[PATCH v2 05/12] pi_stress: Rename -t command line option to -D

[Daniel Wagner <wagi@monom.org>]

Streamline the duration command line argument for all rt-tests. While
at it also add man page.

Signed-off-by: Daniel Wagner <wagi@monom.org>
---
 src/pi_tests/pi_stress.8 |  4 ++++
 src/pi_tests/pi_stress.c | 11 ++++++-----
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/pi_tests/pi_stress.8 b/src/pi_tests/pi_stress.8
index c92b4bdf5609..475d3c34f135 100644
--- a/src/pi_tests/pi_stress.8
+++ b/src/pi_tests/pi_stress.8
@@ -57,6 +57,10 @@ seconds and then terminate.
 The number of inversion groups to run. Defaults to 10.
 .IP \-d|\-\-debug
 Run in debug mode; lots of extra prints
+.IP "\-D, \-\-duration=TIME"
+Specify a length for the test run.
+.br
+Append 'm', 'h', or 'd' to specify minutes, hours or days.
 .IP \-v|\-\-verbose
 Run with verbose messages
 .IP \-s|\-\-signal
diff --git a/src/pi_tests/pi_stress.c b/src/pi_tests/pi_stress.c
index 543106be8e18..1286370c474b 100644
--- a/src/pi_tests/pi_stress.c
+++ b/src/pi_tests/pi_stress.c
@@ -146,7 +146,7 @@ int lockall = 0;
 
 /* command line options */
 struct option options[] = {
-	{"duration", required_argument, NULL, 't'},
+	{"duration", required_argument, NULL, 'D'},
 	{"verbose", no_argument, NULL, 'v'},
 	{"quiet", no_argument, NULL, 'q'},
 	{"groups", required_argument, NULL, 'g'},
@@ -1027,7 +1027,8 @@ void usage(void)
 	printf("\t--verbose\t- lots of output\n");
 	printf("\t--quiet\t\t- suppress running output\n");
 	printf
-	    ("\t--duration=<n>- length of the test run in seconds [infinite]\n");
+	    ("\t--duration=<n>\t- length of the test run in seconds [infinite]\n");
+	printf("\t\t\t  Append 'm', 'h', or 'd' to specify minutes, hours or days.\n");
 	printf("\t--groups=<n>\t- set the number of inversion groups [%d]\n",
 	       ngroups);
 	printf
@@ -1322,13 +1323,13 @@ int process_sched_line(const char *arg)
 void process_command_line(int argc, char **argv)
 {
 	int opt;
-	while ((opt = getopt_long(argc, argv, "+ht:vqi:g:rs:pdVum", options, NULL)) != -1) {
+	while ((opt = getopt_long(argc, argv, "+hD:vqi:g:rs:pdVum", options, NULL)) != -1) {
 		switch (opt) {
 		case 'h':
 			usage();
 			exit(0);
-		case 't':
-			duration = strtol(optarg, NULL, 10);
+		case 'D':
+			duration = parse_time_string(optarg);
 			break;
 		case 'v':
 			verbose = 1;
-- 
2.20.1