crashpad/util/test/scoped_temp_dir.h
Scott Graham 0849154aed win: Implementation of CrashReportDatabase for Windows
As there are no extended file attributes available on all Windows file
systems (NTFS supports alternate data streams, but Chrome still supports
running on FAT), instead of using metadata attached to the file, metadata
is stored separately in a simple record-based file and keyed by UUID.

Initially, I attempted a metadata file beside each report, each locked
separately more closely mirroring the Mac implementation. But given the
expected number of of active reports (in the 10s to 100s range?) and the
size of the metadata for each, simply storing it all in one file is much
less complicated when considering error situations.

If the serialization/deserialization becomes a measurable problem, it
could be optimized at some complexity by reading/writing only as
necessary, or optimizing the storage.

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

Review URL: https://codereview.chromium.org/867363003
2015-02-11 12:17:05 -08:00

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// 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.
#ifndef CRASHPAD_UTIL_TEST_SCOPED_TEMP_DIR_
#define CRASHPAD_UTIL_TEST_SCOPED_TEMP_DIR_
#include "base/basictypes.h"
#include "base/files/file_path.h"
namespace crashpad {
namespace test {
//! \brief A RAII object that creates a temporary directory for testing.
//!
//! Upon construction, a temporary directory will be created. Failure to create
//! the directory is fatal. On destruction, the directory and all its contents
//! will be removed.
class ScopedTempDir {
public:
ScopedTempDir();
~ScopedTempDir();
//! \brief Returns the path of the temporary directory.
//!
//! \return The temporary directory path.
const base::FilePath& path() const { return path_; }
//! \brief Move the temporary directory to a new temporary location.
void Rename();
private:
//! \brief Creates the temporary directory and asserts success of the
//! operation.
static base::FilePath CreateTemporaryDirectory();
//! \brief Removes all files and subdirectories at the given \a path,
//! including the \a path itself.
//!
//! Failures are recorded by gtest expectations.
//!
//! \param[in] path The path to delete, along with its contents. This must
//! reference a directory.
static void RecursivelyDeleteTemporaryDirectory(const base::FilePath& path);
base::FilePath path_;
DISALLOW_COPY_AND_ASSIGN(ScopedTempDir);
};
} // namespace test
} // namespace crashpad
#endif // CRASHPAD_UTIL_TEST_SCOPED_TEMP_DIR_