When content of a large directory is being sorted by file names, a
significant amount of CPU time is spent in str_utf8_normalize() that is
called from str_utf8_create_key_gen().
For example, /usr/bin/ contains 5437 files on my Archlinux box. Running
mc /usr/bin/ /usr/bin/ takes approx. 75 000 000 CPU instructions to sort
file names, or 25% of total program run time. From these 75 000 000
instructions, 42 500 000 instruction are spent in str_utf8_normalize().
str_utf8_normalize() uses g_utf8_normalize() to do the work.
g_utf8_normalize() is a heavyweight function, that converts UTF-8 into
UCS-4, does the normalization and then converts UCS-4 back into UTF-8.
Since file names are composed of ASCII characters in most cases, we can
speed up str_utf8_normalize() by checking if the heavyweight Unicode
normalization is actually needed. Normalization of ASCII string is
no-op, so it is effectively "normalized" by just strdup().
With this patch, running mc /usr/bin/ /usr/bin/ requires just 37 000 000
instructions to sort the file names (down from 75 000 000) and 4 500 000
instuctions to do str_utf8_normalize() (down from 42 500 000).
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
This patch was supposed to get committed as part of #3571 but this never
happened. We commit it now as we depend on its functionality for the next
commit.
Signed-off-by: Mooffie <mooffie@gmail.com>
Found by GCC 6.2.0.
color-internal.c:186:33: error: format '%X' expects argument of type 'unsigned int', but argument 3 has type 'int' [-Werror=format=]
Signed-off-by: Andreas Mohr <and@gmx.li>
MC truncates timestamps during file copy and drops sub-second precision.
Make use of utimensat(), introduced in Linux kernel 2.6.22 (and since
2.6.26 compatible with POSIX-1.2008).
Signed-off-by: Andrey Gursky <andrey.gursky@e-mail.ua>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
We also improve the documentation of vfs_parse_filedate(), which does the
actual work.
Note that in the user-facing documentation (extfs/helpers/README) there are
two things we prefer *not* to mention about vfs_parse_filedate's ability:
* Accepting the format "MM-DD-YY hh:mm[:ss]", as this two-digit year is
more likely to confuse readers of such dates.
* Accepting '/', instead of '-', as the separator in MM-DD-YYYY. (Considering
that some scripts do use '/', maybe we should mention it?)
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
This message is sent to widgets'owner when widget's focus state is
changed.
Find file dialog: fix initial draw of ignore directories input line.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
scanf("%x") knows to eat up this prefix[1][2], so we don't need to do this
ourselves.
[1] K&R's "The C Programming Language" documents "%x" as "hexadecimal
integer (with or without leading 0x or 0X)"
[2] http://pubs.opengroup.org/onlinepubs/9699919799/functions/scanf.html
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Note: considering that this feature hasn't worked, we may consider removing it
entirely or partially (e.g., escaping) in order to simplify the code, as nobody
has grown used to it. It seems, based on the "hex mode" mentioned in the manual
page, that in the past there was no "normal" search in hex mode, and quoted
strings were the only easy way to look for text. This is no longer the case
nowadays.
Note: the characters in the quoted string are copied out as-is to the regexp.
No regexp-quoting is currently done. We may want to revisit this issue when we
work on ticket #3695.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
sscanf() returns EOF when it reaches the end of the string. Our code
erroneously interprets this as if a number was read. The fix: we test for an
explicit '1'.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Compiler with my_exit() 'noreturn' knowledge will complain about
never reachable break statement.
Reported by clang compiler.
