[PATCH i-g-t 14/15] lib/igt_core: introduce --loop.

[Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>]

This loop option can help intensive tests everywhere.
The only caveat is that tests reimplementing main function has to implement his own loop.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
---
 lib/igt_core.c | 11 +++++++++++
 lib/igt_core.h | 18 ++++++++++++------
 2 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/lib/igt_core.c b/lib/igt_core.c
index bd655be..3724348 100644
--- a/lib/igt_core.c
+++ b/lib/igt_core.c
@@ -234,6 +234,7 @@ enum {
  OPT_DESCRIPTION,
  OPT_DEBUG,
  OPT_INTERACTIVE_DEBUG,
+ OPT_LOOP,
  OPT_HELP = 'h'
 };
 
@@ -405,6 +406,7 @@ static void print_usage(const char *help_str, bool output_on_stderr)
 		   "  --run-subtest <pattern>\n"
 		   "  --debug[=log-domain]\n"
 		   "  --interactive-debug[=domain]\n"
+		   "  --loop[=times]\n"
 		   "  --help-description\n"
 		   "  --help\n");
 	if (help_str)
@@ -438,6 +440,7 @@ static int common_init(int argc, char **argv,
 		{"help-description", 0, 0, OPT_DESCRIPTION},
 		{"debug", optional_argument, 0, OPT_DEBUG},
 		{"interactive-debug", optional_argument, 0, OPT_INTERACTIVE_DEBUG},
+		{"loop", optional_argument, 0, OPT_LOOP},
 		{"help", 0, 0, OPT_HELP},
 		{0, 0, 0, 0}
 	};
@@ -520,9 +523,17 @@ static int common_init(int argc, char **argv,
 		       std_short_opts);
 	assert(ret >= 0);
 
+	igt_loop = 0;
+
 	while ((c = getopt_long(argc, argv, short_opts, combined_opts,
 			       &option_index)) != -1) {
 		switch(c) {
+		case OPT_LOOP:
+			if (optarg && strlen(optarg) > 0)
+				igt_loop = atoi(optarg);
+			else
+				igt_loop = -1;
+			break;
 		case OPT_INTERACTIVE_DEBUG:
 			if (optarg && strlen(optarg) > 0)
 				igt_interactive_debug = strdup(optarg);
diff --git a/lib/igt_core.h b/lib/igt_core.h
index 32041f6..4dbe893 100644
--- a/lib/igt_core.h
+++ b/lib/igt_core.h
@@ -175,9 +175,11 @@ bool igt_only_list_subtests(void);
 #define igt_main \
 	static void igt_tokencat(__real_main, __LINE__)(void); \
 	int main(int argc, char **argv) { \
-		igt_subtest_init(argc, argv); \
-		igt_tokencat(__real_main, __LINE__)(); \
-		igt_exit(); \
+		do { \
+			igt_subtest_init(argc, argv);  \
+			igt_tokencat(__real_main, __LINE__)();	\
+			igt_exit();				\
+		} while (igt_loop == -1 || --igt_loop);		\
 	} \
 	static void igt_tokencat(__real_main, __LINE__)(void) \
 
@@ -198,9 +200,11 @@ void igt_simple_init_parse_opts(int argc, char **argv,
 #define igt_simple_main \
 	static void igt_tokencat(__real_main, __LINE__)(void); \
 	int main(int argc, char **argv) { \
-		igt_simple_init(argc, argv); \
-		igt_tokencat(__real_main, __LINE__)(); \
-		igt_exit(); \
+		do { \
+			igt_simple_init(argc, argv);   \
+			igt_tokencat(__real_main, __LINE__)();	\
+			igt_exit();					\
+		} while (igt_loop == -1 || --igt_loop);			\
 	} \
 	static void igt_tokencat(__real_main, __LINE__)(void) \
 
@@ -511,6 +515,8 @@ bool igt_run_in_simulation(void);
 
 void igt_skip_on_simulation(void);
 
+int igt_loop;
+
 const char *igt_interactive_debug;
 
 /* structured logging */
-- 
2.1.0

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