diff options
Diffstat (limited to 'nptl/tst-default-attr.c')
-rw-r--r-- | nptl/tst-default-attr.c | 385 |
1 files changed, 0 insertions, 385 deletions
diff --git a/nptl/tst-default-attr.c b/nptl/tst-default-attr.c deleted file mode 100644 index eff703ca23..0000000000 --- a/nptl/tst-default-attr.c +++ /dev/null @@ -1,385 +0,0 @@ -/* Verify that pthread_[gs]etattr_default_np work correctly. - - Copyright (C) 2013-2017 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 <pthread.h> -#include <stdio.h> -#include <stdint.h> -#include <string.h> -#include <unistd.h> -#include <errno.h> -#include <stdbool.h> - -#define RETURN_IF_FAIL(f, ...) \ - ({ \ - int ret = f (__VA_ARGS__); \ - if (ret != 0) \ - { \ - printf ("%s:%d: %s returned %d (errno = %d)\n", __FILE__, __LINE__, \ - #f, ret, errno); \ - return ret; \ - } \ - }) - -static int (*verify_result) (pthread_attr_t *); -static size_t stacksize = 1024 * 1024; -static size_t guardsize; -static bool do_join = true; -static int running = 0; -static int detach_failed = 0; -static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER; -static pthread_cond_t c = PTHREAD_COND_INITIALIZER; - -static void * -thr (void *unused __attribute__ ((unused))) -{ - pthread_attr_t attr; - int ret; - - memset (&attr, 0xab, sizeof attr); - /* To verify that the pthread_setattr_default_np worked. */ - if ((ret = pthread_getattr_default_np (&attr)) != 0) - { - printf ("pthread_getattr_default_np failed: %s\n", strerror (ret)); - goto out; - } - - if ((ret = (*verify_result) (&attr)) != 0) - goto out; - - memset (&attr, 0xab, sizeof attr); - /* To verify that the attributes actually got applied. */ - if ((ret = pthread_getattr_np (pthread_self (), &attr)) != 0) - { - printf ("pthread_getattr_default_np failed: %s\n", strerror (ret)); - goto out; - } - - ret = (*verify_result) (&attr); - -out: - if (!do_join) - { - pthread_mutex_lock (&m); - running--; - pthread_cond_signal (&c); - pthread_mutex_unlock (&m); - - detach_failed |= ret; - } - - return (void *) (uintptr_t) ret; -} - -static int -run_threads (const pthread_attr_t *attr) -{ - pthread_t t; - void *tret = NULL; - - RETURN_IF_FAIL (pthread_setattr_default_np, attr); - - /* Run twice to ensure that the attributes do not get overwritten in the - first run somehow. */ - for (int i = 0; i < 2; i++) - { - RETURN_IF_FAIL (pthread_create, &t, NULL, thr, NULL); - if (do_join) - RETURN_IF_FAIL (pthread_join, t, &tret); - else - { - pthread_mutex_lock (&m); - running++; - pthread_mutex_unlock (&m); - } - - if (tret != NULL) - { - puts ("Thread failed"); - return 1; - } - } - - /* Stay in sync for detached threads and get their status. */ - while (!do_join) - { - pthread_mutex_lock (&m); - if (running == 0) - { - pthread_mutex_unlock (&m); - break; - } - pthread_cond_wait (&c, &m); - pthread_mutex_unlock (&m); - } - - return 0; -} - -static int -verify_detach_result (pthread_attr_t *attr) -{ - int state; - - RETURN_IF_FAIL (pthread_attr_getdetachstate, attr, &state); - - if (state != PTHREAD_CREATE_DETACHED) - { - puts ("failed to set detach state"); - return 1; - } - - return 0; -} - -static int -do_detach_test (void) -{ - pthread_attr_t attr; - - do_join = false; - RETURN_IF_FAIL (pthread_attr_init, &attr); - RETURN_IF_FAIL (pthread_attr_setdetachstate, &attr, PTHREAD_CREATE_DETACHED); - - RETURN_IF_FAIL (run_threads, &attr); - return detach_failed; -} - -static int -verify_affinity_result (pthread_attr_t *attr) -{ - cpu_set_t cpuset; - - RETURN_IF_FAIL (pthread_attr_getaffinity_np, attr, sizeof (cpuset), &cpuset); - if (!CPU_ISSET (0, &cpuset)) - { - puts ("failed to set cpu affinity"); - return 1; - } - - return 0; -} - -static int -do_affinity_test (void) -{ - pthread_attr_t attr; - - RETURN_IF_FAIL (pthread_attr_init, &attr); - - /* Processor affinity. Like scheduling policy, this could fail if the user - does not have the necessary privileges. So we only spew a warning if - pthread_create fails with EPERM. A computer has at least one CPU. */ - cpu_set_t cpuset; - CPU_ZERO (&cpuset); - CPU_SET (0, &cpuset); - RETURN_IF_FAIL (pthread_attr_setaffinity_np, &attr, sizeof (cpuset), &cpuset); - - int ret = run_threads (&attr); - - if (ret == EPERM) - { - printf ("Skipping CPU Affinity test: %s\n", strerror (ret)); - return 0; - } - else if (ret != 0) - return ret; - - return 0; -} - -static int -verify_sched_result (pthread_attr_t *attr) -{ - int