| /******************************************************************************/ |
| /* Copyright (c) Crackerjack Project., 2007 */ |
| /* */ |
| /* 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 */ |
| /* */ |
| /******************************************************************************/ |
| /******************************************************************************/ |
| /* */ |
| /* File: waitid02.c */ |
| /* */ |
| /* Description: This tests the waitid() syscall */ |
| /* */ |
| /* Usage: <for command-line> */ |
| /* waitid02 [-c n] [-e][-i n] [-I x] [-p x] [-t] */ |
| /* where, -c n : Run n copies concurrently. */ |
| /* -e : Turn on errno logging. */ |
| /* -i n : Execute test n times. */ |
| /* -I x : Execute test for x seconds. */ |
| /* -P x : Pause for x seconds between iterations. */ |
| /* -t : Turn on syscall timing. */ |
| /* */ |
| /* Total Tests: 1 */ |
| /* */ |
| /* Test Name: waitid02 */ |
| /* History: Porting from Crackerjack to LTP is done by */ |
| /* Manas Kumar Nayak maknayak@in.ibm.com> */ |
| /******************************************************************************/ |
| |
| #include <stdio.h> |
| #include <errno.h> |
| #include <stdlib.h> |
| #include <sys/wait.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <sys/stat.h> |
| |
| #include "test.h" |
| #include "linux_syscall_numbers.h" |
| |
| struct testcase_t { |
| const char *msg; |
| idtype_t idtype; |
| id_t id; |
| pid_t child; |
| int options; |
| int exp_ret; |
| int exp_errno; |
| void (*setup) (struct testcase_t *); |
| void (*cleanup) (struct testcase_t *); |
| }; |
| |
| static void setup(void); |
| static void cleanup(void); |
| |
| static void setup2(struct testcase_t *); |
| static void setup3(struct testcase_t *); |
| static void setup4(struct testcase_t *); |
| static void setup5(struct testcase_t *); |
| static void setup6(struct testcase_t *); |
| static void cleanup2(struct testcase_t *); |
| static void cleanup5(struct testcase_t *); |
| static void cleanup6(struct testcase_t *); |
| |
| struct testcase_t tdat[] = { |
| { |
| .msg = "WNOHANG", |
| .idtype = P_ALL, |
| .id = 0, |
| .options = WNOHANG, |
| .exp_ret = -1, |
| .exp_errno = EINVAL, |
| }, |
| { |
| .msg = "WNOHANG | WEXITED no child", |
| .idtype = P_ALL, |
| .id = 0, |
| .options = WNOHANG | WEXITED, |
| .exp_ret = -1, |
| .exp_errno = ECHILD, |
| }, |
| { |
| .msg = "WNOHANG | WEXITED with child", |
| .idtype = P_ALL, |
| .id = 0, |
| .options = WNOHANG | WEXITED, |
| .exp_ret = 0, |
| .setup = setup2, |
| .cleanup = cleanup2 |
| }, |
| { |
| .msg = "P_PGID, WEXITED wait for child", |
| .idtype = P_PGID, |
| .options = WEXITED, |
| .exp_ret = 0, |
| .setup = setup3, |
| }, |
| { |
| .msg = "P_PID, WEXITED wait for child", |
| .idtype = P_PID, |
| .options = WEXITED, |
| .exp_ret = 0, |
| .setup = setup4, |
| }, |
| { |
| .msg = "P_PID, WSTOPPED | WNOWAIT", |
| .idtype = P_PID, |
| .options = WSTOPPED | WNOWAIT, |
| .exp_ret = 0, |
| .setup = setup5, |
| .cleanup = cleanup5 |
| }, |
| { |
| .msg = "P_PID, WCONTINUED", |
| .idtype = P_PID, |
| .options = WCONTINUED, |
| .exp_ret = 0, |
| .setup = setup6, |
| .cleanup = cleanup6 |
| }, |
| { |
| .msg = "P_PID, WEXITED not a child of the calling process", |
| .idtype = P_PID, |
| .id = 1, |
| .options = WEXITED, |
| .exp_ret = -1, |
| .exp_errno = ECHILD, |
| .setup = setup2, |
| .cleanup = cleanup2 |
| }, |
| |
| }; |
| |
| char *TCID = "waitid02"; |
| static int TST_TOTAL = ARRAY_SIZE(tdat); |
