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- /*
- * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008
- * The President and Fellows of Harvard College.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #ifndef _KERN_TYPES_H_
- #define _KERN_TYPES_H_
- /* Get machine-dependent types. */
- #include <kern/machine/types.h>
- /*
- * Machine-independent types visible to user level.
- *
- * Define everything with leading underscores to avoid polluting the C
- * namespace for applications.
- *
- * The C standard (and additionally the POSIX standard) define rules
- * for what families of symbol names are allowed to be used by
- * application programmers, and what families of symbol names can be
- * defined by various standard header files. The C library needs to
- * conform to those rules, to the extent reasonably practical, to make
- * sure that application code compiles and behaves as intended.
- *
- * Many of the C library's headers need to use one or more of these
- * types in places where the "real" name of the type cannot be
- * exposed, or expose the names of some of these types and not others.
- * (For example, <string.h> is supposed to define size_t, but is not
- * supposed to also define e.g. pid_t.)
- *
- * For this reason we define everything with two underscores in front
- * of it; in C such symbol names are reserved for the implementation,
- * which we are, so this file can be included anywhere in any libc
- * header without causing namespace problems. The "real" type names
- * are defined with an additional layer of typedefs; this happens for
- * the kernel in <types.h> and for userland in (mostly) <sys/types.h>
- * and also various other places as per relevant standards.
- */
- typedef __u32 __blkcnt_t; /* Count of blocks */
- typedef __u32 __blksize_t; /* Size of an I/O block */
- typedef __u64 __counter_t; /* Event counter */
- typedef __u32 __daddr_t; /* Disk block number */
- typedef __u32 __dev_t; /* Hardware device ID */
- typedef __u32 __fsid_t; /* Filesystem ID */
- typedef __i32 __gid_t; /* Group ID */
- typedef __u32 __in_addr_t; /* Internet address */
- typedef __u32 __in_port_t; /* Internet port number */
- typedef __u32 __ino_t; /* Inode number */
- typedef __u32 __mode_t; /* File access mode */
- typedef __u16 __nlink_t; /* Number of links (intentionally only 16 bits) */
- typedef __i64 __off_t; /* Offset within file */
- typedef __i32 __pid_t; /* Process ID */
- typedef __u64 __rlim_t; /* Resource limit quantity */
- typedef __u8 __sa_family_t;/* Socket address family */
- typedef __i64 __time_t; /* Time in seconds */
- typedef __i32 __uid_t; /* User ID */
- typedef int __nfds_t; /* Number of file handles */
- typedef int __socklen_t; /* Socket-related length */
- /* See note in <stdarg.h> */
- #ifdef __GNUC__
- typedef __builtin_va_list __va_list;
- #endif
- #endif /* _KERN_TYPES_H_ */
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