From b92bea5d2a9481de69bb627a7b442a9f58fca43d Mon Sep 17 00:00:00 2001 From: Zbigniew Jędrzejewski-Szmek Date: Sun, 24 Mar 2013 19:59:00 -0400 Subject: Use initalization instead of explicit zeroing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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. --- src/login/logind-inhibit.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'src/login/logind-inhibit.c') diff --git a/src/login/logind-inhibit.c b/src/login/logind-inhibit.c index c43ae23acf..e77088364a 100644 --- a/src/login/logind-inhibit.c +++ b/src/login/logind-inhibit.c @@ -292,7 +292,7 @@ int inhibitor_create_fifo(Inhibitor *i) { /* Open reading side */ if (i->fifo_fd < 0) { - struct epoll_event ev; + struct epoll_event ev = {}; i->fifo_fd = open(i->fifo_path, O_RDONLY|O_CLOEXEC|O_NDELAY); if (i->fifo_fd < 0) @@ -302,7 +302,6 @@ int inhibitor_create_fifo(Inhibitor *i) { if (r < 0) return r; - zero(ev); ev.events = 0; ev.data.u32 = FD_OTHER_BASE + i->fifo_fd; -- cgit v1.2.3-54-g00ecf