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| author | Jonathan Wakely <jwakely@redhat.com> | 2020-08-11 16:16:21 +0100 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2020-08-11 16:16:21 +0100 |
| commit | 5bbb1f3000c57fd4d95969b30fa0e35be6d54ffb (patch) | |
| tree | 3a4d5f7d465de0a98c1f1f3938e9746c772a03a8 /config.sub | |
| parent | 7840b4dc05539cf5575b3e9ff57ff5f6c3da2cae (diff) | |
| download | gcc-5bbb1f3000c57fd4d95969b30fa0e35be6d54ffb.zip gcc-5bbb1f3000c57fd4d95969b30fa0e35be6d54ffb.tar.gz gcc-5bbb1f3000c57fd4d95969b30fa0e35be6d54ffb.tar.bz2 | |
libstdc++: Make std::this_thread functions work without gthreads
The only function in namespace std::this_thread that actually depends on
thread support being present is this_thread::get_id(). The other
functions (yield, sleep_for and sleep_until) can be defined for targets
without gthreads.
A small change is needed in std::this_thread::sleep_for which currently
uses the __gthread_time_t typedef. Since it just calls nanosleep
directly, it should use timespec directly instead of the typedef.
Even std::this_thread::get_id() could be made to work, the only
difficulty is that it returns a value of type std::thread::id and
std::thread is only defined when gthreads support exists.
libstdc++-v3/ChangeLog:
* include/std/thread [!_GLIBCXX_HAS_GTHREADS] (this_thread::yield)
(this_thread::sleep_until): Define.
[!_GLIBCXX_HAS_GTHREADS] (this_thread::sleep_for): Define. Replace
use of __gthread_time_t typedef with timespec.
* src/c++11/thread.cc [!_GLIBCXX_HAS_GTHREADS] (__sleep_for):
Likewise.
* testsuite/30_threads/this_thread/2.cc: Moved to...
* testsuite/30_threads/this_thread/yield.cc: ...here.
* testsuite/30_threads/this_thread/3.cc: Moved to...
* testsuite/30_threads/this_thread/sleep_for-mt.cc: ...here.
* testsuite/30_threads/this_thread/4.cc: Moved to...
* testsuite/30_threads/this_thread/sleep_until-mt.cc: ...here.
* testsuite/30_threads/this_thread/58038.cc: Add
dg-require-sleep.
* testsuite/30_threads/this_thread/60421.cc: Likewise.
* testsuite/30_threads/this_thread/sleep_for.cc: New test.
* testsuite/30_threads/this_thread/sleep_until.cc: New test.
Diffstat (limited to 'config.sub')
0 files changed, 0 insertions, 0 deletions