On 2021-04-21 05:12, Jonathan Wakely wrote:
On 21/04/21 12:38 +0100, Jonathan Wakely wrote: On 20/04/21 22:12
-0700, Thomas Rodgers wrote: @@ -86,6 +88,24 @@
_GLIBCXX_BEGIN_NAMESPACE_VERSION
}
}
+ _GLIBCXX_ALWAYS_INLINE bool
+ _M_try_acquire() noexcept
+ {
+ for (;;)
+ {
+ auto __err = sem_trywait(&_M_semaphore);
+ if (__err && (errno == EINTR))
+ continue;
+ else if (__err && (errno == EAGAIN))
+ return false;
+ else if (__err)
+ std::terminate();
+ else
+ break;
+ }
+ return true;
+ }
+
_GLIBCXX_ALWAYS_INLINE void
_M_release(std::ptrdiff_t __update) noexcept
{
Please just commit this part to trunk and gcc-11, not the macro
renaming (as that's been fixed by Jakub already).
I think on trunk I'd prefer to do the attached. WDYT?
Looks good to me.
