crashpad/util/test/scoped_temp_dir_win.cc
Scott Graham 7115130043 win: Add implementation of ScopedTempDir
Also fix implementation of CreateFile which aborted at runtime
when provided POSIX-style permissions.

R=mark@chromium.org
BUG=crashpad:1

Review URL: https://codereview.chromium.org/837123005
2015-01-13 13:51:32 -08:00

89 lines
2.9 KiB
C++

// 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/test/scoped_temp_dir.h"
#include <windows.h>
#include "base/logging.h"
#include "base/rand_util.h"
#include "base/strings/string16.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "gtest/gtest.h"
namespace crashpad {
namespace test {
// static
base::FilePath ScopedTempDir::CreateTemporaryDirectory() {
wchar_t temp_path[MAX_PATH + 1];
DWORD path_len = GetTempPath(MAX_PATH, temp_path);
PCHECK(path_len != 0) << "GetTempPath";
base::FilePath system_temp_dir(temp_path);
for (int count = 0; count < 50; ++count) {
// Try create a new temporary directory with random generated name. If the
// one we generate exists, keep trying another path name until we reach some
// limit.
base::string16 new_dir_name = base::UTF8ToUTF16(base::StringPrintf(
"crashpad.test.%d.%I64x", GetCurrentProcessId(), base::RandUint64()));
base::FilePath path_to_create = system_temp_dir.Append(new_dir_name);
if (CreateDirectory(path_to_create.value().c_str(), NULL))
return path_to_create;
}
CHECK(false) << "Couldn't find temp dir name";
return base::FilePath();
}
// static
void ScopedTempDir::RecursivelyDeleteTemporaryDirectory(
const base::FilePath& path) {
const std::wstring all_files_mask(L"\\*");
std::wstring search_mask = path.value() + all_files_mask;
WIN32_FIND_DATA find_data;
HANDLE search_handle = FindFirstFile(search_mask.c_str(), &find_data);
if (search_handle == INVALID_HANDLE_VALUE) {
ASSERT_EQ(GetLastError(), ERROR_FILE_NOT_FOUND);
return;
}
for (;;) {
if (wcscmp(find_data.cFileName, L".") != 0 &&
wcscmp(find_data.cFileName, L"..") != 0) {
bool is_dir =
(find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0 ||
(find_data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) != 0;
base::FilePath entry_path = path.Append(find_data.cFileName);
if (is_dir)
RecursivelyDeleteTemporaryDirectory(entry_path);
else
EXPECT_TRUE(DeleteFile(entry_path.value().c_str()));
}
if (!FindNextFile(search_handle, &find_data)) {
EXPECT_EQ(GetLastError(), ERROR_NO_MORE_FILES);
break;
}
}
EXPECT_TRUE(FindClose(search_handle));
EXPECT_TRUE(RemoveDirectory(path.value().c_str()));
}
} // namespace test
} // namespace crashpad