From e2abcdca396661cbe0ae2ddb13d5c2b85682c13a Mon Sep 17 00:00:00 2001
From: Cem Keylan <cem@ckyln.com>
Date: Fri, 16 Oct 2020 17:41:25 +0300
Subject: initial commit

---
 sys/sys/eventvar.h | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 sys/sys/eventvar.h

(limited to 'sys/sys/eventvar.h')

diff --git a/sys/sys/eventvar.h b/sys/sys/eventvar.h
new file mode 100644
index 0000000..44338c5
--- /dev/null
+++ b/sys/sys/eventvar.h
@@ -0,0 +1,64 @@
+/*	$OpenBSD: eventvar.h,v 1.9 2020/04/07 13:27:52 visa Exp $	*/
+
+/*-
+ * Copyright (c) 1999,2000 Jonathan Lemon <jlemon@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	$FreeBSD: src/sys/sys/eventvar.h,v 1.3 2000/05/26 02:06:54 jake Exp $
+ */
+
+#ifndef _SYS_EVENTVAR_H_
+#define _SYS_EVENTVAR_H_
+
+#include <sys/task.h>
+
+#define KQ_NEVENTS	8		/* minimize copy{in,out} calls */
+#define KQEXTENT	256		/* linear growth by this amount */
+
+/*
+ * Locking:
+ *	a	atomic operations
+ */
+struct kqueue {
+	TAILQ_HEAD(, knote) kq_head;		/* list of pending event */
+	int		kq_count;		/* number of pending events */
+	u_int		kq_refs;		/* [a] number of references */
+	struct		selinfo kq_sel;
+	struct		filedesc *kq_fdp;
+
+	LIST_ENTRY(kqueue) kq_next;
+
+	int		kq_knlistsize;		/* size of kq_knlist */
+	struct		knlist *kq_knlist;	/* list of attached knotes */
+	u_long		kq_knhashmask;		/* size of kq_knhash */
+	struct		knlist *kq_knhash;	/* hash table for attached knotes */
+	struct		task kq_task;		/* deferring of activation */
+
+	int		kq_state;
+#define KQ_SEL		0x01
+#define KQ_SLEEP	0x02
+#define KQ_DYING	0x04
+};
+
+#endif /* !_SYS_EVENTVAR_H_ */
-- 
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