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168 | giacomo | 1 | #ifndef _LINUX_POSIX_TYPES_H |
2 | #define _LINUX_POSIX_TYPES_H |
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3 | |||
4 | #include <linux/stddef.h> |
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5 | |||
6 | /* |
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7 | * This allows for 1024 file descriptors: if NR_OPEN is ever grown |
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8 | * beyond that you'll have to change this too. But 1024 fd's seem to be |
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9 | * enough even for such "real" unices like OSF/1, so hopefully this is |
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10 | * one limit that doesn't have to be changed [again]. |
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11 | * |
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12 | * Note that POSIX wants the FD_CLEAR(fd,fdsetp) defines to be in |
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13 | * <sys/time.h> (and thus <linux/time.h>) - but this is a more logical |
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14 | * place for them. Solved by having dummy defines in <sys/time.h>. |
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15 | */ |
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16 | |||
17 | /* |
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18 | * Those macros may have been defined in <gnu/types.h>. But we always |
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19 | * use the ones here. |
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20 | */ |
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21 | #undef __NFDBITS |
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22 | #define __NFDBITS (8 * sizeof(unsigned long)) |
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23 | |||
24 | #undef __FD_SETSIZE |
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25 | #define __FD_SETSIZE 1024 |
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26 | |||
27 | #undef __FDSET_LONGS |
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28 | #define __FDSET_LONGS (__FD_SETSIZE/__NFDBITS) |
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29 | |||
30 | #undef __FDELT |
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31 | #define __FDELT(d) ((d) / __NFDBITS) |
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32 | |||
33 | #undef __FDMASK |
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34 | #define __FDMASK(d) (1UL << ((d) % __NFDBITS)) |
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35 | |||
36 | typedef struct { |
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37 | unsigned long fds_bits [__FDSET_LONGS]; |
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38 | } __kernel_fd_set; |
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39 | |||
40 | /* Type of a signal handler. */ |
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41 | typedef void (*__kernel_sighandler_t)(int); |
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42 | |||
43 | /* Type of a SYSV IPC key. */ |
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44 | typedef int __kernel_key_t; |
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45 | |||
46 | #include <asm/posix_types.h> |
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47 | |||
48 | #endif /* _LINUX_POSIX_TYPES_H */ |