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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2021-04-09 10:02:30 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2021-04-12 18:38:37 -0300
commit5628f103f5937611730845390928cb43ef716012 (patch)
tree543d9e60e937c887470b1434b94eaca7d0685aae /support
parent2ed18c5b534d9e92fc006202a5af0df6b72e7aca (diff)
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libsupport: Add support_select_modifies_timeout
It will be used on a select() test.
Diffstat (limited to 'support')
-rw-r--r--support/Makefile1
-rw-r--r--support/support.h4
-rw-r--r--support/support_select_modifies_timeout.c29
3 files changed, 34 insertions, 0 deletions
diff --git a/support/Makefile b/support/Makefile
index 900e17f94f..91457d8613 100644
--- a/support/Makefile
+++ b/support/Makefile
@@ -68,6 +68,7 @@ libsupport-routines = \
support_quote_string \
support_record_failure \
support_run_diff \
+ support_select_modifies_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 e023d00857..f730611841 100644
--- a/support/support.h
+++ b/support/support.h
@@ -144,6 +144,10 @@ static __inline bool support_path_support_time64 (const char *path)
/* Return true if stat supports nanoseconds resolution. */
extern bool support_stat_nanoseconds (const char *path);
+/* Return true if select modify the timeout to reflect the amount of time
+ no slept. */
+extern bool support_select_modifies_timeout (void);
+
__END_DECLS
#endif /* SUPPORT_H */
diff --git a/support/support_select_modifies_timeout.c b/support/support_select_modifies_timeout.c
new file mode 100644
index 0000000000..653ea2cc98
--- /dev/null
+++ b/support/support_select_modifies_timeout.c
@@ -0,0 +1,29 @@
+/* Return whether select modifies 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_modifies_timeout (void)
+{
+#ifdef __linux__
+ return true;
+#else
+ return false;
+#endif
+}