inherited, policy; - struct sched_param param; - - RETURN_IF_FAIL (pthread_attr_getinheritsched, attr, &inherited); - if (inherited != PTHREAD_EXPLICIT_SCHED) - { - puts ("failed to set EXPLICIT_SCHED (%d != %d)"); - return 1; - } - - RETURN_IF_FAIL (pthread_attr_getschedpolicy, attr, &policy); - if (policy != SCHED_RR) - { - printf ("failed to set SCHED_RR (%d != %d)\n", policy, SCHED_RR); - return 1; - } - - RETURN_IF_FAIL (pthread_attr_getschedparam, attr, ¶m); - if (param.sched_priority != 42) - { - printf ("failed to set sched_priority (%d != %d)\n", - param.sched_priority, 42); - return 1; - } - - return 0; -} - -static int -do_sched_test (void) -{ - pthread_attr_t attr; - - RETURN_IF_FAIL (pthread_attr_init, &attr); - - /* Scheduling policy. Note that we don't always test these since it's - possible that the user the tests run as don't have the appropriate - privileges. */ - RETURN_IF_FAIL (pthread_attr_setinheritsched, &attr, PTHREAD_EXPLICIT_SCHED); - RETURN_IF_FAIL (pthread_attr_setschedpolicy, &attr, SCHED_RR); - - struct sched_param param; - param.sched_priority = 42; - RETURN_IF_FAIL (pthread_attr_setschedparam, &attr, ¶m); - - int ret = run_threads (&attr); - - if (ret == EPERM) - { - printf ("Skipping Scheduler Attributes test: %s\n", strerror (ret)); - return 0; - } - else if (ret != 0) - return ret; - - return 0; -} - -static int -verify_guardsize_result (pthread_attr_t *attr) -{ - size_t guard; - - RETURN_IF_FAIL (pthread_attr_getguardsize, attr, &guard); - - if (guardsize != guard) - { - printf ("failed to set guardsize (%zu, %zu)\n", guardsize, guard); - return 1; - } - - return 0; -} - -static int -do_guardsize_test (void) -{ - long int pagesize = sysconf (_SC_PAGESIZE); - pthread_attr_t attr; - - if (pagesize < 0) - { - printf ("sysconf failed: %s\n", strerror (errno)); - return 1; - } - - RETURN_IF_FAIL (pthread_getattr_default_np, &attr); - - /* Increase default guardsize by a page. */ - RETURN_IF_FAIL (pthread_attr_getguardsize, &attr, &guardsize); - guardsize += pagesize; - RETURN_IF_FAIL (pthread_attr_setguardsize, &attr, guardsize); - RETURN_IF_FAIL (run_threads, &attr); - - return 0; -} - -static int -verify_stacksize_result (pthread_attr_t *attr) -{ - size_t stack; - - RETURN_IF_FAIL (pthread_attr_getstacksize, attr, &stack); - - if (stacksize != stack) - { - printf ("failed to set default stacksize (%zu, %zu)\n", stacksize, stack); - return 1; - } - - return 0; -} - -static int -do_stacksize_test (void) -{ - long int pagesize = sysconf (_SC_PAGESIZE); - pthread_attr_t attr; - - if (pagesize < 0) - { - printf ("sysconf failed: %s\n", strerror (errno)); - return 1; - } - - /* Perturb the size by a page so that we're not aligned on the 64K boundary. - pthread_create does this perturbation on x86 to avoid causing the 64k - aliasing conflict. We want to prevent pthread_create from doing that - since it is not consistent for all architectures. */ - stacksize += pagesize; - - RETURN_IF_FAIL (pthread_attr_init, &attr); - - /* Run twice to ensure that we don't give a false positive. */ - RETURN_IF_FAIL (pthread_attr_setstacksize, &attr, stacksize); - RETURN_IF_FAIL (run_threads, &attr); - stacksize *= 2; - RETURN_IF_FAIL (pthread_attr_setstacksize, &attr, stacksize); - RETURN_IF_FAIL (run_threads, &attr); - return 0; -} - -/* We test each attribute separately because sched and affinity tests may need - additional user privileges that may not be available during the test run. - Each attribute test is a set of two functions, viz. a function to set the - default attribute (do_foo_test) and another to verify its result - (verify_foo_result). Each test spawns a thread and checks (1) if the - attribute values were applied correctly and (2) if the change in the default - value reflected. */ -static int -do_test (void) -{ - puts ("stacksize test"); - verify_result = verify_stacksize_result; - RETURN_IF_FAIL (do_stacksize_test); - - puts ("guardsize test"); - verify_result = verify_guardsize_result; - RETURN_IF_FAIL (do_guardsize_test); - - puts ("sched test"); - verify_result = verify_sched_result; - RETURN_IF_FAIL (do_sched_test); - - puts ("affinity test"); - verify_result = verify_affinity_result; - RETURN_IF_FAIL (do_affinity_test); - - puts ("detach test"); - verify_result = verify_detach_result; - RETURN_IF_FAIL (do_detach_test); - - return 0; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" |