1 files changed, 23 insertions, 0 deletions
diff --git a/src/lib/util/unittests/interprocess_util.h b/src/lib/util/unittests/interprocess_util.h
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+++ b/src/lib/util/unittests/interprocess_util.h
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+// Copyright (C) 2013-2015 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+namespace isc {
+namespace util {
+namespace unittests {
+/// \brief A helper utility for a simple synchronization with another process.
+///
+/// It waits for incoming data on a given file descriptor up to 5 seconds
+/// (arbitrary choice), read one byte data, and return it to the caller.
+/// On any failure it returns 0xff (255), so the sender process should use
+/// a different value to pass.
+unsigned char parentReadState(int fd);
+}
+}
+}
+
+// Local Variables:
+// mode: c++
+// End: