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// Copyright 2015 The Cobalt 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 STARBOARD_NPLB_FILE_HELPERS_H_
#define STARBOARD_NPLB_FILE_HELPERS_H_
#include <string>
#include "starboard/file.h"
namespace starboard {
namespace nplb {
// Gets the temporary directory in which ScopedRandomFile places its files.
std::string GetTempDir();
// Creates a random file of the given length, and deletes it when the instance
// falls out of scope.
class ScopedRandomFile {
public:
enum {
kDefaultLength = 64,
};
enum Create {
kCreate,
kDontCreate,
};
// Will create a file of |kDefaultLength| bytes long.
ScopedRandomFile() : size_(kDefaultLength) {
filename_ = MakeRandomFile(size_);
}
// Will create a file |length| bytes long.
explicit ScopedRandomFile(int length) : size_(length) {
filename_ = MakeRandomFile(size_);
}
// Will either create a file |length| bytes long, or will just generate a
// filename. |create| is whether to create the file or not.
ScopedRandomFile(int length, Create create) : size_(length) {
filename_ =
(create == kCreate ? MakeRandomFile(size_) : MakeRandomFilePath());
}
// Will either create a file of |kDefaultLength| bytes long, or will just
// generate a filename. |create| is whether to create the file or not.
explicit ScopedRandomFile(Create create) : size_(kDefaultLength) {
filename_ =
(create == kCreate ? MakeRandomFile(size_) : MakeRandomFilePath());
}
~ScopedRandomFile() { SbFileDelete(filename_.c_str()); }
// Creates and returns a random filename (no path), but does not create the
// file.
static std::string MakeRandomFilename();
// Returns the filename generated for this file.
const std::string& filename() const { return filename_; }
// Returns the SPECIFIED size of the file (not the size returned by the
// filesystem).
const int size() const { return size_; }
// Checks |buffer| of size |size| against this class's write pattern, offset
// by |pattern_offset|. Failures print the original line number |line|.
static void ExpectPattern(int pattern_offset,
void* buffer,
int size,
int line);
private:
// Creates a file with a random name and |length| bytes, returning the path to
// the new file.
static std::string MakeRandomFile(int length);
// Creates and returns a path to a random file, but does not create the file.
static std::string MakeRandomFilePath();
std::string filename_;
int size_;
};
} // namespace nplb
} // namespace starboard
#endif // STARBOARD_NPLB_FILE_HELPERS_H_