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58bd592536
The functions do not fail regardless of the argument value. Also, for Linux the return value is not correct on some platforms due the missing usage of INTERNAL_SYSCALL_ERROR_P / INTERNAL_SYSCALL_ERRNO macros. Checked on x86_64-linux-gnu, i686-linux-gnu, and sparc64-linux-gnu.
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/* Special use of signals internally. Stub version.
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Copyright (C) 2014-2019 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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<https://www.gnu.org/licenses/>. */
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#ifndef __INTERNAL_SIGNALS_H
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# define __INTERNAL_SIGNALS_H
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#include <signal.h>
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#include <sigsetops.h>
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#include <stdbool.h>
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static inline bool
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__is_internal_signal (int sig)
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{
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return false;
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}
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static inline void
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__clear_internal_signals (sigset_t *set)
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{
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}
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static inline void
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__libc_signal_block_all (sigset_t *set)
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{
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sigset_t allset;
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__sigfillset (&allset);
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__sigprocmask (SIG_BLOCK, &allset, set);
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}
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static inline void
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__libc_signal_block_app (sigset_t *set)
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{
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sigset_t allset;
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__sigfillset (&allset);
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__clear_internal_signals (&allset);
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__sigprocmask (SIG_BLOCK, &allset, set);
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}
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/* Restore current process signal mask. */
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static inline void
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__libc_signal_restore_set (const sigset_t *set)
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{
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__sigprocmask (SIG_SETMASK, set, NULL);
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}
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#endif /* __INTERNAL_SIGNALS_H */
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