatat64

Definition at line 78 of file file_util.cpp.

__posix_openat64

#define __posix_openat64   ::openat64

Definition at line 79 of file file_util.cpp.

APPEND_BITSTR

#define APPEND_BITSTR	(		U,
			V,
			M
	)		append_bitstr(out, M, U::V, #V, comma);

Definition at line 347 of file file_util.cpp.

FMODEBITS_ENUM

#define FMODEBITS_ENUM	(		X,
			M
	)

Value:

    X(fmode_t,sock,M) \
    X(fmode_t,blk,M) \
    X(fmode_t,chr,M) \
    X(fmode_t,fifo,M) \
    X(fmode_t,dir,M) \
    X(fmode_t,file,M) \
    X(fmode_t,link,M) \
    X(fmode_t,no_access,M) \
    X(fmode_t,not_existing,M)

Definition at line 349 of file file_util.cpp.

FILESTATS_FIELD_ENUM

#define FILESTATS_FIELD_ENUM	(		X,
			M
	)

Value:

    X(file_stats::field_t,type,M) \
    X(file_stats::field_t,mode,M) \
    X(file_stats::field_t,nlink,M) \
    X(file_stats::field_t,uid,M) \
    X(file_stats::field_t,gid,M) \
    X(file_stats::field_t,atime,M) \
    X(file_stats::field_t,mtime,M) \
    X(file_stats::field_t,ctime,M) \
    X(file_stats::field_t,ino,M) \
    X(file_stats::field_t,size,M) \
    X(file_stats::field_t,blocks,M) \
    X(file_stats::field_t,btime,M)

Definition at line 422 of file file_util.cpp.

TRAVERSEEVENT_ENUM

#define TRAVERSEEVENT_ENUM	(		X,
			M
	)

Value:

    X(traverse_event,symlink,M) \
    X(traverse_event,file,M) \
    X(traverse_event,dir_check_entry,M) \
    X(traverse_event,dir_entry,M) \
    X(traverse_event,dir_exit,M) \
    X(traverse_event,dir_symlink,M)

Definition at line 1006 of file file_util.cpp.

TRAVERSEOPTIONS_ENUM

#define TRAVERSEOPTIONS_ENUM	(		X,
			M
	)

Value:

    X(traverse_options,recursive,M) \
    X(traverse_options,follow_symlinks,M) \
    X(traverse_options,lexicographical_order,M) \
    X(traverse_options,dir_check_entry,M) \
    X(traverse_options,dir_entry,M) \
    X(traverse_options,dir_exit,M)

Definition at line 1023 of file file_util.cpp.

COPYOPTIONS_BIT_ENUM

#define COPYOPTIONS_BIT_ENUM	(		X,
			M
	)

Value:

    X(copy_options,recursive,M) \
    X(copy_options,follow_symlinks,M) \
    X(copy_options,into_existing_dir,M) \
    X(copy_options,ignore_symlink_errors,M) \
    X(copy_options,overwrite,M) \
    X(copy_options,preserve_all,M) \
    X(copy_options,sync,M)

Definition at line 1366 of file file_util.cpp.

Typedef Documentation

struct_stat64

typedef struct ::stat64 struct_stat64

Definition at line 77 of file file_util.cpp.

Function Documentation

c_slash()

static const char c_slash ( '/'  )

static

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c_backslash()

static const char c_backslash ( '\\'  )

static

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s_slash()

static const std::string s_slash ( "/"  )

static

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s_slash_dot_slash()

static const std::string s_slash_dot_slash ( "/./"  )

static

s_slash_dot()

static const std::string s_slash_dot ( "/."  )

static

s_dot_slash()

static const std::string s_dot_slash ( "./"  )

static

s_dot()

static const std::string s_dot ( "."  )

static

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s_slash_dotdot_slash()

static const std::string s_slash_dotdot_slash ( "/../"  )

static

s_slash_dotdot()

static const std::string s_slash_dotdot ( "/.."  )

static

s_dotdot()

static const std::string s_dotdot ( ".."  )

static

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append_bitstr() [1/2]

template<typename T >

static void append_bitstr ( std::string &  out, T  mask, T  bit, const std::string &  bitstr, bool &  comma  )

static

Definition at line 340 of file file_util.cpp.

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append_bitstr() [2/2]

static void append_bitstr ( std::string &  out, fmode_t  mask, fmode_t  bit, const std::string &  bitstr  )

static

Definition at line 360 of file file_util.cpp.

_dir_item_basename_compare()

static bool _dir_item_basename_compare ( const dir_item &  a, const dir_item &  b  )

static

Definition at line 1039 of file file_util.cpp.

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_visit()

static bool _visit ( const file_stats &  item_stats, const traverse_options  topts, const path_visitor &  visitor, std::vector< int > &  dirfds  )

staticnoexcept

Definition at line 1043 of file file_util.cpp.

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copy_file()

static bool copy_file ( const int  src_dirfd, const file_stats &  src_stats, const int  dst_dirfd, const std::string &  dst_basename, const copy_options  copts  )

staticnoexcept

Definition at line 1390 of file file_util.cpp.

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copy_push_mkdir()

static bool copy_push_mkdir ( const file_stats &  dst_stats, copy_context_t &  ctx  )

staticnoexcept

Definition at line 1596 of file file_util.cpp.

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copy_dir_preserve()

static bool copy_dir_preserve ( const file_stats &  src_stats, const int  dst_dirfd, const std::string &  dst_basename, const copy_options  copts  )

staticnoexcept

Definition at line 1678 of file file_util.cpp.

set_effective_uid()

static bool set_effective_uid ( ::uid_t  user_id )

static

Definition at line 1936 of file file_util.cpp.

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Variable Documentation

_open_dir_flags

constexpr const int _open_dir_flags = O_RDONLY|O_BINARY|O_NOCTTY|O_DIRECTORY

inlineconstexpr

Definition at line 59 of file file_util.cpp.