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38316352e0
So caller can check which state was found if multiple ones are asked. Checked on x86_64-linux-gnu. Reviewed-by: Florian Weimer <fweimer@redhat.com>
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/* Wait for process state tests.
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Copyright (C) 2020-2024 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 <stdio.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <errno.h>
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#include <support/test-driver.h>
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#include <support/process_state.h>
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#include <support/check.h>
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#include <support/xsignal.h>
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#include <support/xunistd.h>
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#ifndef WEXITED
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# define WEXITED 0
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#endif
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static void
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sigusr1_handler (int signo)
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{
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}
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static void
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test_child (void)
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{
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xsignal (SIGUSR1, sigusr1_handler);
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raise (SIGSTOP);
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TEST_COMPARE (pause (), -1);
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TEST_COMPARE (errno, EINTR);
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while (1)
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asm ("");
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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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pid_t pid = xfork ();
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if (pid == 0)
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{
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test_child ();
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_exit (127);
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}
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/* Adding process_state_tracing_stop ('t') allows the test to work under
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trace programs such as ptrace. */
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enum support_process_state stop_state = support_process_state_stopped
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| support_process_state_tracing_stop;
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if (test_verbose)
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printf ("info: waiting pid %d, state_stopped/state_tracing_stop\n",
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(int) pid);
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{
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enum support_process_state state =
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support_process_state_wait (pid, stop_state);
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TEST_VERIFY (state == support_process_state_stopped
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|| state == support_process_state_tracing_stop);
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}
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if (kill (pid, SIGCONT) != 0)
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FAIL_RET ("kill (%d, SIGCONT): %m\n", pid);
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if (test_verbose)
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printf ("info: waiting pid %d, state_sleeping\n", (int) pid);
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TEST_COMPARE (support_process_state_wait (pid,
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support_process_state_sleeping),
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support_process_state_sleeping);
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if (kill (pid, SIGUSR1) != 0)
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FAIL_RET ("kill (%d, SIGUSR1): %m\n", pid);
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if (test_verbose)
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printf ("info: waiting pid %d, state_running\n", (int) pid);
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TEST_COMPARE (support_process_state_wait (pid,
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support_process_state_running),
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support_process_state_running);
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if (kill (pid, SIGKILL) != 0)
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FAIL_RET ("kill (%d, SIGKILL): %m\n", pid);
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if (test_verbose)
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printf ("info: waiting pid %d, state_zombie\n", (int) pid);
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TEST_COMPARE (support_process_state_wait (pid,
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support_process_state_zombie),
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support_process_state_zombie);;
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siginfo_t info;
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int r = waitid (P_PID, pid, &info, WEXITED);
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TEST_COMPARE (r, 0);
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TEST_COMPARE (info.si_signo, SIGCHLD);
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TEST_COMPARE (info.si_code, CLD_KILLED);
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TEST_COMPARE (info.si_status, SIGKILL);
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TEST_COMPARE (info.si_pid, pid);
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return 0;
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}
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#include <support/test-driver.c>
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