8a54d267f0
- sys_getbiosbuffer feature is gone (from kernel; available from vm) - bump version number because munmap() calls that newly compiled binaries will do trigger an ugly (but harmless) error message in older VM's - some new VM calls and flags, the new IPC calls - some new CR0 register bits - added files for shared memory
155 lines
5.0 KiB
C
Executable File
155 lines
5.0 KiB
C
Executable File
/* The <sys/types.h> header contains important data type definitions.
|
|
* It is considered good programming practice to use these definitions,
|
|
* instead of the underlying base type. By convention, all type names end
|
|
* with _t.
|
|
*/
|
|
|
|
#ifndef _TYPES_H
|
|
#define _TYPES_H
|
|
|
|
#ifndef _ANSI_H
|
|
#include <ansi.h>
|
|
#endif
|
|
|
|
/* The type size_t holds all results of the sizeof operator. At first glance,
|
|
* it seems obvious that it should be an unsigned int, but this is not always
|
|
* the case. For example, MINIX-ST (68000) has 32-bit pointers and 16-bit
|
|
* integers. When one asks for the size of a 70K struct or array, the result
|
|
* requires 17 bits to express, so size_t must be a long type. The type
|
|
* ssize_t is the signed version of size_t.
|
|
*/
|
|
#ifndef _SIZE_T
|
|
#define _SIZE_T
|
|
typedef unsigned int size_t;
|
|
#endif
|
|
|
|
#ifndef _SSIZE_T
|
|
#define _SSIZE_T
|
|
typedef int ssize_t;
|
|
#endif
|
|
|
|
#ifndef _TIME_T
|
|
#define _TIME_T
|
|
typedef long time_t; /* time in sec since 1 Jan 1970 0000 GMT */
|
|
#endif
|
|
|
|
#ifndef _CLOCK_T
|
|
#define _CLOCK_T
|
|
typedef long clock_t; /* unit for system accounting */
|
|
#endif
|
|
|
|
#ifndef _SIGSET_T
|
|
#define _SIGSET_T
|
|
typedef unsigned long sigset_t;
|
|
#endif
|
|
|
|
#ifndef _KEY_T
|
|
#define _KEY_T
|
|
typedef long key_t;
|
|
#endif
|
|
|
|
/* Open Group Base Specifications Issue 6 (not complete) */
|
|
typedef long useconds_t; /* Time in microseconds */
|
|
|
|
/* Types used in disk, inode, etc. data structures. */
|
|
typedef short dev_t; /* holds (major|minor) device pair */
|
|
typedef char gid_t; /* group id */
|
|
typedef unsigned long ino_t; /* i-node number (V3 filesystem) */
|
|
typedef unsigned short mode_t; /* file type and permissions bits */
|
|
typedef short nlink_t; /* number of links to a file */
|
|
typedef long off_t; /* offset within a file */
|
|
typedef int pid_t; /* process id (must be signed) */
|
|
typedef short uid_t; /* user id */
|
|
typedef unsigned long zone_t; /* zone number */
|
|
typedef unsigned long block_t; /* block number */
|
|
typedef unsigned long bit_t; /* bit number in a bit map */
|
|
typedef unsigned short zone1_t; /* zone number for V1 file systems */
|
|
typedef unsigned short bitchunk_t; /* collection of bits in a bitmap */
|
|
|
|
typedef unsigned char u8_t; /* 8 bit type */
|
|
typedef unsigned short u16_t; /* 16 bit type */
|
|
typedef unsigned long u32_t; /* 32 bit type */
|
|
|
|
typedef char i8_t; /* 8 bit signed type */
|
|
typedef short i16_t; /* 16 bit signed type */
|
|
typedef long i32_t; /* 32 bit signed type */
|
|
|
|
typedef struct {
|
|
u32_t lo;
|
|
u32_t hi;
|
|
} u64_t;
|
|
|
|
/* The following types are needed because MINIX uses K&R style function
|
|
* definitions (for maximum portability). When a short, such as dev_t, is
|
|
* passed to a function with a K&R definition, the compiler automatically
|
|
* promotes it to an int. The prototype must contain an int as the parameter,
|
|
* not a short, because an int is what an old-style function definition
|
|
* expects. Thus using dev_t in a prototype would be incorrect. It would be
|
|
* sufficient to just use int instead of dev_t in the prototypes, but Dev_t
|
|
* is clearer.
|
|
*/
|
|
typedef int Dev_t;
|
|
typedef int _mnx_Gid_t;
|
|
typedef int Nlink_t;
|
|
typedef int _mnx_Uid_t;
|
|
typedef int U8_t;
|
|
typedef unsigned long U32_t;
|
|
typedef int I8_t;
|
|
typedef int I16_t;
|
|
typedef long I32_t;
|
|
|
|
/* ANSI C makes writing down the promotion of unsigned types very messy. When
|
|
* sizeof(short) == sizeof(int), there is no promotion, so the type stays
|
|
* unsigned. When the compiler is not ANSI, there is usually no loss of
|
|
* unsignedness, and there are usually no prototypes so the promoted type
|
|
* doesn't matter. The use of types like Ino_t is an attempt to use ints
|
|
* (which are not promoted) while providing information to the reader.
|
|
*/
|
|
|
|
typedef unsigned long Ino_t;
|
|
|
|
#if _EM_WSIZE == 2
|
|
/*typedef unsigned int Ino_t; Ino_t is now 32 bits */
|
|
typedef unsigned int Zone1_t;
|
|
typedef unsigned int Bitchunk_t;
|
|
typedef unsigned int U16_t;
|
|
typedef unsigned int _mnx_Mode_t;
|
|
|
|
#else /* _EM_WSIZE == 4, or _EM_WSIZE undefined */
|
|
/*typedef int Ino_t; Ino_t is now 32 bits */
|
|
typedef int Zone1_t;
|
|
typedef int Bitchunk_t;
|
|
typedef int U16_t;
|
|
typedef int _mnx_Mode_t;
|
|
|
|
#endif /* _EM_WSIZE == 2, etc */
|
|
|
|
/* Signal handler type, e.g. SIG_IGN */
|
|
typedef void _PROTOTYPE( (*sighandler_t), (int) );
|
|
|
|
/* Compatibility with other systems */
|
|
typedef unsigned char u_char;
|
|
typedef unsigned short u_short;
|
|
typedef unsigned int u_int;
|
|
typedef unsigned long u_long;
|
|
typedef char *caddr_t;
|
|
|
|
/* Devices. */
|
|
#define MAJOR 8 /* major device = (dev>>MAJOR) & 0377 */
|
|
#define MINOR 0 /* minor device = (dev>>MINOR) & 0377 */
|
|
|
|
#ifndef minor
|
|
#define minor(dev) (((dev) >> MINOR) & 0xff)
|
|
#endif
|
|
|
|
#ifndef major
|
|
#define major(dev) (((dev) >> MAJOR) & 0xff)
|
|
#endif
|
|
|
|
#ifndef makedev
|
|
#define makedev(major, minor) \
|
|
((dev_t) (((major) << MAJOR) | ((minor) << MINOR)))
|
|
#endif
|
|
|
|
#endif /* _TYPES_H */
|