[LTP] [RFC PATCH 1/1] lib: Print tcnt in tst_{brk,res}()

[Petr Vorel]

This helps readability on tests with high tcnt.

Inspired by tst_test.sh (shell API) which prints $TST_COUNT in tst_res
and tst_brk.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
NOTE: testing on open01.c which has tcnt = 2.
Before:
tst_tmpdir.c:308: TINFO: Using /tmp/LTP_opebwazQS as tmpdir (tmpfs filesystem)
tst_test.c:2059: TINFO: LTP version: 20260130-78-g68660b12c8
tst_test.c:1887: TINFO: Overall timeout per run is 0h 00m 30s
open01.c:56: TPASS: sticky bit is set as expected
open01.c:56: TPASS: directory bit is set as expected

With the patch:

tst_tmpdir.c:308: 1 TINFO: Using /tmp/LTP_opezEOyj2 as tmpdir (tmpfs filesystem)
tst_test.c:2059: 1 TINFO: LTP version: 20260130-79-g8d8379aa73
tst_test.c:1887: 1 TINFO: Overall timeout per run is 0h 00m 30s
open01.c:56: 1 TPASS: sticky bit is set as expected
open01.c:56: 2 TPASS: directory bit is set as expected

Setup has "1", cleanup has tcnt + 1. We could even print "0" for setup
or even for cleanup as well.

Kind regards,
Petr

 lib/tst_test.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/tst_test.c b/lib/tst_test.c
index 2d62ab164d..b9593b743a 100644
--- a/lib/tst_test.c
+++ b/lib/tst_test.c
@@ -69,6 +69,7 @@ static float duration = -1;
 static float timeout_mul = -1;
 static int reproducible_output;
 static int quiet_output;
+static unsigned int tcnt;
 
 struct context {
 	int32_t lib_pid;
@@ -344,7 +345,7 @@ static void print_result(const char *file, const int lineno, int ttype,
 		str_errno = tst_strerrno(int_errno);
 	}
 
-	ret = snprintf(str, size, "%s:%i: ", file, lineno);
+	ret = snprintf(str, size, "%s:%i: %u ", file, lineno, tcnt+1);
 	str += ret;
 	size -= ret;
 
@@ -1705,7 +1706,6 @@ static void heartbeat(void)
 
 static void run_tests(void)
 {
-	unsigned int i;
 	struct results saved_results;
 
 	if (!tst_test->test) {
@@ -1724,10 +1724,10 @@ static void run_tests(void)
 		return;
 	}
 
-	for (i = 0; i < tst_test->tcnt; i++) {
+	for (tcnt = 0; tcnt < tst_test->tcnt; tcnt++) {
 		saved_results = *results;
 		heartbeat();
-		tst_test->test(i);
+		tst_test->test(tcnt);
 
 		if (tst_getpid() != context->main_pid)
 			exit(0);
@@ -1735,7 +1735,7 @@ static void run_tests(void)
 		tst_reap_children();
 
 		if (results_equal(&saved_results, results))
-			tst_brk(TBROK, "Test %i haven't reported results!", i);
+			tst_brk(TBROK, "Test %i haven't reported results!", tcnt);
 	}
 }
 
-- 
2.51.0