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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2016-08-20 19:50:45 +0200 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2016-08-20 19:50:45 +0200 |
commit | 4dd9e35bfd35d3138bc44169baba098005bad51e (patch) | |
tree | a4939c43a9c3fe00eb27f023e14acc5e1fe8808c /nptl/tst-bad-schedattr.c | |
parent | bd42a4599d1b6f77bcfe1e4f67b7cbd9e1cb2dfd (diff) | |
parent | f76453c31593957fec1a99b986bfa5506618b79c (diff) |
Merge commit 'refs/top-bases/t/bigmem' into t/bigmem
Diffstat (limited to 'nptl/tst-bad-schedattr.c')
-rw-r--r-- | nptl/tst-bad-schedattr.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/nptl/tst-bad-schedattr.c b/nptl/tst-bad-schedattr.c new file mode 100644 index 0000000000..c2482b10cf --- /dev/null +++ b/nptl/tst-bad-schedattr.c @@ -0,0 +1,97 @@ +/* Test that pthread_create diagnoses invalid scheduling parameters. + Copyright (C) 2014-2015 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 + <http://www.gnu.org/licenses/>. */ + +#include <assert.h> +#include <errno.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + + +static void * +thread_function (void *arg) +{ + abort (); +} + + +static int +do_test (void) +{ +#if !defined SCHED_FIFO || !defined SCHED_OTHER + puts ("SCHED_FIFO or SCHED_OTHER not available at compile time"); + return 0; /* 77 */ +#else + + int err; + +#define TRY(func, arglist) \ + if ((err = func arglist) != 0) \ + { \ + printf ("%s: %s\n", #func, strerror (err)); \ + return 2; \ + } + + int fifo_max = sched_get_priority_max (SCHED_FIFO); + if (fifo_max == -1) + { + assert (errno == ENOTSUP || errno == ENOSYS); + puts ("SCHED_FIFO not supported, cannot test"); + return 0; /* 77 */ + } + + int other_max = sched_get_priority_max (SCHED_OTHER); + if (other_max == -1) + { + assert (errno == ENOTSUP || errno == ENOSYS); + puts ("SCHED_OTHER not supported, cannot test"); + return 0; /* 77 */ + } + + assert (fifo_max > other_max); + + pthread_attr_t attr; + TRY (pthread_attr_init, (&attr)); + TRY (pthread_attr_setinheritsched, (&attr, PTHREAD_EXPLICIT_SCHED)); + TRY (pthread_attr_setschedpolicy, (&attr, SCHED_FIFO)); + + /* This value is chosen so as to be valid for SCHED_FIFO but invalid for + SCHED_OTHER. */ + struct sched_param param = { .sched_priority = other_max + 1 }; + TRY (pthread_attr_setschedparam, (&attr, ¶m)); + + TRY (pthread_attr_setschedpolicy, (&attr, SCHED_OTHER)); + + /* Now ATTR has a sched_param that is invalid for its policy. */ + pthread_t th; + err = pthread_create (&th, &attr, &thread_function, NULL); + if (err != EINVAL) + { + printf ("pthread_create returned %d (%s), expected %d (EINVAL: %s)\n", + err, strerror (err), EINVAL, strerror (EINVAL)); + return 1; + } + + return 0; +#endif +} + + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |