| /* |
| * Copyright (c) International Business Machines Corp., 2001 |
| * 07/2001 Ported by Wayne Boyer |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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 |
| */ |
| |
| /* |
| * Test Description: |
| * Verify that nanosleep() will fail to suspend the execution |
| * of a process for a specified time if interrupted by a non-blocked signal. |
| * |
| * Expected Result: |
| * nanosleep() should return with -1 value and sets errno to EINTR. |
| */ |
| |
| #include <errno.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <time.h> |
| #include <sys/wait.h> |
| |
| #include "test.h" |
| |
| char *TCID = "nanosleep03"; |
| int TST_TOTAL = 1; |
| |
| static void do_child(void); |
| static void setup(void); |
| static void sig_handler(); |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| pid_t cpid; |
| int status; |
| |
| tst_parse_opts(ac, av, NULL, NULL); |
| |
| #ifdef UCLINUX |
| maybe_run_child(&do_child, "dddd", &timereq.tv_sec, &timereq.tv_nsec, |
| &timerem.tv_sec, &timerem.tv_nsec); |
| #endif |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| tst_count = 0; |
| |
| /* |
| * Creat a child process and suspend its |
| * execution using nanosleep() |
| */ |
| if ((cpid = FORK_OR_VFORK()) == -1) |
| tst_brkm(TBROK, NULL, "fork() failed"); |
| |
| if (cpid == 0) { |
| #ifdef UCLINUX |
| if (self_exec(av[0], "dddd", |
| timereq.tv_sec, timereq.tv_nsec, |
| timerem.tv_sec, timerem.tv_nsec) < 0) { |
| tst_brkm(TBROK, NULL, "self_exec failed"); |
| } |
| #else |
| do_child(); |
| #endif |
| } |
| |
| sleep(1); |
| |
| /* Now send signal to child */ |
| if (kill(cpid, SIGINT) < 0) { |
| tst_brkm(TBROK, NULL, |
| "kill() fails send signal to child"); |
| } |
| |
| /* Wait for child to execute */ |
| wait(&status); |
| if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { |
| tst_resm(TPASS, "nanosleep() failed, interrupted" |
| " by signal (%d) as expected", EINTR); |
| } else { |
| tst_resm(TFAIL, "child process exited abnormally; " |
| "status = %d", status); |
| } |
| } |
| |
| tst_exit(); |
| } |
| |
| static void do_child(void) |
| { |
| struct timespec timereq = {.tv_sec = 5, .tv_nsec = 9999}; |
| struct timespec timerem; |
| |
| /* |
| * Call nanosleep() to suspend child process |
| * for specified time 'tv_sec'. |
| * Call should return before suspending execution |
| * for the specified time due to receipt of signal |
| * from Parent. |
| */ |
| TEST(nanosleep(&timereq, &timerem)); |
| |
| if (TEST_RETURN == -1) { |
| |
| /* Check for expected errno is set */ |
| if (TEST_ERRNO != EINTR) { |
| tst_resm(TFAIL | TTERRNO, |
| "nanosleep() failed; expected errno: %d", |
| EINTR); |
| exit(1); |
| } |
| } else { |
| tst_resm(TFAIL, "nanosleep() returns %ld, " |
| "expected -1, errno:%d", TEST_RETURN, EINTR); |
| exit(1); |
| } |
| |
| exit(0); |
| } |
| |
| static void setup(void) |
| { |
| tst_sig(FORK, DEF_HANDLER, NULL); |
| |
| TEST_PAUSE; |
| |
| if (signal(SIGINT, sig_handler) == SIG_ERR) { |
| tst_brkm(TBROK, NULL, |
| "signal() fails to setup signal handler"); |
| } |
| |
| } |
| |
| static void sig_handler(void) |
| { |
| } |