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* [glibc] libsupport: Add support_select_normalizes_timeout
@ 2021-04-12 22:01 Adhemerval Zanella
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From: Adhemerval Zanella @ 2021-04-12 22:01 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=49a40ba18e2cb948259771317fe6ff6f5eb68683
commit 49a40ba18e2cb948259771317fe6ff6f5eb68683
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Fri Apr 9 10:05:13 2021 -0300
libsupport: Add support_select_normalizes_timeout
It will be used on a select() test.
Diff:
---
support/Makefile | 1 +
support/support.h | 4 ++++
support/support_select_normalizes_timeout.c | 29 +++++++++++++++++++++++++++++
3 files changed, 34 insertions(+)
diff --git a/support/Makefile b/support/Makefile
index 91457d8613..da6dc58d37 100644
--- a/support/Makefile
+++ b/support/Makefile
@@ -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 \
diff --git a/support/support.h b/support/support.h
index f730611841..db264e3db7 100644
--- a/support/support.h
+++ b/support/support.h
@@ -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 */
diff --git a/support/support_select_normalizes_timeout.c b/support/support_select_normalizes_timeout.c
new file mode 100644
index 0000000000..987f9b035e
--- /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 <support/support.h>
+
+bool
+support_select_normalizes_timeout (void)
+{
+#ifdef __linux__
+ return true;
+#else
+ return false;
+#endif
+}
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