/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_OSREFERENCE_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. 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.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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. 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.
*
- * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
*/
#ifndef _SYS_UIO_H_
-#define _SYS_UIO_H_
+#define _SYS_UIO_H_
#include <sys/cdefs.h>
#include <sys/_types.h>
* [XSI] The ssize_t and size_t types shall be defined as described
* in <sys/types.h>.
*/
-#ifndef _SIZE_T
-#define _SIZE_T
-typedef __darwin_size_t size_t;
-#endif
-
-#ifndef _SSIZE_T
-#define _SSIZE_T
-typedef __darwin_ssize_t ssize_t;
-#endif
+#include <sys/_types/_size_t.h>
+#include <sys/_types/_ssize_t.h>
/*
* [XSI] Structure whose address is passed as the second parameter to the
* readv() and writev() functions.
*/
-#ifndef _STRUCT_IOVEC
-#define _STRUCT_IOVEC
-struct iovec {
- void * iov_base; /* [XSI] Base address of I/O memory region */
- size_t iov_len; /* [XSI] Size of region iov_base points to */
-};
-#endif
+#include <sys/_types/_iovec_t.h>
-#ifndef _POSIX_C_SOURCE
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
/*
* IO direction for uio_t.
* UIO_READ - data moves into iovec(s) associated with uio_t
* user / kernel address space type flags.
* WARNING - make sure to check when adding flags! Be sure new flags
* don't overlap the definitions in uio_internal.h
- * NOTES -
+ * NOTES -
* UIO_USERSPACE is equivalent to UIO_USERSPACE32, but UIO_USERSPACE32
* is preferred. UIO_USERSPACE remains for backwards compatibility.
- * UIO_SYSSPACE is equivalent to UIO_SYSSPACE32, but UIO_SYSSPACE32
- * is preferred. UIO_SYSSPACE remains for backwards compatibility.
+ * UIO_SYSSPACE is equivalent to UIO_SYSSPACE32, but UIO_SYSSPACE
+ * is preferred.
*/
enum uio_seg {
- UIO_USERSPACE = 0, /* kernel address is virtual, to/from user virtual */
- UIO_SYSSPACE = 2, /* kernel address is virtual, to/from system virtual */
- UIO_USERSPACE32 = 5, /* kernel address is virtual, to/from user 32-bit virtual */
- UIO_USERSPACE64 = 8, /* kernel address is virtual, to/from user 64-bit virtual */
- UIO_SYSSPACE32 = 11 /* kernel address is virtual, to/from system virtual */
+ UIO_USERSPACE = 0, /* kernel address is virtual, to/from user virtual */
+ UIO_SYSSPACE = 2, /* kernel address is virtual, to/from system virtual */
+ UIO_USERSPACE32 = 5, /* kernel address is virtual, to/from user 32-bit virtual */
+ UIO_USERSPACE64 = 8, /* kernel address is virtual, to/from user 64-bit virtual */
+ UIO_SYSSPACE32 = 11 /* deprecated */
};
#define UIO_SEG_IS_USER_SPACE( a_uio_seg ) \
/*
* uio_create - create an uio_t.
- * Space is allocated to hold up to a_iovcount number of iovecs. The uio_t
+ * Space is allocated to hold up to a_iovcount number of iovecs. The uio_t
* is not fully initialized until all iovecs are added using uio_addiov calls.
* a_iovcount is the maximum number of iovecs you may add.
*/
-uio_t uio_create( int a_iovcount, /* max number of iovecs */
- off_t a_offset, /* current offset */
- int a_spacetype, /* type of address space */
- int a_iodirection ); /* read or write flag */
+uio_t uio_create( int a_iovcount, /* max number of iovecs */
+ off_t a_offset, /* current offset */
+ int a_spacetype, /* type of address space */
+ int a_iodirection ); /* read or write flag */
/*
* uio_reset - reset an uio_t.
- * Reset the given uio_t to initial values. The uio_t is not fully initialized
- * until all iovecs are added using uio_add_ov calls.
- * The a_iovcount value passed in the uio_create is the maximum number of
+ * Reset the given uio_t to initial values. The uio_t is not fully initialized
+ * until all iovecs are added using uio_add_ov calls.
