diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/gen/posix_spawn/t_spawnattr.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libc/gen/posix_spawn/t_spawnattr.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libc/gen/posix_spawn/t_spawnattr.c b/contrib/netbsd-tests/lib/libc/gen/posix_spawn/t_spawnattr.c new file mode 100644 index 000000000000..8e4d30d037d4 --- /dev/null +++ b/contrib/netbsd-tests/lib/libc/gen/posix_spawn/t_spawnattr.c @@ -0,0 +1,177 @@ +/* $NetBSD: t_spawnattr.c,v 1.1 2012/02/13 21:03:08 martin Exp $ */ + +/*- + * Copyright (c) 2012 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Charles Zhang <charles@NetBSD.org> and + * Martin Husemann <martin@NetBSD.org>. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <atf-c.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <fcntl.h> +#include <sched.h> +#include <signal.h> +#include <spawn.h> +#include <unistd.h> +#include <sys/wait.h> + +static int get_different_scheduler(void); +static int get_different_priority(int scheduler); + +static const int schedulers[] = { + SCHED_OTHER, + SCHED_FIFO, + SCHED_RR +}; + +static int +get_different_scheduler(void) +{ + u_int i; + int scheduler; + + /* get current schedule policy */ + scheduler = sched_getscheduler(0); + for (i = 0; i < __arraycount(schedulers); i++) { + if (schedulers[i] == scheduler) + break; + } + ATF_REQUIRE_MSG(i < __arraycount(schedulers), + "Unknown current scheduler %d", scheduler); + + /* new scheduler */ + i++; + if (i >= __arraycount(schedulers)) + i = 0; + return schedulers[i]; +} + +static int +get_different_priority(int scheduler) +{ + int max, min, new, priority; + struct sched_param param; + + max = sched_get_priority_max(scheduler); + min = sched_get_priority_min(scheduler); + + sched_getparam(0, ¶m); + priority = param.sched_priority; + + /* + * Change numerical value of the priority, to ensure that it + * was set for the spawned child. + */ + new = priority + 1; + if (new > max) + new = min; + return new; +} + +ATF_TC(t_spawnattr); + +ATF_TC_HEAD(t_spawnattr, tc) +{ + atf_tc_set_md_var(tc, "require.user", "root"); + atf_tc_set_md_var(tc, "descr", + "Tests posix_spawn with scheduler attributes"); +} + +ATF_TC_BODY(t_spawnattr, tc) +{ + int pid, scheduler, child_scheduler, priority, status, err, pfd[2]; + char helper_arg[128]; + char * const args[] = { __UNCONST("h_spawnattr"), helper_arg, NULL }; + struct sched_param sp, child_sp; + sigset_t sig; + posix_spawnattr_t attr; + char helper[FILENAME_MAX]; + + /* + * create a pipe to controll the child + */ + err = pipe(pfd); + ATF_REQUIRE_MSG(err == 0, "could not create pipe, errno %d", errno); + sprintf(helper_arg, "%d", pfd[0]); + + posix_spawnattr_init(&attr); + + scheduler = get_different_scheduler(); + priority = get_different_priority(scheduler); + sp.sched_priority = priority; + + sigemptyset(&sig); + sigaddset(&sig, SIGUSR1); + + posix_spawnattr_setflags(&attr, POSIX_SPAWN_SETSCHEDULER | + POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETPGROUP | + POSIX_SPAWN_SETSIGMASK | POSIX_SPAWN_SETSIGDEF); + posix_spawnattr_setpgroup(&attr, 0); + posix_spawnattr_setschedparam(&attr, &sp); + posix_spawnattr_setschedpolicy(&attr, scheduler); + posix_spawnattr_setsigmask(&attr, &sig); + posix_spawnattr_setsigdefault(&attr, &sig); + + sprintf(helper, "%s/h_spawnattr", + atf_tc_get_config_var(tc, "srcdir")); + err = posix_spawn(&pid, helper, NULL, &attr, args, NULL); + ATF_REQUIRE_MSG(err == 0, "error %d", err); + + child_scheduler = sched_getscheduler(pid); + ATF_REQUIRE_MSG(scheduler == child_scheduler, + "scheduler = %d, child_scheduler = %d, pid %d, errno %d", + scheduler, child_scheduler, pid, errno); + + sched_getparam(pid, &child_sp); + ATF_REQUIRE_MSG(child_sp.sched_priority == sp.sched_priority, + "priority is: %d, but we requested: %d", + child_sp.sched_priority, sp.sched_priority); + + ATF_REQUIRE_MSG(pid == getpgid(pid), "child pid: %d, child pgid: %d", + pid, getpgid(pid)); + + /* ready, let child go */ + write(pfd[1], "q", 1); + close(pfd[0]); + close(pfd[1]); + + /* wait and check result from child */ + waitpid(pid, &status, 0); + ATF_REQUIRE(WIFEXITED(status) && WEXITSTATUS(status) == EXIT_SUCCESS); + + posix_spawnattr_destroy(&attr); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, t_spawnattr); + + return atf_no_error(); +} |