root/maint/gnulib/lib/sched_yield.c

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DEFINITIONS

This source file includes following definitions.
  1. sched_yield
  2. sched_yield
  3. sched_yield

   1 /* Schedule other threads to run.
   2    Copyright (C) 2019-2021 Free Software Foundation, Inc.
   3 
   4    This file is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as
   6    published by the Free Software Foundation; either version 2.1 of the
   7    License, or (at your option) any later version.
   8 
   9    This file 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
  12    GNU Lesser General Public License for more details.
  13 
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16 
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2019.  */
  18 
  19 #include <config.h>
  20 
  21 /* Specification.  */
  22 #include <sched.h>
  23 
  24 #if (defined _WIN32 && ! defined __CYGWIN__) && USE_WINDOWS_THREADS
  25 /* Use Windows threads.  */
  26 
  27 # define WIN32_LEAN_AND_MEAN  /* avoid including junk */
  28 # include <windows.h>
  29 
  30 int
  31 sched_yield (void)
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  32 {
  33   Sleep (0);
  34   return 0;
  35 }
  36 
  37 #elif defined __KLIBC__
  38 /* OS/2 kLIBC implementation */
  39 
  40 # define INCL_DOS
  41 # include <os2.h>
  42 
  43 int
  44 sched_yield (void)
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  45 {
  46   DosSleep (0);
  47   return 0;
  48 }
  49 
  50 #else
  51 /* Provide a dummy implementation for single-threaded applications.  */
  52 
  53 int
  54 sched_yield (void)
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  55 {
  56   return 0;
  57 }
  58 
  59 #endif

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