nptl/pthread_testcancel.c

   1 /* Copyright (C) 2002-2022 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <stdlib.h>
  19 #include "pthreadP.h"
  20 #include <shlib-compat.h>
  21
  22 void
  23 ___pthread_testcancel (void)
  24 {
  25   struct pthread *self = THREAD_SELF;
  26   int cancelhandling = THREAD_GETMEM (self, cancelhandling);
  27   if (self->cancelstate == PTHREAD_CANCEL_ENABLE
  28       && (cancelhandling & CANCELED_BITMASK)
  29       && !(cancelhandling & EXITING_BITMASK)
  30       && !(cancelhandling & TERMINATED_BITMASK))
  31     {
  32       THREAD_SETMEM (self, result, PTHREAD_CANCELED);
  33       __do_cancel ();
  34     }
  35 }
  36 versioned_symbol (libc, ___pthread_testcancel, pthread_testcancel, GLIBC_2_34);
  37 libc_hidden_ver (___pthread_testcancel, __pthread_testcancel)
  38 #ifndef SHARED
  39 strong_alias (___pthread_testcancel, __pthread_testcancel)
  40 #endif
  41
  42 #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34)
  43 compat_symbol (libc, ___pthread_testcancel, pthread_testcancel, GLIBC_2_0);
  44 #endif