Import changeset

mit-pthreads/include/pthread/kthread.h

@@ -0,0 +1,67 @@
+/* ==== kthread.h ============================================================
+ * Copyright (c) 1993, 1994 by Chris Provenzano, proven@mit.edu
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *  This product includes software developed by Chris Provenzano.
+ * 4. The name of Chris Provenzano may not be used to endorse or promote 
+ *	  products derived from this software without specific prior written
+ *	  permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``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 CHRIS PROVENZANO 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.
+ *
+ * $Id$
+ *
+ * Description : Basic pthread header.
+ *
+ *  1.00 93/07/20 proven
+ *      -Started coding this file.
+ *
+ *	1.32 94/05/25 proven
+ *		-Started adding kernel thread support
+ */
+ 
+#ifndef _KTHREAD_H_
+#define	_KTHREAD_H_
+
+enum kthread_state {
+	KS_RUNNING,
+	KS_DEAD,
+};
+
+struct kthread {
+	enum kthread_state		state;
+
+	struct pthread_queue 	pthread_current_queue;
+	struct pthread *		pthread_link_list;
+	struct pthread *		pthread_run;
+
+	semaphore				lock;
+
+};
+
+/*
+ * Globals
+ */
+extern struct kthread		  * kthread_link_list;
+
+#endif