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eeb20775d2
This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
27 lines
1 KiB
C
27 lines
1 KiB
C
#ifndef COSMOPOLITAN_LIBC_SOCK_SELECT_H_
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#define COSMOPOLITAN_LIBC_SOCK_SELECT_H_
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#include "libc/calls/struct/sigset.h"
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#include "libc/calls/struct/timespec.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/str/str.h"
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#define FD_SETSIZE 1024 /* it's 64 on windows */
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COSMOPOLITAN_C_START_
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typedef struct fd_set {
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unsigned long fds_bits[FD_SETSIZE / (sizeof(long) * 8)];
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} fd_set;
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#define FD_ISSET(FD, SET) (((SET)->fds_bits[(FD) >> 6] >> ((FD)&63)) & 1)
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#define FD_SET(FD, SET) ((SET)->fds_bits[(FD) >> 6] |= 1ull << ((FD)&63))
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#define FD_CLR(FD, SET) ((SET)->fds_bits[(FD) >> 6] &= ~(1ull << ((FD)&63)))
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#define FD_ZERO(SET) bzero((SET)->fds_bits, sizeof((SET)->fds_bits))
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#define FD_SIZE(bits) (((bits) + (sizeof(long) * 8) - 1) / sizeof(long))
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int select(int, fd_set *, fd_set *, fd_set *, struct timeval *) libcesque;
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int pselect(int, fd_set *, fd_set *, fd_set *, const struct timespec *,
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const sigset_t *) libcesque;
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_SOCK_SELECT_H_ */
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