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57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* raise.c - Generic raise implementation.
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Copyright (C) 2008-2024 Free Software Foundation, Inc.
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This file is part of the GNU Hurd.
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The GNU Hurd is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License
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as published by the Free Software Foundation; either version 3 of
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the License, or (at your option) any later version.
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The GNU Hurd 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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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 this program. If not, see
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<https://www.gnu.org/licenses/>. */
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#include <ldsodefs.h>
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#include <pthreadP.h>
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#include <signal.h>
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#include <unistd.h>
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#pragma weak __pthread_kill
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#pragma weak __pthread_self
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#pragma weak __pthread_threads
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#ifndef SHARED
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#pragma weak _dl_pthread_threads
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#endif
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int
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raise (int signo)
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{
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/* According to POSIX, if we implement threads (and we do), then
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"the effect of the raise() function shall be equivalent to
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calling: pthread_kill(pthread_self(), sig);" */
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if (__pthread_kill != NULL && GL (dl_pthread_threads) != NULL)
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{
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int err;
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err = __pthread_kill (__pthread_self (), signo);
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if (err)
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{
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errno = err;
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return -1;
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}
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return 0;
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}
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else
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return __kill (__getpid (), signo);
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}
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libc_hidden_def (raise)
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weak_alias (raise, gsignal)
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