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-rw-r--r--src/basic/prioq.c12
-rw-r--r--src/libsystemd/sd-bus/sd-bus.c4
-rw-r--r--src/libsystemd/sd-event/sd-event.c30
3 files changed, 13 insertions, 33 deletions
diff --git a/src/basic/prioq.c b/src/basic/prioq.c
index b89888be0e..d55b348c22 100644
--- a/src/basic/prioq.c
+++ b/src/basic/prioq.c
@@ -19,6 +19,16 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+/*
+ * Priority Queue
+ * The prioq object implements a priority queue. That is, it orders objects by
+ * their priority and allows O(1) access to the object with the highest
+ * priority. Insertion and removal are Θ(log n). Optionally, the caller can
+ * provide a pointer to an index which will be kept up-to-date by the prioq.
+ *
+ * The underlying algorithm used in this implementation is a Heap.
+ */
+
#include "util.h"
#include "prioq.h"
@@ -101,7 +111,7 @@ static unsigned shuffle_up(Prioq *q, unsigned idx) {
k = (idx-1)/2;
- if (q->compare_func(q->items[k].data, q->items[idx].data) < 0)
+ if (q->compare_func(q->items[k].data, q->items[idx].data) <= 0)
break;
swap(q, idx, k);
diff --git a/src/libsystemd/sd-bus/sd-bus.c b/src/libsystemd/sd-bus/sd-bus.c
index 3310d3859d..a23f7257fa 100644
--- a/src/libsystemd/sd-bus/sd-bus.c
+++ b/src/libsystemd/sd-bus/sd-bus.c
@@ -3467,7 +3467,7 @@ _public_ int sd_bus_path_encode_many(char **out, const char *path_template, ...)
path_length = strlen(path_template);
- va_start(list, out);
+ va_start(list, path_template);
for (sep = strchr(path_template, '%'); sep; sep = strchr(sep + 1, '%')) {
const char *arg;
char *label;
@@ -3602,7 +3602,7 @@ _public_ int sd_bus_path_decode_many(const char *path, const char *path_template
return 0;
/* copy the labels over to the caller */
- va_start(list, path);
+ va_start(list, path_template);
for (label_pos = labels; label_pos && *label_pos; ++label_pos) {
char **arg;
diff --git a/src/libsystemd/sd-event/sd-event.c b/src/libsystemd/sd-event/sd-event.c
index 48a5219275..1a82c4c940 100644
--- a/src/libsystemd/sd-event/sd-event.c
+++ b/src/libsystemd/sd-event/sd-event.c
@@ -242,12 +242,6 @@ static int pending_prioq_compare(const void *a, const void *b) {
if (x->pending_iteration > y->pending_iteration)
return 1;
- /* Stability for the rest */
- if (x < y)
- return -1;
- if (x > y)
- return 1;
-
return 0;
}
@@ -277,12 +271,6 @@ static int prepare_prioq_compare(const void *a, const void *b) {
if (x->priority > y->priority)
return 1;
- /* Stability for the rest */
- if (x < y)
- return -1;
- if (x > y)
- return 1;
-
return 0;
}
@@ -310,12 +298,6 @@ static int earliest_time_prioq_compare(const void *a, const void *b) {
if (x->time.next > y->time.next)
return 1;
- /* Stability for the rest */
- if (x < y)
- return -1;
- if (x > y)
- return 1;
-
return 0;
}
@@ -343,12 +325,6 @@ static int latest_time_prioq_compare(const void *a, const void *b) {
if (x->time.next + x->time.accuracy > y->time.next + y->time.accuracy)
return 1;
- /* Stability for the rest */
- if (x < y)
- return -1;
- if (x > y)
- return 1;
-
return 0;
}
@@ -370,12 +346,6 @@ static int exit_prioq_compare(const void *a, const void *b) {
if (x->priority > y->priority)
return 1;
- /* Stability for the rest */
- if (x < y)
- return -1;
- if (x > y)
- return 1;
-
return 0;
}