1  /* Copyright (C) 2002-2023 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 <errno.h>
      19  #include "pthreadP.h"
      20  #include <shlib-compat.h>
      21  
      22  /* Global definition.  Needed in pthread_getconcurrency as well.  */
      23  int __concurrency_level;
      24  
      25  
      26  int
      27  __pthread_setconcurrency (int level)
      28  {
      29    if (level < 0)
      30      return EINVAL;
      31  
      32    __concurrency_level = level;
      33  
      34    /* XXX For ports which actually need to handle the concurrency level
      35       some more code is probably needed here.  */
      36  
      37    return 0;
      38  }
      39  versioned_symbol (libc, __pthread_setconcurrency, pthread_setconcurrency,
      40                    GLIBC_2_34);
      41  
      42  #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1, GLIBC_2_34)
      43  compat_symbol (libpthread, __pthread_setconcurrency, pthread_setconcurrency,
      44                 GLIBC_2_1);
      45  #endif