[LTP] [PATCH 2/2] lib/tst_test.c: Restrict that tst_brk() only works with TBROK/TCONF

[Xiao Yang <yangx.jy@cn.fujitsu.com>]

On 2018/11/09 1:53, Jan Stancek wrote:
> ----- Original Message -----
>> 1) Add tst_check_ttype() to check if TPASS/TFAIL/TWARN/TINFO is
>>     passed into tst_brk() and convert it to TBROK forcely.
>> 2) Only update test result in library process and main test process
>>     because the exit status of child can be passed into main test
>>     process by check_child_status().
>> 3) Increase the number of skipped when calling tst_brk(TCONF).
>> 4) Increase the number of warnings when calling tst_brk(TBROK) in
>>     test cleanup(), other than that print "Test broken!" when calling
>>     tst_brk(TBROK).
>>
>> Fix: #408
>>
>> Signed-off-by: Xiao Yang<yangx.jy@cn.fujitsu.com>
>> ---
>>   lib/tst_test.c | 28 ++++++++++++++++++++++++++--
>>   1 file changed, 26 insertions(+), 2 deletions(-)
>>
>> diff --git a/lib/tst_test.c b/lib/tst_test.c
>> index 661fbbf..c8d8eff 100644
>> --- a/lib/tst_test.c
>> +++ b/lib/tst_test.c
>> @@ -55,6 +55,7 @@ struct results {
>>   	int skipped;
>>   	int failed;
>>   	int warnings;
>> +	int broken;
> Hi,
>
> I don't follow what benefit this provides. It generates message "Test broken",
> but we already know that test is broken by message in tst_vbrk_() / tst_cvres().
Hi Jan,

We can remove the unnecessary message "Test broken", and also apply the check for
ttype in tst_brk() written by your patch.

According to the issue #$08, we want to increase result counters when calling tst_brk().
e.g.
1) Increase the skipped counter when calling tst_brk(TCONF).
2) Increase the warnings counter when calling tst_brk(TBROK/FAIL) in
    test cleanup(), other than that increase the failed counter when
    calling tst_brk(TBROK/FAIL).

Best Regards,
Xiao Yang

> Regards,
> Jan
>
>>   	unsigned int timeout;
>>   };
>>
>> @@ -159,6 +160,18 @@ void tst_reinit(void)
>>   	SAFE_CLOSE(fd);
>>   }
>>
>> +static int tst_check_ttype(int ttype)
>> +{
>> +	if (TTYPE_RESULT(ttype) != TCONF&&  TTYPE_RESULT(ttype) != TBROK) {
>> +		tst_res(TINFO, "tst_brk(): invalid type %s, use TBROK forcely",
>> +			tst_strttype(ttype));
>> +		ttype&= ~TTYPE_MASK;
>> +		ttype |= TBROK;
>> +	}
>> +
>> +	return ttype;
>> +}
>> +
>>   static void update_results(int ttype)
>>   {
>>   	if (!results)
>> @@ -177,6 +190,9 @@ static void update_results(int ttype)
>>   	case TFAIL:
>>   		tst_atomic_inc(&results->failed);
>>   	break;
>> +	case TBROK:
>> +		tst_atomic_inc(&results->broken);
>> +	break;
>>   	}
>>   }
>>
>> @@ -305,11 +321,15 @@ void tst_vbrk_(const char *file, const int lineno, int
>> ttype,
>>   	 * specified but CLONE_THREAD is not. Use direct syscall to avoid
>>   	 * cleanup running in the child.
>>   	 */
>> -	if (syscall(SYS_getpid) == main_pid)
>> +	if (syscall(SYS_getpid) == main_pid) {
>> +		update_results(ttype);
>>   		do_test_cleanup();
>> +	}
>>
>> -	if (getpid() == lib_pid)
>> +	if (getpid() == lib_pid) {
>> +		update_results(ttype);
>>   		do_exit(TTYPE_RESULT(ttype));
>> +	}
>>
>>   	exit(TTYPE_RESULT(ttype));
>>   }
>> @@ -330,6 +350,7 @@ void tst_brk_(const char *file, const int lineno, int
>> ttype,
>>   	va_list va;
>>
>>   	va_start(va, fmt);
>> +	ttype = tst_check_ttype(ttype);
>>   	tst_brk_handler(file, lineno, ttype, fmt, va);
>>   	va_end(va);
>>   }
>> @@ -605,6 +626,9 @@ static void do_exit(int ret)
>>   			ret |= TWARN;
>>   	}
>>
>> +	if (results->broken)
>> +		printf("Test broken!\n");
>> +
>>   	do_cleanup();
>>
>>   	exit(ret);
>> --
>> 1.8.3.1
>>
>>
>>
>>
>
> .
>