49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_MEMORY_SCOPED_OPEN_PROCESS_H_
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#define BASE_MEMORY_SCOPED_OPEN_PROCESS_H_
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#include "base/process/process_handle.h"
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namespace base {
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// A class that opens a process from its process id and closes it when the
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// instance goes out of scope.
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class ScopedOpenProcess {
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public:
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ScopedOpenProcess() : handle_(kNullProcessHandle) {
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}
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// Automatically close the process.
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~ScopedOpenProcess() {
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Close();
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}
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// Open a new process by pid. Closes any previously opened process (even if
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// opening the new one fails).
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bool Open(ProcessId pid) {
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Close();
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return OpenProcessHandle(pid, &handle_);
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}
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// Close the previously opened process.
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void Close() {
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if (handle_ == kNullProcessHandle)
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return;
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CloseProcessHandle(handle_);
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handle_ = kNullProcessHandle;
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}
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ProcessHandle handle() const { return handle_; }
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private:
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ProcessHandle handle_;
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DISALLOW_COPY_AND_ASSIGN(ScopedOpenProcess);
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};
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} // namespace base
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#endif // BASE_MEMORY_SCOPED_OPEN_PROCESS_H_
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