+ * The a_iovcount value passed in the uio_create is the maximum number of
* iovecs you may add.
*/
void uio_reset( uio_t a_uio,
- off_t a_offset, /* current offset */
- int a_spacetype, /* type of address space */
- int a_iodirection ); /* read or write flag */
+ off_t a_offset, /* current offset */
+ int a_spacetype, /* type of address space */
+ int a_iodirection ); /* read or write flag */
/*
* uio_duplicate - allocate a new uio and make a copy of the given uio_t.
/*
- * uio_free - free a uio_t allocated via uio_create.
+ * uio_free - free a uio_t allocated via uio_create.
*/
void uio_free( uio_t a_uio );
/*
* uio_addiov - add an iovec to the given uio_t. You may call this up to
- * the a_iovcount number that was passed to uio_create.
+ * the a_iovcount number that was passed to uio_create.
* returns 0 if add was successful else non zero.
*/
int uio_addiov( uio_t a_uio, user_addr_t a_baseaddr, user_size_t a_length );
* uio_getiov - get iovec data associated with the given uio_t. Use
* a_index to iterate over each iovec (0 to (uio_iovcnt(uio_t) - 1)).
* a_baseaddr_p and a_length_p may be NULL.
- * returns -1 when a_index is out of range or invalid uio_t.
+ * returns -1 when a_index is out of range or invalid uio_t.
* returns 0 when data is returned.
*/
-int uio_getiov( uio_t a_uio,
- int a_index,
- user_addr_t * a_baseaddr_p,
- user_size_t * a_length_p );
+int uio_getiov( uio_t a_uio,
+ int a_index,
+ user_addr_t * a_baseaddr_p,
+ user_size_t * a_length_p );
/*
* uio_update - update the given uio_t for a_count of completed IO.
* This call adjusts decrements the current iovec length and residual IO,
- * and increments the current iovec base address and offset value.
+ * and increments the current iovec base address and offset value.
*/
void uio_update( uio_t a_uio, user_size_t a_count );
void uio_setrw( uio_t a_uio, int a_value );
/*
- * uio_isuserspace - return non zero value if the address space
+ * uio_isuserspace - return non zero value if the address space
* flag is for a user address space (could be 32 or 64 bit).
*/
int uio_isuserspace( uio_t a_uio );
/*
- * uio_curriovbase - return the base address of the current iovec associated
+ * uio_curriovbase - return the base address of the current iovec associated
* with the given uio_t. May return 0.
*/
user_addr_t uio_curriovbase( uio_t a_uio );
/*
- * uio_curriovlen - return the length value of the current iovec associated
+ * uio_curriovlen - return the length value of the current iovec associated
* with the given uio_t.
*/
user_size_t uio_curriovlen( uio_t a_uio );
/*
* Limits
*/
-#define UIO_MAXIOV 1024 /* max 1K of iov's */
-#define UIO_SMALLIOV 8 /* 8 on stack, else malloc */
+#define UIO_MAXIOV 1024 /* max 1K of iov's */
+#define UIO_SMALLIOV 8 /* 8 on stack, else malloc */
-extern int uiomove(caddr_t cp, int n, struct uio *uio);
-extern int uiomove64(unsigned long long cp, int n, struct uio *uio);
-extern int ureadc(int c, struct uio *uio);
-extern int uwritec(struct uio *uio);
+extern int uiomove(const char * cp, int n, struct uio *uio);
+extern int uiomove64(const __uint64_t cp, int n, struct uio *uio);
__END_DECLS
#endif /* KERNEL */
-#ifndef KERNEL
+#ifndef KERNEL
__BEGIN_DECLS
-ssize_t readv(int, const struct iovec *, int);
-ssize_t writev(int, const struct iovec *, int);
+ssize_t readv(int, const struct iovec *, int) __DARWIN_ALIAS_C(readv);
+ssize_t writev(int, const struct iovec *, int) __DARWIN_ALIAS_C(writev);
__END_DECLS
#endif /* !KERNEL */
projects / apple / xnu.git / blobdiff