wait(bool __old,
memory_order __m = memory_order_seq_cst) const noexcept
{
- std::__atomic_wait(&_M_i, __old,
+ std::__atomic_wait(&_M_i, static_cast<__atomic_flag_data_type>(__old),
[__m, this, __old]()
{ return this->test(__m) != __old; });
}
do
{
__atomic_wait_status __res;
+#ifdef _GLIBCXX_HAVE_LINUX_FUTEX
if constexpr (__platform_wait_uses_type<_Tp>)
{
__res = __detail::__platform_wait_until((__platform_wait_t*)(void*) __addr,
__old, __atime);
}
else
+#endif
{
__res = __w._M_do_wait_until(__version, __atime);
}
if (!__w._M_waiting())
return;
+#ifdef _GLIBCXX_HAVE_LINUX_FUTEX
if constexpr (__platform_wait_uses_type<_Tp>)
{
__platform_notify((__platform_wait_t*)(void*) __addr, __all);
}
else
+#endif
{
__w._M_notify(__all);
}
#include <ext/numeric_traits.h>
#if __has_include(<semaphore.h>)
-#define _GLIBCXX_HAVE_POSIX_SEMAPHORE 1
-#include <semaphore.h>
+# include <semaphore.h>
+# if defined SEM_VALUE_MAX || _POSIX_SEM_VALUE_MAX
+# define _GLIBCXX_HAVE_POSIX_SEMAPHORE 1
+# endif
#endif
#include <chrono>
struct __platform_semaphore
{
using __clock_t = chrono::system_clock;
+#ifdef SEM_VALUE_MAX
static constexpr ptrdiff_t _S_max = SEM_VALUE_MAX;
+#else
+ static constexpr ptrdiff_t _S_max = _POSIX_SEM_VALUE_MAX;
+#endif
explicit __platform_semaphore(ptrdiff_t __count) noexcept
{
-// { dg-options "-std=gnu++2a -pthread" }
+// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
-// { dg-require-effective-target pthread }
// { dg-require-gthreads "" }
+// { dg-additional-options "-pthread" { target pthread } }
+// { dg-skip-if "broken" { ! *-*-*linux } }
// Copyright (C) 2020 Free Software Foundation, Inc.
//
-// { dg-options "-std=gnu++2a -pthread" }
+// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
-// { dg-require-effective-target pthread }
// { dg-require-gthreads "" }
+// { dg-additional-options "-pthread" { target pthread } }
+// { dg-skip-if "broken" { ! *-*-*linux } }
// Copyright (C) 2020 Free Software Foundation, Inc.
//
-// { dg-options "-std=gnu++2a -pthread" }
+// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
-// { dg-require-effective-target pthread }
+// { dg-additional-options "-pthread" { target pthread } }
// { dg-require-gthreads "" }
+// { dg-skip-if "broken" { ! *-*-*linux } }
// Copyright (C) 2020 Free Software Foundation, Inc.
//
-// { dg-options "-std=gnu++2a -pthread" }
+// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
-// { dg-require-effective-target pthread }
// { dg-require-gthreads "" }
+// { dg-additional-options "-pthread" { target pthread } }
+// { dg-skip-if "broken" { ! *-*-*linux } }
// Copyright (C) 2020 Free Software Foundation, Inc.
//
-// { dg-options "-std=gnu++2a -pthread" }
+// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
-// { dg-require-effective-target pthread }
// { dg-require-gthreads "" }
+// { dg-additional-options "-pthread" { target pthread } }
+// { dg-skip-if "broken" { ! *-*-*linux } }
// Copyright (C) 2020 Free Software Foundation, Inc.
//