blob: 8bb19e241ec7921add1c535fc4a68e1e47f639bc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
// Copyright (c) 2011 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.
#ifndef BASE_MEMORY_SCOPED_OPEN_PROCESS_H_
#define BASE_MEMORY_SCOPED_OPEN_PROCESS_H_
#include "base/process/process_handle.h"
namespace base {
// A class that opens a process from its process id and closes it when the
// instance goes out of scope.
class ScopedOpenProcess {
public:
ScopedOpenProcess() : handle_(kNullProcessHandle) {
}
// Automatically close the process.
~ScopedOpenProcess() {
Close();
}
// Open a new process by pid. Closes any previously opened process (even if
// opening the new one fails).
bool Open(ProcessId pid) {
Close();
return OpenProcessHandle(pid, &handle_);
}
// Close the previously opened process.
void Close() {
if (handle_ == kNullProcessHandle)
return;
CloseProcessHandle(handle_);
handle_ = kNullProcessHandle;
}
ProcessHandle handle() const { return handle_; }
private:
ProcessHandle handle_;
DISALLOW_COPY_AND_ASSIGN(ScopedOpenProcess);
};
} // namespace base
#endif // BASE_MEMORY_SCOPED_OPEN_PROCESS_H_
|
