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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2013-03-24 19:59:00 -0400
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2013-04-05 19:50:57 -0400
commitb92bea5d2a9481de69bb627a7b442a9f58fca43d (patch)
treed43f5e340014d5c3ce723eabb60cd74e3dd20a18 /src/timedate
parent8c62ecf1a99ab4a3f69cb81be38715c504ef5723 (diff)
Use initalization instead of explicit zeroing
Before, we would initialize many fields twice: first by filling the structure with zeros, and then a second time with the real values. We can let the compiler do the job for us, avoiding one copy. A downside of this patch is that text gets slightly bigger. This is because all zero() calls are effectively inlined: $ size build/.libs/systemd text data bss dec hex filename before 897737 107300 2560 1007597 f5fed build/.libs/systemd after 897873 107300 2560 1007733 f6075 build/.libs/systemd … actually less than 1‰. A few asserts that the parameter is not null had to be removed. I don't think this changes much, because first, it is quite unlikely for the assert to fail, and second, an immediate SEGV is almost as good as an assert.
Diffstat (limited to 'src/timedate')
-rw-r--r--src/timedate/timedatectl.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/timedate/timedatectl.c b/src/timedate/timedatectl.c
index bcd935a6c0..8d4e560b93 100644
--- a/src/timedate/timedatectl.c
+++ b/src/timedate/timedatectl.c
@@ -72,9 +72,8 @@ typedef struct StatusInfo {
} StatusInfo;
static bool ntp_synced(void) {
- struct timex txc;
+ struct timex txc = {};
- zero(txc);
if (adjtimex(&txc) < 0)
return false;
@@ -242,7 +241,7 @@ static int show_status(DBusConnection *bus, char **args, unsigned n) {
const char *interface = "";
int r;
DBusMessageIter iter, sub, sub2, sub3;
- StatusInfo info;
+ StatusInfo info = {};
assert(args);
@@ -266,7 +265,6 @@ static int show_status(DBusConnection *bus, char **args, unsigned n) {
return -EIO;
}
- zero(info);
dbus_message_iter_recurse(&iter, &sub);
while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {