From 756c09e672a08efd9e728a5cab50a641b022b84c Mon Sep 17 00:00:00 2001
From: Ronny Chevalier <chevalier.ronny@gmail.com>
Date: Fri, 10 Apr 2015 16:53:17 +0200
Subject: core: set_put never returns -EEXIST

When the value is already there it returns 0.

Also add a test to ensure this
---
 src/core/load-fragment.c |  8 ++++----
 src/core/unit.c          | 13 ++-----------
 src/test/test-set.c      | 17 +++++++++++++++++
 3 files changed, 23 insertions(+), 15 deletions(-)

(limited to 'src')

diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index b901d0db52..eada71e227 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -2369,7 +2369,7 @@ int config_parse_syscall_filter(
                                         continue;
 
                                 r = set_put(c->syscall_filter, INT_TO_PTR(id + 1));
-                                if (r == -EEXIST)
+                                if (r == 0)
                                         continue;
                                 if (r < 0)
                                         return log_oom();
@@ -2397,7 +2397,7 @@ int config_parse_syscall_filter(
                  */
                 if (!invert == c->syscall_whitelist)  {
                         r = set_put(c->syscall_filter, INT_TO_PTR(id + 1));
-                        if (r == -EEXIST)
+                        if (r == 0)
                                 continue;
                         if (r < 0)
                                 return log_oom();
@@ -2459,7 +2459,7 @@ int config_parse_syscall_archs(
                 }
 
                 r = set_put(*archs, UINT32_TO_PTR(a + 1));
-                if (r == -EEXIST)
+                if (r == 0)
                         continue;
                 if (r < 0)
                         return log_oom();
@@ -2570,7 +2570,7 @@ int config_parse_address_families(
                  */
                 if (!invert == c->address_families_whitelist)  {
                         r = set_put(c->address_families, INT_TO_PTR(af));
-                        if (r == -EEXIST)
+                        if (r == 0)
                                 continue;
                         if (r < 0)
                                 return log_oom();
diff --git a/src/core/unit.c b/src/core/unit.c
index f9aca0188c..7660d6b367 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -181,12 +181,8 @@ int unit_add_name(Unit *u, const char *text) {
                 return -E2BIG;
 
         r = set_put(u->names, s);
-        if (r < 0) {
-                if (r == -EEXIST)
-                        return 0;
-
+        if (r <= 0)
                 return r;
-        }
 
         r = hashmap_put(u->manager->units, s, u);
         if (r < 0) {
@@ -1161,7 +1157,6 @@ static int unit_add_mount_dependencies(Unit *u) {
 
 static int unit_add_startup_units(Unit *u) {
         CGroupContext *c;
-        int r = 0;
 
         c = unit_get_cgroup_context(u);
         if (!c)
@@ -1171,11 +1166,7 @@ static int unit_add_startup_units(Unit *u) {
             c->startup_blockio_weight == (unsigned long) -1)
                 return 0;
 
-        r = set_put(u->manager->startup_units, u);
-        if (r == -EEXIST)
-                return 0;
-
-        return r;
+        return set_put(u->manager->startup_units, u);
 }
 
 int unit_load(Unit *u) {
diff --git a/src/test/test-set.c b/src/test/test-set.c
index ac292ed680..0ee5ddcc9f 100644
--- a/src/test/test-set.c
+++ b/src/test/test-set.c
@@ -39,8 +39,25 @@ static void test_set_steal_first(void) {
         assert_se(set_isempty(m));
 }
 
+static void test_set_put(void) {
+        _cleanup_set_free_ Set *m = NULL;
+
+        m = set_new(&string_hash_ops);
+        assert_se(m);
+
+        assert_se(set_put(m, (void*) "1") == 1);
+        assert_se(set_put(m, (void*) "22") == 1);
+        assert_se(set_put(m, (void*) "333") == 1);
+        assert_se(set_put(m, (void*) "333") == 0);
+        assert_se(set_remove(m, (void*) "333"));
+        assert_se(set_put(m, (void*) "333") == 1);
+        assert_se(set_put(m, (void*) "333") == 0);
+        assert_se(set_put(m, (void*) "22") == 0);
+}
+
 int main(int argc, const char *argv[]) {
         test_set_steal_first();
+        test_set_put();
 
         return 0;
 }
-- 
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