1 #ifndef _LINUX_POSIX_TYPES_H

     2 #define _LINUX_POSIX_TYPES_H

     3 

     4 #include <linux/stddef.h>

     5 

     6 /*

     7  * This allows for 1024 file descriptors: if NR_OPEN is ever grown

     8  * beyond that you'll have to change this too. But 1024 fd's seem to be

     9  * enough even for such "real" unices like OSF/1, so hopefully this is

    10  * one limit that doesn't have to be changed [again].

    11  *

    12  * Note that POSIX wants the FD_CLEAR(fd,fdsetp) defines to be in

    13  * <sys/time.h> (and thus <linux/time.h>) - but this is a more logical

    14  * place for them. Solved by having dummy defines in <sys/time.h>.

    15  */

    16 

    17 /*

    18  * Those macros may have been defined in <gnu/types.h>. But we always

    19  * use the ones here. 

    20  */

    21 #undef __NFDBITS

    22 #define __NFDBITS	(8 * sizeof(unsigned long))

    23 

    24 #undef __FD_SETSIZE

    25 #define __FD_SETSIZE	1024

    26 

    27 #undef __FDSET_LONGS

    28 #define __FDSET_LONGS	(__FD_SETSIZE/__NFDBITS)

    29 

    30 #undef __FDELT

    31 #define	__FDELT(d)	((d) / __NFDBITS)

    32 

    33 #undef __FDMASK

    34 #define	__FDMASK(d)	(1UL << ((d) % __NFDBITS))

    35 

    36 typedef struct {

    37 	unsigned long fds_bits [__FDSET_LONGS];

    38 } __kernel_fd_set;

    39 

    40 /* Type of a signal handler.  */

    41 typedef void (*__kernel_sighandler_t)(int);

    42 

    43 /* Type of a SYSV IPC key.  */

    44 typedef int __kernel_key_t;

    45 typedef int __kernel_mqd_t;

    46 

    47 #include <asm/posix_types.h>

    48 

    49 #endif /* _LINUX_POSIX_TYPES_H */