//===----------------------------------------------------------------------===//
#include <__threading_support>
+#define NOMINMAX
+#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <process.h>
#include <fibersapi.h>
static_assert(sizeof(__libcpp_tls_key) == sizeof(DWORD), "");
static_assert(alignof(__libcpp_tls_key) == alignof(DWORD), "");
+static_assert(sizeof(__libcpp_semaphore_t) == sizeof(HANDLE), "");
+static_assert(alignof(__libcpp_semaphore_t) == alignof(HANDLE), "");
+
// Mutex
int __libcpp_recursive_mutex_init(__libcpp_recursive_mutex_t *__m)
{
return 0;
}
+// Semaphores
+bool __libcpp_semaphore_init(__libcpp_semaphore_t* __sem, int __init)
+{
+ *(PHANDLE)__sem = CreateSemaphoreEx(nullptr, __init, _LIBCPP_SEMAPHORE_MAX,
+ nullptr, 0, SEMAPHORE_ALL_ACCESS);
+ return *__sem != nullptr;
+}
+
+bool __libcpp_semaphore_destroy(__libcpp_semaphore_t* __sem)
+{
+ CloseHandle(*(PHANDLE)__sem);
+ return true;
+}
+
+bool __libcpp_semaphore_post(__libcpp_semaphore_t* __sem)
+{
+ return ReleaseSemaphore(*(PHANDLE)__sem, 1, nullptr);
+}
+
+bool __libcpp_semaphore_wait(__libcpp_semaphore_t* __sem)
+{
+ return WaitForSingleObjectEx(*(PHANDLE)__sem, INFINITE, false) ==
+ WAIT_OBJECT_0;
+}
+
+bool __libcpp_semaphore_wait_timed(__libcpp_semaphore_t* __sem,
+ chrono::nanoseconds const& __ns)
+{
+ chrono::milliseconds __ms = std::chrono::ceil<chrono::milliseconds>(__ns);
+ return WaitForSingleObjectEx(*(PHANDLE)__sem, __ms.count(), false) ==
+ WAIT_OBJECT_0;
+}
+
_LIBCPP_END_NAMESPACE_STD