140 lines
3.0 KiB
C
140 lines
3.0 KiB
C
/* Copyright (C) 2006-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C 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 2.1 of the License, or (at your option) any later version.
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The GNU C 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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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <intprops.h>
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#include <support/check.h>
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#include <support/support.h>
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#include <support/xsignal.h>
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#include <support/xunistd.h>
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#include <support/xtime.h>
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#include <stdlib.h>
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static volatile int handler_called;
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static void
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handler (int sig)
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{
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handler_called = 1;
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}
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static void
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test_pselect_basic (void)
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{
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struct sigaction sa;
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sa.sa_handler = handler;
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sa.sa_flags = 0;
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sigemptyset (&sa.sa_mask);
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xsigaction (SIGUSR1, &sa, NULL);
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sa.sa_handler = SIG_IGN;
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xsigaction (SIGCHLD, &sa, NULL);
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sigset_t ss_usr1;
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sigemptyset (&ss_usr1);
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sigaddset (&ss_usr1, SIGUSR1);
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TEST_COMPARE (sigprocmask (SIG_BLOCK, &ss_usr1, NULL), 0);
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int fds[2][2];
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xpipe (fds[0]);
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xpipe (fds[1]);
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fd_set rfds;
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FD_ZERO (&rfds);
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sigset_t ss;
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TEST_COMPARE (sigprocmask (SIG_SETMASK, NULL, &ss), 0);
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sigdelset (&ss, SIGUSR1);
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struct timespec to = { .tv_sec = 0, .tv_nsec = 500000000 };
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pid_t parent = getpid ();
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pid_t p = xfork ();
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if (p == 0)
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{
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xclose (fds[0][1]);
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xclose (fds[1][0]);
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FD_SET (fds[0][0], &rfds);
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int e;
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do
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{
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if (getppid () != parent)
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FAIL_EXIT1 ("getppid()=%d != parent=%d", getppid(), parent);
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errno = 0;
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e = pselect (fds[0][0] + 1, &rfds, NULL, NULL, &to, &ss);
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}
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while (e == 0);
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TEST_COMPARE (e, -1);
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TEST_COMPARE (errno, EINTR);
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TEMP_FAILURE_RETRY (write (fds[1][1], "foo", 3));
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exit (0);
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}
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xclose (fds[0][0]);
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xclose (fds[1][1]);
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FD_SET (fds[1][0], &rfds);
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TEST_COMPARE (kill (p, SIGUSR1), 0);
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int e = pselect (fds[1][0] + 1, &rfds, NULL, NULL, NULL, &ss);
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TEST_COMPARE (e, 1);
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TEST_VERIFY (FD_ISSET (fds[1][0], &rfds));
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}
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static void
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test_pselect_large_timeout (void)
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{
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support_create_timer (0, 100000000, false, NULL);
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int fds[2];
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xpipe (fds);
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fd_set rfds;
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FD_ZERO (&rfds);
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FD_SET (fds[0], &rfds);
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sigset_t ss;
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TEST_COMPARE (sigprocmask (SIG_SETMASK, NULL, &ss), 0);
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sigdelset (&ss, SIGALRM);
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struct timespec ts = { TYPE_MAXIMUM (time_t), 0 };
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TEST_COMPARE (pselect (fds[0] + 1, &rfds, NULL, NULL, &ts, &ss), -1);
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TEST_VERIFY (errno == EINTR || errno == EOVERFLOW);
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}
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static int
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do_test (void)
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{
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test_pselect_basic ();
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test_pselect_large_timeout ();
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return 0;
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}
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#include <support/test-driver.c>
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