add setter for partition QoS for a single name

This adds dds_qset_partition1 as a convenience function to set the
partition QoS to a single name.

Signed-off-by: Erik Boasson <eb@ilities.com>

src/core/ddsc/include/dds/ddsc/dds_public_qos.h

@@ -391,7 +391,7 @@ dds_qset_time_based_filter (
  *
  * @param[in,out] qos - Pointer to a dds_qos_t structure that will store the policy
  * @param[in] n - Number of partitions stored in ps
- * @param[in[ ps - Pointer to string(s) storing partition name(s)
+ * @param[in] ps - Pointer to string(s) storing partition name(s)
  */
 DDS_EXPORT void
 dds_qset_partition (
@@ -399,6 +399,18 @@ dds_qset_partition (
   uint32_t n,
   const char ** __restrict ps);
 
+/**
+ * @brief Convenience function to set the partition policy of a qos structure to a
+ * single name.  Name may be a null pointer.
+ *
+ * @param[in,out] qos - Pointer to a dds_qos_t structure that will store the policy
+ * @param[in] name - Pointer to the name
+ */
+DDS_EXPORT void
+dds_qset_partition1 (
+  dds_qos_t * __restrict qos,
+  const char * __restrict name);
+
 /**
  * @brief Set the reliability policy of a qos structure
  *

src/core/ddsc/src/dds_qos.c

@@ -558,6 +558,14 @@ void dds_qset_partition
     qos->present |= QP_PARTITION;
 }
 
+void dds_qset_partition1 (dds_qos_t * __restrict qos, const char * __restrict name)
+{
+  if (name == NULL)
+    dds_qset_partition (qos, 0, NULL);
+  else
+    dds_qset_partition (qos, 1, (const char **) &name);
+}
+
 void dds_qset_reliability
 (
     dds_qos_t * __restrict qos,