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- /* System-specific extensions of <signal.h>, Linux version.
- Copyright (C) 2019-2021 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
- #ifndef _SIGNAL_H
- # error "Never include <bits/signal_ext.h> directly; use <signal.h> instead."
- #endif
- #ifdef __USE_GNU
- /* Send SIGNAL to the thread TID in the thread group (process)
- identified by TGID. This function behaves like kill, but also
- fails with ESRCH if the specified TID does not belong to the
- specified thread group. */
- extern int tgkill (__pid_t __tgid, __pid_t __tid, int __signal);
- #endif /* __USE_GNU */
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