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-rw-r--r--lib/posix_mq.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/posix_mq.rb b/lib/posix_mq.rb
index f232baa..b13bfda 100644
--- a/lib/posix_mq.rb
+++ b/lib/posix_mq.rb
@@ -1,4 +1,9 @@
 # -*- encoding: binary -*-
+#
+# This class represents an POSIX message queue descriptor (mqd_t)
+# object.  It matches the C API for POSIX messages queues closely.
+#
+# See the link:README for examples on how to use it.
 class POSIX_MQ
 
   # version of POSIX_MQ, currently 0.6.0