• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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 */
50