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/****************************************************************************
* include/sys/types.h
*
* Copyright (C) 2007-2009, 2011-2012, 2014-2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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 __INCLUDE_SYS_TYPES_H
#define __INCLUDE_SYS_TYPES_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/compiler.h>
#ifndef __ASSEMBLY__
# include <stdint.h>
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Alternative values for type bool (for historic reasons) */
#ifndef TRUE
# define TRUE 1
#endif
#ifndef FALSE
# define FALSE 0
#endif
/* NULL is usually defined in stddef.h (which includes this file) */
#ifndef NULL
/* SDCC is sensitive to NULL pointer type conversions, and C++ defines
* NULL as zero
*/
# if defined(SDCC) || defined(__cplusplus)
# define NULL (0)
# else
# define NULL ((void*)0)
# endif
#endif
/* POSIX-like OS return values: */
#if !defined(__cplusplus)
# undef ERROR
# define ERROR -1
#endif
#undef OK
#define OK 0
/* HPUX-like MIN/MAX value */
#define PRIOR_RR_MIN 0
#define PRIOR_RR_MAX 255
#define PRIOR_FIFO_MIN 0
#define PRIOR_FIFO_MAX 255
#define PRIOR_OTHER_MIN 0
#define PRIOR_OTHER_MAX 255
/* Scheduling Priorities. NOTE: Only the idle task can take the true
* minimum priority.
*/
#define SCHED_PRIORITY_MAX 255
#define SCHED_PRIORITY_DEFAULT 100
#define SCHED_PRIORITY_MIN 1
#define SCHED_PRIORITY_IDLE 0
/****************************************************************************
* Type Declarations
****************************************************************************/
#ifndef __ASSEMBLY__
/* Floating point types */
typedef float float32;
#ifndef CONFIG_HAVE_DOUBLE
typedef float double_t;
typedef float float64;
#else
typedef double double_t;
typedef double float64;
#endif
/* Misc. scalar types */
/* mode_t is an integer type used for file attributes. mode_t needs
* to be at least 16-bits but, in fact must be sizeof(int) because it is
* pased via varargs.
*/
typedef unsigned int mode_t;
/* size_t is used for sizes of memory objects.
* ssize_t is used for a count of bytes or an error indication.
*
* REVISIT: size_t belongs in stddef.h
*/
#ifdef CONFIG_SMALL_MEMORY
typedef uint16_t size_t;
typedef int16_t ssize_t;
typedef uint16_t rsize_t;
#else /* CONFIG_SMALL_MEMORY */
typedef uint32_t size_t;
typedef int32_t ssize_t;
typedef uint32_t rsize_t;
#endif /* CONFIG_SMALL_MEMORY */
/* uid_t is used for user IDs
* gid_t is used for group IDs.
*/
typedef int16_t uid_t;
typedef int16_t gid_t;
/* dev_t is used for device IDs */
typedef uint16_t dev_t;
/* ino_t is used for file serial numbers */
typedef uint16_t ino_t;
/* pid_t is used for process IDs and process group IDs. It must be signed because
* negative PID values are used to represent invalid PIDs.
*/
typedef int16_t pid_t;
/* id_t is a general identifier that can be used to contain at least a pid_t,
* uid_t, or gid_t.
*/
typedef int16_t id_t;
/* Unix requires a key of type key_t defined in file sys/types.h for requesting
* resources such as shared memory segments, message queues and semaphores. A key
* is simply an integer of type key_t
*/
typedef int16_t key_t;
/* Signed integral type of the result of subtracting two pointers */
typedef intptr_t ptrdiff_t;
/* Wide, 16-bit character types. wchar_t is a built-in type in C++ and
* its declaration here may cause compilation errors on some compilers
* if -DCONFIG_WCHAR_BUILTIN is not included in the CXXFLAGS.
*
* REVISIT: wchar_t belongs in stddef.h
*/
#ifndef CONFIG_WCHAR_BUILTIN
typedef uint16_t wchar_t;
#endif
/* blkcnt_t and off_t are signed integer types.
*
* blkcnt_t is used for file block counts.
* off_t is used for file offsets and sizes.
* fpos_t is used for file positions.
*
* Hence, all should be independent of processor architecture.
*/
typedef uint32_t blkcnt_t;
typedef int32_t off_t;
typedef off_t fpos_t;
/* Large file versions */
#ifdef CONFIG_HAVE_LONG_LONG
typedef int64_t off64_t;
typedef int64_t fpos64_t;
#endif
/* blksize_t is a signed integer value used for file block sizes */
typedef int16_t blksize_t;
/* Network related */
typedef unsigned int socklen_t;
typedef uint16_t sa_family_t;
/* Used for system times in clock ticks */
typedef uint32_t clock_t;
/* The type useconds_t shall be an unsigned integer type capable of storing
* values at least in the range [0, 1000000]. The type suseconds_t shall be
* a signed integer type capable of storing values at least in the range
* [-1, 1000000].
*/
typedef uint32_t useconds_t;
typedef int32_t suseconds_t;
/* BSD types provided only to support porting to NuttX. */
typedef unsigned char u_char;
typedef unsigned short u_short;
typedef unsigned int u_int;
typedef unsigned long u_long;
/* SYSV types provided only to support porting to NuttX. */
typedef unsigned char unchar;
typedef unsigned short ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef signed char s_char;
typedef char *caddr_t;
/* Task entry point */
typedef CODE int (*main_t)(int argc, char *argv[]);
#endif /* __ASSEMBLY__ */
/****************************************************************************
* Global Function Prototypes
****************************************************************************/
#endif /* __INCLUDE_SYS_TYPES_H */
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