/* 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