1  /* Special use of signals internally.  Stub version.
       2     Copyright (C) 2014-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #ifndef __INTERNAL_SIGNALS_H
      20  # define __INTERNAL_SIGNALS_H
      21  
      22  #include <signal.h>
      23  #include <sigsetops.h>
      24  #include <stdbool.h>
      25  #include <stddef.h>
      26  
      27  /* How many signal numbers need to be reserved for libpthread's private uses
      28     (SIGCANCEL and SIGSETXID).  */
      29  #define RESERVED_SIGRT  0
      30  
      31  static inline bool
      32  is_internal_signal (int sig)
      33  {
      34    return false;
      35  }
      36  
      37  static inline void
      38  clear_internal_signals (sigset_t *set)
      39  {
      40  }
      41  
      42  typedef sigset_t internal_sigset_t;
      43  
      44  #define internal_sigemptyset(__s)            __sigemptyset (__s)
      45  #define internal_sigaddset(__s, __i)         __sigaddset (__s, __i)
      46  #define internal_sigprocmask(__h, __s, __o)  __sigprocmask (__h, __s, __o)
      47  
      48  #endif /* __INTERNAL_SIGNALS_H  */