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diff --git a/src/common/fdset_kqueue.h b/src/common/fdset_kqueue.h
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+/*  Copyright (C) 2011 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/*!
+ * \file fdset_kqueue.h
+ *
+ * \author Marek Vavrusa <marek.vavrusa@nic.cz>
+ *
+ * \brief Wrapper for kqueue I/O multiplexing.
+ *
+ * \addtogroup common_lib
+ * @{
+ */
+
+#ifndef _KNOTD_FDSET_KQUEUE_H_
+#define _KNOTD_FDSET_KQUEUE_H_
+
+#include "fdset.h"
+
+/*!
+ * \brief Create new fdset.
+ *
+ * BSD kqueue() backend.
+ *
+ * \retval Pointer to initialized FDSET structure if successful.
+ * \retval NULL on error.
+ */
+fdset_t *fdset_kqueue_new();
+
+/*!
+ * \brief Destroy FDSET.
+ *
+ * \retval 0 if successful.
+ * \retval -1 on error.
+ */
+int fdset_kqueue_destroy(fdset_t * fdset);
+
+/*!
+ * \brief Add file descriptor to watched set.
+ *
+ * \param fdset Target set.
+ * \param fd Added file descriptor.
+ * \param events Mask of watched events.
+ *
+ * \retval 0 if successful.
+ * \retval -1 on errors.
+ */
+int fdset_kqueue_add(fdset_t *fdset, int fd, int events);
+
+/*!
+ * \brief Remove file descriptor from watched set.
+ *
+ * \param fdset Target set.
+ * \param fd File descriptor to be removed.
+ *
+ * \retval 0 if successful.
+ * \retval -1 on errors.
+ */
+int fdset_kqueue_remove(fdset_t *fdset, int fd);
+
+/*!
+ * \brief Poll set for new events.
+ *
+ * \param fdset Target set.
+ *
+ * \retval Number of events if successful.
+ * \retval -1 on errors.
+ *
+ * \todo Timeout.
+ */
+int fdset_kqueue_wait(fdset_t *fdset);
+
+/*!
+ * \brief Set event iterator to the beginning of last polled events.
+ *
+ * \param fdset Target set.
+ * \param it Event iterator.
+ *
+ * \retval 0 if successful.
+ * \retval -1 on errors.
+ */
+int fdset_kqueue_begin(fdset_t *fdset, fdset_it_t *it);
+
+/*!
+ * \brief Set event iterator to the end of last polled events.
+ *
+ * \param fdset Target set.
+ * \param it Event iterator.
+ *
+ * \retval 0 if successful.
+ * \retval -1 on errors.
+ */
+int fdset_kqueue_end(fdset_t *fdset, fdset_it_t *it);
+
+/*!
+ * \brief Set event iterator to the next event.
+ *
+ * Event iterator fd will be set to -1 if next event doesn't exist.
+ *
+ * \param fdset Target set.
+ * \param it Event iterator.
+ *
+ * \retval 0 if successful.
+ * \retval -1 on errors.
+ */
+int fdset_kqueue_next(fdset_t *fdset, fdset_it_t *it);
+
+/*!
+ * \brief Returned name of kqueue method.
+ *
+ * \retval Name if successful.
+ * \retval NULL if no method was loaded (shouldn't happen).
+ */
+const char* fdset_kqueue_method();
+
+/*! \brief Exported API. */
+extern struct fdset_backend_t FDSET_KQUEUE;
+
+#endif /* _KNOTD_FDSET_KQUEUE_H_ */
+
+/*! @} */