vendor/lldb/lldb-trunk-r256945

1 files changed, 98 insertions, 0 deletions

diff --git a/source/Host/windows/HostThreadWindows.cpp b/source/Host/windows/HostThreadWindows.cpp
new file mode 100644
index 0000000000000..d59064fb1c156
--- /dev/null
+++ b/source/Host/windows/HostThreadWindows.cpp
@@ -0,0 +1,98 @@
+//===-- HostThreadWindows.cpp -----------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Core/Error.h"
+
+#include "lldb/Host/windows/windows.h"
+#include "lldb/Host/windows/HostThreadWindows.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;
+}
+
+Error
+HostThreadWindows::Join(lldb::thread_result_t *result)
+{
+    Error 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;
+}
+
+Error
+HostThreadWindows::Cancel()
+{
+    Error 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();
+}