Remove the libkse directory. It was unhooked from the build and kernel

support removed in 2008 (prior to 8.0).

Approved by:	deischen, imp
MFC after:	3 days

1 files changed, 0 insertions, 96 deletions

diff --git a/lib/libkse/thread/thr_once.c b/lib/libkse/thread/thr_once.c
deleted file mode 100644
index eae29ac..0000000
--- a/lib/libkse/thread/thr_once.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
- * 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.
- * 3. Neither the name of the author nor the names of any co-contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
- *
- * $FreeBSD$
- */
-
-#include "namespace.h"
-#include <pthread.h>
-#include "un-namespace.h"
-#include "thr_private.h"
-
-__weak_reference(_pthread_once, pthread_once);
-
-#define ONCE_NEVER_DONE		PTHREAD_NEEDS_INIT
-#define ONCE_DONE		PTHREAD_DONE_INIT
-#define	ONCE_IN_PROGRESS	0x02
-#define	ONCE_MASK		0x03
-
-static pthread_mutex_t		once_lock = PTHREAD_MUTEX_INITIALIZER;
-static pthread_cond_t		once_cv = PTHREAD_COND_INITIALIZER;
-
-/*
- * POSIX:
- * The pthread_once() function is not a cancellation point. However,
- * if init_routine is a cancellation point and is canceled, the effect
- * on once_control shall be as if pthread_once() was never called.
- */
- 
-static void
-once_cancel_handler(void *arg)
-{
-	pthread_once_t *once_control = arg;
-
-	_pthread_mutex_lock(&once_lock);
-	once_control->state = ONCE_NEVER_DONE;
-	_pthread_mutex_unlock(&once_lock);
-	_pthread_cond_broadcast(&once_cv);
-}
-
-int
-_pthread_once(pthread_once_t *once_control, void (*init_routine) (void))
-{
-	struct pthread *curthread;
-	int wakeup = 0;
-
-	if (once_control->state == ONCE_DONE)
-		return (0);
-	_pthread_mutex_lock(&once_lock);
-	while (*(volatile int *)&(once_control->state) == ONCE_IN_PROGRESS)
-		_pthread_cond_wait(&once_cv, &once_lock);
-	/*
-	 * If previous thread was canceled, then the state still
-	 * could be ONCE_NEVER_DONE, we need to check it again.
-	 */
-	if (*(volatile int *)&(once_control->state) == ONCE_NEVER_DONE) {
-		once_control->state = ONCE_IN_PROGRESS;
-		_pthread_mutex_unlock(&once_lock);
-		curthread = _get_curthread();
-		THR_CLEANUP_PUSH(curthread, once_cancel_handler, once_control);
-		init_routine();
-		THR_CLEANUP_POP(curthread, 0);
-		_pthread_mutex_lock(&once_lock);
-		once_control->state = ONCE_DONE;
-		wakeup = 1;
-	}
-	_pthread_mutex_unlock(&once_lock);
-	if (wakeup)
-		_pthread_cond_broadcast(&once_cv);
-	return (0);
-}
-