94 lines
2.5 KiB
Go
94 lines
2.5 KiB
Go
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package goselect
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/**
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From: XCode's MacOSX10.10.sdk/System/Library/Frameworks/Kernel.framework/Versions/A/Headers/sys/select.h
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--
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// darwin/amd64 / 386
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sizeof(__int32_t) == 4
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--
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typedef __int32_t __fd_mask;
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#define FD_SETSIZE 1024
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#define __NFDBITS (sizeof(__fd_mask) * 8)
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#define __howmany(x, y) ((((x) % (y)) == 0) ? ((x) / (y)) : (((x) / (y)) + 1))
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typedef struct fd_set {
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__fd_mask fds_bits[__howmany(__FD_SETSIZE, __NFDBITS)];
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} fd_set;
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#define __FD_MASK(n) ((__fd_mask)1 << ((n) % __NFDBITS))
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#define FD_SET(n, p) ((p)->fds_bits[(n)/__NFDBITS] |= __FD_MASK(n))
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#define FD_CLR(n, p) ((p)->fds_bits[(n)/__NFDBITS] &= ~__FD_MASK(n))
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#define FD_ISSET(n, p) (((p)->fds_bits[(n)/__NFDBITS] & __FD_MASK(n)) != 0)
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*/
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/**
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From: /usr/include/i386-linux-gnu/sys/select.h
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--
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// linux/i686
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sizeof(long int) == 4
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--
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typedef long int __fd_mask;
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#define FD_SETSIZE 1024
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#define __NFDBITS (sizeof(__fd_mask) * 8)
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typedef struct fd_set {
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__fd_mask fds_bits[__FD_SETSIZE / __NFDBITS];
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} fd_set;
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#define __FD_MASK(n) ((__fd_mask)1 << ((n) % __NFDBITS))
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#define FD_SET(n, p) ((p)->fds_bits[(n)/__NFDBITS] |= __FD_MASK(n))
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#define FD_CLR(n, p) ((p)->fds_bits[(n)/__NFDBITS] &= ~__FD_MASK(n))
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#define FD_ISSET(n, p) (((p)->fds_bits[(n)/__NFDBITS] & __FD_MASK(n)) != 0)
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*/
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/**
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From: /usr/include/x86_64-linux-gnu/sys/select.h
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--
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// linux/amd64
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sizeof(long int) == 8
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--
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typedef long int __fd_mask;
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#define FD_SETSIZE 1024
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#define __NFDBITS (sizeof(__fd_mask) * 8)
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typedef struct fd_set {
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__fd_mask fds_bits[__FD_SETSIZE / __NFDBITS];
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} fd_set;
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#define __FD_MASK(n) ((__fd_mask)1 << ((n) % __NFDBITS))
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#define FD_SET(n, p) ((p)->fds_bits[(n)/__NFDBITS] |= __FD_MASK(n))
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#define FD_CLR(n, p) ((p)->fds_bits[(n)/__NFDBITS] &= ~__FD_MASK(n))
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#define FD_ISSET(n, p) (((p)->fds_bits[(n)/__NFDBITS] & __FD_MASK(n)) != 0)
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*/
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/**
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From: /usr/include/sys/select.h
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--
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// freebsd/amd64
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sizeof(unsigned long) == 8
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--
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typedef unsigned long __fd_mask;
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#define FD_SETSIZE 1024U
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#define __NFDBITS (sizeof(__fd_mask) * 8)
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#define _howmany(x, y) (((x) + ((y) - 1)) / (y))
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typedef struct fd_set {
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__fd_mask fds_bits[_howmany(FD_SETSIZE, __NFDBITS)];
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} fd_set;
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#define __FD_MASK(n) ((__fd_mask)1 << ((n) % __NFDBITS))
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#define FD_SET(n, p) ((p)->fds_bits[(n)/__NFDBITS] |= __FD_MASK(n))
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#define FD_CLR(n, p) ((p)->fds_bits[(n)/__NFDBITS] &= ~__FD_MASK(n))
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#define FD_ISSET(n, p) (((p)->fds_bits[(n)/__NFDBITS] & __FD_MASK(n)) != 0)
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*/
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