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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
// Copyright 2016 The Bazel 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 <windows.h>
#include <algorithm>
#include <memory>
#include <string>
#include "src/test/cpp/util/windows_test_util.h"
#if !defined(COMPILER_MSVC) && !defined(__CYGWIN__)
#error("This test should only be run on Windows")
#endif // !defined(COMPILER_MSVC) && !defined(__CYGWIN__)
namespace blaze_util {
using std::unique_ptr;
using std::wstring;
wstring GetTestTmpDirW() {
DWORD size = ::GetEnvironmentVariableW(L"TEST_TMPDIR", NULL, 0);
unique_ptr<WCHAR[]> buf(new WCHAR[size]);
::GetEnvironmentVariableW(L"TEST_TMPDIR", buf.get(), size);
wstring result(buf.get());
std::replace(result.begin(), result.end(), '/', '\\');
if (result.back() == '\\') {
result.pop_back();
}
return result;
}
bool DeleteAllUnder(wstring path) {
static const wstring kDot(L".");
static const wstring kDotDot(L"..");
// Prepend UNC prefix if the path doesn't have it already. Don't bother
// checking if the path is shorter than MAX_PATH, let's just do it
// unconditionally; this is a test after all, performance isn't paramount.
if (path.find(L"\\\\?\\") != 0) {
path = wstring(L"\\\\?\\") + path;
}
// Append "\" if necessary.
if (path.back() != '\\') {
path.push_back('\\');
}
WIN32_FIND_DATAW metadata;
HANDLE handle = FindFirstFileW((path + L"*").c_str(), &metadata);
if (handle == INVALID_HANDLE_VALUE) {
return true; // directory doesn't exist
}
bool result = true;
do {
wstring childname = metadata.cFileName;
if (kDot != childname && kDotDot != childname) {
wstring childpath = path + childname;
if ((metadata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0) {
// If this is not a junction, delete its contents recursively.
// Finally delete this directory/junction too.
if (((metadata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) == 0 &&
!DeleteAllUnder(childpath)) ||
!::RemoveDirectoryW(childpath.c_str())) {
result = false;
break;
}
} else {
if (!::DeleteFileW(childpath.c_str())) {
result = false;
break;
}
}
}
} while (FindNextFileW(handle, &metadata));
FindClose(handle);
return result;
}
bool CreateDummyFile(const wstring& path) {
HANDLE handle =
::CreateFileW(path.c_str(), GENERIC_WRITE, FILE_SHARE_READ, NULL,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (handle == INVALID_HANDLE_VALUE) {
return false;
}
bool result = true;
DWORD actually_written = 0;
if (!::WriteFile(handle, "hello", 5, &actually_written, NULL) &&
actually_written != 5) {
result = false;
}
CloseHandle(handle);
return result;
}
} // namespace blaze_util
|
