X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/55e303ae13a4cf49d70f2294092726f2fffb9ef2..4a3eedf9ecc9bbe3f3a5c6ce5e53ad199d639d32:/bsd/sys/filedesc.h

diff --git a/bsd/sys/filedesc.h b/bsd/sys/filedesc.h
index 8e9f04fab..b9839f3e9 100644
--- a/bsd/sys/filedesc.h
+++ b/bsd/sys/filedesc.h
@@ -1,16 +1,19 @@
 /*
  * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
 /*
@@ -84,28 +87,41 @@
 struct klist;
 
 struct filedesc {
-	struct	file **fd_ofiles;	/* file structures for open files */
+	struct	fileproc **fd_ofiles;	/* file structures for open files */
 	char	*fd_ofileflags;		/* per-process open file flags */
 	struct	vnode *fd_cdir;		/* current directory */
 	struct	vnode *fd_rdir;		/* root directory */
 	int	fd_nfiles;		/* number of open files allocated */
-	u_short	fd_lastfile;		/* high-water mark of fd_ofiles */
-	u_short	fd_freefile;		/* approx. next free file */
+	int	fd_lastfile;		/* high-water mark of fd_ofiles */
+	int	fd_freefile;		/* approx. next free file */
 	u_short	fd_cmask;		/* mask for file creation */
-	u_short	fd_refcnt;		/* reference count */
+	u_long	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 */
+        int	fd_flags;
 };
 
+/*
+ * definitions for fd_flags;
+ */
+#define	FD_CHROOT	0x01	/* process was chrooted... keep track even */
+                                /* if we're force unmounted and unable to */
+                                /* take a vnode_ref on fd_rdir during a fork */
+
 /*
  * Per-process open flags.
  */
 #define	UF_EXCLOSE 	0x01		/* auto-close on exec */
-#define	UF_MAPPED 	0x02		/* mapped from device */
 #define UF_RESERVED	0x04		/* open pending / in progress */
+#define UF_CLOSING	0x08		/* close in progress */
+
+#ifdef KERNEL
+#define UF_RESVWAIT	0x10		/* close in progress */
+#define UF_VALID_FLAGS	(UF_EXCLOSE| UF_RESERVED | UF_CLOSING | UF_RESVWAIT)
+#endif /* KERNEL */
 
 /*
  * Storage required per open file descriptor.
@@ -116,24 +132,22 @@ struct filedesc {
 /*
  * Kernel global variables and routines.
  */
-extern int	dupfdopen __P((struct filedesc *fdp,
-				int indx, int dfd, int mode, int error));
-extern int	fdalloc __P((struct proc *p, int want, int *result));
-extern void	fdrelse __P((struct proc *p, int fd));
-extern int	fdavail __P((struct proc *p, int n));
-extern int	fdgetf __P((struct proc *p, int fd, struct file **resultfp));
+extern int	dupfdopen(struct filedesc *fdp,
+				int indx, int dfd, int mode, int error);
+extern int	fdalloc(proc_t p, int want, int *result);
+extern void	fdrelse(proc_t p, int fd);
+extern int	fdavail(proc_t p, int n);
 #define		fdfile(p, fd)					\
 			(&(p)->p_fd->fd_ofiles[(fd)])
 #define		fdflags(p, fd)					\
 			(&(p)->p_fd->fd_ofileflags[(fd)])
-extern int	falloc __P((struct proc *p,
-				struct file **resultfp, int *resultfd));
-extern void	ffree __P((struct file *fp));
+extern int	falloc(proc_t p, struct fileproc **resultfp, int *resultfd, vfs_context_t ctx);
+extern void	ffree(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));
+extern struct	filedesc *fdcopy(proc_t p, struct vnode *uth_cdir);
+extern void	fdfree(proc_t p);
+extern void	fdexec(proc_t p);
 #endif /* __APPLE_API_PRIVATE */
 
 #endif /* KERNEL */