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-rw-r--r--src/libbasic/ordered-set.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/src/libbasic/ordered-set.c b/src/libbasic/ordered-set.c
new file mode 100644
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+++ b/src/libbasic/ordered-set.c
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+/***
+ This file is part of systemd.
+
+ Copyright 2016 Lennart Poettering
+
+ 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 "ordered-set.h"
+#include "strv.h"
+
+int ordered_set_consume(OrderedSet *s, void *p) {
+ int r;
+
+ r = ordered_set_put(s, p);
+ if (r <= 0)
+ free(p);
+
+ return r;
+}
+
+int ordered_set_put_strdup(OrderedSet *s, const char *p) {
+ char *c;
+ int r;
+
+ assert(s);
+ assert(p);
+
+ c = strdup(p);
+ if (!c)
+ return -ENOMEM;
+
+ r = ordered_set_consume(s, c);
+ if (r == -EEXIST)
+ return 0;
+
+ return r;
+}
+
+int ordered_set_put_strdupv(OrderedSet *s, char **l) {
+ int n = 0, r;
+ char **i;
+
+ STRV_FOREACH(i, l) {
+ r = ordered_set_put_strdup(s, *i);
+ if (r < 0)
+ return r;
+
+ n += r;
+ }
+
+ return n;
+}