1 #ifndef _SYS_SELECT_H 2 #define _SYS_SELECT_H 3 #ifdef __cplusplus 4 extern "C" { 5 #endif 6 7 #include <features.h> 8 9 #define __NEED_size_t 10 #define __NEED_time_t 11 #define __NEED_suseconds_t 12 #define __NEED_struct_timeval 13 #define __NEED_struct_timespec 14 #define __NEED_sigset_t 15 16 #include <bits/alltypes.h> 17 18 #define FD_SETSIZE 1024 19 20 typedef unsigned long fd_mask; 21 22 typedef struct { 23 unsigned long fds_bits[FD_SETSIZE / 8 / sizeof(long)]; 24 } fd_set; 25 26 #define FD_ZERO(s) do { int __i; unsigned long *__b=(s)->fds_bits; for(__i=sizeof (fd_set)/sizeof (long); __i; __i--) *__b++=0; } while(0) 27 #define FD_SET(d, s) ((s)->fds_bits[(d)/(8*sizeof(long))] |= (1UL<<((d)%(8*sizeof(long))))) 28 #define FD_CLR(d, s) ((s)->fds_bits[(d)/(8*sizeof(long))] &= ~(1UL<<((d)%(8*sizeof(long))))) 29 #define FD_ISSET(d, s) !!((s)->fds_bits[(d)/(8*sizeof(long))] & (1UL<<((d)%(8*sizeof(long))))) 30 31 int select (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, struct timeval *__restrict); 32 int pselect (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, const struct timespec *__restrict, const sigset_t *__restrict); 33 34 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 35 #define NFDBITS (8*(int)sizeof(long)) 36 #endif 37 38 #if _REDIR_TIME64 39 __REDIR(select, __select_time64); 40 __REDIR(pselect, __pselect_time64); 41 #endif 42 43 #ifdef __cplusplus 44 } 45 #endif 46 #endif