171 lines
5.2 KiB
C
171 lines
5.2 KiB
C
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/*******************************************************************************
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* FILE NAME: sys\types.h
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*
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* TITLE: This function prototypes and data type definitions for the General Functions.
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*
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* DATA_RIGHTS: Western Design Center and R & C Services Proprietary
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* Copyright(C) 1980-2004
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* All rights reserved. Reproduction in any manner,
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* in whole or in part, is strictly prohibited without
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* the prior written approval of R & C Services or
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* Western Design Center.
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*
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* DESCRIPTION: This file describes function prototypes and data type
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* definitions used for General purpose functions.
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* The <sys\types.h> header contains important data type definitions.
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* It is considered good programming practice to use these definitions,
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* instead of the underlying base type. By convention, all type names end
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* with _t.
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*
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*
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* SPECIAL CONSIDERATIONS:
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* <None>
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*
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* AUTHOR: R. Greenthal
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*
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*
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* CREATION DATE: March 27,2004
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*
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* REVISION HISTORY
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* Name Date Description
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* ------------ ---------- ----------------------------------------------
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* R. Greenthal 03/27/2004 Initial
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* 0x/xx/2004 Added
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* 0x/xx/2004 Added
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*
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*******************************************************************************
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*/
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#ifndef _TYPES_H
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#define _TYPES_H
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/* The type size_t holds all results of the sizeof operator. At first glance,
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* it seems obvious that it should be an unsigned int, but this is not always
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* the case. For example, MINIX-ST (68000) has 32-bit pointers and 16-bit
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* integers. When one asks for the size of a 70K struct or array, the result
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* requires 17 bits to express, so size_t must be a long type. The type
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* ssize_t is the signed version of size_t.
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*/
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#ifndef _SIZE_T
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#define _SIZE_T
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typedef unsigned int size_t;
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#endif
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#ifndef _SSIZE_T
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#define _SSIZE_T
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typedef int ssize_t;
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#endif
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#ifndef _TIME_T
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#define _TIME_T
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typedef long time_t; /* time in sec since 1 Jan 1970 0000 GMT */
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#endif
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#ifndef _CLOCK_T
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#define _CLOCK_T
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typedef long clock_t; /* unit for system accounting */
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#endif
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#ifndef _SIGSET_T
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#define _SIGSET_T
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typedef unsigned long sigset_t;
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#endif
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/* Types used in disk, inode, etc. data structures. */
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typedef short dev_t; /* holds (major|minor) device pair */
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typedef char gid_t; /* group id */
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typedef unsigned short ino_t; /* i-node number */
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typedef unsigned short mode_t; /* file type and permissions bits */
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typedef char nlink_t; /* number of links to a file */
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typedef unsigned long off_t; /* offset within a file */
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typedef int pid_t; /* process id (must be signed) */
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typedef short uid_t; /* user id */
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typedef unsigned long zone_t; /* zone number */
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typedef unsigned long block_t; /* block number */
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typedef unsigned long bit_t; /* bit number in a bit map */
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typedef unsigned short zone1_t; /* zone number for V1 file systems */
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typedef unsigned short bitchunk_t; /* collection of bits in a bitmap */
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typedef unsigned char u8_t; /* 8 bit type */
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typedef unsigned short u16_t; /* 16 bit type */
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typedef unsigned long u32_t; /* 32 bit type */
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//typedef unsigned long long u64_t; /* 64 bit type */
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typedef unsigned char uchar; /* 8 bit type */
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typedef unsigned short uint; /* 16 bit type */
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typedef unsigned long ulong; /* 32 bit type */
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//typedef unsigned long long ull; /* 64 bit type */
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//typedef unsigned char UCHAR; /* 8 bit type */
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//typedef unsigned short UINT; /* 16 bit type */
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//typedef unsigned long ULONG; /* 32 bit type */
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//typedef unsigned long long ULL; /* 64 bit type */
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typedef char i8_t; /* 8 bit signed type */
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typedef short i16_t; /* 16 bit signed type */
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typedef long i32_t; /* 32 bit signed type */
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//typedef long long i64_t; /* 64 bit signed type */
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#ifndef _FLOAT_T
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#define _FLOAT_T
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typedef float float_t;
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#endif
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#ifndef _DOUBLE_T
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#define _DOUBLE_T
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typedef double double_t;
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#endif
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/* Signal handler type, e.g. SIG_IGN */
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#if defined(_ANSI)
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typedef void (*sighandler_t) (int);
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#else
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typedef void (*sighandler_t)();
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#endif
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//*****************************
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//*****************************
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// Special
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//*****************************
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//*****************************
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#define TRUE 1
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#define FALSE 0
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#define true 1
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#define false 0
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#define bool int
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#define BOOL int
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#define _Bool int // 1999 C
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#define EQ ==
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#define GE >=
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#define GT >
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#define LE <=
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#define LT <
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#define NE !=
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/*
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** Macros to manipulate bits in an array of char.
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** These macros assume CHAR_BIT is one of either 8, 16, or 32.
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*/
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#define MASK CHAR_BIT-1
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#define SHIFT ((CHAR_BIT==8)?3:(CHAR_BIT==16)?4:8)
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#define BitOff(a,x) ((void)((a)[(x)>>SHIFT] &= ~(1 << ((x)&MASK))))
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#define BitOn(a,x) ((void)((a)[(x)>>SHIFT] |= (1 << ((x)&MASK))))
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#define BitFlip(a,x) ((void)((a)[(x)>>SHIFT] ^= (1 << ((x)&MASK))))
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#define IsBit(a,x) ((a)[(x)>>SHIFT] & (1 << ((x)&MASK)))
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#endif /* _TYPES_H */
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