Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 74 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/source/Host/windows/HostThreadWindows.cpp b/gnu/llvm/lldb/source/Host/windows/HostThreadWindows.cpp
new file mode 100644
index 00000000000..3eaaee28089
--- /dev/null
+++ b/gnu/llvm/lldb/source/Host/windows/HostThreadWindows.cpp
@@ -0,0 +1,74 @@
+//===-- HostThreadWindows.cpp -----------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Utility/Status.h"
+
+#include "lldb/Host/windows/HostThreadWindows.h"
+#include "lldb/Host/windows/windows.h"
+
+#include "llvm/ADT/STLExtras.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+namespace {
+void __stdcall ExitThreadProxy(ULONG_PTR dwExitCode) {
+  ::ExitThread(dwExitCode);
+}
+}
+
+HostThreadWindows::HostThreadWindows()
+    : HostNativeThreadBase(), m_owns_handle(true) {}
+
+HostThreadWindows::HostThreadWindows(lldb::thread_t thread)
+    : HostNativeThreadBase(thread), m_owns_handle(true) {}
+
+HostThreadWindows::~HostThreadWindows() { Reset(); }
+
+void HostThreadWindows::SetOwnsHandle(bool owns) { m_owns_handle = owns; }
+
+Status HostThreadWindows::Join(lldb::thread_result_t *result) {
+  Status error;
+  if (IsJoinable()) {
+    DWORD wait_result = ::WaitForSingleObject(m_thread, INFINITE);
+    if (WAIT_OBJECT_0 == wait_result && result) {
+      DWORD exit_code = 0;
+      if (!::GetExitCodeThread(m_thread, &exit_code))
+        *result = 0;
+      *result = exit_code;
+    } else if (WAIT_OBJECT_0 != wait_result)
+      error.SetError(::GetLastError(), eErrorTypeWin32);
+  } else
+    error.SetError(ERROR_INVALID_HANDLE, eErrorTypeWin32);
+
+  Reset();
+  return error;
+}
+
+Status HostThreadWindows::Cancel() {
+  Status error;
+
+  DWORD result = ::QueueUserAPC(::ExitThreadProxy, m_thread, 0);
+  error.SetError(result, eErrorTypeWin32);
+  return error;
+}
+
+lldb::tid_t HostThreadWindows::GetThreadId() const {
+  return ::GetThreadId(m_thread);
+}
+
+void HostThreadWindows::Reset() {
+  if (m_owns_handle && m_thread != LLDB_INVALID_HOST_THREAD)
+    ::CloseHandle(m_thread);
+
+  HostNativeThreadBase::Reset();
+}
+
+bool HostThreadWindows::EqualsThread(lldb::thread_t thread) const {
+  return GetThreadId() == ::GetThreadId(thread);
+}