mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2025-08-19 23:28:54 +02:00
ee5e750be3
It might be possible for the `low-memory-warning` signal to be emitted (by the GLib worker thread) before the test has connected to it, which could cause the tests to loop forever. Potentially fixes https://gitlab.gnome.org/pwithnall/glib/-/jobs/5322491, though I have not been able to reproduce the race locally. Signed-off-by: Philip Withnall <pwithnall@gnome.org>
120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
/* GIO - GLib Input, Output and Streaming Library
|
|
*
|
|
* Copyright 2025 Red Hat, Inc.
|
|
*
|
|
* SPDX-License-Identifier: LGPL-2.1-or-later
|
|
*
|
|
* This 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.
|
|
*
|
|
* This 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 this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <glib/glib.h>
|
|
#include <glib/gstdio.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
|
|
#include "gio.h"
|
|
#include "gmemorymonitorpsi.h"
|
|
|
|
typedef struct
|
|
{
|
|
char *mock_psi_path;
|
|
char *mock_proc_path;
|
|
} SetupData;
|
|
|
|
static void
|
|
tests_setup (SetupData *setup_data,
|
|
gconstpointer data)
|
|
{
|
|
char *proc_contents = NULL;
|
|
GError *local_error = NULL;
|
|
|
|
setup_data->mock_psi_path = g_build_filename (g_get_tmp_dir (), "cgroup", NULL);
|
|
g_assert_no_errno (mkfifo (setup_data->mock_psi_path, S_IRUSR | S_IWUSR));
|
|
|
|
setup_data->mock_proc_path = g_build_filename (g_get_tmp_dir (), "psi-proc", NULL);
|
|
proc_contents = g_strdup_printf ("0::%s", setup_data->mock_psi_path);
|
|
g_file_set_contents_full (setup_data->mock_proc_path, proc_contents,
|
|
-1, G_FILE_SET_CONTENTS_NONE,
|
|
S_IRUSR | S_IWUSR, &local_error);
|
|
g_assert_no_error (local_error);
|
|
g_free (proc_contents);
|
|
}
|
|
|
|
static void
|
|
tests_teardown (SetupData *setup_data,
|
|
gconstpointer data)
|
|
{
|
|
g_unlink (setup_data->mock_proc_path);
|
|
g_free (setup_data->mock_proc_path);
|
|
g_unlink (setup_data->mock_psi_path);
|
|
g_free (setup_data->mock_psi_path);
|
|
}
|
|
|
|
static void
|
|
memory_monitor_psi_signal_cb (GMemoryMonitor *m,
|
|
GMemoryMonitorWarningLevel level,
|
|
gpointer user_data)
|
|
{
|
|
int *out_warning_level = user_data;
|
|
|
|
*out_warning_level = level;
|
|
|
|
g_main_context_wakeup (NULL);
|
|
}
|
|
|
|
static void
|
|
test_receive_signals (SetupData *setup, gconstpointer data)
|
|
{
|
|
GMemoryMonitorPsi *monitor;
|
|
unsigned long warning_id;
|
|
int warning_level = -1;
|
|
GError *local_error = NULL;
|
|
|
|
monitor = g_object_new (G_TYPE_MEMORY_MONITOR_PSI,
|
|
"proc-path", setup->mock_proc_path,
|
|
NULL);
|
|
warning_id = g_signal_connect (monitor, "low-memory-warning",
|
|
G_CALLBACK (memory_monitor_psi_signal_cb), &warning_level);
|
|
g_initable_init (G_INITABLE (monitor), NULL, &local_error);
|
|
g_assert_no_error (local_error);
|
|
|
|
g_file_set_contents (setup->mock_psi_path,
|
|
"test",
|
|
-1,
|
|
&local_error);
|
|
g_assert_no_error (local_error);
|
|
|
|
while (warning_level == -1)
|
|
g_main_context_iteration (NULL, TRUE);
|
|
|
|
g_assert_true (warning_level == 50 ||
|
|
warning_level == 100 ||
|
|
warning_level == 255);
|
|
|
|
g_signal_handler_disconnect (monitor, warning_id);
|
|
g_object_unref (monitor);
|
|
}
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
g_setenv ("GIO_USE_MEMORY_MONITOR", "psi", TRUE);
|
|
|
|
g_test_init (&argc, &argv, G_TEST_OPTION_ISOLATE_DIRS, NULL);
|
|
g_test_add ("/memory-monitor-psi/receive-signal", SetupData, NULL,
|
|
tests_setup, test_receive_signals, tests_teardown);
|
|
|
|
return g_test_run ();
|
|
}
|