shaba/systemd-stable
1
1
Fork 0
mirror of https://github.com/systemd/systemd-stable.git synced 2024-11-01 00:51:08 +03:00
Code

libudev: util - optimize path_encode()

Browse Source 
Since we already know the length, use memcpy() instead.
Measured 2% _user_ cpu time reduction on EeePC coldplug.

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
This commit is contained in:
Alan Jenkins 2008-10-21 11:12:57 +01:00 committed by Kay Sievers
parent b29a5e4ab9
commit fa0e955a93
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
udev/lib/libudev-util.c
View File

@ -114,7 +114,6 @@ size_t util_path_encode(char *s, size_t len)
char t[(len * 3)+1];
size_t i, j;
t[0] = '\0';
for (i = 0, j = 0; s[i] != '\0'; i++) {
if (s[i] == '/') {
memcpy(&t[j], "\\x2f", 4);
@ -127,8 +126,11 @@ size_t util_path_encode(char *s, size_t len)
j++;
}
}
t[j] = '\0';
strncpy(s, t, len);
if (len == 0)
return j;
i = (j < len - 1) ? j : len - 1;
memcpy(s, t, i);
s[i] = '\0';
return j;
}