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#ifndef _LINUX_POSIX_TYPES_H
#define _LINUX_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.
 */
 
#ifndef NULL
# define NULL		((void *) 0)
#endif
 
/*
 * This allows for 1024 file descriptors: if NR_OPEN is ever grown
 * beyond that you'll have to change this too. But 1024 fd's seem to be
 * enough even for such "real" unices like OSF/1, so hopefully this is
 * one limit that doesn't have to be changed [again].
 *
 * Note that POSIX wants the FD_CLEAR(fd,fdsetp) defines to be in
 * <sys/time.h> (and thus <linux/time.h>) - but this is a more logical
 * place for them. Solved by having dummy defines in <sys/time.h>.
 */
 
/*
 * Those macros may have been defined in <gnu/types.h>. But we always
 * use the ones here. 
 */
#undef __NFDBITS
#define __NFDBITS	(8 * sizeof(unsigned long))
 
#undef __FD_SETSIZE
#define __FD_SETSIZE	1024
 
#ifdef CONFIG_REDUCED_MEMORY
 /* Ideally __FD_SETSIZE should be reduced to match to match
    NR_OPEN & NR_FILES, but this caused problems */
#endif
 
#undef __FDSET_LONGS
#define __FDSET_LONGS	(__FD_SETSIZE/__NFDBITS)
 
#undef __FDELT
#define	__FDELT(d)	((d) / __NFDBITS)
 
#undef __FDMASK
#define	__FDMASK(d)	(1UL << ((d) % __NFDBITS))
 
typedef struct {
	unsigned long fds_bits [__FDSET_LONGS];
} __kernel_fd_set;
 
#include <asm/posix_types.h>
 
#endif /* _LINUX_POSIX_TYPES_H */