SCTPGraphDialog: Clear internal vectors

Every time the graph is redrawn new items are added to the vectors but
these items are never removed and the used memory increase over time
which for larger captures could be problematic.

Change-Id: I5f029d5f48e215aacf4a69fb7aef348d16df9846
Reviewed-on: https://code.wireshark.org/review/28782
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>

1 files changed, 16 insertions, 0 deletions

diff --git a/ui/qt/sctp_graph_dialog.cpp b/ui/qt/sctp_graph_dialog.cpp
index 4c77445be0..fe7c9cc6e0 100644
--- a/ui/qt/sctp_graph_dialog.cpp
+++ b/ui/qt/sctp_graph_dialog.cpp
@@ -332,6 +332,22 @@ void SCTPGraphDialog::drawGraph()
         minTSN = selected_assoc->min_tsn2;
     }
     ui->sctpPlot->clearGraphs();
+    xt.clear();
+    yt.clear();
+    xs.clear();
+    ys.clear();
+    xg.clear();
+    yg.clear();
+    xd.clear();
+    yd.clear();
+    xn.clear();
+    yn.clear();
+    ft.clear();
+    fs.clear();
+    fg.clear();
+    fd.clear();
+    fn.clear();
+    typeStrings.clear();
     switch (type) {
     case 1: drawSACKGraph();
         drawNRSACKGraph();