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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
// @file winutil.cpp : Windows related utility functions
//
// /**
// * Copyright (C) 2008 10gen Inc.
// *
// * This program is free software: you can redistribute it and/or modify
// * it under the terms of the GNU Affero General Public License, version 3,
// * as published by the Free Software Foundation.
// *
// * This program is distributed in the hope that it will be useful,
// * but WITHOUT ANY WARRANTY; without even the implied warranty of
// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// * GNU Affero General Public License for more details.
// *
// * You should have received a copy of the GNU Affero General Public License
// * along with this program. If not, see <http://www.gnu.org/licenses/>.
// *
// * As a special exception, the copyright holders give permission to link the
// * code of portions of this program with the OpenSSL library under certain
// * conditions as described in each individual source file and distribute
// * linked combinations including the program with the OpenSSL library. You
// * must comply with the GNU Affero General Public License in all respects
// * for all of the code used other than as permitted herein. If you modify
// * file(s) with this exception, you may extend this exception to your
// * version of the file(s), but you are not obligated to do so. If you do not
// * wish to do so, delete this exception statement from your version. If you
// * delete this exception statement from all source files in the program,
// * then also delete it in the license file.
// */
//
#pragma once
#if defined(_WIN32)
#include "text.h"
#include <atlbase.h>
#include <atlstr.h>
#include <boost/optional.hpp>
#include <sstream>
#include <string>
#include <windows.h>
#include <mongo/base/status_with.h>
namespace mongo {
namespace windows {
inline std::string GetErrMsg(DWORD err) {
LPTSTR errMsg;
::FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
err,
0,
(LPTSTR)&errMsg,
0,
NULL);
std::string errMsgStr = toUtf8String(errMsg);
::LocalFree(errMsg);
// FormatMessage() appends a newline to the end of error messages, we trim it because std::endl
// flushes the buffer.
errMsgStr = errMsgStr.erase(errMsgStr.length() - 2);
std::ostringstream output;
output << errMsgStr << " (" << err << ")";
return output.str();
}
/**
* Retrieve a DWORD value from the Local Machine Windows Registry for element:
* group\key
* e.g. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\KeepAliveTime
*
* On success, returns:
* boost::none if the key does not exist.
* The value read from the registry.
*
* On failure, returns:
* ErrorCodes::InternalError - Unable to access the registry group.
* ErrorCodes::TypeMismatch - Key exists, but is of the wrong type.
*/
StatusWith<boost::optional<DWORD>> getDWORDRegistryKey(const CString& group, const CString& key);
} // namespace windows
} // namespace mongo
#endif
|
