Added a ring buffer log target to store the last N log messages.
The log target can be used via log alarms and show alarms.
Why? This feature was proposed/requested at
http://openbsc.osmocom.org/trac/wiki/Tasks/ErrorLogTarget
All messages use the same amount of space, prioritizing simplicity.
diff --git a/tests/loggingrb/logging_test.err b/tests/loggingrb/logging_test.err
new file mode 100644
index 0000000..b59d2e8
--- /dev/null
+++ b/tests/loggingrb/logging_test.err
@@ -0,0 +1,3 @@
+[1;31mYou should see this
+[0;m[1;32mYou should see this
+[0;m
\ No newline at end of file