X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/0b4e3aa066abc0728aacb4bbeb86f53f9737156e..d7e50217d7adf6e52786a38bcaa4cd698cb9a79e:/bsd/sys/file.h

diff --git a/bsd/sys/file.h b/bsd/sys/file.h
index e3c71ed59..8a29f42f6 100644
--- a/bsd/sys/file.h
+++ b/bsd/sys/file.h
@@ -1,21 +1,24 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -58,15 +61,18 @@
 #ifndef _SYS_FILE_H_
 #define	_SYS_FILE_H_
 
+#include <sys/appleapiopts.h>
 #include <sys/fcntl.h>
 #include <sys/unistd.h>
 
 #ifdef KERNEL
+#include <sys/errno.h>
 #include <sys/queue.h>
 #include <sys/cdefs.h>
 
 struct proc;
 struct uio;
+#ifdef __APPLE_API_UNSTABLE
 
 /*
  * Kernel descriptor table.
@@ -85,30 +91,99 @@ struct file {
 	struct	ucred *f_cred;	/* credentials associated with descriptor */
 	struct	fileops {
 		int	(*fo_read)	__P((struct file *fp, struct uio *uio,
-					    struct ucred *cred));
+					    struct ucred *cred, int flags,
+					    struct proc *p));
 		int	(*fo_write)	__P((struct file *fp, struct uio *uio,
-					    struct ucred *cred));
+					    struct ucred *cred, int flags,
+					    struct proc *p));
+#define	FOF_OFFSET	1
 		int	(*fo_ioctl)	__P((struct file *fp, u_long com,
 					    caddr_t data, struct proc *p));
 		int	(*fo_select)	__P((struct file *fp, int which,
-						void * wql, struct proc *p));
+						void *wql, struct proc *p));
 		int	(*fo_close)	__P((struct file *fp, struct proc *p));
 	} *f_ops;
 	off_t	f_offset;
-	caddr_t	f_data;		/* vnode or socket */
+	caddr_t	f_data;		/* vnode or socket or SHM or semaphore */
 };
 
+#ifdef __APPLE_API_PRIVATE
 LIST_HEAD(filelist, file);
 extern struct filelist filehead;	/* head of list of open files */
 extern int maxfiles;			/* kernel limit on number of open files */
 extern int nfiles;			/* actual number of open files */
+#endif /* __APPLE_API_PRIVATE */
 
 __BEGIN_DECLS
 int fref __P((struct file *));	/* take a reference on file pointer */
 int frele __P((struct file *));	/* release a reference on file pointer */
 int fcount __P((struct file *));	/* returns the reference count */
+
+static __inline int fo_read __P((struct file *fp, struct uio *uio,
+	struct ucred *cred, int flags, struct proc *p));
+static __inline int fo_write __P((struct file *fp, struct uio *uio,
+	struct ucred *cred, int flags, struct proc *p));
+static __inline int fo_ioctl __P((struct file *fp, u_long com, caddr_t data,
+	struct proc *p));
+static __inline int fo_select __P((struct file *fp, int which, void *wql,
+	struct proc *p));
+static __inline int fo_close __P((struct file *fp, struct proc *p));
+
+static __inline int
+fo_read(struct file *fp, struct uio *uio, struct ucred *cred, int flags, struct proc *p)
+{
+	int error;
+
+	if ((error = fref(fp)) == -1)
+		return (EBADF);
+	error = (*fp->f_ops->fo_read)(fp, uio, cred, flags, p);
+	frele(fp);
+	return (error);
+}
+
+static __inline int
+fo_write(struct file *fp, struct uio *uio, struct ucred *cred, int flags, struct proc *p)
+{
+	int error;
+
+	if ((error = fref(fp)) == -1)
+		return (EBADF);
+	error = (*fp->f_ops->fo_write)(fp, uio, cred, flags, p);
+	frele(fp);
+	return (error);
+}
+
+static __inline int 
+fo_ioctl(struct file *fp, u_long com, caddr_t data, struct proc *p)
+{
+	int error;   
+
+	if ((error = fref(fp)) == -1)
+		return (EBADF);
+	error = (*fp->f_ops->fo_ioctl)(fp, com, data, p);
+	frele(fp);
+	return (error);
+}       
+
+static __inline int
+fo_select(struct file *fp, int which, void *wql, struct proc *p)
+{       
+	int error;
+
+	error = (*fp->f_ops->fo_select)(fp, which, wql, p);
+	return (error);
+}
+
+static __inline int
+fo_close(struct file *fp, struct proc *p)
+{       
+
+	return ((*fp->f_ops->fo_close)(fp, p));
+}
 __END_DECLS
 
+#endif /* __APPLE_API_UNSTABLE */
+
 #endif /* KERNEL */
 
 #endif /* !_SYS_FILE_H_ */