Merge pull request #1439 from poettering/CODING_STYLE

Coding style

CODING_STYLE

@@ -321,3 +321,20 @@
   parse values the same way on all architectures and cannot expose
   off_t values over D-Bus. To avoid any confusion regarding conversion
   and ABIs, always use simply uint64_t directly.
+
+- Commit message subject lines should be prefixed with an appropriate
+  component name of some kind. For example "journal: ", "nspawn: " and
+  so on.
+
+- Do not use "Signed-Off-By:" in your commit messages. That's a kernel
+  thing we don't do in the systemd project.
+
+- Avoid leaving long-running child processes around, i.e. fork()s that
+  are not followed quickly by an execv() in the child. Resource
+  management is unclear in this case, and memory CoW will result in
+  penalties in the parent much much later on.
+
+- Don't block execution for arbitrary amounts of time using usleep()
+  or a similar call, unless you really know what you do. Just "giving
+  something some time", or so is a lazy excuse. Always wait for the
+  proper event, instead of doing time-based poll loops.

src/basic/terminal-util.c

@@ -607,27 +607,6 @@ int vt_disallocate(const char *name) {
         return 0;
 }
 
-void warn_melody(void) {
-        _cleanup_close_ int fd = -1;
-
-        fd = open("/dev/console", O_WRONLY|O_CLOEXEC|O_NOCTTY);
-        if (fd < 0)
-                return;
-
-        /* Yeah, this is synchronous. Kinda sucks. But well... */
-
-        (void) ioctl(fd, KIOCSOUND, (int)(1193180/440));
-        usleep(125*USEC_PER_MSEC);
-
-        (void) ioctl(fd, KIOCSOUND, (int)(1193180/220));
-        usleep(125*USEC_PER_MSEC);
-
-        (void) ioctl(fd, KIOCSOUND, (int)(1193180/220));
-        usleep(125*USEC_PER_MSEC);
-
-        (void) ioctl(fd, KIOCSOUND, 0);
-}
-
 int make_console_stdio(void) {
         int fd, r;
 

src/basic/terminal-util.h

@@ -67,8 +67,6 @@ bool tty_is_console(const char *tty) _pure_;
 int vtnr_from_tty(const char *tty);
 const char *default_term_for_tty(const char *tty);
 
-void warn_melody(void);
-
 int make_stdio(int fd);
 int make_null_stdio(void);
 int make_console_stdio(void);

src/login/logind-action.c

@@ -147,7 +147,6 @@ int manager_handle_action(
                           offending->uid, strna(u),
                           offending->pid, strna(comm));
 
-                warn_melody();
                 return -EPERM;
         }