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Use size-dependant no. of words, with OPEN_MAX as default for fd_set size.

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Ben Gras 2006-10-06 15:45:13 +00:00
parent 1f3560229d
commit 140afcfb7d
1 changed files with 3 additions and 3 deletions
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6
include/sys/select.h
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@ -26,15 +26,15 @@ typedef u32_t fd_mask;
#endif #endif
/* We want to store FD_SETSIZE bits. */ /* We want to store FD_SETSIZE bits. */
#define _FDSETWORDS ((FD_SETSIZE+_FDSETBITSPERWORD-1)/_FDSETBITSPERWORD) #define _FDSETWORDS(b) (((b)+_FDSETBITSPERWORD-1)/_FDSETBITSPERWORD)
typedef struct { typedef struct {
fd_mask fds_bits[_FDSETWORDS]; fd_mask fds_bits[_FDSETWORDS(FD_SETSIZE)];
} fd_set; } fd_set;
_PROTOTYPE( int select, (int nfds, fd_set *readfds, fd_set *writefds, fd_set *errorfds, struct timeval *timeout) ); _PROTOTYPE( int select, (int nfds, fd_set *readfds, fd_set *writefds, fd_set *errorfds, struct timeval *timeout) );
#define FD_ZERO(s) do { int _i; for(_i = 0; _i < _FDSETWORDS; _i++) { (s)->fds_bits[_i] = 0; } } while(0) #define FD_ZERO(s) do { int _i; for(_i = 0; _i < _FDSETWORDS(FD_SETSIZE); _i++) { (s)->fds_bits[_i] = 0; } } while(0)
#define FD_SET(f, s) do { (s)->fds_bits[_FD_BITWORD(f)] |= _FD_BITMASK(f); } while(0) #define FD_SET(f, s) do { (s)->fds_bits[_FD_BITWORD(f)] |= _FD_BITMASK(f); } while(0)
#define FD_CLR(f, s) do { (s)->fds_bits[_FD_BITWORD(f)] &= ~(_FD_BITMASK(f)); } while(0) #define FD_CLR(f, s) do { (s)->fds_bits[_FD_BITWORD(f)] &= ~(_FD_BITMASK(f)); } while(0)
#define FD_ISSET(f, s) ((s)->fds_bits[_FD_BITWORD(f)] & _FD_BITMASK(f)) #define FD_ISSET(f, s) ((s)->fds_bits[_FD_BITWORD(f)] & _FD_BITMASK(f))