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 #include <signal.h> 18 #ifdef LOSCFG_FS_VFS 19 #include "vfs_config.h" 20 21 /* FD_SETSIZE is defined in "vfs_config.h" */ 22 #else 23 #define FD_SETSIZE 1024 24 #define FD_SET_TOTAL_SIZE FD_SETSIZE 25 #endif 26 27 typedef unsigned long fd_mask; 28 29 typedef struct { 30 unsigned long fds_bits[FD_SET_TOTAL_SIZE / 8 / sizeof(long)]; 31 } fd_set; 32 33 #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) 34 #define FD_SET(d, s) ((s)->fds_bits[(d)/(8*sizeof(long))] |= (1UL<<((d)%(8*sizeof(long))))) 35 #define FD_CLR(d, s) ((s)->fds_bits[(d)/(8*sizeof(long))] &= ~(1UL<<((d)%(8*sizeof(long))))) 36 #define FD_ISSET(d, s) !!((s)->fds_bits[(d)/(8*sizeof(long))] & (1UL<<((d)%(8*sizeof(long))))) 37 38 int select (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, struct timeval *__restrict); 39 int pselect (int, fd_set *__restrict, fd_set *__restrict, fd_set *__restrict, const struct timespec *__restrict, const sigset_t *__restrict); 40 41 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 42 #define NFDBITS (8*(int)sizeof(long)) 43 #endif 44 45 #if _REDIR_TIME64 46 __REDIR(select, __select_time64); 47 __REDIR(pselect, __pselect_time64); 48 #endif 49 50 #ifdef __cplusplus 51 } 52 #endif 53 #endif 54