util: allow trailing semicolons on define_trivial_cleanup_func lines

Emacs C indenting really gets confused by these lines if they carry no
trailing semicolon, hence let's make this nicer for good old emacs. The
other macros which define functions already do this too, so let's copy
the scheme here.

Also, let's use an uppercase name for the macro. So far our rough rule
was that macros that are totally not function-like (like this ones,
which define a function) are uppercase. (Well, admittedly it is a rough
rule only, for example function and variable decorators are all
lower-case SINCE THE CONSTANT YELLING IN THE SOURCES WOULD SUCK, and
also they at least got underscore prefixes.) Also, the macros that
define functions that we already have are all uppercase, so let's do the
same here...

5 files changed, 19 insertions, 18 deletions

diff --git a/src/shared/fdset.h b/src/shared/fdset.h
index 6277e464d8..907acd76dd 100644
--- a/src/shared/fdset.h
+++ b/src/shared/fdset.h
@@ -49,5 +49,5 @@ int fdset_iterate(FDSet *s, Iterator *i);
 #define FDSET_FOREACH(fd, fds, i) \
         for ((i) = ITERATOR_FIRST, (fd) = fdset_iterate((fds), &(i)); (fd) >= 0; (fd) = fdset_iterate((fds), &(i)))
 
-define_trivial_cleanup_func(FDSet*, fdset_free)
+DEFINE_TRIVIAL_CLEANUP_FUNC(FDSet*, fdset_free);
 #define _cleanup_fdset_free_ _cleanup_(fdset_freep)
diff --git a/src/shared/set.h b/src/shared/set.h
index a291470c19..5612478d4e 100644
--- a/src/shared/set.h
+++ b/src/shared/set.h
@@ -73,7 +73,7 @@ char **set_get_strv(Set *s);
 #define SET_FOREACH_BACKWARDS(e, s, i) \
         for ((i) = ITERATOR_LAST, (e) = set_iterate_backwards((s), &(i)); (e); (e) = set_iterate_backwards((s), &(i)))
 
-define_trivial_cleanup_func(Set*, set_free)
-define_trivial_cleanup_func(Set*, set_free_free)
+DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, set_free);
+DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, set_free_free);
 #define _cleanup_set_free_ _cleanup_(set_freep)
 #define _cleanup_set_free_free_ _cleanup_(set_free_freep)
diff --git a/src/shared/strv.h b/src/shared/strv.h
index 4d117f82c5..f6fb033a8c 100644
--- a/src/shared/strv.h
+++ b/src/shared/strv.h
@@ -30,7 +30,7 @@ char *strv_find(char **l, const char *name) _pure_;
 char *strv_find_prefix(char **l, const char *name) _pure_;
 
 void strv_free(char **l);
-define_trivial_cleanup_func(char**, strv_free)
+DEFINE_TRIVIAL_CLEANUP_FUNC(char**, strv_free);
 #define _cleanup_strv_free_ _cleanup_(strv_freep)
 
 char **strv_copy(char * const *l);
diff --git a/src/shared/udev-util.h b/src/shared/udev-util.h
index bff8f5fbf7..27677af876 100644
--- a/src/shared/udev-util.h
+++ b/src/shared/udev-util.h
@@ -24,11 +24,11 @@
 #include "udev.h"
 #include "util.h"
 
-define_trivial_cleanup_func(struct udev*, udev_unref)
-define_trivial_cleanup_func(struct udev_device*, udev_device_unref)
-define_trivial_cleanup_func(struct udev_enumerate*, udev_enumerate_unref)
-define_trivial_cleanup_func(struct udev_event*, udev_event_unref)
-define_trivial_cleanup_func(struct udev_rules*, udev_rules_unref)
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev*, udev_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_device*, udev_device_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_enumerate*, udev_enumerate_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_event*, udev_event_unref);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct udev_rules*, udev_rules_unref);
 
 #define _cleanup_udev_unref_ _cleanup_(udev_unrefp)
 #define _cleanup_udev_device_unref_ _cleanup_(udev_device_unrefp)
diff --git a/src/shared/util.h b/src/shared/util.h
index 99a138cd8e..86b21435b2 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -556,11 +556,12 @@ static inline void freep(void *p) {
         free(*(void**) p);
 }
 
-#define define_trivial_cleanup_func(type, func) \
-        static inline void func##p(type *p) {   \
-        if (*p)                                 \
-                func(*p);                       \
-        }                                       \
+#define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func)                 \
+        static inline void func##p(type *p) {                   \
+                if (*p)                                         \
+                        func(*p);                               \
+        }                                                       \
+        struct __useless_struct_to_allow_trailing_semicolon__
 
 static inline void closep(int *fd) {
         if (*fd >= 0)
@@ -571,10 +572,10 @@ static inline void umaskp(mode_t *u) {
         umask(*u);
 }
 
-define_trivial_cleanup_func(FILE*, fclose)
-define_trivial_cleanup_func(FILE*, pclose)
-define_trivial_cleanup_func(DIR*, closedir)
-define_trivial_cleanup_func(FILE*, endmntent)
+DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, fclose);
+DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, pclose);
+DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir);
+DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent);
 
 #define _cleanup_free_ _cleanup_(freep)
 #define _cleanup_close_ _cleanup_(closep)