mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 08:16:09 +03:00
102 lines
3.3 KiB
C++
102 lines
3.3 KiB
C++
// Copyright (c) 2012 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 "base/win/startup_information.h"
|
|
|
|
#include "base/logging.h"
|
|
|
|
namespace {
|
|
|
|
typedef BOOL (WINAPI *InitializeProcThreadAttributeListFunction)(
|
|
LPPROC_THREAD_ATTRIBUTE_LIST attribute_list,
|
|
DWORD attribute_count,
|
|
DWORD flags,
|
|
PSIZE_T size);
|
|
static InitializeProcThreadAttributeListFunction
|
|
initialize_proc_thread_attribute_list;
|
|
|
|
typedef BOOL (WINAPI *UpdateProcThreadAttributeFunction)(
|
|
LPPROC_THREAD_ATTRIBUTE_LIST attribute_list,
|
|
DWORD flags,
|
|
DWORD_PTR attribute,
|
|
PVOID value,
|
|
SIZE_T size,
|
|
PVOID previous_value,
|
|
PSIZE_T return_size);
|
|
static UpdateProcThreadAttributeFunction update_proc_thread_attribute_list;
|
|
|
|
typedef VOID (WINAPI *DeleteProcThreadAttributeListFunction)(
|
|
LPPROC_THREAD_ATTRIBUTE_LIST lpAttributeList);
|
|
static DeleteProcThreadAttributeListFunction delete_proc_thread_attribute_list;
|
|
|
|
} // namespace
|
|
|
|
namespace base {
|
|
namespace win {
|
|
|
|
StartupInformation::StartupInformation() {
|
|
memset(&startup_info_, 0, sizeof(startup_info_));
|
|
startup_info_.StartupInfo.cb = sizeof(startup_info_);
|
|
|
|
// Load the attribute API functions.
|
|
if (!initialize_proc_thread_attribute_list ||
|
|
!update_proc_thread_attribute_list ||
|
|
!delete_proc_thread_attribute_list) {
|
|
HMODULE module = ::GetModuleHandleW(L"kernel32.dll");
|
|
initialize_proc_thread_attribute_list =
|
|
reinterpret_cast<InitializeProcThreadAttributeListFunction>(
|
|
::GetProcAddress(module, "InitializeProcThreadAttributeList"));
|
|
update_proc_thread_attribute_list =
|
|
reinterpret_cast<UpdateProcThreadAttributeFunction>(
|
|
::GetProcAddress(module, "UpdateProcThreadAttribute"));
|
|
delete_proc_thread_attribute_list =
|
|
reinterpret_cast<DeleteProcThreadAttributeListFunction>(
|
|
::GetProcAddress(module, "DeleteProcThreadAttributeList"));
|
|
}
|
|
}
|
|
|
|
StartupInformation::~StartupInformation() {
|
|
if (startup_info_.lpAttributeList) {
|
|
delete_proc_thread_attribute_list(startup_info_.lpAttributeList);
|
|
delete [] reinterpret_cast<BYTE*>(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;
|
|
initialize_proc_thread_attribute_list(NULL, attribute_count, 0, &size);
|
|
if (size == 0)
|
|
return false;
|
|
|
|
startup_info_.lpAttributeList =
|
|
reinterpret_cast<LPPROC_THREAD_ATTRIBUTE_LIST>(new BYTE[size]);
|
|
if (!initialize_proc_thread_attribute_list(startup_info_.lpAttributeList,
|
|
attribute_count, 0, &size)) {
|
|
delete [] reinterpret_cast<BYTE*>(startup_info_.lpAttributeList);
|
|
startup_info_.lpAttributeList = NULL;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool StartupInformation::UpdateProcThreadAttribute(
|
|
DWORD_PTR attribute,
|
|
void* value,
|
|
size_t size) {
|
|
if (!startup_info_.lpAttributeList)
|
|
return false;
|
|
return !!update_proc_thread_attribute_list(startup_info_.lpAttributeList, 0,
|
|
attribute, value, size, NULL, NULL);
|
|
}
|
|
|
|
} // namespace win
|
|
} // namespace base
|
|
|