| /******************************************************************************/ |
| /* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ |
| /* */ |
| /******************************************************************************/ |
| /******************************************************************************/ |
| /* */ |
| /* File: timer_getoverrun01.c */ |
| /* */ |
| /* Description: This tests the timer_getoverrun() syscall */ |
| /* */ |
| /* Usage: <for command-line> */ |
| /* timer_getoverrun01 [-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: timer_getoverrun01 */ |
| /* History: Porting from Crackerjack to LTP is done by */ |
| /* Manas Kumar Nayak maknayak@in.ibm.com> */ |
| /******************************************************************************/ |
| |
| #include <stdio.h> |
| #include <errno.h> |
| #include <time.h> |
| #include <signal.h> |
| #include <syscall.h> |
| |
| /* Harness Specific Include Files. */ |
| #include "test.h" |
| #include "usctest.h" |
| #include "linux_syscall_numbers.h" |
| |
| /* timer_t in kernel(int) is different from Glibc definition(void*). |
| * Use the kernel definition. |
| */ |
| typedef int kernel_timer_t; |
| |
| /* Extern Global Variables */ |
| extern int Tst_count; /* counter for tst_xxx routines. */ |
| extern char *TESTDIR; /* temporary dir created by tst_tmpdir() */ |
| |
| /* Global Variables */ |
| char *TCID = "timer_getoverrun01"; /* Test program identifier.*/ |
| int testno; |
| int TST_TOTAL = 1; /* total number of tests in this file. */ |
| |
| /* Extern Global Functions */ |
| /******************************************************************************/ |
| /* */ |
| /* Function: cleanup */ |
| /* */ |
| /* Description: Performs all one time clean up for this test on successful */ |
| /* completion, premature exit or failure. Closes all temporary */ |
| /* files, removes all temporary directories exits the test with */ |
| /* appropriate return code by calling tst_exit() function. */ |
| /* */ |
| /* Input: None. */ |
| /* */ |
| /* Output: None. */ |
| /* */ |
| /* Return: On failure - Exits calling tst_exit(). Non '0' return code. */ |
| /* On success - Exits calling tst_exit(). With '0' return code. */ |
| /* */ |
| /******************************************************************************/ |
| extern void cleanup() { |
| /* Remove tmp dir and all files in it */ |
| TEST_CLEANUP; |
| tst_rmdir(); |
| |
| /* Exit with appropriate return code. */ |
| tst_exit(); |
| } |
| |
| /* Local Functions */ |
| /******************************************************************************/ |
| /* */ |
| /* Function: setup */ |
| /* */ |
| /* Description: Performs all one time setup for this test. This function is */ |
| /* typically used to capture signals, create temporary dirs */ |
| /* and temporary files that may be used in the course of this */ |
| /* test. */ |
| /* */ |
| /* Input: None. */ |
| /* */ |
| /* Output: None. */ |
| /* */ |
| /* Return: On failure - Exits by calling cleanup(). */ |
| /* On success - returns 0. */ |
| /* */ |
| /******************************************************************************/ |
| void setup() { |
| /* Capture signals if any */ |
| /* Create temporary directories */ |
| TEST_PAUSE; |
| tst_tmpdir(); |
| } |
| |
| char tmpname[40]; |
| int parent; |
| int block = 1; |
| |
| #define ENTER(normal) tst_resm(TINFO, "Enter block %d: test %d (%s)", \ |
| block, Tst_count, normal?"NORMAL":"ERROR"); |
| |
| int main(int ac, char **av) { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| kernel_timer_t created_timer_id; |
| struct sigevent ev; |
| |
| /* parse standard options */ |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg); |
| tst_exit(); |
| } |
| |
| setup(); |
| |
| /* Check looping state if -i option given */ |
| for (lc = 0; TEST_LOOPING(lc); ++lc) { |
| Tst_count = 0; |
| for (testno = 0; testno < TST_TOTAL; ++testno) { |
| |
| ev.sigev_value = (sigval_t)0; |
| ev.sigev_signo = SIGALRM; |
| ev.sigev_notify = SIGEV_SIGNAL; |
| |
| TEST(syscall(__NR_timer_create, CLOCK_REALTIME, &ev, &created_timer_id )); |
| |
| ENTER(1); |
| TEST( syscall(__NR_timer_getoverrun, created_timer_id )); |
| if (TEST_RETURN == 0) { |
| tst_resm(TPASS, "Block %d: test %d PASSED", block, Tst_count ); |
| } else { |
| tst_resm(TFAIL, "Block %d: test %d FAILED... errno = %d : %s", block, Tst_count,TEST_ERRNO, strerror(TEST_ERRNO) ); |
| cleanup(); |
| tst_exit(); |
| } |
| |
| |
| ENTER(0); |
| TEST( syscall(__NR_timer_getoverrun, -1 )); |
| if (TEST_RETURN < 0 && TEST_ERRNO == EINVAL ) { |
| tst_resm(TPASS, "Block %d: test %d PASSED", block, Tst_count ); |
| } else { |
| tst_resm(TFAIL, "Block %d: test %d FAILED... errno = %d : %s", block, Tst_count,TEST_ERRNO, strerror(TEST_ERRNO) ); |
| cleanup(); |
| tst_exit(); |
| } |
| |
| |
| } |
| } |
| cleanup(); |
| tst_exit(); |
| } |
| |
| |
| /* |
| |
| NAME |
| timer_getoverrun |
| SYNOPSIS |
| #include <time.h> |
| |
| int timer_getoverrun(timer_t timerid); |
| |
| Only a single signal shall be queued to the process for a given timer |
| at any point in time. When a timer for which a signal is still pending |
| expires, no signal shall be queued, and a timer overrun shall occur. |
| When a timer expiration signal is delivered to or accepted by a pro- |
| cess, if the implementation supports the Realtime Signals Extension, |
| the timer_getoverrun() function shall return the timer expiration |
| overrun count for the specified timer. The overrun count returned con- |
| tains the number of extra timer expirations that occurred between the |
| time the signal was generated (queued) and when it was delivered or |
| accepted, up to but not including an implementation-defined maximum of |
| {DELAYTIMER_MAX}. If the number of such extra expirations is greater |
| than or equal to {DELAYTIMER_MAX}, then the overrun count shall be set |
| to {DELAYTIMER_MAX}. The value returned by timer_getoverrun() shall |
| apply to the most recent expiration signal delivery or acceptance for |
| the timer. If no expiration signal has been delivered for the timer, |
| or if the Realtime Signals Extension is not supported, the return |
| value of timer_getoverrun() is unspecified. |
| |
| RETURN VALUE |
| If the timer_getoverrun() function succeeds, it shall return the timer |
| expiration overrun count as explained above. |
| */ |