summaryrefslogtreecommitdiff
path: root/src/lib/qoscube.c
diff options
context:
space:
mode:
authorSander Vrijders <sander.vrijders@ugent.be>2017-06-21 11:50:19 +0200
committerSander Vrijders <sander.vrijders@ugent.be>2017-06-21 12:21:54 +0200
commit806629e64e8231d0c57a80d3b6584094cd6c89bd (patch)
treee0bbe49e68ba86be325ee23c5879a7611df87c9f /src/lib/qoscube.c
parent22020246ac2b6f03f42dffb48ced19e43b3e9b77 (diff)
downloadouroboros-806629e64e8231d0c57a80d3b6584094cd6c89bd.tar.gz
ouroboros-806629e64e8231d0c57a80d3b6584094cd6c89bd.zip
lib, ipcpd, irmd: Add full-fledged QoS
This adds more Quality of Service support to Ouroboros. One part is the network specific characteristics such as bandwidth, delay, ... The other part is end-to-end QoS like reliability, window based flow control, ...
Diffstat (limited to 'src/lib/qoscube.c')
-rw-r--r--src/lib/qoscube.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/lib/qoscube.c b/src/lib/qoscube.c
new file mode 100644
index 00000000..4ab827a6
--- /dev/null
+++ b/src/lib/qoscube.c
@@ -0,0 +1,76 @@
+/*
+ * Ouroboros - Copyright (C) 2016 - 2017
+ *
+ * Quality of Service cube
+ *
+ * Dimitri Staessens <dimitri.staessens@ugent.be>
+ * Sander Vrijders <sander.vrijders@ugent.be>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * version 2.1 as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <ouroboros/qoscube.h>
+
+#include <string.h>
+
+static struct qos_spec qos_best_effort = {
+ .delay = UINT32_MAX,
+ .bandwidth = UINT64_MAX,
+ .availability = 0,
+ .maximum_interruption = UINT32_MAX
+};
+
+static struct qos_spec qos_video = {
+ .delay = 100,
+ .bandwidth = UINT64_MAX,
+ .availability = 3,
+ .maximum_interruption = 100
+};
+
+static struct qos_spec qos_voice = {
+ .delay = 10,
+ .bandwidth = 100000,
+ .availability = 5,
+ .maximum_interruption = 50
+};
+
+qoscube_t qos_spec_to_cube(qosspec_t qs)
+{
+ if (qs.delay <= qos_voice.delay &&
+ qs.bandwidth <= qos_voice.bandwidth &&
+ qs.availability >= qos_voice.availability &&
+ qs.maximum_interruption <= qos_voice.maximum_interruption)
+ return QOS_CUBE_VOICE;
+ else if (qs.delay <= qos_video.delay &&
+ qs.bandwidth <= qos_video.bandwidth &&
+ qs.availability >= qos_video.availability &&
+ qs.maximum_interruption <= qos_video.maximum_interruption)
+ return QOS_CUBE_VIDEO;
+ else
+ return QOS_CUBE_BE;
+}
+
+qosspec_t qos_cube_to_spec(qoscube_t qc)
+{
+ switch (qc) {
+ case QOS_CUBE_VOICE:
+ return qos_voice;
+ case QOS_CUBE_VIDEO:
+ return qos_video;
+ case QOS_CUBE_BE:
+ default:
+ return qos_best_effort;
+ }
+}