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48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* Copyright (C) 1991, 1996, 1997, 1998, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <signal.h>
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#include <stddef.h>
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#include <unistd.h>
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/* Change the set of blocked signals to SET,
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wait until a signal arrives, and restore the set of blocked signals. */
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int
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__sigsuspend (set)
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const sigset_t *set;
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{
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int mask;
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int sig;
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if (set == NULL)
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{
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__set_errno (EINVAL);
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return -1;
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}
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mask = 0;
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for (sig = 1; sig <= NSIG; ++sig)
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if (__sigismember (set, sig))
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mask |= sigmask (sig);
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return __sigpause (mask, 0);
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}
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libc_hidden_def (__sigsuspend)
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weak_alias (__sigsuspend, sigsuspend)
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