| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "mojo/core/scoped_process_handle.h" |
| |
| #include "build/build_config.h" |
| |
| #if defined(OS_WIN) |
| #include <windows.h> |
| #endif |
| |
| namespace mojo { |
| namespace core { |
| |
| namespace { |
| |
| base::ProcessHandle GetCurrentProcessHandle() { |
| #if defined(OS_NACL_NONSFI) |
| // Doesn't really matter, it's not going to be used for anything interesting |
| // under NaCl. |
| return 1; |
| #else |
| return base::GetCurrentProcessHandle(); |
| #endif |
| } |
| |
| } // namespace |
| |
| ScopedProcessHandle::ScopedProcessHandle() = default; |
| |
| ScopedProcessHandle::ScopedProcessHandle(base::ProcessHandle handle) |
| : handle_(handle) { |
| DCHECK_NE(handle, GetCurrentProcessHandle()); |
| } |
| |
| ScopedProcessHandle::ScopedProcessHandle(ScopedProcessHandle&&) = default; |
| |
| ScopedProcessHandle::~ScopedProcessHandle() = default; |
| |
| // static |
| ScopedProcessHandle ScopedProcessHandle::CloneFrom(base::ProcessHandle handle) { |
| DCHECK_NE(handle, GetCurrentProcessHandle()); |
| if (handle == base::kNullProcessHandle) |
| return ScopedProcessHandle(); |
| |
| #if defined(OS_WIN) |
| BOOL ok = ::DuplicateHandle(GetCurrentProcessHandle(), handle, |
| GetCurrentProcessHandle(), &handle, 0, FALSE, |
| DUPLICATE_SAME_ACCESS); |
| DCHECK(ok); |
| #endif |
| return ScopedProcessHandle(handle); |
| } |
| |
| ScopedProcessHandle& ScopedProcessHandle::operator=(ScopedProcessHandle&&) = |
| default; |
| |
| bool ScopedProcessHandle::is_valid() const { |
| #if defined(OS_WIN) |
| return handle_.IsValid(); |
| #else |
| return handle_ != base::kNullProcessHandle; |
| #endif |
| } |
| |
| base::ProcessHandle ScopedProcessHandle::get() const { |
| #if defined(OS_WIN) |
| return handle_.Get(); |
| #else |
| return handle_; |
| #endif |
| } |
| |
| base::ProcessHandle ScopedProcessHandle::release() { |
| #if defined(OS_WIN) |
| return handle_.Take(); |
| #else |
| return handle_; |
| #endif |
| } |
| |
| ScopedProcessHandle ScopedProcessHandle::Clone() const { |
| if (is_valid()) |
| return CloneFrom(get()); |
| return ScopedProcessHandle(); |
| } |
| |
| } // namespace core |
| } // namespace mojo |