[LTP] [PATCH v3] flock: Add test for verifying EINTR errno

[Avinesh Kumar]

On Monday, February 3, 2025 3:22:13 PM CET Petr Vorel wrote:
> Hi Avinesh, all,
> 
> ...
> > +++ b/testcases/kernel/syscalls/flock/flock07.c
> ...
> > +static void handler(int sig)
> > +{
> > +	tst_res(TINFO, "Received signal: %d", sig);
> How about print a signal constant/name?
> 
> 	tst_res(TINFO, "Received signal: %s (%d)", tst_strsig(sig), sig);
> > +}
> ...
> > +static void verify_flock(void)
> > +{
> > +	pid_t pid;
> > +	int fd1 = SAFE_OPEN(TEMPFILE, O_RDWR);
> > +	int fd2 = SAFE_OPEN(TEMPFILE, O_RDWR);
> How about to setup file descriptors in setup() and close them in cleanup()?
> 
> I suggest to merge with the change below.
Hi Petr,

Thank you for the review, and I agree with your suggestions.

Regards,
Avinesh

> 
> > +
> > +	TST_EXP_PASS(flock(fd1, LOCK_EX));
> > +
> > +	pid = SAFE_FORK();
> > +	if (!pid) {
> > +		child_do(fd2);
> > +		exit(0);
> > +	} else {
> > +		sleep(1);
> > +		SAFE_KILL(pid, SIGUSR1);
> > +		SAFE_WAITPID(pid, NULL, 0);
> > +	}
> > +
> > +	SAFE_CLOSE(fd1);
> > +	SAFE_CLOSE(fd2);
> > +}
> 
> Kind regards,
> Petr
> 
> +++ testcases/kernel/syscalls/flock/flock07.c
> @@ -17,14 +17,27 @@
>  
>  #define TEMPFILE "test_eintr"
>  
> +static int fd1 = -1, fd2 = -1;
> +
>  static void handler(int sig)
>  {
> -	tst_res(TINFO, "Received signal: %d", sig);
> +	tst_res(TINFO, "Received signal: %s (%d)", tst_strsig(sig), sig);
>  }
>  
>  static void setup(void)
>  {
>  	SAFE_TOUCH(TEMPFILE, 0777, NULL);
> +	fd1 = SAFE_OPEN(TEMPFILE, O_RDWR);
> +	fd2 = SAFE_OPEN(TEMPFILE, O_RDWR);
> +}
> +
> +static void cleanup(void)
> +{
> +	if (fd1 >= 0)
> +		SAFE_CLOSE(fd1);
> +
> +	if (fd2 >= 0)
> +		SAFE_CLOSE(fd2);
>  }
>  
>  static void child_do(int fd)
> @@ -42,8 +55,6 @@ static void child_do(int fd)
>  static void verify_flock(void)
>  {
>  	pid_t pid;
> -	int fd1 = SAFE_OPEN(TEMPFILE, O_RDWR);
> -	int fd2 = SAFE_OPEN(TEMPFILE, O_RDWR);
>  
>  	TST_EXP_PASS(flock(fd1, LOCK_EX));
>  
> @@ -56,13 +67,11 @@ static void verify_flock(void)
>  		SAFE_KILL(pid, SIGUSR1);
>  		SAFE_WAITPID(pid, NULL, 0);
>  	}
> -
> -	SAFE_CLOSE(fd1);
> -	SAFE_CLOSE(fd2);
>  }
>  
>  static struct tst_test test = {
>  	.setup = setup,
> +	.cleanup = cleanup,
>  	.test_all = verify_flock,
>  	.needs_tmpdir = 1,
>  	.needs_root = 1,
>