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ad1065e213
This causes problems in code of the form
if (/* condition */)
FD_ZERO(&thing);
else
do_other_thing();
Wrapping the call to memset() in a do/while block fixes the issue.
23 lines
617 B
C
23 lines
617 B
C
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#define FD_SETSIZE 1024
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#define FD_ZERO(set) \
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do { \
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memset((set), 0, sizeof(fd_set)); \
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} while (0)
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#define FD_CLR(fd, set) ((set)->fds_bits[(fd / 8)] &= ~(1 << (fd) % 8))
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#define FD_SET(fd, set) ((set)->fds_bits[(fd / 8)] |= (1 << (fd) % 8))
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#define FD_ISSET(fd, set) ((set)->fds_bits[(fd / 8)] & (1 << (fd) % 8))
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struct __fd_set {
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unsigned char fds_bits[FD_SETSIZE / 8];
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};
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typedef struct __fd_set fd_set;
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