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37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/* Examine and change blocked signals for a thread. Generic POSIX version.
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Copyright (C) 2014-2017 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 <pthreadP.h>
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#if defined SIGCANCEL || defined SIGTIMER || defined SIGSETXID
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# error "This implementation assumes no internal-only signal numbers."
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#endif
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int
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pthread_sigmask (int how, const sigset_t *newmask, sigset_t *oldmask)
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{
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/* Here we assume that sigprocmask actually does everything right.
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The only difference is the return value protocol. */
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int result = sigprocmask (how, newmask, oldmask);
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if (result < 0)
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result = errno;
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return result;
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}
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