X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=session.c;h=1cf4170e220a1904ee798cb0161a29e67fcbef90;hb=3520422fc761d50830a45a43cd7d34cca589ad1b;hp=b52c91a374540de5eadd41c2cf030666b08706eb;hpb=2bb311b482d587a7d20c35bf54f084bc0011d72d;p=libsigrok.git

diff --git a/session.c b/session.c
index b52c91a3..1cf4170e 100644
--- a/session.c
+++ b/session.c
@@ -84,6 +84,7 @@ SR_API struct sr_session *sr_session_new(void)
 	}
 
 	session->source_timeout = -1;
+	session->running = FALSE;
 	session->abort_session = FALSE;
 	g_mutex_init(&session->stop_mutex);
 
@@ -148,6 +149,7 @@ SR_API int sr_session_dev_remove_all(void)
  */
 SR_API int sr_session_dev_add(const struct sr_dev_inst *sdi)
 {
+	int ret;
 
 	if (!sdi) {
 		sr_err("%s: sdi was NULL", __func__);
@@ -176,6 +178,15 @@ SR_API int sr_session_dev_add(const struct sr_dev_inst *sdi)
 
 	session->devs = g_slist_append(session->devs, (gpointer)sdi);
 
+	if (session->running) {
+		/* Adding a device to a running session. Start acquisition
+		 * on that device now. */
+		if ((ret = sdi->driver->dev_acquisition_start(sdi,
+						(void *)sdi)) != SR_OK)
+			sr_err("Failed to start acquisition of device in "
+					"running session: %d", ret);
+	}
+
 	return SR_OK;
 }
 
@@ -343,7 +354,7 @@ SR_API int sr_session_start(void)
 		sdi = l->data;
 		if ((ret = sdi->driver->dev_acquisition_start(sdi, sdi)) != SR_OK) {
 			sr_err("%s: could not start an acquisition "
-			       "(%d)", __func__, ret);
+			       "(%s)", __func__, sr_strerror(ret));
 			break;
 		}
 	}
@@ -372,6 +383,7 @@ SR_API int sr_session_run(void)
 		       "cannot be run without devices.", __func__);
 		return SR_ERR_BUG;
 	}
+	session->running = TRUE;
 
 	sr_info("Running.");
 
@@ -399,6 +411,8 @@ SR_API int sr_session_run(void)
  * resources that the session thread will try to use.
  *
  * @return SR_OK upon success, SR_ERR_BUG if no session exists.
+ *
+ * @private
  */
 SR_PRIV int sr_session_stop_sync(void)
 {
@@ -419,6 +433,7 @@ SR_PRIV int sr_session_stop_sync(void)
 				sdi->driver->dev_acquisition_stop(sdi, sdi);
 		}
 	}
+	session->running = FALSE;
 
 	return SR_OK;
 }