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606dbdbc20
We can't easily assert this without triggering warnings from tools like valgrind by doing an invalid operation on a closed fd, so we only check this when under `-m undefined`. Originally contributed to GLib 2.76 in GNOME/glib@b3934133 "gstdio: Add g_clear_fd() and g_autofd". The implementation in GLib used g_fsync() as a portable thing that we can do with a fd, but that function is newer than our minimum GLib version, and libglnx isn't portable to non-Unix anyway, so use fnctl() instead. Signed-off-by: Simon McVittie <smcv@collabora.com>
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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*
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* Copyright 2019 Collabora Ltd.
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* SPDX-License-Identifier: LGPL-2.0-or-later
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "libglnx-config.h"
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#include "libglnx-testlib.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <glib/gstdio.h>
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#include "libglnx.h"
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struct _GLnxTestAutoTempDir
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{
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gchar *old_cwd;
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int old_cwd_fd;
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GLnxTmpDir temp_dir;
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};
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_GLnxTestAutoTempDir *
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_glnx_test_auto_temp_dir_enter (void)
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{
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GError *error = NULL;
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_GLnxTestAutoTempDir *ret = g_new0 (_GLnxTestAutoTempDir, 1);
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glnx_mkdtemp ("glnx-test-XXXXXX", 0700, &ret->temp_dir, &error);
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g_assert_no_error (error);
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/* just for better diagnostics */
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ret->old_cwd = g_get_current_dir ();
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glnx_opendirat (-1, ".", TRUE, &ret->old_cwd_fd, &error);
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g_assert_no_error (error);
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if (fchdir (ret->temp_dir.fd) != 0)
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g_error ("fchdir(<fd for \"%s\">): %s", ret->temp_dir.path, g_strerror (errno));
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return ret;
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}
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void
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_glnx_test_auto_temp_dir_leave (_GLnxTestAutoTempDir *dir)
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{
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GError *error = NULL;
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if (fchdir (dir->old_cwd_fd) != 0)
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g_error ("fchdir(<fd for \"%s\">): %s", dir->old_cwd, g_strerror (errno));
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glnx_tmpdir_delete (&dir->temp_dir, NULL, &error);
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g_assert_no_error (error);
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glnx_close_fd (&dir->old_cwd_fd);
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g_free (dir->old_cwd);
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g_free (dir);
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}
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void
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_glnx_test_assert_fd_was_closed (int fd)
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{
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/* We can't tell a fd was really closed without behaving as though it
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* was still valid */
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if (g_test_undefined ())
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{
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int result;
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int errsv;
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errno = 0;
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result = fcntl (fd, F_GETFD, 0);
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errsv = errno;
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g_assert_cmpint (result, <, 0);
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g_assert_cmpint (errsv, ==, EBADF);
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}
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}
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