From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 7 Mar 2013 10:31:20 +0000 (+0100)
Subject: Add --parse-only command line option
X-Git-Tag: fio-2.0.15~42
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=111e032d60f2341cfe09accbfcf25ec81b9251e0

Add --parse-only command line option

Sometimes it's useful just being able to verify whether a job
config is valid or not, without actually starting any jobs.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/README b/README
index b662e714..317ddec6 100644
--- a/README
+++ b/README
@@ -134,6 +134,7 @@ Command line
 
 $ fio
 	--debug			Enable some debugging options (see below)
+	--parse-only		Parse options only, don't start any IO
 	--output		Write output to file
 	--runtime		Runtime in seconds
 	--latency-log		Generate per-job latency logs
diff --git a/init.c b/init.c
index 32da42c5..c7226887 100644
--- a/init.c
+++ b/init.c
@@ -34,6 +34,7 @@ static char **ini_file;
 static int max_jobs = FIO_MAX_JOBS;
 static int dump_cmdline;
 static int def_timeout;
+static int parse_only;
 
 static struct thread_data def_thread;
 struct thread_data *threads = NULL;
@@ -150,6 +151,11 @@ static struct option l_opts[FIO_NR_OPTIONS] = {
 		.has_arg	= required_argument,
 		.val		= 'd' | FIO_CLIENT_FLAG,
 	},
+	{
+		.name		= (char *) "parse-only",
+		.has_arg	= no_argument,
+		.val		= 'P' | FIO_CLIENT_FLAG,
+	},
 	{
 		.name		= (char *) "section",
 		.has_arg	= required_argument,
@@ -817,7 +823,7 @@ static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 	/*
 	 * if we are just dumping the output command line, don't add the job
 	 */
-	if (dump_cmdline) {
+	if (dump_cmdline || parse_only) {
 		put_job(td);
 		return 0;
 	}
@@ -1251,6 +1257,7 @@ static void usage(const char *name)
 	printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
 		"\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
 		"\t\t\tdiskutil,job,mutex,profile,time,net\n");
+	printf("  --parse-only\t\tParse options only, don't start any IO\n");
 	printf("  --output\t\tWrite output to file\n");
 	printf("  --runtime\t\tRuntime in seconds\n");
 	printf("  --latency-log\t\tGenerate per-job latency logs\n");
@@ -1528,6 +1535,9 @@ int parse_cmd_line(int argc, char *argv[])
 			if (set_debug(optarg))
 				do_exit++;
 			break;
+		case 'P':
+			parse_only = 1;
+			break;
 		case 'x': {
 			size_t new_size;
 
@@ -1738,7 +1748,7 @@ int parse_options(int argc, char *argv[])
 	fio_options_free(&def_thread);
 
 	if (!thread_number) {
-		if (dump_cmdline)
+		if (dump_cmdline || parse_only)
 			return 0;
 		if (exec_profile)
 			return 0;