sysctl: move hashmap allocation out of main function

This allocation is a low level detail, and it seems nicer to keep it
out of run().

diff --git a/src/sysctl/sysctl.c b/src/sysctl/sysctl.c
index 56d86d8eba31e7d382f21614db4724206c14743b..1ced48b4db45fbdad5caa2422f57f48bbad64b37 100644 (file)
--- a/src/sysctl/sysctl.c
+++ b/src/sysctl/sysctl.c
@@ -122,7 +122,7 @@ static bool test_prefix(const char *p) {
         return false;
 }
 
-static int parse_file(OrderedHashmap *sysctl_options, const char *path, bool ignore_enoent) {
+static int parse_file(OrderedHashmap **sysctl_options, const char *path, bool ignore_enoent) {
         _cleanup_fclose_ FILE *f = NULL;
         unsigned c = 0;
         int r;
@@ -183,7 +183,10 @@ static int parse_file(OrderedHashmap *sysctl_options, const char *path, bool ign
                 if (!test_prefix(p))
                         continue;
 
-                existing = ordered_hashmap_get(sysctl_options, p);
+                if (ordered_hashmap_ensure_allocated(sysctl_options, &option_hash_ops) < 0)
+                        return log_oom();
+
+                existing = ordered_hashmap_get(*sysctl_options, p);
                 if (existing) {
                         if (streq(value, existing->value)) {
                                 existing->ignore_failure = existing->ignore_failure || ignore_failure;
@@ -191,14 +194,14 @@ static int parse_file(OrderedHashmap *sysctl_options, const char *path, bool ign
                         }
 
                         log_debug("Overwriting earlier assignment of %s at '%s:%u'.", p, path, c);
-                        option_free(ordered_hashmap_remove(sysctl_options, p));
+                        option_free(ordered_hashmap_remove(*sysctl_options, p));
                 }
 
                 new_option = option_new(p, value, ignore_failure);
                 if (!new_option)
                         return log_oom();
 
-                k = ordered_hashmap_put(sysctl_options, new_option->key, new_option);
+                k = ordered_hashmap_put(*sysctl_options, new_option->key, new_option);
                 if (k < 0)
                         return log_error_errno(k, "Failed to add sysctl variable %s to hashmap: %m", p);
 
@@ -320,17 +323,13 @@ static int run(int argc, char *argv[]) {
 
         umask(0022);
 
-        sysctl_options = ordered_hashmap_new(&option_hash_ops);
-        if (!sysctl_options)
-                return log_oom();
-
         if (argc > optind) {
                 int i;
 
                 r = 0;
 
                 for (i = optind; i < argc; i++) {
-                        k = parse_file(sysctl_options, argv[i], false);
+                        k = parse_file(&sysctl_options, argv[i], false);
                         if (k < 0 && r == 0)
                                 r = k;
                 }
@@ -349,7 +348,7 @@ static int run(int argc, char *argv[]) {
                 }
 
                 STRV_FOREACH(f, files) {
-                        k = parse_file(sysctl_options, *f, true);
+                        k = parse_file(&sysctl_options, *f, true);
                         if (k < 0 && r == 0)
                                 r = k;
                 }