| static struct tst_checkpoint checkpoint; |
| |
| static void makechild(struct testcase_t *t, void (*childfn)(void)) |
| { |
| t->child = fork(); |
| switch (t->child) { |
| case -1: |
| tst_brkm(TBROK | TERRNO, cleanup, "fork"); |
| break; |
| case 0: |
| childfn(); |
| exit(0); |
| } |
| } |
| |
| static void wait4child(pid_t pid) |
| { |
| int status; |
| if (waitpid(pid, &status, 0) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, "waitpid"); |
| if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) |
| tst_resm(TFAIL, "child returns %d", status); |
| } |
| |
| static void dummy_child(void) |
| { |
| } |
| |
| static void waiting_child(void) |
| { |
| TST_CHECKPOINT_CHILD_WAIT(&checkpoint); |
| } |
| |
| static void stopped_child(void) |
| { |
| kill(getpid(), SIGSTOP); |
| TST_CHECKPOINT_CHILD_WAIT(&checkpoint); |
| } |
| |
| static void setup2(struct testcase_t *t) |
| { |
| makechild(t, waiting_child); |
| } |
| |
| static void cleanup2(struct testcase_t *t) |
| { |
| TST_CHECKPOINT_SIGNAL_CHILD(cleanup, &checkpoint); |
| wait4child(t->child); |
| } |
| |
| static void setup3(struct testcase_t *t) |
| { |
| t->id = getpgid(0); |
| makechild(t, dummy_child); |
| } |
| |
| static void setup4(struct testcase_t *t) |
| { |
| makechild(t, dummy_child); |
| t->id = t->child; |
| } |
| |
| static void setup5(struct testcase_t *t) |
| { |
| makechild(t, stopped_child); |
| t->id = t->child; |
| } |
| |
| static void cleanup5(struct testcase_t *t) |
| { |
| kill(t->child, SIGCONT); |
| TST_CHECKPOINT_SIGNAL_CHILD(cleanup, &checkpoint); |
| wait4child(t->child); |
| } |
| |
| static void setup6(struct testcase_t *t) |
| { |
| siginfo_t infop; |
| makechild(t, stopped_child); |
| t->id = t->child; |
| if (waitid(P_PID, t->child, &infop, WSTOPPED) != 0) |
| tst_brkm(TBROK | TERRNO, cleanup, "waitpid setup6"); |
| kill(t->child, SIGCONT); |
| } |
| |
| static void cleanup6(struct testcase_t *t) |
| { |
| TST_CHECKPOINT_SIGNAL_CHILD(cleanup, &checkpoint); |
| wait4child(t->child); |
| } |
| |
| static void setup(void) |
| { |
| TEST_PAUSE; |
| tst_tmpdir(); |
| TST_CHECKPOINT_CREATE(&checkpoint); |
| } |
| |
| static void cleanup(void) |
| { |
| tst_rmdir(); |
| tst_exit(); |
| } |
| |
| static void test_waitid(struct testcase_t *t) |
| { |
| siginfo_t infop; |
| |
| if (t->setup) |
| t->setup(t); |
| |
| tst_resm(TINFO, "%s", t->msg); |
| tst_resm(TINFO, "(%d) waitid(%d, %d, %p, %d)", getpid(), t->idtype, |
| t->id, &infop, t->options); |
| memset(&infop, 0, sizeof(infop)); |
| |
| TEST(waitid(t->idtype, t->id, &infop, t->options)); |
| if (TEST_RETURN == t->exp_ret) { |
| if (TEST_RETURN == -1) { |
| if (TEST_ERRNO == t->exp_errno) |
| tst_resm(TPASS, "exp_errno=%d", t->exp_errno); |
| else |
| tst_resm(TFAIL|TTERRNO, "exp_errno=%d", |
| t->exp_errno); |
| } else { |
| tst_resm(TPASS, "ret: %d", t->exp_ret); |
| } |
| } else { |
| tst_resm(TFAIL|TTERRNO, "ret=%ld expected=%d", |
| TEST_RETURN, t->exp_ret); |
| } |
| tst_resm(TINFO, "si_pid = %d ; si_code = %d ; si_status = %d", |
| infop.si_pid, infop.si_code, |
| infop.si_status); |
| |
| if (t->cleanup) |
| t->cleanup(t); |
| } |
| |
| int main(int ac, char **av) |
| { |
| int lc, testno; |
| const char *msg; |
| |
| msg = parse_opts(ac, av, NULL, NULL); |
| if (msg != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| for (lc = 0; TEST_LOOPING(lc); ++lc) { |
| tst_count = 0; |
| for (testno = 0; testno < TST_TOTAL; testno++) |
| test_waitid(&tdat[testno]); |
| } |
| cleanup(); |
| tst_exit(); |
| } |