Re: [PATCH i-g-t 3/8] lib: move option parsing into common_init

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Looks fine.

> -----Original Message-----
> From: Thomas Wood [mailto:thomas.wood@xxxxxxxxx]
> Sent: Wednesday, July 23, 2014 11:58 AM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Gore, Tim; daniel.vetter@xxxxxxxx
> Subject: [PATCH i-g-t 3/8] lib: move option parsing into common_init
> 
> Move option parsing into common_init so it can be shared between simple
> tests and tests with subtests. This allows for more common command line
> behaviour across all tests.
> 
> Signed-off-by: Thomas Wood <thomas.wood@xxxxxxxxx>
Reviewed-by: Tim Gore <tim.gore@xxxxxxxxx>
> ---
>  lib/igt_core.c | 118 ++++++++++++++++++++++++++++++++++++------------
> ---------
>  1 file changed, 74 insertions(+), 44 deletions(-)
> 
> diff --git a/lib/igt_core.c b/lib/igt_core.c index 5c20581..ee6f90c 100644
> --- a/lib/igt_core.c
> +++ b/lib/igt_core.c
> @@ -291,30 +291,11 @@ static void oom_adjust_for_doom(void)
>  	igt_assert(write(fd, always_kill, sizeof(always_kill)) ==
> sizeof(always_kill));  }
> 
> -/**
> - * igt_subtest_init_parse_opts:
> - * @argc: argc from the test's main()
> - * @argv: argv from the test's main()
> - * @extra_short_opts: getopt_long() compliant list with additional short
> options
> - * @extra_long_opts: getopt_long() compliant list with additional long
> options
> - * @help_str: help string for the additional options
> - * @extra_opt_handler: handler for the additional options
> - *
> - * This function handles the subtest related cmdline options and allows an
> - * arbitrary set of additional options. This is useful for tests which have
> - * additional knobs to tune when run manually like the number of rounds
> execute
> - * or the size of the allocated buffer objects.
> - *
> - * Tests without special needs should just use igt_subtest_init() or use
> - * #igt_main directly instead of their own main() function.
> - *
> - * Returns: Forwards any option parsing errors from getopt_long.
> - */
> -int igt_subtest_init_parse_opts(int argc, char **argv,
> -				const char *extra_short_opts,
> -				struct option *extra_long_opts,
> -				const char *help_str,
> -				igt_opt_handler_t extra_opt_handler)
> +static int common_init(int argc, char **argv,
> +		       const char *extra_short_opts,
> +		       struct option *extra_long_opts,
> +		       const char *help_str,
> +		       igt_opt_handler_t extra_opt_handler)
>  {
>  	int c, option_index = 0;
>  	static struct option long_options[] = { @@ -328,8 +309,18 @@ int
> igt_subtest_init_parse_opts(int argc, char **argv,
>  	int extra_opt_count;
>  	int all_opt_count;
>  	int ret = 0;
> +	char *env = getenv("IGT_LOG_LEVEL");
> 
> -	test_with_subtests = true;
> +	if (env) {
> +		if (strcmp(env, "debug") == 0)
> +			igt_log_level = IGT_LOG_DEBUG;
> +		else if (strcmp(env, "info") == 0)
> +			igt_log_level = IGT_LOG_INFO;
> +		else if (strcmp(env, "warn") == 0)
> +			igt_log_level = IGT_LOG_WARN;
> +		else if (strcmp(env, "none") == 0)
> +			igt_log_level = IGT_LOG_NONE;
> +	}
> 
>  	command_str = argv[0];
>  	if (strrchr(command_str, '/'))
> @@ -389,36 +380,70 @@ int igt_subtest_init_parse_opts(int argc, char
> **argv,
>  		}
>  	}
> 
> -	igt_install_exit_handler(check_igt_exit);
>  	oom_adjust_for_doom();
> 
>  out:
>  	free(short_opts);
>  	free(combined_opts);
> +
> +	/* exit immediately if this test has no subtests and a subtest or the
> +	 * list of subtests has been requested */
> +	if (!test_with_subtests) {
> +		if (run_single_subtest) {
> +			igt_warn("Unknown subtest: %s\n",
> run_single_subtest);
> +			exit(-1);
> +		}
> +		if (list_subtests)
> +			exit(-1);
> +	}
> +
> +	if (ret < 0)
> +		/* exit with no error for -h/--help */
> +		exit(ret == -1 ? 0 : ret);
> +
>  	print_version();
> 
>  	return ret;
>  }
> 
> -enum igt_log_level igt_log_level = IGT_LOG_INFO;
> 
> -static void common_init(void)
> +/**
> + * igt_subtest_init_parse_opts:
> + * @argc: argc from the test's main()
> + * @argv: argv from the test's main()
> + * @extra_short_opts: getopt_long() compliant list with additional
> +short options
> + * @extra_long_opts: getopt_long() compliant list with additional long
> +options
> + * @help_str: help string for the additional options
> + * @extra_opt_handler: handler for the additional options
> + *
> + * This function handles the subtest related cmdline options and allows
> +an
> + * arbitrary set of additional options. This is useful for tests which
> +have
> + * additional knobs to tune when run manually like the number of rounds
> +execute
> + * or the size of the allocated buffer objects.
> + *
> + * Tests without special needs should just use igt_subtest_init() or
> +use
> + * #igt_main directly instead of their own main() function.
> + *
> + * Returns: Forwards any option parsing errors from getopt_long.
> + */
> +int igt_subtest_init_parse_opts(int argc, char **argv,
> +				const char *extra_short_opts,
> +				struct option *extra_long_opts,
> +				const char *help_str,
> +				igt_opt_handler_t extra_opt_handler)
>  {
> -	char *env = getenv("IGT_LOG_LEVEL");
> +	int ret;
> 
> -	if (!env)
> -		return;
> +	test_with_subtests = true;
> +	ret = common_init(argc, argv, extra_short_opts, extra_long_opts,
> +			  help_str, extra_opt_handler);
> +	igt_install_exit_handler(check_igt_exit);
> 
> -	if (strcmp(env, "debug") == 0)
> -		igt_log_level = IGT_LOG_DEBUG;
> -	else if (strcmp(env, "info") == 0)
> -		igt_log_level = IGT_LOG_INFO;
> -	else if (strcmp(env, "warn") == 0)
> -		igt_log_level = IGT_LOG_WARN;
> -	else if (strcmp(env, "none") == 0)
> -		igt_log_level = IGT_LOG_NONE;
> +	return ret;
>  }
> 
> +enum igt_log_level igt_log_level = IGT_LOG_INFO;
> +
>  /**
>   * igt_subtest_init:
>   * @argc: argc from the test's main()
> @@ -446,8 +471,6 @@ void igt_subtest_init(int argc, char **argv)
> 
>  	/* reset opt parsing */
>  	optind = 1;
> -
> -	common_init();
>  }
> 
>  /**
> @@ -463,11 +486,18 @@ void igt_subtest_init(int argc, char **argv)
>   */
>  void igt_simple_init(int argc, char **argv)  {
> -	print_version();
> +	int ret;
> 
> -	oom_adjust_for_doom();
> +	/* supress getopt errors about unknown options */
> +	opterr = 0;
> +
> +	ret = common_init(argc, argv, NULL, NULL, NULL, NULL);
> +	if (ret < 0)
> +		/* exit with no error for -h/--help */
> +		exit(ret == -1 ? 0 : ret);
> 
> -	common_init();
> +	/* reset opt parsing */
> +	optind = 1;
>  }
> 
>  /*
> --
> 1.9.3

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