diff options
| -rw-r--r-- | posix/Makefile | 2 | ||||
| -rw-r--r-- | posix/Versions | 1 | ||||
| -rw-r--r-- | posix/nanosleep64.c | 56 |
3 files changed, 58 insertions, 1 deletions
diff --git a/posix/Makefile b/posix/Makefile index a66d6db..f40096c 100644 --- a/posix/Makefile +++ b/posix/Makefile @@ -63,7 +63,7 @@ routines := \ spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \ posix_madvise \ get_child_max sched_cpucount sched_cpualloc sched_cpufree \ - sched_rr_gi64 + sched_rr_gi64 nanosleep64 aux := init-posix environ tests := test-errno tstgetopt testfnm runtests runptests \ diff --git a/posix/Versions b/posix/Versions index deb1be1..56b8f6f 100644 --- a/posix/Versions +++ b/posix/Versions @@ -139,6 +139,7 @@ libc { } GLIBC_2.29 { __sched_rr_get_interval_time64; + __nanosleep64; } GLIBC_PRIVATE { __libc_fork; __libc_pread; __libc_pwrite; diff --git a/posix/nanosleep64.c b/posix/nanosleep64.c new file mode 100644 index 0000000..ae4805d --- /dev/null +++ b/posix/nanosleep64.c @@ -0,0 +1,56 @@ +/* Pause execution for a number of nanoseconds + + Copyright (C) 2018 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 + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <time.h> + +/* Pause execution for a number of nanoseconds. */ +int +__nanosleep64 (const struct __timespec64 *requested_time, + struct __timespec64 *remaining) +{ + struct timespec treq32, *treqp32 = NULL; + struct timespec trem32, *tremp32 = NULL; + + if (requested_time) + { + if (requested_time->tv_sec > INT_MAX) + { + __set_errno(EOVERFLOW); + return -1; + } + treq32.tv_sec = requested_time->tv_sec; + treq32.tv_nsec = requested_time->tv_nsec; + treqp32 = & treq32; + } + + if (remaining) + tremp32 = &trem32; + + int result = __nanosleep(treqp32, tremp32); + + if (result == 1 && errno == EINTR && remaining) + { + remaining->tv_sec = trem32.tv_sec; + remaining->tv_nsec = trem32.tv_nsec; + remaining->tv_pad = 0; + } + + return result; +} |