cosmopolitan/libc/sock/select.h
Justine Tunney fa20edc44d
Reduce header complexity
- Remove most __ASSEMBLER__ __LINKER__ ifdefs
- Rename libc/intrin/bits.h to libc/serialize.h
- Block pthread cancelation in fchmodat() polyfill
- Remove `clang-format off` statements in third_party
2023-11-28 14:39:42 -08:00

27 lines
1,009 B
C

#ifndef COSMOPOLITAN_LIBC_SOCK_SELECT_H_
#define COSMOPOLITAN_LIBC_SOCK_SELECT_H_
#include "libc/calls/struct/sigset.h"
#include "libc/calls/struct/timespec.h"
#include "libc/calls/struct/timeval.h"
#include "libc/str/str.h"
#define FD_SETSIZE 1024 /* it's 64 on windows */
COSMOPOLITAN_C_START_
typedef struct fd_set {
unsigned long fds_bits[FD_SETSIZE / (sizeof(long) * 8)];
} fd_set;
#define FD_ISSET(FD, SET) (((SET)->fds_bits[(FD) >> 6] >> ((FD)&63)) & 1)
#define FD_SET(FD, SET) ((SET)->fds_bits[(FD) >> 6] |= 1ull << ((FD)&63))
#define FD_CLR(FD, SET) ((SET)->fds_bits[(FD) >> 6] &= ~(1ull << ((FD)&63)))
#define FD_ZERO(SET) bzero((SET)->fds_bits, sizeof((SET)->fds_bits))
#define FD_SIZE(bits) (((bits) + (sizeof(long) * 8) - 1) / sizeof(long))
int select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
int pselect(int, fd_set *, fd_set *, fd_set *, const struct timespec *,
const sigset_t *);
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_SOCK_SELECT_H_ */