xnu-517.7.21.tar.gz

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

diff --git a/bsd/sys/filedesc.h b/bsd/sys/filedesc.h
index a0f0bc75aee227690af510e53fc6b0e7e60a6034..f1f2fb4fd7904da688a55377030df10ded36fb5c 100644 (file)
--- a/bsd/sys/filedesc.h
+++ b/bsd/sys/filedesc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
@@ -58,6 +58,9 @@
 #ifndef _SYS_FILEDESC_H_
 #define        _SYS_FILEDESC_H_
 
+#include <sys/appleapiopts.h>
+
+#ifdef __APPLE_API_UNSTABLE
 /*
  * This structure is used for the management of descriptors.  It may be
  * shared by multiple processes.
@@ -75,6 +78,8 @@
 #define NDFILE         25              /* 125 bytes */
 #define NDEXTENT       50              /* 250 bytes in 256-byte alloc. */ 
 
+struct klist;
+
 struct filedesc {
        struct  file **fd_ofiles;       /* file structures for open files */
        char    *fd_ofileflags;         /* per-process open file flags */
@@ -85,6 +90,11 @@ struct filedesc {
        u_short fd_freefile;            /* approx. next free file */
        u_short fd_cmask;               /* mask for file creation */
        u_short fd_refcnt;              /* reference count */
+
+       int     fd_knlistsize;          /* size of knlist */
+       struct  klist *fd_knlist;       /* list of attached knotes */
+       u_long  fd_knhashmask;          /* size of knhash */
+       struct  klist *fd_knhash;       /* hash table for attached knotes */
 };
 
 /*
@@ -116,10 +126,15 @@ extern int        fdgetf __P((struct proc *p, int fd, struct file **resultfp));
 extern int     falloc __P((struct proc *p,
                                struct file **resultfp, int *resultfd));
 extern void    ffree __P((struct file *fp));
+
+#ifdef __APPLE_API_PRIVATE
 extern struct  filedesc *fdcopy __P((struct proc *p));
 extern void    fdfree __P((struct proc *p));
 extern void    fdexec __P((struct proc *p));
+#endif /* __APPLE_API_PRIVATE */
 
 #endif /* KERNEL */
 
+#endif /* __APPLE_API_UNSTABLE */
+
 #endif /* !_SYS_FILEDESC_H_ */