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Diffstat (limited to 'winsup/testsuite/winsup.api/ltp/alarm07.c')
| -rw-r--r-- | winsup/testsuite/winsup.api/ltp/alarm07.c | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/ltp/alarm07.c b/winsup/testsuite/winsup.api/ltp/alarm07.c new file mode 100644 index 000000000..7661ba978 --- /dev/null +++ b/winsup/testsuite/winsup.api/ltp/alarm07.c @@ -0,0 +1,203 @@ +/* + * + * Copyright (c) International Business Machines Corp., 2001 + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* + * Test Name: alarm03 + * + * Test Description: + * Check the functionality of the alarm() when the time input + * parameter is non-zero and the process does a fork. + * + * Expected Result: + * The alarm request should be cleared in the child process. + * + * Algorithm: + * Setup: + * Setup signal handling. + * Pause for SIGUSR1 if option specified. + * + * Test: + * Loop if the proper options are given. + * Execute system call + * Check return code, if system call failed (return=-1) + * Log the errno and Issue a FAIL message. + * Otherwise, + * Verify the Functionality of system call + * if successful, + * Issue Functionality-Pass message. + * Otherwise, + * Issue Functionality-Fail message. + * Cleanup: + * Print errno log and/or timing stats if options given + * + * Usage: <for command-line> + * alarm03 [-c n] [-f] [-i n] [-I x] [-P x] [-t] + * where, -c n : Run n copies concurrently. + * -f : Turn off functionality Testing. + * -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. + * + * HISTORY + * 07/2001 Ported by Wayne Boyer + * + * RESTRICTIONS: + * None. + */ + +#include <stdio.h> +#include <unistd.h> +#include <sys/types.h> +#include <errno.h> +#include <string.h> +#include <signal.h> +#include <sys/wait.h> + +#include "test.h" +#include "usctest.h" + +char *TCID="alarm03"; /* Test program identifier. */ +int TST_TOTAL=1; /* Total number of test cases. */ +extern int Tst_count; /* Test Case counter for tst_* routines */ +int almreceived = 0; /* flag to indicate SIGALRM received or not */ + +void setup(); /* Main setup function of test */ +void cleanup(); /* cleanup function for the test */ +void sigproc(int sig); /* signal catching function */ + +int +main(int ac, char **av) +{ + int lc; /* loop counter */ + const char *msg; /* message returned from parse_opts */ + int time_sec = 3; /* time for which alarm is set */ + int sleep_time = 5; /* waiting time for the SIGALRM signal */ + pid_t cpid; /* child process id */ + + /* Parse standard options given to run the test. */ + msg = parse_opts(ac, av, (option_t *)NULL, NULL); + if (msg != (char *)NULL) { + tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg); + } + + /* Perform global setup for test */ + setup(); + + /* Check looping state if -i option given */ + for (lc = 0; TEST_LOOPING(lc); lc++) { + /* Reset Tst_count in case we are looping. */ + Tst_count=0; + + /* + * Call First alarm() with non-zero time parameter + * 'time_sec' to send SIGALRM to the process. + */ + TEST(alarm(time_sec)); + + /* Now, fork a child process */ + cpid = fork(); + if (cpid < 0) { + tst_resm(TFAIL, "fork() fails to create child, " + "errno:%d", errno); + } + + /* Wait for signal SIGALRM to be generated */ + sleep(sleep_time); + + if (STD_FUNCTIONAL_TEST) { + if (cpid == 0) { /* Child process */ + /* + * For child process if almreceived is 0 + * means alarm request is cleared. + */ + if (almreceived == 0) { + tst_resm(TPASS, "Functionality of " + "alarm(%u) successful", + time_sec); + } else { + tst_resm(TFAIL, "alarm request not " + "cleared in child, " + "almreceived:%d", almreceived); + } + } else { /* Parent process */ + /* Wait for child to complete execution */ + wait(0); + } + } else { + tst_resm(TPASS, "call returned %d", TEST_RETURN); + } + } /* End for TEST_LOOPING */ + + /* Call cleanup() to undo setup done for the test. */ + cleanup(); + + /*NOTREACHED*/ +} /* End main */ + +/* + * setup() - performs all ONE TIME setup for this test. + * Setup signal handler to catch SIGALRM signal. + */ +void +setup() +{ + /* capture signals */ + tst_sig(FORK, DEF_HANDLER, cleanup); + + /* Pause if that option was specified */ + TEST_PAUSE; + + /* Set the signal catching function */ + if (signal(SIGALRM, sigproc) == SIG_ERR) { + tst_brkm(TFAIL, cleanup, + "signal() fails to catch SIGALARM, errno=%d", + errno); + } +} + + +/* + * sigproc(int) - This function defines the action that has to be taken + * when the SIGALRM signal is caught. + * It also sets the variable which is used to check whether the + * alarm system call was successful. + */ +void +sigproc(int sig) +{ + almreceived = almreceived + 1; +} + +/* + * cleanup() - performs all ONE TIME cleanup for this test at + * completion or premature exit. + */ +void +cleanup() +{ + /* + * print timing stats if that option was specified. + * print errno log if that option was specified. + */ + TEST_CLEANUP; + + /* exit with return code appropriate for results */ + tst_exit(); +} |