X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fsession.c;h=0940617c12582076376a1999cd1ccc50e2464d03;hb=965261008009e41e9f89efe416ed1ae5d23aadaf;hp=16fdfffa4bf945872bb3f8004346f76018cae4a6;hpb=00f0016cc361008cd9eb2e52fd2a01f333c0e3cd;p=libsigrok.git

diff --git a/src/session.c b/src/session.c
index 16fdfffa..0940617c 100644
--- a/src/session.c
+++ b/src/session.c
@@ -1071,6 +1071,42 @@ static void datafeed_dump(const struct sr_datafeed_packet *packet)
 	}
 }
 
+/**
+ * Helper to send a meta datafeed package (SR_DF_META) to the session bus.
+ *
+ * @param sdi The device instance to send the package from. Must not be NULL.
+ * @param key The config key to send to the session bus.
+ * @param var The value to send to the session bus.
+ *
+ * @retval SR_OK Success.
+ * @retval SR_ERR_ARG Invalid argument.
+ *
+ * @private
+ */
+SR_PRIV int sr_session_send_meta(const struct sr_dev_inst *sdi,
+		uint32_t key, GVariant *var)
+{
+	struct sr_config *cfg;
+	struct sr_datafeed_packet packet;
+	struct sr_datafeed_meta meta;
+	int ret;
+
+	cfg = sr_config_new(key, var);
+
+	memset(&meta, 0, sizeof(meta));
+
+	packet.type = SR_DF_META;
+	packet.payload = &meta;
+
+	meta.config = g_slist_append(NULL, cfg);
+
+	ret = sr_session_send(sdi, &packet);
+	g_slist_free(meta.config);
+	sr_config_free(cfg);
+
+	return ret;
+}
+
 /**
  * Send a packet to whatever is listening on the datafeed bus.
  *
@@ -1450,8 +1486,7 @@ static void copy_src(struct sr_config *src, struct sr_datafeed_meta *meta_copy)
 	                                   g_memdup(src, sizeof(struct sr_config)));
 }
 
-/** @private */
-SR_PRIV int sr_packet_copy(const struct sr_datafeed_packet *packet,
+SR_API int sr_packet_copy(const struct sr_datafeed_packet *packet,
 		struct sr_datafeed_packet **copy)
 {
 	const struct sr_datafeed_meta *meta;
@@ -1522,7 +1557,7 @@ SR_PRIV int sr_packet_copy(const struct sr_datafeed_packet *packet,
 	return SR_OK;
 }
 
-void sr_packet_free(struct sr_datafeed_packet *packet)
+SR_API void sr_packet_free(struct sr_datafeed_packet *packet)
 {
 	const struct sr_datafeed_meta *meta;
 	const struct sr_datafeed_logic *logic;
@@ -1567,7 +1602,6 @@ void sr_packet_free(struct sr_datafeed_packet *packet)
 		sr_err("Unknown packet type %d", packet->type);
 	}
 	g_free(packet);
-
 }
 
 /** @} */