This is used in various selftests and will be handy when integrating those with nolibc.
Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de Acked-by: Willy Tarreau w@1wt.eu --- tools/include/nolibc/time.h | 7 +++++++ tools/testing/selftests/nolibc/nolibc-test.c | 12 ++++++++++++ 2 files changed, 19 insertions(+)
diff --git a/tools/include/nolibc/time.h b/tools/include/nolibc/time.h index 48f602b661b300a0bfbac5a231315fc95727c04e..fc387940d51f389d4233bd5712588dced31ae6e5 100644 --- a/tools/include/nolibc/time.h +++ b/tools/include/nolibc/time.h @@ -108,6 +108,13 @@ int clock_settime(clockid_t clockid, struct timespec *tp) }
+static __inline__ +double difftime(time_t time1, time_t time2) +{ + return time1 - time2; +} + + static __attribute__((unused)) time_t time(time_t *tptr) { diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index d73125c41096fd208b7b8719e61efa2da9865673..665d7631fbc6e9ecae469a4b143440ec0a43d4aa 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -1304,6 +1304,17 @@ int run_syscall(int min, int max) return ret; }
+int test_difftime(void) +{ + if (difftime(200., 100.) != 100.) + return 1; + + if (difftime(100., 200.) != -100.) + return 1; + + return 0; +} + int run_stdlib(int min, int max) { int test; @@ -1426,6 +1437,7 @@ int run_stdlib(int min, int max) CASE_TEST(toupper_noop); EXPECT_EQ(1, toupper('A'), 'A'); break; CASE_TEST(abs); EXPECT_EQ(1, abs(-10), 10); break; CASE_TEST(abs_noop); EXPECT_EQ(1, abs(10), 10); break; + CASE_TEST(difftime); EXPECT_ZR(1, test_difftime()); break;
case __LINE__: return ret; /* must be last */