[LTP] [PATCH 1/2] syscalls/wait01.c: Convert to new API

[LTP] [PATCH 1/2] syscalls/wait01.c: Convert to new API

[Zenghui Gao]

Take use of macros and clean up.

Signed-off-by: Zenghui Gao <gaozh.jy@fujitsu.com>
Reviewed-by: Xiao Yang <yangx.jy@fujitsu.com>
---
 testcases/kernel/syscalls/wait/wait01.c | 82 ++++---------------------
 1 file changed, 13 insertions(+), 69 deletions(-)

diff --git a/testcases/kernel/syscalls/wait/wait01.c b/testcases/kernel/syscalls/wait/wait01.c
index bd22c1191..3af95cf9b 100644
--- a/testcases/kernel/syscalls/wait/wait01.c
+++ b/testcases/kernel/syscalls/wait/wait01.c
@@ -1,81 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright (c) 2014 Fujitsu Ltd.
  * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
-/*
- * Test Description:
- *  Verify that,
- *	The calling process does not have any unwaited-for children,
- *	ECHILD would return.
+/*\
+ * [Description]
+ *
+ * The calling process does not have any unwaited-for children,
+ * ECHILD would return.
  */
 
 #include <errno.h>
-#include <sys/types.h>
 #include <sys/wait.h>
+#include <sys/types.h>
+#include "tst_test.h"
 
-#include "test.h"
-
-char *TCID = "wait01";
-int TST_TOTAL = 1;
-static void setup(void);
-static void wait_verify(void);
-static void cleanup(void);
-
-int main(int argc, char **argv)
-{
-	int lc;
-
-	tst_parse_opts(argc, argv, NULL, NULL);
-
-	setup();
-
-	for (lc = 0; TEST_LOOPING(lc); lc++) {
-		tst_count = 0;
-		wait_verify();
-	}
-
-	cleanup();
-	tst_exit();
-}
-
-static void setup(void)
-{
-	tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
-	TEST_PAUSE;
-}
-
-static void wait_verify(void)
+static void verify_wait(void)
 {
-	TEST(wait(NULL));
-
-	if (TEST_RETURN != -1) {
-		tst_resm(TFAIL | TTERRNO, "wait failed unexpectedly: %ld",
-			TEST_RETURN);
-		return;
-	}
-
-	if (TEST_ERRNO == ECHILD) {
-		tst_resm(TPASS | TTERRNO, "wait failed as expected");
-	} else {
-		tst_resm(TFAIL | TTERRNO,
-			 "wait failed unexpectedly; expected: %d - %s",
-			 ECHILD, strerror(ECHILD));
-	}
+	TST_EXP_FAIL(wait(NULL), ECHILD);
 }
 
-static void cleanup(void)
-{
-}
+static struct tst_test test = {
+	.test_all = verify_wait,
+};
-- 
2.18.1

[LTP] [PATCH 2/2] syscalls/wait02.c: Convert to new API

[Zenghui Gao]

Take use of macros and clean up.

Signed-off-by: Zenghui Gao <gaozh.jy@fujitsu.com>
Reviewed-by: Xiao Yang <yangx.jy@fujitsu.com>
---
 testcases/kernel/syscalls/wait/wait02.c | 106 ++++++------------------
 1 file changed, 25 insertions(+), 81 deletions(-)

diff --git a/testcases/kernel/syscalls/wait/wait02.c b/testcases/kernel/syscalls/wait/wait02.c
index 5695c071c..111849f2a 100644
--- a/testcases/kernel/syscalls/wait/wait02.c
+++ b/testcases/kernel/syscalls/wait/wait02.c
@@ -1,103 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
  *    AUTHOR		: William Roske
  *    CO-PILOT		: Dave Fenner
+ *\
+ * [Description]
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like.  Any license provided herein, whether implied or
- * otherwise, applies only to this software file.  Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA  94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
- *
+ * For a terminated child, test whether wait(2) can get its pid
+ * and exit status correctly.
  */
 
 #include <errno.h>
-#include <string.h>
-#include <signal.h>
-#include <stdlib.h>
 #include <sys/types.h>
 #include <sys/wait.h>
-#include "test.h"
-
-static void setup(void);
-static void cleanup(void);
-
-char *TCID = "wait02";
-int TST_TOTAL = 1;
-
-static void wait_verify(void);
-
-int main(int ac, char **av)
-{
-	int lc;
-
-	tst_parse_opts(ac, av, NULL, NULL);
-
-	setup();
-
-	for (lc = 0; TEST_LOOPING(lc); lc++) {
-		tst_count = 0;
-		wait_verify();
-	}
-
-	cleanup();
-	tst_exit();
-}
-
-static void setup(void)
-{
-	tst_sig(FORK, DEF_HANDLER, cleanup);
-
-	TEST_PAUSE;
-}
+#include <stdlib.h>
+#include "tst_test.h"
 
