/*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 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
* 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 */
/*
#define _SYS_FILE_H_
#include <sys/appleapiopts.h>
+#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/unistd.h>
+#include <sys/queue.h>
+#include <sys/cdefs.h>
#ifdef KERNEL
-#include <sys/errno.h>
#include <sys/queue.h>
-#include <sys/cdefs.h>
+#include <sys/kernel_types.h>
+#endif
-struct proc;
-struct uio;
-#ifdef __APPLE_API_UNSTABLE
+#if __DARWIN_ALIGN_POWER
+#pragma options align=power
+#endif
-/*
- * Kernel descriptor table.
- * One entry for each open kernel vnode and socket.
- */
-struct file {
- LIST_ENTRY(file) f_list;/* list of active files */
+/* for the compat sake; */
+struct extern_file {
+ LIST_ENTRY(extern_file) f_list; /* list of active files */
short f_flag; /* see fcntl.h */
-#define DTYPE_VNODE 1 /* file */
-#define DTYPE_SOCKET 2 /* communications endpoint */
-#define DTYPE_PSXSHM 3 /* POSIX Shared memory */
-#define DTYPE_PSXSEM 4 /* POSIX Semaphores */
short f_type; /* descriptor type */
short f_count; /* reference count */
short f_msgcount; /* references from message queue */
struct ucred *f_cred; /* credentials associated with descriptor */
- struct fileops {
- int (*fo_read) __P((struct file *fp, struct uio *uio,
- struct ucred *cred, int flags,
- struct proc *p));
- int (*fo_write) __P((struct file *fp, struct uio *uio,
- 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));
- int (*fo_close) __P((struct file *fp, struct proc *p));
- } *f_ops;
+ void * f_ops;
off_t f_offset;
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 */
+#if __DARWIN_ALIGN_POWER
+#pragma options align=reset
+#endif
+#ifdef KERNEL
__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));
-}
+int file_socket(int, socket_t *);
+int file_vnode(int, vnode_t *);
+int file_flags(int, int *);
+int file_drop(int);
__END_DECLS
-#endif /* __APPLE_API_UNSTABLE */
-
#endif /* KERNEL */
#endif /* !_SYS_FILE_H_ */
projects / apple / xnu.git / blobdiff