2020-06-15 14:18:57 +00:00
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ 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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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/sigset.h"
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#include "libc/dce.h"
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#include "libc/sysv/errfuns.h"
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/**
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* Changes program signal blocking state, e.g.:
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*
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2020-12-26 10:09:07 +00:00
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* sigset_t oldmask;
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* sigprocmask(SIG_BLOCK, &kSigsetFull, &oldmask);
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* sigprocmask(SIG_SETMASK, &oldmask, NULL);
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2020-06-15 14:18:57 +00:00
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*
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* @param how can be SIG_BLOCK (U), SIG_UNBLOCK (/), SIG_SETMASK (=)
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* @param set is the new mask content (optional)
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* @param oldset will receive the old mask (optional) and can't overlap
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* @return 0 on success, or -1 w/ errno
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* @asyncsignalsafe
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*/
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int sigprocmask(int how, const sigset_t *opt_set, sigset_t *opt_out_oldset) {
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if (!IsWindows()) {
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return sigprocmask$sysv(how, opt_set, opt_out_oldset, 8);
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} else {
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return enosys(); /* TODO(jart): Implement me! */
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}
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}
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