X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fsession.c;h=0940617c12582076376a1999cd1ccc50e2464d03;hb=965261008009e41e9f89efe416ed1ae5d23aadaf;hp=0620b222b2cafa37b596d9011be2964d1320887b;hpb=f129014ca4cc1e38749934c5089b8bcb2ab3ea35;p=libsigrok.git

diff --git a/src/session.c b/src/session.c
index 0620b222..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.
  *
@@ -1294,7 +1330,7 @@ SR_PRIV int sr_session_source_add_channel(struct sr_session *session,
 	/* We should be using g_io_create_watch(), but can't without
 	 * changing the driver API, as the callback signature is different.
 	 */
-#ifdef G_OS_WIN32
+#ifdef _WIN32
 	g_io_channel_win32_make_pollfd(channel, events, &pollfd);
 #else
 	pollfd.fd = g_io_channel_unix_get_fd(channel);
@@ -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;
@@ -1489,8 +1524,10 @@ SR_PRIV int sr_packet_copy(const struct sr_datafeed_packet *packet,
 		logic_copy->length = logic->length;
 		logic_copy->unitsize = logic->unitsize;
 		logic_copy->data = g_malloc(logic->length * logic->unitsize);
-		if (!logic_copy->data)
+		if (!logic_copy->data) {
+			g_free(logic_copy);
 			return SR_ERR;
+		}
 		memcpy(logic_copy->data, logic->data, logic->length * logic->unitsize);
 		(*copy)->payload = logic_copy;
 		break;
@@ -1520,7 +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;
@@ -1565,7 +1602,6 @@ void sr_packet_free(struct sr_datafeed_packet *packet)
 		sr_err("Unknown packet type %d", packet->type);
 	}
 	g_free(packet);
-
 }
 
 /** @} */