Add missed z_sample_* methods (#518)

include/zenoh-pico/api/primitives.h

@@ -1429,6 +1429,39 @@ z_sample_kind_t z_sample_kind(const z_loaned_sample_t *sample);
  */
 z_qos_t z_sample_qos(const z_loaned_sample_t *sample);
 
+/**
+ * Got sample qos congestion control value.
+ *
+ * Parameters:
+ *   sample: Pointer to a :c:type:`z_loaned_sample_t` to get the congestion control from.
+ *
+ * Return:
+ *   The congestion control wrapped as a :c:type:`z_congestion_control_t`.
+ */
+z_congestion_control_t z_sample_congestion_control(const z_loaned_sample_t *sample);
+
+/**
+ * Got whether sample qos express flag was set or not.
+ *
+ * Parameters:
+ *   sample: Pointer to a :c:type:`z_loaned_sample_t` to get the express flag from.
+ *
+ * Return:
+ *   The express flag value.
+ */
+bool z_sample_express(const z_loaned_sample_t *sample);
+
+/**
+ *
+ * Parameters:
+ *   sample: Pointer to a :c:type:`z_loaned_sample_t` to get the qos from.
+ *
+ * Return:
+ *   The qos wrapped as a :c:type:`z_qos_t`.
+ * Got sample qos priority value.
+ */
+z_priority_t z_sample_priority(const z_loaned_sample_t *sample);
+
 /**
  * Gets the attachment of a sample by aliasing it.
  *

src/api/api.c

@@ -922,6 +922,11 @@ z_timestamp_t z_sample_timestamp(const z_loaned_sample_t *sample) { return sampl
 const z_loaned_encoding_t *z_sample_encoding(const z_loaned_sample_t *sample) { return &sample->encoding; }
 z_qos_t z_sample_qos(const z_loaned_sample_t *sample) { return sample->qos; }
 const z_loaned_bytes_t *z_sample_attachment(const z_loaned_sample_t *sample) { return &sample->attachment; }
+z_congestion_control_t z_sample_congestion_control(const z_loaned_sample_t *sample) {
+    return _z_n_qos_get_congestion_control(sample->qos);
+}
+bool z_sample_express(const z_loaned_sample_t *sample) { return _z_n_qos_get_express(sample->qos); }
+z_priority_t z_sample_priority(const z_loaned_sample_t *sample) { return _z_n_qos_get_priority(sample->qos); }
 
 const z_loaned_bytes_t *z_reply_err_payload(const z_loaned_reply_err_t *reply_err) { return &reply_err->payload; }
 const z_loaned_encoding_t *z_reply_err_encoding(const z_loaned_reply_err_t *reply_err) { return &reply_err->encoding; }