| 1 | //===-- HostThreadWindows.cpp ---------------------------------------------===// |
|---|
| 2 | // |
|---|
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
|---|
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
|---|
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
|---|
| 6 | // |
|---|
| 7 | //===----------------------------------------------------------------------===// |
|---|
| 8 | |
|---|
| 9 | #include "lldb/Utility/Status.h" |
|---|
| 10 | |
|---|
| 11 | #include "lldb/Host/windows/HostThreadWindows.h" |
|---|
| 12 | #include "lldb/Host/windows/windows.h" |
|---|
| 13 | |
|---|
| 14 | #include "llvm/ADT/STLExtras.h" |
|---|
| 15 | |
|---|
| 16 | using namespace lldb; |
|---|
| 17 | using namespace lldb_private; |
|---|
| 18 | |
|---|
| 19 | static void __stdcall ExitThreadProxy(ULONG_PTR dwExitCode) { |
|---|
| 20 | ::ExitThread(dwExitCode); |
|---|
| 21 | } |
|---|
| 22 | |
|---|
| 23 | HostThreadWindows::HostThreadWindows() |
|---|
| 24 | : HostNativeThreadBase(), m_owns_handle(true) {} |
|---|
| 25 | |
|---|
| 26 | HostThreadWindows::HostThreadWindows(lldb::thread_t thread) |
|---|
| 27 | : HostNativeThreadBase(thread), m_owns_handle(true) {} |
|---|
| 28 | |
|---|
| 29 | HostThreadWindows::~HostThreadWindows() { Reset(); } |
|---|
| 30 | |
|---|
| 31 | void HostThreadWindows::SetOwnsHandle(bool owns) { m_owns_handle = owns; } |
|---|
| 32 | |
|---|
| 33 | Status HostThreadWindows::Join(lldb::thread_result_t *result) { |
|---|
| 34 | Status error; |
|---|
| 35 | if (IsJoinable()) { |
|---|
| 36 | DWORD wait_result = ::WaitForSingleObject(m_thread, INFINITE); |
|---|
| 37 | if (WAIT_OBJECT_0 == wait_result && result) { |
|---|
| 38 | DWORD exit_code = 0; |
|---|
| 39 | if (!::GetExitCodeThread(m_thread, &exit_code)) |
|---|
| 40 | *result = 0; |
|---|
| 41 | *result = exit_code; |
|---|
| 42 | } else if (WAIT_OBJECT_0 != wait_result) |
|---|
| 43 | error = Status(::GetLastError(), eErrorTypeWin32); |
|---|
| 44 | } else |
|---|
| 45 | error = Status(ERROR_INVALID_HANDLE, eErrorTypeWin32); |
|---|
| 46 | |
|---|
| 47 | Reset(); |
|---|
| 48 | return error; |
|---|
| 49 | } |
|---|
| 50 | |
|---|
| 51 | Status HostThreadWindows::Cancel() { |
|---|
| 52 | Status error; |
|---|
| 53 | |
|---|
| 54 | DWORD result = ::QueueUserAPC(::ExitThreadProxy, m_thread, 0); |
|---|
| 55 | error = Status(result, eErrorTypeWin32); |
|---|
| 56 | return error; |
|---|
| 57 | } |
|---|
| 58 | |
|---|
| 59 | lldb::tid_t HostThreadWindows::GetThreadId() const { |
|---|
| 60 | return ::GetThreadId(m_thread); |
|---|
| 61 | } |
|---|
| 62 | |
|---|
| 63 | void HostThreadWindows::Reset() { |
|---|
| 64 | if (m_owns_handle && m_thread != LLDB_INVALID_HOST_THREAD) |
|---|
| 65 | ::CloseHandle(m_thread); |
|---|
| 66 | |
|---|
| 67 | HostNativeThreadBase::Reset(); |
|---|
| 68 | } |
|---|
| 69 | |
|---|
| 70 | bool HostThreadWindows::EqualsThread(lldb::thread_t thread) const { |
|---|
| 71 | return GetThreadId() == ::GetThreadId(thread); |
|---|
| 72 | } |
|---|
| 73 | |
|---|
