diff options
| -rw-r--r-- | support/Makefile | 1 | ||||
| -rw-r--r-- | support/support.h | 4 | ||||
| -rw-r--r-- | support/support_select_modifies_timeout.c | 29 |
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 +} |