-static void wait_verify(void)
+static void verify_wait(void)
 {
-	int fork_pid, status, exit_child = 1;
+	int status, exit_child = 1;
+	pid_t fpid;
 
-	fork_pid = FORK_OR_VFORK();
-	if (fork_pid == -1) {
-		tst_brkm(TBROK | TERRNO, cleanup, "fork() Failure");
-	} else if (fork_pid == 0) {
-		sleep(1);
+	fpid = SAFE_FORK();
+	if (fpid == 0)
 		exit(exit_child);
-	}
 
 	TEST(wait(&status));
+	if (TST_RET == -1) {
+		tst_res(TFAIL | TTERRNO, "wait() failed");
+		return;
+	}
 
-	if (TEST_RETURN == -1) {
-		tst_resm(TFAIL | TTERRNO, "wait(1) Failed");
+	if (fpid != TST_RET) {
+		tst_res(TFAIL, "wait() returned wrong pid %ld, expected %d",
+			TST_RET, fpid);
 	} else if (WIFEXITED(status) && WEXITSTATUS(status) == exit_child) {
-		tst_resm(TPASS, "wait(&status) returned %ld", TEST_RETURN);
+		tst_res(TPASS, "wait() succeeded");
 	} else {
-		tst_resm(TFAIL,
-			 "wait(1) Failed, exit_child - 0x%x, status - 0x%x",
-			 exit_child, status);
+		tst_res(TFAIL, "wait() got wrong exit status 0x%x", status);
 	}
 }
 
-static void cleanup(void)
-{
-}
+static struct tst_test test = {
+	.test_all = verify_wait,
+	.forks_child = 1,
+};
-- 
2.18.1

[LTP] [PATCH 1/2] syscalls/wait01.c: Convert to new API

[Cyril Hrubis]

Hi!
Nice cleanup.

Pushed with a minor fix for the [Description], thanks.

> diff --git a/testcases/kernel/syscalls/wait/wait01.c b/testcases/kernel/syscalls/wait/wait01.c
> index bd22c1191..3af95cf9b 100644
> --- a/testcases/kernel/syscalls/wait/wait01.c
> +++ b/testcases/kernel/syscalls/wait/wait01.c
> @@ -1,81 +1,25 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /*
>   * Copyright (c) 2014 Fujitsu Ltd.
>   * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> - *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of version 2 of the GNU General Public License as
> - * published by the Free Software Foundation.

Also note that this was originally GPL-2.0 only, but since the original
copyright is by fujitsu and you are fujitsu employees I keep the new
licence GPL-2.0-or-later.

-- 
Cyril Hrubis
chrubis@suse.cz

[LTP] [PATCH 2/2] syscalls/wait02.c: Convert to new API

[Cyril Hrubis]

Hi!
> Take use of macros and clean up.
> 
> Signed-off-by: Zenghui Gao <gaozh.jy@fujitsu.com>
> Reviewed-by: Xiao Yang <yangx.jy@fujitsu.com>
> ---
>  testcases/kernel/syscalls/wait/wait02.c | 106 ++++++------------------
>  1 file changed, 25 insertions(+), 81 deletions(-)
> 
> diff --git a/testcases/kernel/syscalls/wait/wait02.c b/testcases/kernel/syscalls/wait/wait02.c
> index 5695c071c..111849f2a 100644
> --- a/testcases/kernel/syscalls/wait/wait02.c
> +++ b/testcases/kernel/syscalls/wait/wait02.c
> @@ -1,103 +1,47 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
>  /*
>   * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
>   *    AUTHOR		: William Roske
>   *    CO-PILOT		: Dave Fenner
> + *\

I'm not sure that starting sequence in the middle of comment would be
picked up by the docparser. Either way the documentation comment should
really be a separate comment.

> + * [Description]
>   *
> - * This program is free software; you can redistribute it and/or modify it
> - * under the terms of version 2 of the GNU General Public License as
> - * published by the Free Software Foundation.

Since this is SGI copyright we have to keep GPL-2.0 for the SPDX as
well.

