+/** @} */
+
+/**
+ * @defgroup grp_session Session handling
+ *
+ * Starting and handling decoding sessions.
+ *
+ * @{
+ */
+
+static int session_is_valid(struct srd_session *sess)
+{
+
+ if (!sess || sess->session_id < 1)
+ return SRD_ERR;
+
+ return SRD_OK;
+}
+
+/**
+ * Create a decoding session.
+ *
+ * A session holds all decoder instances, their stack relationships and
+ * output callbacks.
+ *
+ * @param sess. A pointer which will hold a pointer to a newly
+ * initialized session on return.
+ *
+ * @return SRD_OK upon success, a (negative) error code otherwise.
+ *
+ * @since 0.3.0
+ */
+SRD_API int srd_session_new(struct srd_session **sess)
+{
+
+ if (!sess) {
+ srd_err("Invalid session pointer.");
+ return SRD_ERR;
+ }
+
+ if (!(*sess = g_try_malloc(sizeof(struct srd_session))))
+ return SRD_ERR_MALLOC;
+ (*sess)->session_id = ++max_session_id;
+ (*sess)->num_probes = (*sess)->unitsize = (*sess)->samplerate = 0;
+ (*sess)->di_list = (*sess)->callbacks = NULL;
+
+ /* Keep a list of all sessions, so we can clean up as needed. */
+ sessions = g_slist_append(sessions, *sess);
+
+ srd_dbg("Created session %d.", (*sess)->session_id);
+
+ return SRD_OK;
+}
+