LineageOS/android_external_libcxx
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provide Win32 native threading

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Add an implementation for the Win32 threading model as a backing API for
the internal c++ threading interfaces.  This uses the Fls* family for
the TLS (which has the support for adding termination callbacks),
CRITICAL_SECTIONs for the recursive mutex, and Slim Reader/Writer locks
(SRW locks) for non-recursive mutexes.  These APIs should all be
available on Vista or newer.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291333 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool
2017-01-07 03:07:45 +00:00
parent 32b19c3d9f
commit 678eadd13f
3 changed files with 263 additions and 9 deletions
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15
include/thread
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@@ -148,7 +148,8 @@ class __thread_specific_ptr
__thread_specific_ptr(const __thread_specific_ptr&);
__thread_specific_ptr& operator=(const __thread_specific_ptr&);
static void __at_thread_exit(void*);
static void _LIBCPP_TLS_DESTRUCTOR_CC __at_thread_exit(void*);
public:
typedef _Tp* pointer;
@@ -164,7 +165,7 @@ public:
};
template <class _Tp>
void
void _LIBCPP_TLS_DESTRUCTOR_CC
__thread_specific_ptr<_Tp>::__at_thread_exit(void* __p)
{
delete static_cast<pointer>(__p);
@@ -173,12 +174,10 @@ __thread_specific_ptr<_Tp>::__at_thread_exit(void* __p)
template <class _Tp>
__thread_specific_ptr<_Tp>::__thread_specific_ptr()
{
int __ec = __libcpp_tls_create(
&__key_,
&__thread_specific_ptr::__at_thread_exit);
if (__ec)
__throw_system_error(__ec,
"__thread_specific_ptr construction failed");
int __ec =
__libcpp_tls_create(&__key_, &__thread_specific_ptr::__at_thread_exit);
if (__ec)
__throw_system_error(__ec, "__thread_specific_ptr construction failed");
}
template <class _Tp>