mirror of https://code.videolan.org/videolan/vlc
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/*****************************************************************************
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* sigwait.c: POSIX sigwait() replacement
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*****************************************************************************
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* Copyright © 2017 VLC authors and VideoLAN
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*
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* Author: Julian Scheel <julian@jusst.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifdef __native_client__
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/* NaCl has no working sigwait, but SIGPIPE, for which vlc uses sigwait
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* currently, is never generated in NaCl. So for SIGPIPE it's safe to instantly
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* return, for all others run into an assertion. */
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#include <assert.h>
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#include <signal.h>
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int sigwait(const sigset_t *set, int *sig)
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{
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sigset_t s = *set;
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if (sigemptyset(&s))
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return 0;
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assert(sigismember(&s, SIGPIPE));
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sigdelset(&s, SIGPIPE);
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assert(sigemptyset(&s));
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*sig = SIGPIPE;
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return 0;
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}
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#else
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# error sigwait not implemented on your platform!
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#endif
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