(Maybe there is a better code sequence)
Signed-off-by: Andreas Mohr <and@gmx.li>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
utilvfs.c: In function 'vfs_die':
utilvfs.c:354:1: warning: function might be candidate for attribute 'noreturn' [-Wsuggest-attribute=noreturn]
vfs_die (const char *m)
^~~~~~~
Signed-off-by: Andreas Mohr <and@gmx.li>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
utilunix.c:360:1: error: function might be candidate for attribute 'noreturn' [-Wsuggest-attribute=noreturn]
Signed-off-by: Andreas Mohr <and@gmx.li>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
serialize.c: In function 'mc_serialize_str':
serialize.c:116:34: error: format '%zd' expects argument of type 'signed size_t', but argument 3 has type 'size_t {aka long unsigned int}' [-Werror=format=]
return g_strdup_printf ("%c%zd" SRLZ_DELIM_S "%s", prefix, strlen (data), data);
^
serialize.c:130:19: error: format '%zd' expects argument of type 'signed size_t', but argument 5 has type 'size_t {aka long unsigned int}' [-Werror=format=]
#define FUNC_NAME "mc_serialize_str()"
^
serialize.c:175:22: note: in expansion of macro 'FUNC_NAME'
FUNC_NAME
^~~~~~~~~
serialize.c:130:19: error: format '%zd' expects argument of type 'signed size_t', but argument 6 has type 'size_t {aka long unsigned int}' [-Werror=format=]
#define FUNC_NAME "mc_serialize_str()"
^
serialize.c:175:22: note: in expansion of macro 'FUNC_NAME'
FUNC_NAME
^~~~~~~~~
serialize.c: In function 'mc_deserialize_config':
serialize.c:267:19: error: format '%zd' expects argument of type 'signed size_t', but argument 3 has type 'size_t {aka long unsigned int}' [-Werror=format=]
#define FUNC_NAME "mc_deserialize_config()"
^
serialize.c:269:35: note: in expansion of macro 'FUNC_NAME'
prepend_error_message (error, FUNC_NAME " at %zd", current_position + 1); \
^~~~~~~~~
serialize.c:301:17: note: in expansion of macro 'prepend_error_and_exit'
prepend_error_and_exit ();
^~~~~~~~~~~~~~~~~~~~~~
serialize.c:267:19: error: format '%zd' expects argument of type 'signed size_t', but argument 3 has type 'size_t {aka long unsigned int}' [-Werror=format=]
#define FUNC_NAME "mc_deserialize_config()"
^
serialize.c:269:35: note: in expansion of macro 'FUNC_NAME'
prepend_error_message (error, FUNC_NAME " at %zd", current_position + 1); \
^~~~~~~~~
serialize.c:313:17: note: in expansion of macro 'prepend_error_and_exit'
prepend_error_and_exit ();
^~~~~~~~~~~~~~~~~~~~~~
serialize.c:267:19: error: format '%zd' expects argument of type 'signed size_t', but argument 3 has type 'size_t {aka long unsigned int}' [-Werror=format=]
#define FUNC_NAME "mc_deserialize_config()"
^
serialize.c:269:35: note: in expansion of macro 'FUNC_NAME'
prepend_error_message (error, FUNC_NAME " at %zd", current_position + 1); \
^~~~~~~~~
serialize.c:325:17: note: in expansion of macro 'prepend_error_and_exit'
prepend_error_and_exit ();
^~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Andreas Mohr <and@gmx.li>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
hex.c: In function 'mc_search__hex_translate_to_regex':
hex.c:79:39: error: format '%x' expects argument of type 'unsigned int *', but argument 3 has type 'int *' [-Wformat=]
if (sscanf (tmp_str + loop, "%x%n", &val, &ptr))
^
Signed-off-by: Andreas Mohr <and@gmx.li>
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Additionally always put a space between number and unit which is
required by the norms.
It is important to note that really small buffers have to be bigger than it
appears because they store bytes and non-Latin scripts need more than one byte
with UTF-8 to encode them, e.g., the string "1023 МиБ" in Russian requires
11 bytes + null terminator.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
size_trunc() has been aligned to properly use either IEC or SI prefixes with
the unit B (byte). Additionally always put a space between number and unit
which is required by the norms.
Obsolete gettext message ids have been removed and some cleaned up for
duplicate words or leading spaces.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
(widget_replace): if new widget cannot take focus, move focus to other widget
before widget replacement.
In our case, the focused file panel is replaced by Info one. Info panel
a) isn't selectable (it never takes focus) and b) uses CWD of current
panel. Therefore focus must be moved to other file panel to make it
current and correctly set up it's CWD before first draw of Info panel.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Add new WDialog APIs:
* dlg_set_current_widget_next
* dlg_set_current_widget_prev
* dlg_get_widget_next_of
* dlg_get_widget_prev_of
and use them:
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
Send MSG_DRAW message immediately after MSG_FOCUS/MSG_UNFOCUS.
Thus, the MSG_DRAW message handler is the only place where widget
should be drawn. Widget should not draw itself in other message
handlers.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
If menu is not active, it is not selectable also in order to disallow
select and focus the inactive menu.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
To ensure that nobody uses the 'homedir' variable in the future without
initializing it first, we make it private to the function, thereby effectively
removing it.
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
We can conclude, by reading their GLib source[1], by their documentation,
and by looking at how popular programs use them[2], that the functions
g_get_user_{config,cache,data}_dir() don't return a NULL or empty string.
So the handling of this case can go.
[1] https://git.gnome.org/browse/glib/tree/glib/gutils.c
[2] E.g., google "g_get_user_data_dir".
Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
