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Diffstat (limited to 'tests/sched_yield.c')
-rw-r--r-- | tests/sched_yield.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/tests/sched_yield.c b/tests/sched_yield.c new file mode 100644 index 0000000..255de34 --- /dev/null +++ b/tests/sched_yield.c @@ -0,0 +1,59 @@ +/* Schedule other threads to run. + Copyright (C) 2019-2022 Free Software Foundation, Inc. + + This file 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. + + This file 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 this program. If not, see <https://www.gnu.org/licenses/>. */ + +/* Written by Bruno Haible <bruno@clisp.org>, 2019. */ + +#include <config.h> + +/* Specification. */ +#include <sched.h> + +#if (defined _WIN32 && ! defined __CYGWIN__) && USE_WINDOWS_THREADS +/* Use Windows threads. */ + +# define WIN32_LEAN_AND_MEAN /* avoid including junk */ +# include <windows.h> + +int +sched_yield (void) +{ + Sleep (0); + return 0; +} + +#elif defined __KLIBC__ +/* OS/2 kLIBC implementation */ + +# define INCL_DOS +# include <os2.h> + +int +sched_yield (void) +{ + DosSleep (0); + return 0; +} + +#else +/* Provide a dummy implementation for single-threaded applications. */ + +int +sched_yield (void) +{ + return 0; +} + +#endif |