[libcxx] Don't assume __libcpp_thread_t is an integral type
We have already refactored the underlying platform thread type into
__libcpp_thread_t, but there are few places in the source where we
still assume it is an integral type.
This patch refactores those points back into the threading API.
Differential revision: https://reviews.llvm.org/D28608
Reviewers: EricWF
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@292107 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__threading_support b/include/__threading_support
index 8ecc0ed..13ab769 100644
--- a/include/__threading_support
+++ b/include/__threading_support
@@ -61,6 +61,8 @@
typedef pthread_t __libcpp_thread_id;
// Thread
+#define _LIBCPP_NULL_THREAD 0U
+
typedef pthread_t __libcpp_thread_t;
// Thrad Local Storage
@@ -86,6 +88,8 @@
typedef DWORD __libcpp_thread_id;
// Thread
+#define _LIBCPP_NULL_THREAD 0U
+
typedef HANDLE __libcpp_thread_t;
// Thread Local Storage
@@ -158,6 +162,9 @@
// Thread
_LIBCPP_THREAD_ABI_VISIBILITY
+bool __libcpp_thread_isnull(const __libcpp_thread_t *__t);
+
+_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_thread_create(__libcpp_thread_t *__t, void *(*__func)(void *),
void *__arg);
@@ -309,6 +316,10 @@
}
// Thread
+bool __libcpp_thread_isnull(const __libcpp_thread_t *__t) {
+ return *__t == 0;
+}
+
int __libcpp_thread_create(__libcpp_thread_t *__t, void *(*__func)(void *),
void *__arg)
{
@@ -506,6 +517,10 @@
return static_cast<unsigned>(reinterpret_cast<uintptr_t>(__func(__arg)));
}
+bool __libcpp_thread_isnull(const __libcpp_thread_t *__t) {
+ return *__t == 0;
+}
+
int __libcpp_thread_create(__libcpp_thread_t *__t, void *(*__func)(void *),
void *__arg)
{