xnu-3789.31.2.tar.gz

[apple/xnu.git] / bsd / sys / conf.h

diff --git a/bsd/sys/conf.h b/bsd/sys/conf.h
index 4cf53a914b8a7a5a44aee12a647c57b20b6124e5..3b3f0e2346c209a040a042c368369a4ba5a701b1 100644 (file)
--- a/bsd/sys/conf.h
+++ b/bsd/sys/conf.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -71,6 +71,8 @@
 
 #include <sys/appleapiopts.h>
 #include <sys/cdefs.h>
+#include <sys/queue.h>
+#include <stdint.h>
 
 /*
  * Definitions of device driver entry switches
@@ -164,6 +166,7 @@ d_write_t   nowrite;
 
 #ifdef KERNEL_PRIVATE
 extern struct bdevsw bdevsw[];
+extern int (*bootcache_contains_block)(dev_t device, u_int64_t blkno);
 #endif /* KERNEL_PRIVATE */
 
 /*
@@ -194,10 +197,23 @@ struct cdevsw {
        int                     d_type;
 };
 
+#ifdef BSD_KERNEL_PRIVATE
+
+extern uint64_t cdevsw_flags[];
+#define CDEVSW_SELECT_KQUEUE   0x01
+#define CDEVSW_USE_OFFSET      0x02
+
+struct thread;
+
+typedef struct devsw_lock {
+       TAILQ_ENTRY(devsw_lock)         dl_list;
+       struct thread                   *dl_thread;
+       dev_t                           dl_dev;
+       int                             dl_mode;
+} *devsw_lock_t;
+
+#endif /* BSD_KERNEL_PRIVATE */
 
-#ifdef KERNEL_PRIVATE
-extern struct cdevsw cdevsw[];
-#endif /* KERNEL_PRIVATE */
 
 /*
  * Contents of empty cdevsw slot.
@@ -240,7 +256,7 @@ struct linesw {
 
 
 extern struct linesw linesw[];
-extern int nlinesw;
+extern const int nlinesw;
  
 int ldisc_register(int , struct linesw *);
 void ldisc_deregister(int);
@@ -276,6 +292,17 @@ extern struct swdevt swdevt[];
  *  else -1
  */
 __BEGIN_DECLS
+#ifdef KERNEL_PRIVATE
+void devsw_init(void);
+extern struct cdevsw cdevsw[];
+extern int cdevsw_setkqueueok(int, struct cdevsw*, int);
+#endif /* KERNEL_PRIVATE */
+
+#ifdef BSD_KERNEL_PRIVATE
+extern void devsw_lock(dev_t, int);
+extern void devsw_unlock(dev_t, int);
+#endif /* BSD_KERNEL_PRIVATE */
+
 int  bdevsw_isfree(int);
 int  bdevsw_add(int, struct bdevsw *);
 int  bdevsw_remove(int, struct bdevsw *);