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d075a9eb2e
These wrap the GetProcAddress(LoadLibrary(), …) idiom into macros that are much less wordy. TEST=crashpad_util_test GetFunction.GetFunction and all others R=scottmg@chromium.org Review URL: https://codereview.chromium.org/1405323003 .
103 lines
4.0 KiB
C++
103 lines
4.0 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "util/win/nt_internals.h"
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#include "base/logging.h"
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#include "util/win/get_function.h"
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// Declarations that the system headers should provide but don’t.
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struct CLIENT_ID;
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NTSTATUS NTAPI NtOpenThread(HANDLE* ThreadHandle,
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ACCESS_MASK DesiredAccess,
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OBJECT_ATTRIBUTES* ObjectAttributes,
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CLIENT_ID* ClientId);
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namespace crashpad {
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NTSTATUS NtQuerySystemInformation(
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SYSTEM_INFORMATION_CLASS system_information_class,
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PVOID system_information,
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ULONG system_information_length,
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PULONG return_length) {
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static const auto nt_query_system_information =
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GET_FUNCTION_REQUIRED(L"ntdll.dll", ::NtQuerySystemInformation);
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return nt_query_system_information(system_information_class,
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system_information,
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system_information_length,
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return_length);
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}
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NTSTATUS NtQueryInformationThread(HANDLE thread_handle,
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THREADINFOCLASS thread_information_class,
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PVOID thread_information,
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ULONG thread_information_length,
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PULONG return_length) {
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static const auto nt_query_information_thread =
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GET_FUNCTION_REQUIRED(L"ntdll.dll", ::NtQueryInformationThread);
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return nt_query_information_thread(thread_handle,
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thread_information_class,
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thread_information,
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thread_information_length,
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return_length);
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}
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template <class Traits>
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NTSTATUS NtOpenThread(PHANDLE thread_handle,
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ACCESS_MASK desired_access,
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POBJECT_ATTRIBUTES object_attributes,
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const process_types::CLIENT_ID<Traits>* client_id) {
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static const auto nt_open_thread =
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GET_FUNCTION_REQUIRED(L"ntdll.dll", ::NtOpenThread);
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return nt_open_thread(
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thread_handle,
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desired_access,
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object_attributes,
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const_cast<CLIENT_ID*>(reinterpret_cast<const CLIENT_ID*>(client_id)));
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}
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NTSTATUS NtQueryObject(HANDLE handle,
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OBJECT_INFORMATION_CLASS object_information_class,
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void* object_information,
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ULONG object_information_length,
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ULONG* return_length) {
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static const auto nt_query_object =
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GET_FUNCTION_REQUIRED(L"ntdll.dll", ::NtQueryObject);
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return nt_query_object(handle,
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object_information_class,
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object_information,
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object_information_length,
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return_length);
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}
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// Explicit instantiations with the only 2 valid template arguments to avoid
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// putting the body of the function in the header.
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template NTSTATUS NtOpenThread<process_types::internal::Traits32>(
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PHANDLE thread_handle,
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ACCESS_MASK desired_access,
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POBJECT_ATTRIBUTES object_attributes,
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const process_types::CLIENT_ID<process_types::internal::Traits32>*
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client_id);
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template NTSTATUS NtOpenThread<process_types::internal::Traits64>(
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PHANDLE thread_handle,
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ACCESS_MASK desired_access,
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POBJECT_ATTRIBUTES object_attributes,
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const process_types::CLIENT_ID<process_types::internal::Traits64>*
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client_id);
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} // namespace crashpad
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