1 /* 2 * Not all machines define FD_SET in sys/types.h 3 */ 4 #ifndef NTP_SELECT_H 5 #define NTP_SELECT_H /* note: tested by include/l_stdlib.h */ 6 7 /* Was: (defined(RS6000)||defined(SYS_PTX))&&!defined(_BSD) */ 8 /* Could say: !defined(FD_SET) && defined(HAVE_SYS_SELECT_H) */ 9 /* except FD_SET can legitimately be a typedef... */ 10 #if defined(HAVE_SYS_SELECT_H) && !defined(_BSD) 11 # ifndef SYS_VXWORKS 12 # include <sys/select.h> 13 # else 14 # include <sockLib.h> 15 extern int select(int width, fd_set *pReadFds, fd_set *pWriteFds, 16 fd_set *pExceptFds, struct timeval *pTimeOut); 17 # endif 18 #endif 19 20 #if !defined(FD_SET) 21 # define NFDBITS 32 22 # define FD_SETSIZE 32 23 # define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS))) 24 # define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS))) 25 # define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS))) 26 # define FD_ZERO(p) memset((p), 0, sizeof(*(p))) 27 #endif 28 29 #if defined(VMS) 30 typedef struct { 31 unsigned int fds_bits[1]; 32 } fd_set; 33 #endif 34 35 #endif /* NTP_SELECT_H */ 36