Avoid excess threads with g_mutex_trylock

[grits] / src / plugins / elev.c

diff --git a/src/plugins/elev.c b/src/plugins/elev.c
index 6599964cbc1c23aa2a272171138637db824d95ab..9279b08190ca9c6e1ec314077b2e4cc52d26da73 100644 (file)
--- a/src/plugins/elev.c
+++ b/src/plugins/elev.c
@@ -246,7 +246,8 @@ static void _free_tile(GisTile *tile, gpointer _elev)
 static gpointer _update_tiles(gpointer _elev)
 {
        GisPluginElev *elev = _elev;
-       g_mutex_lock(elev->mutex);
+       if (!g_mutex_trylock(elev->mutex))
+               return NULL;
        gdouble lat, lon, elevation;
        gis_viewer_get_location(elev->viewer, &lat, &lon, &elevation);
        gis_tile_update(elev->tiles,