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Unified Diff: util/win/scoped_process_suspend.cc

Issue 1303173011: win: Implement and use ScopedProcessSuspend (Closed) Base URL: https://chromium.googlesource.com/crashpad/crashpad@master
Patch Set: dword -1 Created 5 years, 3 months ago
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Index: util/win/scoped_process_suspend.cc
diff --git a/util/win/scoped_process_suspend.cc b/util/win/scoped_process_suspend.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4450efb5256085627ce8f0c3343daad2c5ed7b78
--- /dev/null
+++ b/util/win/scoped_process_suspend.cc
@@ -0,0 +1,41 @@
+// Copyright 2015 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "util/win/scoped_process_suspend.h"
+
+#include <winternl.h>
+
+#include "base/logging.h"
+
+namespace crashpad {
+
+ScopedProcessSuspend::ScopedProcessSuspend(HANDLE process) : process_(process) {
+ typedef NTSTATUS(__stdcall * NtSuspendProcessFunc)(HANDLE);
+ static NtSuspendProcessFunc func = reinterpret_cast<NtSuspendProcessFunc>(
+ GetProcAddress(GetModuleHandle(L"ntdll.dll"), "NtSuspendProcess"));
+ NTSTATUS status = func(process_);
+ if (status)
+ LOG(ERROR) << "NtSuspendProcess, ntstatus=" << status;
+}
+
+ScopedProcessSuspend::~ScopedProcessSuspend() {
+ typedef NTSTATUS(__stdcall * NtResumeProcessFunc)(HANDLE);
+ static NtResumeProcessFunc func = reinterpret_cast<NtResumeProcessFunc>(
+ GetProcAddress(GetModuleHandle(L"ntdll.dll"), "NtResumeProcess"));
+ NTSTATUS status = func(process_);
+ if (status)
+ LOG(ERROR) << "NtResumeProcess, ntstatus=" << status;
+}
+
+} // namespace crashpad
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