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-rw-r--r--fuse/include/ulockmgr.h26
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diff --git a/fuse/include/ulockmgr.h b/fuse/include/ulockmgr.h
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+/*
+ libulockmgr: Userspace Lock Manager Library
+ Copyright (C) 2006 Miklos Szeredi <miklos@szeredi.hu>
+
+ This program can be distributed under the terms of the GNU LGPLv2.
+ See the file COPYING.LIB.
+*/
+
+#include "fuse_lowlevel.h"
+
+#include <stdint.h>
+#include <fcntl.h>
+#include <sys/types.h>
+
+/**
+ * Perform POSIX locking operation
+ *
+ * @param fd the file descriptor
+ * @param cmd the locking command (F_GETFL, F_SETLK or F_SETLKW)
+ * @param lock the lock parameters
+ * @param owner the lock owner ID cookie
+ * @param owner_len length of the lock owner ID cookie
+ * @return 0 on success -errno on error
+ */
+int ulockmgr_op(int fd, int cmd, struct flock *lock, const void *owner,
+ size_t owner_len);