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51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/* Handle real-time signal allocation. NPTL version.
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Copyright (C) 2015-2018 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 <signal.h>
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#include <nptl/pthreadP.h>
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/* Up to three special signals might be used privately by libpthread.
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Figure out how many unique ones are actually used. */
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#ifdef SIGCANCEL
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# define SIGCANCEL_CONSUMES 1
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#else
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# define SIGCANCEL_CONSUMES 0
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#endif
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#if defined SIGTIMER && (!defined SIGCANCEL || SIGTIMER != SIGCANCEL)
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# define SIGTIMER_CONSUMES 1
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#else
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# define SIGTIMER_CONSUMES 0
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#endif
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#if (defined SIGSETXID \
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&& (!defined SIGCANCEL || SIGSETXID != SIGCANCEL) \
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&& (!defined SIGTIMER || SIGSETXID != SIGTIMER))
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# define SIGSETXID_CONSUMES 1
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#else
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# define SIGSETXID_CONSUMES 0
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#endif
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/* This tells the generic code (included below) how many signal
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numbers need to be reserved for libpthread's private uses. */
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#define RESERVED_SIGRT \
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(SIGCANCEL_CONSUMES + SIGTIMER_CONSUMES + SIGSETXID_CONSUMES)
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#include <signal/allocrtsig.c>
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