posix_types.h

《嵌入式系统设计与实例开发实验教材二源码》Linux内核移植与编译实验

#ifndef __ARCH_SPARC64_POSIX_TYPES_H
#define __ARCH_SPARC64_POSIX_TYPES_H

/*
 * This file is generally used by user-level software, so you need to
 * be a little careful about namespace pollution etc.  Also, we cannot
 * assume GCC is being used.
 */

typedef unsigned long          __kernel_size_t;
typedef long                   __kernel_ssize_t;
typedef long                   __kernel_ptrdiff_t;
typedef long                   __kernel_time_t;
typedef long                   __kernel_clock_t;
typedef int                    __kernel_pid_t;
typedef int                    __kernel_ipc_pid_t;
typedef unsigned int           __kernel_uid_t;
typedef unsigned int           __kernel_gid_t;
typedef unsigned int           __kernel_dev_t;
typedef unsigned long          __kernel_ino_t;
typedef unsigned int           __kernel_mode_t;
typedef unsigned short         __kernel_umode_t;
typedef unsigned int           __kernel_nlink_t;
typedef int                    __kernel_daddr_t;
typedef long                   __kernel_off_t;
typedef char *                 __kernel_caddr_t;
typedef unsigned short	       __kernel_uid16_t;
typedef unsigned short	       __kernel_gid16_t;

typedef __kernel_uid_t 	       __kernel_old_uid_t;
typedef __kernel_gid_t         __kernel_old_gid_t;
typedef __kernel_uid_t	       __kernel_uid32_t;
typedef __kernel_gid_t	       __kernel_gid32_t;

/* Note this piece of asymmetry from the v9 ABI.  */
typedef int		       __kernel_suseconds_t;

#ifdef __GNUC__
typedef long long              __kernel_loff_t;
#endif

typedef struct {
#if defined(__KERNEL__) || defined(__USE_ALL)
	int	val[2];
#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
	int     __val[2];
#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
} __kernel_fsid_t;

/* Now 32bit compatibility types */
typedef unsigned int           __kernel_size_t32;
typedef int                    __kernel_ssize_t32;
typedef int                    __kernel_ptrdiff_t32;
typedef int                    __kernel_time_t32;
typedef int                    __kernel_clock_t32;
typedef int                    __kernel_pid_t32;
typedef unsigned short         __kernel_ipc_pid_t32;
typedef unsigned short         __kernel_uid_t32;
typedef unsigned short         __kernel_gid_t32;
typedef unsigned short         __kernel_dev_t32;
typedef unsigned int           __kernel_ino_t32;
typedef unsigned short         __kernel_mode_t32;
typedef unsigned short         __kernel_umode_t32;
typedef short                  __kernel_nlink_t32;
typedef int                    __kernel_daddr_t32;
typedef int                    __kernel_off_t32;
typedef unsigned int           __kernel_caddr_t32;
typedef long		       __kernel_loff_t32;
typedef __kernel_fsid_t        __kernel_fsid_t32;

#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)

#undef __FD_SET
static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
{
	unsigned long _tmp = fd / __NFDBITS;
	unsigned long _rem = fd % __NFDBITS;
	fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
}

#undef __FD_CLR
static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
{
	unsigned long _tmp = fd / __NFDBITS;
	unsigned long _rem = fd % __NFDBITS;
	fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
}

#undef __FD_ISSET
static __inline__ int __FD_ISSET(unsigned long fd, __const__ __kernel_fd_set *p)
{ 
	unsigned long _tmp = fd / __NFDBITS;
	unsigned long _rem = fd % __NFDBITS;
	return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
}

/*
 * This will unroll the loop for the normal constant cases (8 or 32 longs,
 * for 256 and 1024-bit fd_sets respectively)
 */
#undef __FD_ZERO
static __inline__ void __FD_ZERO(__kernel_fd_set *p)
{
	unsigned long *tmp = p->fds_bits;
	int i;

	if (__builtin_constant_p(__FDSET_LONGS)) {
		switch (__FDSET_LONGS) {
			case 32:
			  tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
			  tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
			  tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
			  tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
			  tmp[16] = 0; tmp[17] = 0; tmp[18] = 0; tmp[19] = 0;
			  tmp[20] = 0; tmp[21] = 0; tmp[22] = 0; tmp[23] = 0;
			  tmp[24] = 0; tmp[25] = 0; tmp[26] = 0; tmp[27] = 0;
			  tmp[28] = 0; tmp[29] = 0; tmp[30] = 0; tmp[31] = 0;
			  return;
			case 16:
			  tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
			  tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
			  tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
			  tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
			  return;
			case 8:
			  tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
			  tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
			  return;
			case 4:
			  tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
			  return;
		}
	}
	i = __FDSET_LONGS;
	while (i) {
		i--;
		*tmp = 0;
		tmp++;
	}
}

#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */

#endif /* !(__ARCH_SPARC64_POSIX_TYPES_H) */