[v3,2/4] libsupport: Add support_select_normalizes_timeout
Commit Message
It will be used on a select() test.
---
support/Makefile | 1 +
support/support.h | 4 +++
support/support_select_normalizes_timeout.c | 29 +++++++++++++++++++++
3 files changed, 34 insertions(+)
create mode 100644 support/support_select_normalizes_timeout.c
Comments
* Adhemerval Zanella via Libc-alpha:
> diff --git a/support/support_select_normalizes_timeout.c b/support/support_select_normalizes_timeout.c
> new file mode 100644
> index 0000000000..5dcf5dcbfc
> --- /dev/null
> +++ b/support/support_select_normalizes_timeout.c
> @@ -0,0 +1,29 @@
> +/* Return whether select normalizes the timeout.
> + Copyright (C) 2021 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + The GNU C Library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + The GNU C Library is distributed in the hope that it will be useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with the GNU C Library; if not, see
> + <https://www.gnu.org/licenses/>. */
> +
> +#include <stdbool.h>
Likewise <support/support.h>
Okay with that change.
Thanks,
Florian
@@ -69,6 +69,7 @@ libsupport-routines = \
support_record_failure \
support_run_diff \
support_select_modifies_timeout \
+ support_select_normalizes_timeout \
support_set_small_thread_stack_size \
support_shared_allocate \
support_small_stack_thread_attribute \
@@ -148,6 +148,10 @@ extern bool support_stat_nanoseconds (const char *path);
no slept. */
extern bool support_select_modifies_timeout (void);
+/* Return true if select normalize the timeout input by taking in account
+ tv_usec larger than 1000000. */
+extern bool support_select_normalizes_timeout (void);
+
__END_DECLS
#endif /* SUPPORT_H */
new file mode 100644
@@ -0,0 +1,29 @@
+/* Return whether select normalizes the timeout.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <stdbool.h>
+
+bool
+support_select_normalizes_timeout (void)
+{
+#ifdef __linux__
+ return true;
+#else
+ return false;
+#endif
+}