Introduce udev object cleanup functions

src/shared/fdset.h

@@ -49,8 +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)))
 
-static inline void fdset_freep(FDSet **fds) {
-        if (*fds)
-                fdset_free(*fds);
-}
+define_trivial_cleanup_func(FDSet*, fdset_free)
 #define _cleanup_fdset_free_ _cleanup_(fdset_freep)

src/shared/install.c

@@ -44,10 +44,8 @@ typedef struct {
         Hashmap *have_installed;
 } InstallContext;
 
-#define _cleanup_lookup_paths_free_ \
-        __attribute__((cleanup(lookup_paths_free)))
-#define _cleanup_install_context_done_ \
-        __attribute__((cleanup(install_context_done)))
+#define _cleanup_lookup_paths_free_ _cleanup_(lookup_paths_free)
+#define _cleanup_install_context_done_ _cleanup_(install_context_done)
 
 static int lookup_paths_init_from_scope(LookupPaths *paths, UnitFileScope scope) {
         assert(paths);

src/shared/set.h

@@ -28,19 +28,13 @@
  * for each set use. */
 
 #include "hashmap.h"
+#include "util.h"
 
 typedef struct Set Set;
 
 Set *set_new(hash_func_t hash_func, compare_func_t compare_func);
 void set_free(Set* s);
-static inline void set_freep(Set **s) {
-        set_free(*s);
-}
-
 void set_free_free(Set *s);
-static inline void set_free_freep(Set **s) {
-        set_free_free(*s);
-}
 
 Set* set_copy(Set *s);
 int set_ensure_allocated(Set **s, hash_func_t hash_func, compare_func_t compare_func);
@@ -79,5 +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 _cleanup_set_free_ _cleanup_(set_freep)
 #define _cleanup_set_free_free_ _cleanup_(set_free_freep)

src/shared/strv.h

@@ -24,16 +24,13 @@
 #include <stdarg.h>
 #include <stdbool.h>
 
-#include "macro.h"
+#include "util.h"
 
 char *strv_find(char **l, const char *name) _pure_;
 char *strv_find_prefix(char **l, const char *name) _pure_;
 
 void strv_free(char **l);
-static inline void strv_freep(char ***l) {
-        strv_free(*l);
-}
-
+define_trivial_cleanup_func(char**, strv_free)
 #define _cleanup_strv_free_ _cleanup_(strv_freep)
 
 char **strv_copy(char * const *l);

src/shared/udev-util.h

@@ -0,0 +1,37 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2013 Zbigniew Jędrzejewski-Szmek
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#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 _cleanup_udev_unref_ _cleanup_(udev_unrefp)
+#define _cleanup_udev_device_unref_ _cleanup_(udev_device_unrefp)
+#define _cleanup_udev_enumerate_unref_ _cleanup_(udev_enumerate_unrefp)
+#define _cleanup_udev_event_unref_ _cleanup_(udev_event_unrefp)
+#define _cleanup_udev_rules_unref_ _cleanup_(udev_rules_unrefp)

src/shared/util.h

@@ -556,42 +556,33 @@ static inline void freep(void *p) {
         free(*(void**) p);
 }
 
-static inline void fclosep(FILE **f) {
-        if (*f)
-                fclose(*f);
-}
-
-static inline void pclosep(FILE **f) {
-        if (*f)
-                pclose(*f);
-}
+#define define_trivial_cleanup_func(type, func) \
+        static inline void func##p(type *p) {   \
+        if (*p)                                 \
+                func(*p);                       \
+        }                                       \
 
 static inline void closep(int *fd) {
         if (*fd >= 0)
                 close_nointr_nofail(*fd);
 }
 
-static inline void closedirp(DIR **d) {
-        if (*d)
-                closedir(*d);
-}
-
 static inline void umaskp(mode_t *u) {
         umask(*u);
 }
 
-static inline void endmntentp(FILE **f) {
-        if (*f)
-                endmntent(*f);
-}
+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_fclose_ _cleanup_(fclosep)
-#define _cleanup_pclose_ _cleanup_(pclosep)
 #define _cleanup_close_ _cleanup_(closep)
-#define _cleanup_closedir_ _cleanup_(closedirp)
 #define _cleanup_umask_ _cleanup_(umaskp)
 #define _cleanup_globfree_ _cleanup_(globfree)
+#define _cleanup_fclose_ _cleanup_(fclosep)
+#define _cleanup_pclose_ _cleanup_(pclosep)
+#define _cleanup_closedir_ _cleanup_(closedirp)
 #define _cleanup_endmntent_ _cleanup_(endmntentp)
 
 _malloc_  _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) {