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This checks whether multiple concurrent waiters all get notified by the state server. Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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Christian Brauner
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Dec 15, 2017
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/* liblxcapi | ||
* | ||
* Copyright © 2017 Christian Brauner <christian.brauner@ubuntu.com>. | ||
* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License version 2, as | ||
* published by the Free Software Foundation. | ||
* | ||
* This program 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 General Public License for more details. | ||
* | ||
* You should have received a copy of the GNU General Public License along | ||
* with this program; if not, write to the Free Software Foundation, Inc., | ||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
*/ | ||
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#include <alloca.h> | ||
#include <errno.h> | ||
#include <pthread.h> | ||
#include <sched.h> | ||
#include <signal.h> | ||
#include <stdio.h> | ||
#include <string.h> | ||
#include <unistd.h> | ||
#include <sys/reboot.h> | ||
#include <sys/types.h> | ||
#include <sys/wait.h> | ||
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#include "lxc/lxccontainer.h" | ||
#include "lxctest.h" | ||
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struct thread_args { | ||
int thread_id; | ||
int timeout; | ||
bool success; | ||
struct lxc_container *c; | ||
}; | ||
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void *state_wrapper(void *data) | ||
{ | ||
struct thread_args *args = data; | ||
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lxc_debug("Starting state server thread %d\n", args->thread_id); | ||
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args->success = args->c->shutdown(args->c, args->timeout); | ||
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lxc_debug("State server thread %d with shutdown timeout %d returned \"%s\"\n", | ||
args->thread_id, args->timeout, args->success ? "SUCCESS" : "FAILED"); | ||
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pthread_exit(NULL); | ||
return NULL; | ||
} | ||
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int main(int argc, char *argv[]) | ||
{ | ||
int i, j; | ||
pthread_attr_t attr; | ||
pthread_t threads[10]; | ||
struct thread_args args[10]; | ||
struct lxc_container *c; | ||
int ret = EXIT_FAILURE; | ||
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c = lxc_container_new("state-server", NULL); | ||
if (!c) { | ||
lxc_error("%s", "Failed to create container \"state-server\""); | ||
exit(ret); | ||
} | ||
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if (c->is_defined(c)) { | ||
lxc_error("%s\n", "Container \"state-server\" is defined"); | ||
goto on_error_put; | ||
} | ||
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if (!c->createl(c, "busybox", NULL, NULL, 0, NULL)) { | ||
lxc_error("%s\n", "Failed to create busybox container \"state-server\""); | ||
goto on_error_put; | ||
} | ||
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if (!c->is_defined(c)) { | ||
lxc_error("%s\n", "Container \"state-server\" is not defined"); | ||
goto on_error_put; | ||
} | ||
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c->clear_config(c); | ||
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if (!c->load_config(c, NULL)) { | ||
lxc_error("%s\n", "Failed to load config for container \"state-server\""); | ||
goto on_error_stop; | ||
} | ||
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if (!c->want_daemonize(c, true)) { | ||
lxc_error("%s\n", "Failed to mark container \"state-server\" daemonized"); | ||
goto on_error_stop; | ||
} | ||
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pthread_attr_init(&attr); | ||
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for (j = 0; j < 10; j++) { | ||
lxc_debug("Starting state server test iteration %d\n", j); | ||
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if (!c->startl(c, 0, NULL)) { | ||
lxc_error("%s\n", "Failed to start container \"state-server\" daemonized"); | ||
goto on_error_stop; | ||
} | ||
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sleep(5); | ||
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for (i = 0; i < 10; i++) { | ||
int ret; | ||
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args[i].thread_id = i; | ||
args[i].c = c; | ||
args[i].timeout = -1; | ||
/* test non-blocking shutdown request */ | ||
if (i == 0) | ||
args[i].timeout = 0; | ||
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ret = pthread_create(&threads[i], &attr, state_wrapper, (void *) &args[i]); | ||
if (ret != 0) | ||
goto on_error_stop; | ||
} | ||
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for (i = 0; i < 10; i++) { | ||
int ret; | ||
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ret = pthread_join(threads[i], NULL); | ||
if (ret != 0) | ||
goto on_error_stop; | ||
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if (!args[i].success) { | ||
lxc_error("State server thread %d failed\n", args[i].thread_id); | ||
goto on_error_stop; | ||
} | ||
} | ||
} | ||
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ret = EXIT_SUCCESS; | ||
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on_error_stop: | ||
if (c->is_running(c) && !c->stop(c)) | ||
lxc_error("%s\n", "Failed to stop container \"state-server\""); | ||
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if (!c->destroy(c)) | ||
lxc_error("%s\n", "Failed to destroy container \"state-server\""); | ||
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on_error_put: | ||
lxc_container_put(c); | ||
if (ret == EXIT_SUCCESS) | ||
lxc_debug("%s\n", "All state server tests passed"); | ||
exit(ret); | ||
} |