Initial import

1 files changed, 96 insertions, 0 deletions

diff --git a/include/net/irda/irqueue.h b/include/net/irda/irqueue.h
new file mode 100644
index 000000000..37f512bd6
--- /dev/null
+++ b/include/net/irda/irqueue.h
@@ -0,0 +1,96 @@
+/*********************************************************************
+ *                
+ * Filename:      irqueue.h
+ * Version:       0.3
+ * Description:   General queue implementation
+ * Status:        Experimental.
+ * Author:        Dag Brattli <dagb@cs.uit.no>
+ * Created at:    Tue Jun  9 13:26:50 1998
+ * Modified at:   Thu Oct  7 13:25:16 1999
+ * Modified by:   Dag Brattli <dagb@cs.uit.no>
+ * 
+ *     Copyright (C) 1998-1999, Aage Kvalnes <aage@cs.uit.no>
+ *     Copyright (c) 1998, Dag Brattli
+ *     All Rights Reserved.
+ *      
+ *     This code is taken from the Vortex Operating System written by Aage
+ *     Kvalnes and has been ported to Linux and Linux/IR by Dag Brattli
+ *
+ *     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 2 of 
+ *     the License, or (at your option) any later version.
+ *  
+ *     Neither Dag Brattli nor University of Tromsø admit liability nor
+ *     provide warranty for any of this software. This material is 
+ *     provided "AS-IS" and at no charge.
+ *     
+ ********************************************************************/
+
+#include <linux/types.h>
+#include <linux/spinlock.h>
+
+#ifndef IRDA_QUEUE_H
+#define IRDA_QUEUE_H
+
+#define NAME_SIZE      32
+
+/*
+ * Hash types (some flags can be xored)
+ * See comments in irqueue.c for which one to use...
+ */
+#define HB_NOLOCK	0	/* No concurent access prevention */
+#define HB_LOCK		1	/* Prevent concurent write with global lock */
+
+/*
+ * Hash defines
+ */
+#define HASHBIN_SIZE   8
+#define HASHBIN_MASK   0x7
+
+#ifndef IRDA_ALIGN 
+#define IRDA_ALIGN __attribute__((aligned))
+#endif
+
+#define Q_NULL { NULL, NULL, "", 0 }
+
+typedef void (*FREE_FUNC)(void *arg);
+
+struct irda_queue {
+	struct irda_queue *q_next;
+	struct irda_queue *q_prev;
+
+	char   q_name[NAME_SIZE];
+	long   q_hash;			/* Must be able to cast a (void *) */
+};
+typedef struct irda_queue irda_queue_t;
+
+typedef struct hashbin_t {
+	__u32      magic;
+	int        hb_type;
+	int        hb_size;
+	spinlock_t hb_spinlock;		/* HB_LOCK - Can be used by the user */
+
+	irda_queue_t* hb_queue[HASHBIN_SIZE] IRDA_ALIGN;
+
+	irda_queue_t* hb_current;
+} hashbin_t;
+
+hashbin_t *hashbin_new(int type);
+int      hashbin_delete(hashbin_t* hashbin, FREE_FUNC func);
+int      hashbin_clear(hashbin_t* hashbin, FREE_FUNC free_func);
+void     hashbin_insert(hashbin_t* hashbin, irda_queue_t* entry, long hashv, 
+			const char* name);
+void*    hashbin_remove(hashbin_t* hashbin, long hashv, const char* name);
+void*    hashbin_remove_first(hashbin_t *hashbin);
+void*	 hashbin_remove_this( hashbin_t* hashbin, irda_queue_t* entry);
+void*    hashbin_find(hashbin_t* hashbin, long hashv, const char* name);
+void*    hashbin_lock_find(hashbin_t* hashbin, long hashv, const char* name);
+void*    hashbin_find_next(hashbin_t* hashbin, long hashv, const char* name,
+			   void ** pnext);
+irda_queue_t *hashbin_get_first(hashbin_t *hashbin);
+irda_queue_t *hashbin_get_next(hashbin_t *hashbin);
+
+#define HASHBIN_GET_SIZE(hashbin) hashbin->hb_size
+
+#endif