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//===-- 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);
}
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