> - * This program is distributed in the hope that it would be useful, but
> - * WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> - *
> - * Further, this software is distributed without any warranty that it is
> - * free of the rightful claim of any third person regarding infringement
> - * or the like.  Any license provided herein, whether implied or
> - * otherwise, applies only to this software file.  Patent licenses, if
> - * any, provided herein do not apply to combinations of this program with
> - * other software, or any other product whatsoever.
> - *
> - * You should have received a copy of the GNU General Public License along
> - * with this program; if not, write the Free Software Foundation, Inc.,
> - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> - *
> - * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
> - * Mountain View, CA  94043, or:
> - *
> - * http://www.sgi.com
> - *
> - * For further information regarding this notice, see:
> - *
> - * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
> - *
> + * For a terminated child, test whether wait(2) can get its pid
> + * and exit status correctly.
>   */
>  
>  #include <errno.h>
> -#include <string.h>
> -#include <signal.h>
> -#include <stdlib.h>
>  #include <sys/types.h>
>  #include <sys/wait.h>
> -#include "test.h"
> -
> -static void setup(void);
> -static void cleanup(void);
> -
> -char *TCID = "wait02";
> -int TST_TOTAL = 1;
> -
> -static void wait_verify(void);
> -
> -int main(int ac, char **av)
> -{
> -	int lc;
> -
> -	tst_parse_opts(ac, av, NULL, NULL);
> -
> -	setup();
> -
> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
> -		tst_count = 0;
> -		wait_verify();
> -	}
> -
> -	cleanup();
> -	tst_exit();
> -}
> -
> -static void setup(void)
> -{
> -	tst_sig(FORK, DEF_HANDLER, cleanup);
> -
> -	TEST_PAUSE;
> -}
> +#include <stdlib.h>
> +#include "tst_test.h"
>  
> -static void wait_verify(void)
> +static void verify_wait(void)
>  {
> -	int fork_pid, status, exit_child = 1;
> +	int status, exit_child = 1;
> +	pid_t fpid;
>  
> -	fork_pid = FORK_OR_VFORK();
> -	if (fork_pid == -1) {
> -		tst_brkm(TBROK | TERRNO, cleanup, "fork() Failure");
> -	} else if (fork_pid == 0) {
> -		sleep(1);
> +	fpid = SAFE_FORK();
> +	if (fpid == 0)
>  		exit(exit_child);
> -	}
>  
>  	TEST(wait(&status));
> +	if (TST_RET == -1) {
> +		tst_res(TFAIL | TTERRNO, "wait() failed");
> +		return;
> +	}

I guess that we should add TST_EXP_PID(), I guess that it would be
basically the same as TST_EXP_FD(). Can you add it or should I do that?

> -	if (TEST_RETURN == -1) {
> -		tst_resm(TFAIL | TTERRNO, "wait(1) Failed");
> +	if (fpid != TST_RET) {
> +		tst_res(TFAIL, "wait() returned wrong pid %ld, expected %d",
> +			TST_RET, fpid);
>  	} else if (WIFEXITED(status) && WEXITSTATUS(status) == exit_child) {
> -		tst_resm(TPASS, "wait(&status) returned %ld", TEST_RETURN);
> +		tst_res(TPASS, "wait() succeeded");
>  	} else {
> -		tst_resm(TFAIL,
> -			 "wait(1) Failed, exit_child - 0x%x, status - 0x%x",
> -			 exit_child, status);
> +		tst_res(TFAIL, "wait() got wrong exit status 0x%x", status);
>  	}
>  }

This could be made a bit simpler by using return instead of else as:

	if (foo) {
		tst_res(TFAIL, ...);
		return;
	}

	if (bar) {
		tst_res(TPASS, ...);
		return;
	}

	tst_res(...);

At least I find this style more readable.

-- 
Cyril Hrubis
chrubis@suse.cz

[LTP] [PATCH 2/2] syscalls/wait02.c: Convert to new API

[Xiao Yang]

