From b05de1040009d0d07a5a2e2765cffe554ffbe6ac Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Mon, 13 Jan 2020 19:58:28 +0000 Subject: C11 threads: Move implementation to sysdeps/pthread so it gets shared by nptl and htl. Also add htl versions of thrd_current and thrd_yield. Reviewed-by: Adhemerval Zanella --- sysdeps/pthread/tst-cnd-basic.c | 80 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 sysdeps/pthread/tst-cnd-basic.c (limited to 'sysdeps/pthread/tst-cnd-basic.c') diff --git a/sysdeps/pthread/tst-cnd-basic.c b/sysdeps/pthread/tst-cnd-basic.c new file mode 100644 index 0000000..041762a --- /dev/null +++ b/sysdeps/pthread/tst-cnd-basic.c @@ -0,0 +1,80 @@ +/* C11 threads condition variable tests. + Copyright (C) 2018-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library 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. + + The GNU C Library 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 the GNU C Library; if not, see + . */ + +#include +#include +#include + +#include + +/* Shared condition variable between child and parent. */ +static cnd_t cond; + +/* Mutex needed to signal and wait threads. */ +static mtx_t mutex; + +static int +signal_parent (void) +{ + /* Acquire the lock so that cnd_signal does not run until + cnd_timedwait has been called. */ + if (mtx_lock (&mutex) != thrd_success) + FAIL_EXIT1 ("mtx_lock failed"); + if (cnd_signal (&cond) != thrd_success) + FAIL_EXIT1 ("cnd_signal"); + if (mtx_unlock (&mutex) != thrd_success) + FAIL_EXIT1 ("mtx_unlock"); + + thrd_exit (thrd_success); +} + +static int +do_test (void) +{ + thrd_t id; + + if (cnd_init (&cond) != thrd_success) + FAIL_EXIT1 ("cnd_init failed"); + if (mtx_init (&mutex, mtx_plain) != thrd_success) + FAIL_EXIT1 ("mtx_init failed"); + + if (mtx_lock (&mutex) != thrd_success) + FAIL_EXIT1 ("mtx_lock failed"); + + if (thrd_create (&id, (thrd_start_t) signal_parent, NULL) + != thrd_success) + FAIL_EXIT1 ("thrd_create failed"); + + if (cnd_wait (&cond, &mutex) != thrd_success) + FAIL_EXIT1 ("cnd_wait failed"); + + /* Joining is not mandatory here, but still done to assure child thread + ends correctly. */ + if (thrd_join (id, NULL) != thrd_success) + FAIL_EXIT1 ("thrd_join failed"); + + if (mtx_unlock (&mutex) != thrd_success) + FAIL_EXIT1 ("mtx_unlock"); + + mtx_destroy (&mutex); + cnd_destroy (&cond); + + return 0; +} + +#include -- cgit v1.1