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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/win/startup_information.h"
#include <utility>
namespace base {
namespace win {
StartupInformation::StartupInformation() : startup_info_() {
startup_info_.StartupInfo.cb = sizeof(startup_info_);
}
StartupInformation::~StartupInformation() {
if (startup_info_.lpAttributeList) {
::DeleteProcThreadAttributeList(startup_info_.lpAttributeList);
}
}
bool StartupInformation::InitializeProcThreadAttributeList(
DWORD attribute_count) {
if (startup_info_.StartupInfo.cb != sizeof(startup_info_) ||
startup_info_.lpAttributeList) {
return false;
}
SIZE_T size = 0;
::InitializeProcThreadAttributeList(nullptr, attribute_count, 0, &size);
if (size == 0) {
return false;
}
auto attribute_list = std::make_unique<char[]>(size);
auto* attribute_list_ptr =
reinterpret_cast<LPPROC_THREAD_ATTRIBUTE_LIST>(attribute_list.get());
if (!::InitializeProcThreadAttributeList(attribute_list_ptr, attribute_count,
0, &size)) {
return false;
}
attribute_list_ = std::move(attribute_list);
startup_info_.lpAttributeList = attribute_list_ptr;
return true;
}
bool StartupInformation::UpdateProcThreadAttribute(DWORD_PTR attribute,
void* value,
size_t size) {
if (!startup_info_.lpAttributeList) {
return false;
}
return !!::UpdateProcThreadAttribute(startup_info_.lpAttributeList, 0,
attribute, value, size, nullptr,
nullptr);
}
} // namespace win
} // namespace base
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