On 4/16/21 8:16 PM, Cyril Hrubis wrote:
> Hi!
>> Take use of macros and clean up.
>>
>> Signed-off-by: Zenghui Gao <gaozh.jy@fujitsu.com>
>> Reviewed-by: Xiao Yang <yangx.jy@fujitsu.com>
>> ---
>>   testcases/kernel/syscalls/wait/wait02.c | 106 ++++++------------------
>>   1 file changed, 25 insertions(+), 81 deletions(-)
>>
>> diff --git a/testcases/kernel/syscalls/wait/wait02.c b/testcases/kernel/syscalls/wait/wait02.c
>> index 5695c071c..111849f2a 100644
>> --- a/testcases/kernel/syscalls/wait/wait02.c
>> +++ b/testcases/kernel/syscalls/wait/wait02.c
>> @@ -1,103 +1,47 @@
>> +// SPDX-License-Identifier: GPL-2.0-or-later
>>   /*
>>    * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
>>    *    AUTHOR		: William Roske
>>    *    CO-PILOT		: Dave Fenner
>> + *\
> I'm not sure that starting sequence in the middle of comment would be
> picked up by the docparser. Either way the documentation comment should
> really be a separate comment.
>
>> + * [Description]
>>    *
>> - * This program is free software; you can redistribute it and/or modify it
>> - * under the terms of version 2 of the GNU General Public License as
>> - * published by the Free Software Foundation.
> Since this is SGI copyright we have to keep GPL-2.0 for the SPDX as
> well.
>
>> - * This program is distributed in the hope that it would be useful, but
>> - * WITHOUT ANY WARRANTY; without even the implied warranty of
>> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>> - *
>> - * Further, this software is distributed without any warranty that it is
>> - * free of the rightful claim of any third person regarding infringement
>> - * or the like.  Any license provided herein, whether implied or
>> - * otherwise, applies only to this software file.  Patent licenses, if
>> - * any, provided herein do not apply to combinations of this program with
>> - * other software, or any other product whatsoever.
>> - *
>> - * You should have received a copy of the GNU General Public License along
>> - * with this program; if not, write the Free Software Foundation, Inc.,
>> - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
>> - *
>> - * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
>> - * Mountain View, CA  94043, or:
>> - *
>> - * http://www.sgi.com
>> - *
>> - * For further information regarding this notice, see:
>> - *
>> - * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
>> - *
>> + * For a terminated child, test whether wait(2) can get its pid
>> + * and exit status correctly.
>>    */
>>   
>>   #include <errno.h>
>> -#include <string.h>
>> -#include <signal.h>
>> -#include <stdlib.h>
>>   #include <sys/types.h>
>>   #include <sys/wait.h>
>> -#include "test.h"
>> -
>> -static void setup(void);
>> -static void cleanup(void);
>> -
>> -char *TCID = "wait02";
>> -int TST_TOTAL = 1;
>> -
>> -static void wait_verify(void);
>> -
>> -int main(int ac, char **av)
>> -{
>> -	int lc;
>> -
>> -	tst_parse_opts(ac, av, NULL, NULL);
>> -
>> -	setup();
>> -
>> -	for (lc = 0; TEST_LOOPING(lc); lc++) {
>> -		tst_count = 0;
>> -		wait_verify();
>> -	}
>> -
>> -	cleanup();
>> -	tst_exit();
>> -}
>> -
>> -static void setup(void)
>> -{
>> -	tst_sig(FORK, DEF_HANDLER, cleanup);
>> -
>> -	TEST_PAUSE;
>> -}
>> +#include <stdlib.h>
>> +#include "tst_test.h"
>>   
>> -static void wait_verify(void)
>> +static void verify_wait(void)
>>   {
>> -	int fork_pid, status, exit_child = 1;
>> +	int status, exit_child = 1;
>> +	pid_t fpid;
>>   
>> -	fork_pid = FORK_OR_VFORK();
>> -	if (fork_pid == -1) {
>> -		tst_brkm(TBROK | TERRNO, cleanup, "fork() Failure");
>> -	} else if (fork_pid == 0) {
>> -		sleep(1);
>> +	fpid = SAFE_FORK();
>> +	if (fpid == 0)
>>   		exit(exit_child);
>> -	}
>>   
>>   	TEST(wait(&status));
>> +	if (TST_RET == -1) {
>> +		tst_res(TFAIL | TTERRNO, "wait() failed");
>> +		return;
>> +	}
> I guess that we should add TST_EXP_PID(), I guess that it would be
> basically the same as TST_EXP_FD(). Can you add it or should I do that?

Hi Cyril,

Thanks for your detailed review.

I will add TST_EXP_PID() and TST_EXP_PID_SILENT() in a seperate patchset 
and Gao will fix all the rest of comments.

Best Regards,

Xiao Yang

>
>> -	if (TEST_RETURN == -1) {
>> -		tst_resm(TFAIL | TTERRNO, "wait(1) Failed");
>> +	if (fpid != TST_RET) {
>> +		tst_res(TFAIL, "wait() returned wrong pid %ld, expected %d",
>> +			TST_RET, fpid);
>>   	} else if (WIFEXITED(status) && WEXITSTATUS(status) == exit_child) {
>> -		tst_resm(TPASS, "wait(&status) returned %ld", TEST_RETURN);
>> +		tst_res(TPASS, "wait() succeeded");
>>   	} else {
>> -		tst_resm(TFAIL,
>> -			 "wait(1) Failed, exit_child - 0x%x, status - 0x%x",
>> -			 exit_child, status);
>> +		tst_res(TFAIL, "wait() got wrong exit status 0x%x", status);
>>   	}
>>   }
> This could be made a bit simpler by using return instead of else as:
>
> 	if (foo) {
> 		tst_res(TFAIL, ...);
> 		return;
> 	}
>
> 	if (bar) {
> 		tst_res(TPASS, ...);
> 		return;
> 	}
>
> 	tst_res(...);
>
> At least I find this style more readable.
>